Hi Richard like I said on first video the vcc_gt comes only up when it is needed you will it see per example when it is loading windows or when you watch youtube . So I was right it was corrupt bios. Now you must see if smd fea has put your dmi info back in bios and windows key. Good work man 👍
Hi Mike Neal, It's nice to inspire someone, Give this a try on some scrap motherboards or PCBs if you can find any. I used to struggle with this type of desoldering and basically developed my own style which works well for me. I only make it look easy because it really is not difficult! There is an old saying 'a bad workman always blames his tools' but If you can't do it this way then it is almost certainly is the tools you are using. If you cant get the pins of the chip to bridge with leaded solder, make use you are using a chunky enough soldering tip, make sure you have the iron hot enough, and enough wattage 60W+ preferably a T12 soldering station or better (I use 380C but this will vary a bit for different soldering irons) and use a good flux like NC-559-ASM though I think mine is probably fake. If you still struggle to do it, try warming the area with hot air first then bridge the pins with leaded solder, but really it means your soldering iron is not up to the job.
@@orion310591RS I used to struggle with this sort of (de)soldering job like everybody else - try my advice, good quality soldering station like T12 with a big chunky tip, good flux and hot air. Then tell me it isn't as easy as I make it look 😉
Great repair Richard, i also thought that it was a Bios problem, but the missing voltage on the one inductor really caught me off guard, but just another Red herring, that isnt actually the problem!
And sometimes that is the way it is - I also thought it was power rail problem or near short until I found the datasheet for the CPU and realised this rail is a high power (amps) load.
I'm going to add here that I had a v14-ARE with the same condition blinking white power no screen. The Lenovo service bulletin mentions the Lenovo button for recovery, I did a full power reset (battery, cmos. disconnect) then while off held the pinhole button on the right side of the machine until it beeped and turned on in recovery mode. From there I booted to windows and ran the bios update tool and it was fine. Just thought I would post this incase it saves someone a bunch of time and soldering! TLDR: look for pinhole button or Lenovo button and try it first.
Nice one Richard !! Just the job. I was thinking I’d like to know the voltage of that inductor too lol. Ch431 rescued a gigabyte mb with an i5 off a mate who said it was toast. I did the bios and it came to life like yours did kind of. Called him to tell him he can have it back but he’d already taken delivery of a new setup and I could keep it as he figured it was scrap so that went to my son as his first rig. Result 😁 Enjoying the interactive style here, thanks
Nice to see you liked it - I will do more videos like this one, but not all the time. Yes, an eprom programmer (even a very cheap one like CH341A) is an invaluable tool that will pay for itself over and over again. Even my TL866CS which was about €60 was making money for me within the first two jobs
Heya, oke well learn a lot again how those motherbords are bild up ( differant types probably some differances ) I guess. Oh I would love to see you do a samsung galaxy repair that would be great too.
Hello, Richard, how old is the bios programmer software ? Maybe on the website there is a newer version available where newer bios chip models are listed.
OK, my programmer is the older TL866 CS, the latest version is TL866 II+ I've had it for about 4-5 years I am using minipro V6.85 but I also have XGecu Pro V8.51 which is for TL 866 II+ and works with my 866CS plus 1.8V adapter, and that does not list this eprom either. It was fairly easy to get around this problem but it would be nice if the software directly supported it.
No only a couple of times - and I don't have the HDD, but I have no reason to expect this would not be working reliably now as it appears to be a well documented failure on these laptops
Hi Richard, Interesting video. One question/comment, dont you lose a bunch of laptop specific data when you reprogram with a base bin file like this. For example MAC number, serial number, password etc ? Any idea what you actually lose and how important is it ?
Yes - this is why I had to upload the original BIOS file to badcaps.net and the clever guys on there fixed it and gave me a working one - which has the specific data for this laptop still intact. This explains why the forum thread for this model is 8 pages long, and not just one good file for every one to use www.badcaps.net/forum/showthread.php?t=85142&page=8
Hi I used Minipro V6.85 with the TL866 programmer - there are probably newer versions I also have Xgecu Pro V8.51 for the same programmer which is more recent I think You can you the cheaper CH341A programmer for this type of BIOS chip though it does not support as many devices as the TL866 If you need a programmer you can buy from these affiliate links if you like (and I get a little bit of commission thanks) EEPROM Programming TL866 II+ amzn.to/3aXWchh amzn.to/3ckesBK CH341A s.click.aliexpress.com/e/_DeRLni7 amzn.to/3B8N4kM amzn.to/3PHXueX 1.8V ADAPTER (for CH341A and TL866A/TL866CS) s.click.aliexpress.com/e/_DciFyrp amzn.to/3aS6vU0 amzn.to/3PGVp31
I have a s145, it died on me, the power button lights up when pressed and the usb has power (it charges my phone) and the fan runs, the ssd card gets hot but literally nothing else works. I've tried all the suggestions on youtube but nothing I tried does anything, it doesn't have a disk hdd just the ssd. Do you have any help if not can I send it to you to repair and could you give me an idea of cost? I bought a new laptop so time isn't an issue but I could do with the data at leased but I would like it to work rather than just get the data.
Great work, I like your videos. I have Samsung core i5 laptop with the exact same issue it power's up, fan spins, all votages present, however, there is no display on the HDMI output or the laptop screen. I have gone to the forum website you mentioned but I was feeling a bit shy to ask for the bios software since it is my first time there. Could you ask for me the bios software? It's model number is NP370R4E and the board number is BA75-04364D. Thanks in advance.
Please don't be shy, badcaps is one of the friedliest places on the interweb lol Just register (free) then post first in the introductions section as many people do every day, just say hi, a few words about yourself (where you come from, I'm a hobbyists, full time tech whatever applies to you) and if you like say you were recommended to join by Richard at LER youtube channel www.badcaps.net/forum/forumdisplay.php?f=7 You first posts will automatically go into moderation to be approved, this is normal and doesn't take long. After introducing yourself post your BIOS request - all will be fine. Remember myself and everyone else there were new members at some point 🙂
For those who want to de-solder the BIOS chip without hot-air, you can use low-melting point solder which allows you to remove the chip just with the soldering Iron.
when you go to the bios setting (on info) it doesn't have some info about the laptop ? like serial number ? uid ? and some on ? or it does not give some error on power on or reboot related to that ? because the new bios doesn't have the same serial number and other stuff like that, like for example the windows key if is missing the windows wo'nt activate ... and you must fix that with uefi tool for example... ? or Mrs SMDFLEA has fix that on new bios, and pass the old bios info to the new bios ? thanks for upload... ;) greatings from Portugal...
Yeah this is why Mr SMDFlea and others on the badcaps BIOS request thread ask you to upload your original BIOS file, then they extract some info from that and put it in the non corrupted file which they upload back for you. I am not an expert in this area though I am sure if you start a thread on badcaps the guys there will help you learn how to do it, they are a friendly non-secretive bunch of guys. At the moment I'm happy with the fact I got a response within 45 mins (processing times may vary 😉) but if I ever get the time/inclination to look into this field further then i will. You should also try the LER discord server for help/advice www.badcaps.net
Yes the guys on badcaps created me a working file using the laptop specific contents of my old bios Give them a try, it is free to register and download files www.badcaps.net/forum
I have a similar laptop (identical looking mobo) that I got for $150 on a black friday sale. Worked for about a year then one day it was stone dead, no lights no nothing. Took it apart, voltage tested some components near the power plug, mobo seemed to be getting power, battery was fully charged. I was at the limit of my diag abilities but it was looking like a full mobo replacement. A used mobo from ebay was over $200, so now I have a big paperweight. From watching the video I now suspect a corrupted bios. You get what you pay for I guess.
Brian Brians it sounds like you should try fixing your paperweight! As long as you have the basic tools, soldering iron, hot air, leaded solder, flux, it should be pretty easy. If you don't have a programmer, A CH341A is very cheap, easy to use and will program 24 and 25 series BIOS chips. Here is a link (I do get a small commission) if anyone want to buy one 🤞 CH341A s.click.aliexpress.com/e/_DeR... amzn.to/3B8N4kM amzn.to/3PHXueX EEPROM Programming TL866 II+ amzn.to/3aXWchh amzn.to/3ckesBK 1.8V ADAPTER (for CH341A. TL866A, TL86CS) s.click.aliexpress.com/e/_Dci... amzn.to/3aS6vU0 amzn.to/3PGVp31
@@ralphj4012 If you watch the part 1 you will see I remove the main battery and CMOS battery then leave it while I go for lunch 30 minutes. What I did not whow (but did do) was removing the batteries again and holding the power button down for 1 minute, but I do mention doing this in the comments on part 1.
@@LearnElectronicsRepair Apologies must have been asleep at that point (dreaming about pumps and water wheels). You probably did a comparison between the previous and new BIOS images, but I missed that as well.
IN THE NEW GEN YOU JUST WRITE 16MBYTE BIOS AFTER THAT POWER ON AND OFF AND EC CHIP AUTO PROGRAMED (EC FILE PUTTED IN THE MAIN BIOS) th-cam.com/video/me-4FfdFQW8/w-d-xo.html
@@abeleski it’s a fair comment, I meant nothing but humour. Isn’t it mostly pine sap, that and unicorn juice to make it flowwww. Unsure of the shelf life of pine sap but unicorn juice doesn’t have one it’s more of a half-life I’d imagine 🤷♂️
@@Mark_C1 all good mate. You are a decent human being. I was fully expecting back an attack. May the unicorn juice flow through your veins for centuries. Be well.
It works and it was cheap so that will do for me . Expiry dates are obviously not what they used to be, It's more likely the chinese who made my fake flux last month just scanned and copied the label, complete with expiry date, several years ago 🤣
![BOWKYLION - วิงวอน (ex-change) [Official MV]](http://i.ytimg.com/vi/cLdnZWDaO-w/mqdefault.jpg)
I'm glad my suggestion worked. Thanks for the wonderful video, looking forward to the next one.
Give yourself a pat on the back 🙂
Hi Richard like I said on first video the vcc_gt comes only up when it is needed you will it see per example when it is loading windows or when you watch youtube . So I was right it was corrupt bios. Now you must see if smd fea has put your dmi info back in bios and windows key.
Good work man 👍
Yes, I enjoyed the format very much
Thanks, I will make more like this, though not all the time. 🙂
I enjoyed the video. Nice job on desoldering the bios chip quickly. You made it look easy and I feel inspired to give it a try.
Hi Mike Neal, It's nice to inspire someone, Give this a try on some scrap motherboards or PCBs if you can find any. I used to struggle with this type of desoldering and basically developed my own style which works well for me. I only make it look easy because it really is not difficult! There is an old saying 'a bad workman always blames his tools' but If you can't do it this way then it is almost certainly is the tools you are using.
If you cant get the pins of the chip to bridge with leaded solder, make use you are using a chunky enough soldering tip, make sure you have the iron hot enough, and enough wattage 60W+ preferably a T12 soldering station or better (I use 380C but this will vary a bit for different soldering irons) and use a good flux like NC-559-ASM though I think mine is probably fake.
If you still struggle to do it, try warming the area with hot air first then bridge the pins with leaded solder, but really it means your soldering iron is not up to the job.
"You made it look easy". Thats a trap. When you see something like that, it means professional person did it, and it looked easy.
@@LearnElectronicsRepair thanks for the tips. I’ll give it a try.
@@orion310591RS I used to struggle with this sort of (de)soldering job like everybody else - try my advice, good quality soldering station like T12 with a big chunky tip, good flux and hot air. Then tell me it isn't as easy as I make it look 😉
Great repair Richard, i also thought that it was a Bios problem, but the missing voltage on the one inductor really caught me off guard, but just another Red herring, that isnt actually the problem!
And sometimes that is the way it is - I also thought it was power rail problem or near short until I found the datasheet for the CPU and realised this rail is a high power (amps) load.
Very interesting one! Beeing a repair guy not always easy. Cpu voltages fluctuating and the fix is the bios chip. Not easy at all.
I'm going to add here that I had a v14-ARE with the same condition blinking white power no screen. The Lenovo service bulletin mentions the Lenovo button for recovery, I did a full power reset (battery, cmos. disconnect) then while off held the pinhole button on the right side of the machine until it beeped and turned on in recovery mode. From there I booted to windows and ran the bios update tool and it was fine. Just thought I would post this incase it saves someone a bunch of time and soldering! TLDR: look for pinhole button or Lenovo button and try it first.
Nice one Richard !! Just the job. I was thinking I’d like to know the voltage of that inductor too lol. Ch431 rescued a gigabyte mb with an i5 off a mate who said it was toast. I did the bios and it came to life like yours did kind of. Called him to tell him he can have it back but he’d already taken delivery of a new setup and I could keep it as he figured it was scrap so that went to my son as his first rig. Result 😁 Enjoying the interactive style here, thanks
Nice to see you liked it - I will do more videos like this one, but not all the time. Yes, an eprom programmer (even a very cheap one like CH341A) is an invaluable tool that will pay for itself over and over again. Even my TL866CS which was about €60 was making money for me within the first two jobs
Heya, oke well learn a lot again how those motherbords are bild up ( differant types probably some differances ) I guess. Oh I would love to see you do a samsung galaxy repair that would be great too.
Hello, Richard, how old is the bios programmer software ? Maybe on the website there is a newer version available where newer bios chip models are listed.
OK, my programmer is the older TL866 CS, the latest version is TL866 II+ I've had it for about 4-5 years
I am using minipro V6.85 but I also have XGecu Pro V8.51 which is for TL 866 II+ and works with my 866CS plus 1.8V adapter, and that does not list this eprom either.
It was fairly easy to get around this problem but it would be nice if the software directly supported it.
the XGecu Pro is on V11.00 or higher now I think, might support newer chips. but not sure if your programmer works with that.
Ups miss diagnosed the problem :P would have followed the rabbit hole way to far on that one :P
Thanks for uploading another good video. Did you repeatedly try to reboot the laptop to check for sustainability ?
No only a couple of times - and I don't have the HDD, but I have no reason to expect this would not be working reliably now as it appears to be a well documented failure on these laptops
Hi Richard, Interesting video. One question/comment, dont you lose a bunch of laptop specific data when you reprogram with a base bin file like this. For example MAC number, serial number, password etc ? Any idea what you actually lose and how important is it ?
Yes - this is why I had to upload the original BIOS file to badcaps.net and the clever guys on there fixed it and gave me a working one - which has the specific data for this laptop still intact.
This explains why the forum thread for this model is 8 pages long, and not just one good file for every one to use
www.badcaps.net/forum/showthread.php?t=85142&page=8
Modern laptops seem to suffer from BIOS self-destruction a lot. 15 years ago this was a very rare problem. Now it is very common.
So it seems - this model in particular has a large number of posts for bios requests on badcaps.net
congrats on the fix. I'm having the same issue with a Acer laptop. can I ask you what software you use for flashing? thanks
Hi I used Minipro V6.85 with the TL866 programmer - there are probably newer versions
I also have Xgecu Pro V8.51 for the same programmer which is more recent I think
You can you the cheaper CH341A programmer for this type of BIOS chip though it does not support as many devices as the TL866
If you need a programmer you can buy from these affiliate links if you like (and I get a little bit of commission thanks)
EEPROM Programming
TL866 II+
amzn.to/3aXWchh
amzn.to/3ckesBK
CH341A
s.click.aliexpress.com/e/_DeRLni7
amzn.to/3B8N4kM
amzn.to/3PHXueX
1.8V ADAPTER (for CH341A and TL866A/TL866CS)
s.click.aliexpress.com/e/_DciFyrp
amzn.to/3aS6vU0
amzn.to/3PGVp31
I have a s145, it died on me, the power button lights up when pressed and the usb has power (it charges my phone) and the fan runs, the ssd card gets hot but literally nothing else works. I've tried all the suggestions on youtube but nothing I tried does anything, it doesn't have a disk hdd just the ssd. Do you have any help if not can I send it to you to repair and could you give me an idea of cost? I bought a new laptop so time isn't an issue but I could do with the data at leased but I would like it to work rather than just get the data.
Thank You,
I have the same board and issue. I hope it can fix my laptop.
Great work, I like your videos. I have Samsung core i5 laptop with the exact same issue it power's up, fan spins, all votages present, however, there is no display on the HDMI output or the laptop screen. I have gone to the forum website you mentioned but I was feeling a bit shy to ask for the bios software since it is my first time there. Could you ask for me the bios software? It's model number is NP370R4E and the board number is BA75-04364D. Thanks in advance.
Please don't be shy, badcaps is one of the friedliest places on the interweb lol
Just register (free) then post first in the introductions section as many people do every day, just say hi, a few words about yourself (where you come from, I'm a hobbyists, full time tech whatever applies to you) and if you like say you were recommended to join by Richard at LER youtube channel
www.badcaps.net/forum/forumdisplay.php?f=7
You first posts will automatically go into moderation to be approved, this is normal and doesn't take long.
After introducing yourself post your BIOS request - all will be fine. Remember myself and everyone else there were new members at some point 🙂
ma carte mère est endommagé irréparable . si vous plais savez vous quel sont les cartes mère compatible (cite ou)
What’s the main issue ?
For those who want to de-solder the BIOS chip without hot-air, you can use low-melting point solder which allows you to remove the chip just with the soldering Iron.
Yes that would work. A bit like my technique of adding leaded solder, but it reduces the temperature even further
@@LearnElectronicsRepair Yes exactly that and the other benefit is that it cools down much slower.
when you go to the bios setting (on info) it doesn't have some info about the laptop ? like serial number ? uid ? and some on ? or it does not give some error on power on or reboot related to that ? because the new bios doesn't have the same serial number and other stuff like that, like for example the windows key if is missing the windows wo'nt activate ... and you must fix that with uefi tool for example... ? or Mrs SMDFLEA has fix that on new bios, and pass the old bios info to the new bios ? thanks for upload... ;) greatings from Portugal...
Yeah this is why Mr SMDFlea and others on the badcaps BIOS request thread ask you to upload your original BIOS file, then they extract some info from that and put it in the non corrupted file which they upload back for you. I am not an expert in this area though I am sure if you start a thread on badcaps the guys there will help you learn how to do it, they are a friendly non-secretive bunch of guys. At the moment I'm happy with the fact I got a response within 45 mins (processing times may vary 😉) but if I ever get the time/inclination to look into this field further then i will. You should also try the LER discord server for help/advice
www.badcaps.net
Yes the guys on badcaps created me a working file using the laptop specific contents of my old bios
Give them a try, it is free to register and download files www.badcaps.net/forum
Amazing
Had the same problem with two Ideapads (320 I think) last month. Modern laptops do have bios issues.
Next one you see give badcaps.net/forum a try
@@LearnElectronicsRepair I will Richard
I have a similar laptop (identical looking mobo) that I got for $150 on a black friday sale. Worked for about a year then one day it was stone dead, no lights no nothing. Took it apart, voltage tested some components near the power plug, mobo seemed to be getting power, battery was fully charged. I was at the limit of my diag abilities but it was looking like a full mobo replacement. A used mobo from ebay was over $200, so now I have a big paperweight. From watching the video I now suspect a corrupted bios. You get what you pay for I guess.
Brian Brians it sounds like you should try fixing your paperweight! As long as you have the basic tools, soldering iron, hot air, leaded solder, flux, it should be pretty easy. If you don't have a programmer, A CH341A is very cheap, easy to use and will program 24 and 25 series BIOS chips. Here is a link (I do get a small commission) if anyone want to buy one 🤞
CH341A
s.click.aliexpress.com/e/_DeR...
amzn.to/3B8N4kM
amzn.to/3PHXueX
EEPROM Programming
TL866 II+
amzn.to/3aXWchh
amzn.to/3ckesBK
1.8V ADAPTER (for CH341A. TL866A, TL86CS)
s.click.aliexpress.com/e/_Dci...
amzn.to/3aS6vU0
amzn.to/3PGVp31
Can you compare the 2x bios files?
Agree. For shits and giggles it would be fun to compare them. Especially if we can make some sense of the bin file structure. I’m guessing FF’s
@@Mark_C1 I didn't but someone else asked as well so I feel like I will
Have to ask whether you had tried disconnecting the CMOS battery? I have seen that help some laptops come back to life
We may never know, this was pointed out in the previous video (may have been a simple boot loop caused by a stuck BIOS)
@@ralphj4012 If you watch the part 1 you will see I remove the main battery and CMOS battery then leave it while I go for lunch 30 minutes. What I did not whow (but did do) was removing the batteries again and holding the power button down for 1 minute, but I do mention doing this in the comments on part 1.
@@LearnElectronicsRepair Apologies must have been asleep at that point (dreaming about pumps and water wheels). You probably did a comparison between the previous and new BIOS images, but I missed that as well.
@@ralphj4012 No that I did not do - but think I will have a look at it
pumps and waterwheels hehehe😅
Hi teacher
Learn
Video laptop repair bassic come advenced
Thank
man 128/8bit=16mb
dont speend 1 day for check
only see 25 that spi
if see 24 that eeprom
25q16=2MB 25Q32=4M
25Q64=8MB
25Q128=16MB
Richard the info for the PL5901 was right in the schematic on the right side. Look at the time and pause.
th-cam.com/video/CfrForRtJpM/w-d-xo.html
Yeah I saw that but it does not mention the voltage of this rail. Mostly because it is variable I think, like the Vcore on a CPU or GPU.
@@LearnElectronicsRepair It just mentioned the Vboot (startup) voltage which is 0, so it was correct.
IN THE NEW GEN YOU JUST WRITE 16MBYTE BIOS
AFTER THAT POWER ON AND OFF AND EC CHIP AUTO PROGRAMED (EC FILE PUTTED IN THE MAIN BIOS)
th-cam.com/video/me-4FfdFQW8/w-d-xo.html
Maybe no power on mosfet because you shut the laptop screen close when checking voltage 🙄 grandpa?
Actually that is a good point. 🙂
your flux expired 2 years ago
It’s not milk bro 😁
@@Mark_C1 i didnt put the expiry there bro. The manufacturer did. I would hope they know if its milk or not as they make it.
@@abeleski it’s a fair comment, I meant nothing but humour. Isn’t it mostly pine sap, that and unicorn juice to make it flowwww. Unsure of the shelf life of pine sap but unicorn juice doesn’t have one it’s more of a half-life I’d imagine 🤷♂️
@@Mark_C1 all good mate. You are a decent human being. I was fully expecting back an attack. May the unicorn juice flow through your veins for centuries. Be well.
It works and it was cheap so that will do for me . Expiry dates are obviously not what they used to be, It's more likely the chinese who made my fake flux last month just scanned and copied the label, complete with expiry date, several years ago 🤣