A lot of the resistors and capacitor circuitry on the bottom board are for signal filtering. This really is quite an amazing quad, a true triumph of engineering. DJI did an amazing job! Even most of the anti-DJI people are impressed.
I am a hardcore DIY enthusiast and have built countless drones I purchased this due to it's flight time and size. I still fly miniquads for the pure exhilaration but this is so great for travel.
Dear Nils, thanks for the instructive video ! Just wondering if you could see any numbering on the Barometric Sensor, i.e. can you identify who manufactured it and/or what type it is.
I like this video. Your information on the components is fascinating. I crashed my Mavic for the second day in a row, but this time a plastic bracket holding the gimbal broke. FYI, either a metal sided building blocks GPS and the drone becomes confused, or the prop air flow changes when next to a vertical wall. Either way, it seemed like the building sucked the drone in when it was 3 feet away. Yeah, I know, shouldn't have been that close. Looking at other YT videos, broken gimbal brackets or cables does not seem to be uncommon. I was hoping that this would show me how easy or hard it would be to get into that area. Perhaps a video on that?
The down facing cameras are optical flow cameras that track location/movent on the ground, not "landing cameras", although you could say the cameras help locate the Quadcopter over its landing site.
In a modern world of things being made more modular, the whole board comprising the 4 esc's would need replacing if only the one was to fail....That said a marvel of miniaturization and a fantastic performer.... Brave to strip it down by the way.
This was terrific! Thank you so much for the time and effort you put into this. Which Board in your opinion is the "Core Board" that controls/provides video signal? I've got a Mavic whose video feed back to my iPad will freeze 100m away. DJI has told me the Core Board needs replacement. They wanted nearly $400 ; $306 for the part, $65 for the labor. The low cost of labor tells me it may be the first board that you removed. Thanks for your reply!
Thank you for not making the video 20 minutes long like another video similar to yours. Yours was informative and complete. Now I don't have to tear mine apart to see what's in it.
I really appreciate these videos. It's fascinating to see how much electrical and mechanical engineering went into such a powerful device that's about the size of an Arizona Iced Tea. Two questions: 1) does the air intake only draw air from where the bubble dome might otherwise cover and 2) would the aircraft still fly without the entire wifi module, including the wifi antenna?
Tomm Venable hey Tomm, 1. Yes but there is a gap for air to flow freely over the ESCs and the back of the 'brain' chips. 2. Yes I have the WiFi module on my desk while the mavic is flying. It works without module or antenna. My guess is that it's only turned on when you select it with the toggle switch.
Very well shown and explained. Thanks so much! I'm planning to mount a GPS tracker (the RF-V16) to my Mavic. Can you recommend a spot on the Mavic where interference with the compass and the IMU is most likely not creating issues?
Marco Cantieni hey Marco, I would put it up front above the camera gimbal or if you could, on the battery itself as it would then be on the CG. The back lump contains the mavic GPS and compass.
I thoroughly enjoyed that. Have you investigated the spring mechanism that comprises each arm? ie. how the arms fold out! I'm curious to know if that setup also doubles as a damper to isolate any vibrations from the motors!
Nice video. Can you recommend a good distributor to buy parts from. I am looking for the small component that sits on the engine that is used to secure the propeller. I hate to buy the leg for the part.
Would be interesting to know what thermal paste they used, and if a better quality thermal paste (such as artic silver) would make a difference in temps.
Great video! Just one important question: in which memory chip the flight log data are stored? I think there should be an onboard dedicated flash memory chip but it seems to me not to be present among the illustrated chips. Any help is very appreciated, thank you.
Thanks Nils, very interesting, Id probably do the same if mine would actually arrive. The 7544 AON NFets are rated 30v 30A so theres plenty of room for overcurrent issues. The battery is 3830mAH and if you take their max flight time of 27 min means its drawing just over 8.5A in flight, thats 2.12A per motor, amazingly low. (60/27min=2.222*3830mAH=8.511A/4=2.127A/motor)
I was surprised by that as well - they seem to be the first major manufacturer to achieve these 27-ish minute flight times using a 3S battery and a gimbal - most other manufacturers (even DJI with the P3) had to move to 4S systems in the past to achieve flight times in that region. I suppose that they do have the R&D capacity to completely optimise the propulsion system from the ground up.
My guess is that the 27 minutes is based on exhausting the battery to the lowest they will allow in settings (15% low power alert, 10% critical power alert). If you quickly lifted off asap on a full pack and immediately transition to gentle forward flight in normal mode and simply flew lazy circles in forward flight (I might try this using POI mode) you would probably get close to 27 minutes. Just as is the case with helicopters there is a concept called effective translational lift. When any type of rotorcraft including quads is in forward cruising flight there is additional lift generated as opposed to hovering flight. This lift reduces fuel or battery consumption. I routinely log 20+ minute flights and those flights include lots of time zipping around in sport mode and other energy consuming maneuvers. I'm quite happy with DJI's stated flight times and believe them to be honest. Do any of us get the manufacturer quoted EPA mandated MPG estimates for our cars? That would be "no".
harry camper apparently it depends on how you're flying eg. Lots of speed changes & altitude changes. I got 2 flights totalling 23 minutes & still had at least 15% remaining
harry camper yeah last year I was flying a syma X5sc 7mins if you're lucky. It's been windy here last few days, that's something else now I think that will affect flight time, but next time I fly I'm going to test max flight time
Thank You for the video. Do you have any more info on the 1st USB port that can be accessed through the side? Well guess I don't need to replace the core board. I found the old cable that came with the drone when I first got it and it worked. So I am happy and your videos came in really handy. Do you have a source for fresh heat compound?
Nice video Nils! I have a question...after i crashed my mavic, the little piece that cover one of thoose forward sensor broke! It is easy to fix that if i get a new piece? It is possible to repair without open the mavic? Thanks
Great teardown, and impressive to see how compact they've made it. Thanks for posting this. Have you opened up the gimbal and camera section yet? I'm curious whether there are analog video cables going from the gimbal into the body - and if they can be incercepted/rerouted and reused for connecting a different camera. I know the camera is pretty awesome but I'm interested in fitting a super compact thermal sensor if possible.
Ørjan Sandland I would say rather not, it's such an integrated system with the aircraft using the camera for tracking and such, I'm pretty sure it would show as an error if it were disconnected or rerouted.
Hello, very useful video. Do you know where to get parts like ribbon cables for the mavic? My copter went into water and I broke a ribbon while opening the heat sink bottom! Thanks/Lars
I'm still amazed how this thing could achieve 27 minute flight time on a 3S battery. In my mini quads even without any HD cameras and bare minimum electronics for FPV flight, the best I can get is 17 minutes :(
Hey Mauricio, what do you mean regular one? I remember the wires to the motors were soldered on, so if you need to replace it, you should have a soldering iron. If you solder on a new arm and the motor spins the wrong way, you can switch two of the three wires and the motor will turn the correct way. Let me know if you need more help! Cheers, Nils
Nice vid! Regarding amps through the wiring- battery is around 4 amp/h, assuming the battery to be drained in 20 minutes, given hard use, then we're talking 12 amps or 3 amps per esc/ motor.................it's an incredibly efficient machine :)
So I noticed an amber light flashing on the circuit board on my mavic pro, Did yo come across this small LED when you took the mavic apart? I have a picture and video of it if you're interested in watching it. DJI would not comment on it, but they did say not to worry about it. However, I would be interested in finding out what it's connected to on the board and what it's for.
Hey Nitesh, I think it's the one which you can see through the back? I would imagine it's just some diagnostics light, maybe it flashes if you use the back diagnostics micro-usb port? Maybe it's for testing?
Nils Heidorn hey, thanks for watching! No I didn't see any seals at all however if you watch my review video you'll see I broke the WiFi flat-flex and on that there was a drop of sealant which you'd have to remove to get into the bottom without breaking it off like I did.
Yup, by now i saw your video... Sorry for that damage :-( You scored one for the team though if that helps... Did you manage to have that repaired ? Thanks again anyways ! (other Nils)
Great vid. Nils, thank you very much for sharing and keep up the good work. Is it possible for you to do a teardown of the controller? I would really want to see how we can silence the beeping with RTH and low battery. Cheers,
Did you see any way to replace the SD card slot? I think mine may be broken. It will not read any SD card I put in it. I've formatted them in my computer and Phantom 3 pro. They work in everything else but my Mavic. Or would i just have to buy a new board?
Hi Nils, Recently I got flew my Mavic to close to the ocean, where I believe a wave may have crashed on top of it. The Mavic lost connection and returned home. The Mavic will power on and go through all it start up checks but will not connect to controller. I've tried linking the controller and Mavic by going through process of what dji recommend , and by doing this, I've realized the light near my sd card is not working of flashing. Any thoughts of what my problem would be? cheers.
So the GPS. Wifi, Occusync and basically all external comms are located at the back? My question is related to where to best position a minitracker device (outside the shell obviously) to reduce interference). The front I guess?
Hey, you're very welcome. I think, judging by how computers work, the mainboard would be the one I featured (with most of the electronics). The ESC board, I assume, would be called the power board. I hope this helps!
Some of his comment. "Oh, here is something.", "I don't know what that does.", "Oh, here is a button', "I don't know what that does" What is the point? Other than to destroy a perfectly good drone.
Drones above Thanks! There is one in the rear "bump" and one in the front "bump". I don't know which one is which. You can see how to remove the other panels on another video I made.
Does anyone know whether DJI uses real time software image stablisation as well as mechanical stabilisation with the Phantom and Mavic gimbals? Their gimbals use really soft rubber dampeners and from my observations of the gimbals flapping around in strong gusts the image seems to be more stable than what "should" be achievable with just the gimbal motors, even if they are apparently accurate to 0.02 degrees.
Hey Sam, I think this is only mechanical as the sensor shoots 4k and there is no cropping. You also notice in high winds that it does actually shake quite a bit but the gimbal is just suspended from "rubber bands".
Nice video mate. I had it apart quickly and reapplied some past. mine was a bit of a mess inside. I did a tear down video of the controller if anyone is interested. I had to silence the bleating of it. rather annoying.
Hello, I have big problems with my Mavic Pro, I crashed in to bridge and the river and after the cleaning with fresh watter and drying my Mavic wont start, battrry is On but Mavic Wont start. What could be the problem I opened when I cleaned but the parts are ok, I think that is no power from batterry to motherbord. I don't know what to do :(
Hello dear i have problem with my mavic.when i turn it on, this coil smd beside the sd card slot is very very hot and after 2 or 3 min. Connection lost with transmitter.have short circuit in 4 pins in coil.where can be the problem :(
I am repairing my Mavic Pro after water damage. It has been dried out for several days prior to attempting the repair. It is coming on fine, but the only issue is the remote and/or WiFi connection. Since the crash, I have had the drone connect a hand full of time to the remote. Totally by random chance, I suppose, but to me means that there could be fix before a replacement of parts. I have tried cleaning the Core Board and WiFi board with contact cleaner (don't have anything to lose at this point), but that didn't do anything. After research, I figure the first step would be to try and replace the WiFi board ($15), then the Core Bard ($350). Any ideas before I do this?
Quick question for anyone. I tore my pro down to repair the front vision sensors, the WiFi board and the camera gimble. Two black plastic rings (washers) fell out and I have no idea from where. Can someone please help me out with where they are suppose to go.
LMAO "Japanese quality control" "Massive Takata Airbag Recall" "Japan Recalls 7 Million More Cars With Takata Airbags" "Panasonic recalls over 43,000 Toughbook battery packs for overheating" "Rumors are circling that Toyota Motor Corp. has agreed to settle a U.S. criminal probe over the sudden acceleration of some of its vehicles. " "Toyota recalls 369,000 units due to glitch in inverter and assembly issues" those are just the past 3 years.
Can identify the camera sensor. My Mavic was attacked by a palm tree and crashed. I am now getting a camera sensor error and am wonder if it is something I can repair myself or if I need to take it in somewhere. Thanks for the inside look.
Nils Rohwer none that I can see. I took it to a repair shop and they said a wire came out of the camera and they can only replace it, not repair it. No image is available but mechanically everything is good.
@@csocsika1700 yes exactly. It's just a little drier but that doesn't matter,as long as you can efficiently remove the head to the heatsink it will be fine.
I'm completely useless when it comes to this stuff, nor do I own a mavic (I'd like to). That said, this was fascinating! Well done on the close ups and descriptions.
Nice teardown, shame about the torn flat flex, luckily nothing major that prevents it flying :-) The most I've done is remove the rear diffuser for the LEDs to get a look at the rear USB to see if I can access it without opening the thing up, unfortunately its obscured by the case and the aforementioned flat flex for the wifi. I will not be opening it right up, having seen this and the original tear down, there's no need. It runs Android with custom scripts and TCP/IP stack that interface it with the remote, running NMAP with it on wifi mode revealed four open ports, NTP port 123 UDP, MDNS port 5353 UDP, jetdirect port 9103 TCP, jetdirect port 9102 TCP. I assume the last two establish a network with the remote, however I was able to connect to them via telnet, not able to log in, the connection eventually times out.
Dji even parrot drones have HEATING RESISTORS to keep some measuring electronics at constant temp. Measurement electronics like inertia, barometer gyro compass give accurate reading if kept at constant temp as varying temp summer to winter will result in false readings. To keep constant temp they choose to keep little high temp and it’s easy to maintain high temp with help of fan. FAN IS NOT JUST TO KEEP CPU COOL , BUT TO MAINTAIN CONSTANT TEMP. CPU IN DRONES DOESN’T RUN THAT HOT . that’s why drones start their fan as soon as turning on as resistors for heating heat fast. Thanks.
i am getting IMU calibration failed error code -71 after a hard landing on my mavic pro. I tried re calibrating multiple times without any success. I was thinking to change the imu module.This one, www.aliexpress.com/item/32949461904.html I hope its the correct one ? and hopefully it will fix the problem ? Also as from your video i can clearly see the imu unit, do I need to remove that main board completely to replace imu ? Any suggestions ?
A lot of the resistors and capacitor circuitry on the bottom board are for signal filtering. This really is quite an amazing quad, a true triumph of engineering. DJI did an amazing job! Even most of the anti-DJI people are impressed.
I am a hardcore DIY enthusiast and have built countless drones I purchased this due to it's flight time and size. I still fly miniquads for the pure exhilaration but this is so great for travel.
The rear USB port is for pulling the flight data at the factory
Dear Nils, thanks for the instructive video ! Just wondering if you could see any numbering on the Barometric Sensor, i.e. can you identify who manufactured it and/or what type it is.
DJI Mavic detail disassembly is a great skill.
The video is great.
Awesome video, thumbs up from us and cheers from sunny IGY Simpson Bay Marina, Sint Maarten in the Caribbean.
Cheers, thanks for watching.
5:53 Mavic Pro does not use Lightbridge. It uses OcuSync, and the Mavic 2 series use OcuSync 2.
Those are components I'll never want to see on my Mavic when they finally get around to delivering it.
Thanks for the teardown.
Green Silver thank you.
I like this video. Your information on the components is fascinating. I crashed my Mavic for the second day in a row, but this time a plastic bracket holding the gimbal broke. FYI, either a metal sided building blocks GPS and the drone becomes confused, or the prop air flow changes when next to a vertical wall. Either way, it seemed like the building sucked the drone in when it was 3 feet away. Yeah, I know, shouldn't have been that close. Looking at other YT videos, broken gimbal brackets or cables does not seem to be uncommon. I was hoping that this would show me how easy or hard it would be to get into that area. Perhaps a video on that?
oh, how we love these tear downs!
The down facing cameras are optical flow cameras that track location/movent on the ground, not "landing cameras", although you could say the cameras help locate the Quadcopter over its landing site.
Thanks for the correction and information.
Nice tear down. Lots of complex stuff in such a small package.
Indeed!
In a modern world of things being made more modular, the whole board comprising the 4 esc's would need replacing if only the one was to fail....That said a marvel of miniaturization and a fantastic performer.... Brave to strip it down by the way.
This was terrific! Thank you so much for the time and effort you put into this. Which Board in your opinion is the "Core Board" that controls/provides video signal? I've got a Mavic whose video feed back to my iPad will freeze 100m away. DJI has told me the Core Board needs replacement. They wanted nearly $400 ; $306 for the part, $65 for the labor. The low cost of labor tells me it may be the first board that you removed. Thanks for your reply!
Thank you for not making the video 20 minutes long like another video similar to yours. Yours was informative and complete. Now I don't have to tear mine apart to see what's in it.
Very good video!!! Are there any schematics for DJI products?
Absolutely fascinating! Thank you.
PAYBACK118 thanks for watching!
I really appreciate these videos. It's fascinating to see how much electrical and mechanical engineering went into such a powerful device that's about the size of an Arizona Iced Tea. Two questions: 1) does the air intake only draw air from where the bubble dome might otherwise cover and 2) would the aircraft still fly without the entire wifi module, including the wifi antenna?
Tomm Venable hey Tomm, 1. Yes but there is a gap for air to flow freely over the ESCs and the back of the 'brain' chips. 2. Yes I have the WiFi module on my desk while the mavic is flying. It works without module or antenna. My guess is that it's only turned on when you select it with the toggle switch.
Amazing piece of technology!
Thank you for sharing this video. Look forward to getting one. Could you also share what is inside the sensor board?
Ocu sync chip is what I'm really interested in,I'd willingly paying 8000yuan just for a video transmitter that sends hd video more than 7km
Thank you. Can you take some shots of the gimbal and camera and how it attaches to the aircraft. Great vid thank you
Scott sure, I'll make a follow up answering some of the questions which have been asked
Very well shown and explained. Thanks so much! I'm planning to mount a GPS tracker (the RF-V16) to my Mavic. Can you recommend a spot on the Mavic where interference with the compass and the IMU is most likely not creating issues?
Marco Cantieni hey Marco, I would put it up front above the camera gimbal or if you could, on the battery itself as it would then be on the CG. The back lump contains the mavic GPS and compass.
I thoroughly enjoyed that. Have you investigated the spring mechanism that comprises each arm? ie. how the arms fold out! I'm curious to know if that setup also doubles as a damper to isolate any vibrations from the motors!
PS: the push button you discovered near the wif toggle switch is used for binding/pairing the remote or a replacement with the aircraft.
DAXimusTT good point, I'll check it out and make a follow up if there is anything to report. Thanks for the info on the push button.
my pleasure.
Great insight ! Can you please post a video where you would add and extra battery to the aircraft so it'll fly longer ?
yes. want to see that! Extra battery
I'm not sure as it's all a balancing act, when you add extra weight in the form of batteries you have diminishing returns.
Nils Rohwer. Mmmm ok
Nice video. Can you recommend a good distributor to buy parts from. I am looking for the small component that sits on the engine that is used to secure the propeller. I hate to buy the leg for the part.
Awesome vid nils, just wonder, if that main board can be remove/detached? cause i want to change the middle frame...
Hi, very clear video!! Is there a microswitch to perform an hard reset? This would be useful to restart the ftp connection in a bricked motherboard!
Would be interesting to know what thermal paste they used, and if a better quality thermal paste (such as artic silver) would make a difference in temps.
I think I'll give that a try...
Great video! Just one important question: in which memory chip the flight log data are stored? I think there should be an onboard dedicated flash memory chip but it seems to me not to be present among the illustrated chips. Any help is very appreciated, thank you.
Thanks Nils, very interesting, Id probably do the same if mine would actually arrive.
The 7544 AON NFets are rated 30v 30A so theres plenty of room for overcurrent issues.
The battery is 3830mAH and if you take their max flight time of 27 min means its drawing just over 8.5A in flight, thats 2.12A per motor, amazingly low. (60/27min=2.222*3830mAH=8.511A/4=2.127A/motor)
I was surprised by that as well - they seem to be the first major manufacturer to achieve these 27-ish minute flight times using a 3S battery and a gimbal - most other manufacturers (even DJI with the P3) had to move to 4S systems in the past to achieve flight times in that region. I suppose that they do have the R&D capacity to completely optimise the propulsion system from the ground up.
My guess is that the 27 minutes is based on exhausting the battery to the lowest they will allow in settings (15% low power alert, 10% critical power alert). If you quickly lifted off asap on a full pack and immediately transition to gentle forward flight in normal mode and simply flew lazy circles in forward flight (I might try this using POI mode) you would probably get close to 27 minutes.
Just as is the case with helicopters there is a concept called effective translational lift. When any type of rotorcraft including quads is in forward cruising flight there is additional lift generated as opposed to hovering flight. This lift reduces fuel or battery consumption.
I routinely log 20+ minute flights and those flights include lots of time zipping around in sport mode and other energy consuming maneuvers. I'm quite happy with DJI's stated flight times and believe them to be honest. Do any of us get the manufacturer quoted EPA mandated MPG estimates for our cars? That would be "no".
harry camper apparently it depends on how you're flying eg. Lots of speed changes & altitude changes. I got 2 flights totalling 23 minutes & still had at least 15% remaining
harry camper yeah last year I was flying a syma X5sc 7mins if you're lucky. It's been windy here last few days, that's something else now I think that will affect flight time, but next time I fly I'm going to test max flight time
LOL yes Sam that's how a propulsion system of a aircraft works, .....From the ground up!
Thank You for the video. Do you have any more info on the 1st USB port that can be accessed through the side?
Well guess I don't need to replace the core board. I found the old cable that came with the drone when I first got it
and it worked. So I am happy and your videos came in really handy. Do you have a source for fresh heat compound?
It’s to transfer data from th SD card to a PC so you don’t have to remove the SD card.
Thank you for making this video.
Wesley Birden thank you for watching :)
PLEASE PUSH THE BUTTON PUSH THE DAMN BUTTON!!
While it's apart if you spray the circuit board with Plastik70 you've got a mostly waterproof drone.
Carl Michael it's pretty well coated already but a second squirt probably wouldn't hurt. Thanks for watching.
Nice video Nils! I have a question...after i crashed my mavic, the little piece that cover one of thoose forward sensor broke! It is easy to fix that if i get a new piece? It is possible to repair without open the mavic?
Thanks
Great teardown, and impressive to see how compact they've made it. Thanks for posting this.
Have you opened up the gimbal and camera section yet? I'm curious whether there are analog video cables going from the gimbal into the body - and if they can be incercepted/rerouted and reused for connecting a different camera. I know the camera is pretty awesome but I'm interested in fitting a super compact thermal sensor if possible.
Ørjan Sandland I would say rather not, it's such an integrated system with the aircraft using the camera for tracking and such, I'm pretty sure it would show as an error if it were disconnected or rerouted.
Hello, very useful video. Do you know where to get parts like ribbon cables for the mavic?
My copter went into water and I broke a ribbon while opening the heat sink bottom!
Thanks/Lars
impressive, they can still fit a decent vibration absorption structure around the IMU in this tiny space.
Indeed. It's really great.
I'm still amazed how this thing could achieve 27 minute flight time on a 3S battery. In my mini quads even without any HD cameras and bare minimum electronics for FPV flight, the best I can get is 17 minutes :(
Great job. What about the quality of the thermal compound ? Good idea to change it ?
MrRatafla I don't think it's necessary, it's not a sticky version, just a paste which I heaped back onto the chips before closing.
hello sir, nice video, how many barometric sensor are actually in the mavic?
Thanks a bunch for this video. Well designed drone, now I want one even more! Did you notice any dust filter in front of the fan?
MrQlife no, there's a mesh but no real filter.
Great video! Do you know if I need some special soldering for replacing one of the arms? Or just the regular one?
Hey Mauricio, what do you mean regular one? I remember the wires to the motors were soldered on, so if you need to replace it, you should have a soldering iron. If you solder on a new arm and the motor spins the wrong way, you can switch two of the three wires and the motor will turn the correct way. Let me know if you need more help! Cheers, Nils
@@NilsRohwer Thanks! I'll start the repairs on my mavic next week, when all the parts I need to replace arrive.
Nice vid! Regarding amps through the wiring- battery is around 4 amp/h, assuming the battery to be drained in 20 minutes, given hard use, then we're talking 12 amps or 3 amps per esc/ motor.................it's an incredibly efficient machine :)
So I noticed an amber light flashing on the circuit board on my mavic pro, Did yo come across this small LED when you took the mavic apart? I have a picture and video of it if you're interested in watching it. DJI would not comment on it, but they did say not to worry about it. However, I would be interested in finding out what it's connected to on the board and what it's for.
Hey Nitesh, I think it's the one which you can see through the back? I would imagine it's just some diagnostics light, maybe it flashes if you use the back diagnostics micro-usb port? Maybe it's for testing?
Nice job in show us the " inner" mavic.
TX, RX, and Ground are for soldering a transmitter to the board, not for testing. As for the USB it is for programing the board.
Normally those large exposed points on the PCB are test points for a test rig.
hey is it possible for you to do a complete test on the current draw of the motors!? It would be really helpful to the RC community!
PAWAN V there is another comment where it's calculated at about 2.8 amps per motor.
can you take it apart even further, like the underside of the board and motors?
R. Mojo maybe I can get in the top, let's see how brave I am. I will be doing a lot of flying this weekend and didn't want to break it ;)
Great, thank you. I did not see that but did you encounter any Seals, so: will DJI know you did it ?
Nils
Nils Heidorn hey, thanks for watching! No I didn't see any seals at all however if you watch my review video you'll see I broke the WiFi flat-flex and on that there was a drop of sealant which you'd have to remove to get into the bottom without breaking it off like I did.
Yup, by now i saw your video... Sorry for that damage :-( You scored one for the team though if that helps... Did you manage to have that repaired ?
Thanks again anyways !
(other Nils)
Nils Heidorn hey Nils, I didn't manage to repair it but I just left it out and it's absolutely fine. Luckily :)
Great vid. Nils, thank you very much for sharing and keep up the good work. Is it possible for you to do a teardown of the controller? I would really want to see how we can silence the beeping with RTH and low battery. Cheers,
TheCrusader901 I'll see what I can do.
Thank you for this video sir,hope next is back of this core board
Did you see any way to replace the SD card slot? I think mine may be broken. It will not read any SD card I put in it. I've formatted them in my computer and Phantom 3 pro. They work in everything else but my Mavic. Or would i just have to buy a new board?
Hi Nils, Recently I got flew my Mavic to close to the ocean, where I believe a wave may have crashed on top of it.
The Mavic lost connection and returned home.
The Mavic will power on and go through all it start up checks but will not connect to controller. I've tried linking the controller and Mavic by going through process of what dji recommend , and by doing this, I've realized the light near my sd card is not working of flashing.
Any thoughts of what my problem would be?
cheers.
Wonder what the micro usb port is behind main led ? Maybe fatory diag?
So the GPS. Wifi, Occusync and basically all external comms are located at the back? My question is related to where to best position a minitracker device (outside the shell obviously) to reduce interference). The front I guess?
I would say just in front of the battery would be safe, there is nothing there but some wires, no active components.
Great Video Nils. How easy do you think it would be to swap the cameras from one Mavic to another?
I don't see why not, it's a flat flex connector but you would have to be very careful.
Brother where can I find replacement screw for my Mavic? I'm missing the screw that goes to the right rear leg that's attached to the chassis.
thanks for the video. truly amazing engineering.
mvh808 thanks for watching. It's truly marvelous stuff.
Cheers mate, i'm in the process of swapping out the FC/ESC board on my Mavic. Thanks for the overview.
Great insight, thanks for the video!
I was told I need a "main board" for my Mavic Pro 1. Is that the board with the ESCs?
And thank you for this vid, It helped alot.
Hey, you're very welcome. I think, judging by how computers work, the mainboard would be the one I featured (with most of the electronics). The ESC board, I assume, would be called the power board. I hope this helps!
I seriously can't watch. I'm flinching at the flicking sound of the cables being unclipped. Really hope it flys again.
Mike Simmonds it's perfect.
How about wiping some of the thermal paste off and see if we can spot any manufacturer names on those chips!
Actually, I can do this as you can lift up the cans to see. I will do a follow up. Thanks for watching.
Nice teardown! can you say where is compass 1 and compass 2 located on magic pro?
One at the back and another right at the front (see the other video I put up recently). Cheers.
Some of his comment. "Oh, here is something.", "I don't know what that does.", "Oh, here is a button', "I don't know what that does"
What is the point? Other than to destroy a perfectly good drone.
zews1 thanks for watching!
nice Job ! where are the compass located ? i have compass 2 disconnected error
Drones above Thanks! There is one in the rear "bump" and one in the front "bump". I don't know which one is which. You can see how to remove the other panels on another video I made.
Does anyone know whether DJI uses real time software image stablisation as well as mechanical stabilisation with the Phantom and Mavic gimbals? Their gimbals use really soft rubber dampeners and from my observations of the gimbals flapping around in strong gusts the image seems to be more stable than what "should" be achievable with just the gimbal motors, even if they are apparently accurate to 0.02 degrees.
Hey Sam, I think this is only mechanical as the sensor shoots 4k and there is no cropping. You also notice in high winds that it does actually shake quite a bit but the gimbal is just suspended from "rubber bands".
Nice video mate. I had it apart quickly and reapplied some past. mine was a bit of a mess inside. I did a tear down video of the controller if anyone is interested. I had to silence the bleating of it. rather annoying.
Brian Eastwood my Mavic fell out the sky. Now it’s saying main connection data error, accelerometer and gimbal disconnected😔
Can you do a teardown of the battery? They seem very sophisticated.
chasiu75 when I have a second one I may get in there :)
wetalkuav.com/dji-mavic-battery-disassemble/
yes, good one!
Can you please do a tutorial on how to replace the front vision sensor, mine broke :(
Hello, I have big problems with my Mavic Pro, I crashed in to bridge and the river and after the cleaning with fresh watter and drying my Mavic wont start, battrry is On but Mavic Wont start. What could be the problem I opened when I cleaned but the parts are ok, I think that is no power from batterry to motherbord. I don't know what to do :(
Hello dear i have problem with my mavic.when i turn it on, this coil smd beside the sd card slot is very very hot and after 2 or 3 min. Connection lost with transmitter.have short circuit in 4 pins in coil.where can be the problem :(
very very nice!!
I am repairing my Mavic Pro after water damage. It has been dried out
for several days prior to attempting the repair. It is coming on fine,
but the only issue is the remote and/or WiFi connection. Since the
crash, I have had the drone connect a hand full of time to the remote.
Totally by random chance, I suppose, but to me means that there could be
fix before a replacement of parts. I have tried cleaning the Core
Board and WiFi board with contact cleaner (don't have anything to lose
at this point), but that didn't do anything. After research, I figure
the first step would be to try and replace the WiFi board ($15), then
the Core Bard ($350). Any ideas before I do this?
any update on this?
WOW...Great job on making this video. Your lighting & macro photography is outstanding!
tkeeg thank you!
tell me what size screws for Mavik?
Quick question for anyone. I tore my pro down to repair the front vision sensors, the WiFi board and the
camera gimble. Two black plastic rings (washers)
fell out and I have no idea from where. Can someone please help me out with where they are suppose to go.
So many finger prints on the chips, are they yours or from the factory? Certainly not up to Japanese quality control.
LMAO "Japanese quality control"
"Massive Takata Airbag Recall"
"Japan Recalls 7 Million More Cars With Takata Airbags"
"Panasonic recalls over 43,000 Toughbook battery packs for overheating"
"Rumors are circling that Toyota Motor Corp. has agreed to settle a U.S. criminal probe over the sudden acceleration of some of its vehicles. "
"Toyota recalls 369,000 units due to glitch in inverter and assembly issues"
those are just the past 3 years.
Ron Smith I bet there wasn't finger prints left on the PCBs, you can't have everything.
Junior Ocicat dji is chinese anyway. Im surprised there weren't a suicide net in there.
Can identify the camera sensor. My Mavic was attacked by a palm tree and crashed. I am now getting a camera sensor error and am wonder if it is something I can repair myself or if I need to take it in somewhere. Thanks for the inside look.
Hey Kevin, I know the problem with attacking palm trees. Is there physical damage?
Nils Rohwer none that I can see. I took it to a repair shop and they said a wire came out of the camera and they can only replace it, not repair it. No image is available but mechanically everything is good.
tell me what size screws for Mavik
do you know what is the blue stuff name? what kind of pasta is it? could be silicone? thank!
It's thermal paste. It's definitely not silicone. Any thermal paste would do like Arctic silver.
@@NilsRohwer do you mean same like what we using for pc?
looks like this blue stuff is different consistency than normal pc paste.. :S
@@csocsika1700 yes exactly. It's just a little drier but that doesn't matter,as long as you can efficiently remove the head to the heatsink it will be fine.
@@NilsRohwer ok i will try it. thanks!
Wonder how long it took to design and test
salvatore Perna I'm sure this thing had been in the works for years and they waited as the karma was released to unveil it.
Interesting, the FC is exactly like the latest N3 (Naza-M V3)!
Amazing what you can find on youtube lol
Thanks for sharing and have a great week
ABMNS PRODUCTION hey, thank you for the info about thr FC and the kind words. You sir, you have yourself a great week!
Great info!
Great video. Would also like to see How to replace the arms
I maybe I can check but, what happened? Did you break one?
Does your drone still fly? Thanks for the video!
GeoVision yes it's perfect :)
I'm completely useless when it comes to this stuff, nor do I own a mavic (I'd like to).
That said, this was fascinating! Well done on the close ups and descriptions.
great video ! Difficult to find as well in french
Oh, those poor UFL connectors!!!! You should always aim to pull them off with a straight pull, not prising them off from one side!
xjet hi there Bruce :) thanks for tip.
great job. so clear
Nice teardown, shame about the torn flat flex, luckily nothing major that prevents it flying :-)
The most I've done is remove the rear diffuser for the LEDs to get a look at the rear USB to see if I can access it without opening the thing up, unfortunately its obscured by the case and the aforementioned flat flex for the wifi. I will not be opening it right up, having seen this and the original tear down, there's no need.
It runs Android with custom scripts and TCP/IP stack that interface it with the remote, running NMAP with it on wifi mode revealed four open ports, NTP port 123 UDP, MDNS port 5353 UDP, jetdirect port 9103 TCP, jetdirect port 9102 TCP.
I assume the last two establish a network with the remote, however I was able to connect to them via telnet, not able to log in, the connection eventually times out.
Question is....Well it Blend?
most likely.
Dji even parrot drones have HEATING RESISTORS to keep some measuring electronics at constant temp. Measurement electronics like inertia, barometer gyro compass give accurate reading if kept at constant temp as varying temp summer to winter will result in false readings. To keep constant temp they choose to keep little high temp and it’s easy to maintain high temp with help of fan. FAN IS NOT JUST TO KEEP CPU COOL , BUT TO MAINTAIN CONSTANT TEMP. CPU IN DRONES DOESN’T RUN THAT HOT . that’s why drones start their fan as soon as turning on as resistors for heating heat fast. Thanks.
the inside really reminds me of the inside of a smartphone
deimos krijgsman it sure does, albeit a flying one.
i am getting IMU calibration failed error code -71 after a hard landing on my mavic pro. I tried re calibrating multiple times without any success. I was thinking to change the imu module.This one,
www.aliexpress.com/item/32949461904.html
I hope its the correct one ? and hopefully it will fix the problem ? Also as from your video i can clearly see the imu unit, do I need to remove that main board completely to replace imu ? Any suggestions ?
Thank you, very interesting!
Is this based on a French design or a Swiss design ? ,...
100% Chinese design.
thanks i learned a lot. Great video!!
Thanks for watching.
Thanks for this video, although you need to practice more your white balance this was a very clear picture, very informative...
Good stuff boet, thanks
Anton Geldenhuys thanks!
Very nice!! Thanks so much!
Nathan Hoover thanks for watching.