Thank you to everyone who made a purchase on eBay via our affiliate link at rossmanngroup.com/ebay for helping support this type of content. Your viewership is appreciated and as always, I hope you learned something!
got an issue something like this where the MacBook has an X on the battery and won't charge it. But it will run on a battery that has power. Pin 16 on the U7000 chip reads 12v instead of 3-5v. Already changed the chip and Q7055 just in case, pin 4 on the Q7055 shows 12v just like pin 16 on u7000. Thanks in advance
Is it worth buying a MacBook Pro if this is a known problem with it? Apparently it works if you plug it in to the mains...and I think the price is right
Louis. Thanks for all your posts. i learned just enough to know when I'm being ripped off... magsafe light not showing, battery not charging but 2012 MBP boots and works fine on battery; shop recommendation 450 quid for a new (read refurbished) logic board with a 2011 CPU?!!!?. I saw your sysonewire posts on magsafe/SMC recognition (U7000) which make things much clearer.... I''ve got a request. Could you please post an idiots guide for a newbie to find a decent board repair shop? I mean, what questions should we be asking? In UK the shops all have sales guys who will tell you anything... is it fair to ask to meet engineers? I'm thinking a short list of 'telltale' questions like 'what microscope do you use?', 'show me a schematic'. How can I check the so called repair shop even has the basic kit to actually repair a board.... not just steal mine and resell it? Is there some kind of qualification (yeah I know all about Apple qualifications!) or kite-mark ,or ISO standard or something? I know that doesn't defend against part pirates, but it's better than nothing.
Hi Louis, I have a problem with the battery charge on my MacBook Pro A1278. I have seen some of your videos but my problem I can not find a solution. The computer sometimes charges for minutes, passes the green LED light to orange but after a few seconds the light indicates the battery charge still OFF (No light). The computer works with the charger put and the battery is not discharged while this is, that is to say that it does not load but it does not discharge either... can you help me?
I am having the same issue with a mid 2010 MacBook pro. It is not detecting the battery. top right corner has a "x" with a battery symbol. The battery is working has been tested and it works. Will this repair work on the mid 2010?
thanks for very good information about pullup resistor , i'm facing same problem , i replaced resistance with the value of 2k, but on board when i check it's giving me value 235 ohm. and resistance side #1 3.4v and side #2 gives only 0.051v , and battery connector pin 4 gives me 3.4v, but only pin 6 gives me 0.051v, may it's smc bad or some an other part on board, help me out ......thanks
Thanks for the video,my 2011 macbook pro 13 is not charging the battery, the percentage of the battery stay the same if connected to power,the light is dimm green,i checked both resistors and they are fine,could it be the dc inboard ? or something else ? thanks
My Macbook Air 2011 11" recognizes baterry but doesnt charge it. Also there is no magsafe light althought it is holding power from jack and turning on.
I have a question, I recently bought a new macbook pro battery, but i think it's bad, the system says "Replace Now" with cycle count 0 coconut battery says: Status: Poor, Discharging. First, it was 46% then 8% then 7% If my macbook pro logic board is fucked up, would it still detect how much energy exist in the battery?
been watching your battery videos, maybe i missed it?, i finally gave in and bought a used 2011 13 inch..actually i cought a bug, i got another 13inch after..then old 17 core2duocrapola, which i do love but cannot upgrade past kittycat version, that said then another 17inch..OY VEY, ok problem of just one of these late2011 , once charged to 100% , it goes green on charger, meaning full and good ....but then without showing not charging, it is using the battery, how then do i know this?..it hard shuts of after a few hrs, and battery depleted..then very hard to get the charger n board to charge...i plug, unplug 10 plus times till it finally goes orange and will charge, back to 100%. other times i unplug it and it drops 30-70%, meaning its not charging or recognizing it needs a charge, or to stay on ACpower , instead of constantly cycling battery. can you suggest what it could be? oh, yes i have 3 different ac-dc chargers all mac, and same issue..therefore it is the MB i would guess. but since its a 2011, i guess its not worth repairing , cause i can buy a used one 1/2 price of repair, i would guess?. ps thanks for all the youtubing you do..being at 55y old , its good to see your teaching others that could be the next generation of smart logical and respectful people just like you. keep it up, thank you, you are one of the few of good men. [2 thumbs up]
Hi Louis, just a general question here. I have a bunch mint Acer netbooks of the same model. Lately,one of the users discover his battery doesn't charge while plugged in(shown in the battery status). I couldn't check all the other units,so I replace its battery from a backup unit. It didn't solve the problem. Now showing 0%,plugged in, not charging. I check the battery voltage, they are low ard 9V(I assume still chargeable). Am I safe to there's problem with the charging circuit?
Okay silly me, I didn't do the battery recalibration properly(just power off and unplugging battery). Apparently I need to uninstall MS acpi. I'll report back if the calibration works.
hey louis i have macbookpro 13 2011 model and i also have same problem battery is not charging ... when i charge it keep on green but not red even there is 1 percent battery left ... now my mac is completely shut and won't turn on anymore ....so i want to know is that reparable ???? plzz let me know ... i went to apple store they just want me to get new macbookpro or new logic which is like too expensive .. plzzz suggest me ... and i from europ ..... thanks a lot in advance ....
hello, my macbook pro in late 2012 has a battery charging problem, the battery is not charging, the green light of the charger is still light, the charging pourcentagde is 0%, there charging symbol on the battery. I made the reset of the SCM problem is not resolved
Hello Louis My MacBook to not charge, have 5 led blinks and randomly power off disconnect the battery connector but cant power on please same problume help what i can do Thanks
my macbook recognizes the battery for some time then it doesn't anymore, so I get the x sign ( no battery available). After this the cursor freezes randomly, (not the computer). and the keyboard lights are not able to dim the light anymore. SMC chip problem? i just installed a new battery, but i had the same problem with my last battery.
I was trying to pull off the battery adn accidentally touched the battery connector with my screw driver,.SOme smoke came out and the laptop got dead,.I took it to the mechanic and he showed me a blown IC,.He changed the IC and the set turned on but it is not charging the battery,..My set is lying at the mechanic shop since 7 months and he is still trying to figure out as to why the battery is not charging,...Can anyone where the problem cd lie,..so that I can ask the mechanic to look at the particular place and fix it,..??
Hi Please Help! I have a 820-3024 and I'm having problems making it recognise and charge the battery. It's already had a new ISL and an SMC from a known working board, all resistors/caps are ok on and around the charge circuit including the pull-up resistors mentioned in the video, but still no luck! I've gone over & over the schematic and can't seem to work this out. When I plug the mag safe in, the light goes green for a few seconds, then Amber for 5 seconds and back to green. It switches on and works fine and has the latest SMC firmware installed, but the battery has an X in it and only works when plugged in. Any help would be appreciated. Thanks
bro where r u from? my mac wont charge my new battery, it turn on fine when is plug in...but if i unplug it it turn off!...and the light is alwas green from the charger and the battery icon has an X, what can i do? please help!!
i have a macbook that has no power by ac (ac adapter is good) or by battery. pressing the on/off does nothing. what can it be the problem? also where can i buy parts since apple does not sell them? do you where i can get a schematic of the macbook (older model that has two usb sockets on the left side and cd/dvd drive on the right side)?
+tickyul how long did it take you get out of high school? you got an experienced person taking his time out to help us. and you have to say something like that.
youse must be brooklynese....don't youse know know the 'l' in solder is pronounced north of Niagara Falls. the Canuckians can't help themselves same-same as our friends from northern Europe oh, there's no 'h' in 'extraction' ;) good work sir, I mean y'all
![ลองสุ่มไอโฟน 990 โกงมั้ย? [ โกงมั้ยครับ ep.101 ] | DOM](http://i.ytimg.com/vi/bfsWe0j492k/mqdefault.jpg)
Thank you to everyone who made a purchase on eBay via our affiliate link at rossmanngroup.com/ebay for helping support this type of content. Your viewership is appreciated and as always, I hope you learned something!
We need more repair guys like you in the tech world. People that actually do the repair right instead of bubble gumming stuff together.
Daniel Graves I bubble gum on occasion, but keep it off youtube. ;)
I wouldn't say "shorted to ground", I'd suggest saying "pulled low". The line is pulled high through the 2k pull-up resistor unless it is pulled low.
Helpful Dawg!...... but ain't shows my bettery!
You have a very soothing voice.
Mr. Rossmann thanks for educating us..
I think you can go really cheap on oscilloscope probes ( around $60) and still get some decent probes for the money?
got an issue something like this where the MacBook has an X on the battery and won't charge it. But it will run on a battery that has power. Pin 16 on the U7000 chip reads 12v instead of 3-5v. Already changed the chip and Q7055 just in case, pin 4 on the Q7055 shows 12v just like pin 16 on u7000. Thanks in advance
i have a mac that the isight cable was broken so i have to solder it. can u show it on a video please? love ur videos
Is it worth buying a MacBook Pro if this is a known problem with it? Apparently it works if you plug it in to the mains...and I think the price is right
Hi bravo boy,please sir make a video where you explain the name of all compnent which located on motherbord for new user it will be better Thank you
Louis. Thanks for all your posts. i learned just enough to know when I'm being ripped off... magsafe light not showing, battery not charging but 2012 MBP boots and works fine on battery; shop recommendation 450 quid for a new (read refurbished) logic board with a 2011 CPU?!!!?. I saw your sysonewire posts on magsafe/SMC recognition (U7000) which make things much clearer.... I''ve got a request. Could you please post an idiots guide for a newbie to find a decent board repair shop? I mean, what questions should we be asking? In UK the shops all have sales guys who will tell you anything... is it fair to ask to meet engineers? I'm thinking a short list of 'telltale' questions like 'what microscope do you use?', 'show me a schematic'. How can I check the so called repair shop even has the basic kit to actually repair a board.... not just steal mine and resell it? Is there some kind of qualification (yeah I know all about Apple qualifications!) or kite-mark ,or ISO standard or something? I know that doesn't defend against part pirates, but it's better than nothing.
How you diagnose that resistor nıt in there? Or If a resistor broken how can I check it ?
Hi Louis, I have a problem with the battery charge on my MacBook Pro A1278. I have seen some of your videos but my problem I can not find a solution. The computer sometimes charges for minutes, passes the green LED light to orange but after a few seconds the light indicates the battery charge still OFF (No light). The computer works with the charger put and the battery is not discharged while this is, that is to say that it does not load but it does not discharge either... can you help me?
I am having the same issue with a mid 2010 MacBook pro. It is not detecting the battery. top right corner has a "x" with a battery symbol. The battery is working has been tested and it works. Will this repair work on the mid 2010?
thanks for very good information about pullup resistor , i'm facing same problem , i replaced resistance with the value of 2k, but on board when i check it's giving me value 235 ohm. and resistance side #1 3.4v and side #2 gives only 0.051v , and battery connector pin 4 gives me 3.4v, but only pin 6 gives me 0.051v, may it's smc bad or some an other part on board, help me out ......thanks
Thanks for the video,my 2011 macbook pro 13 is not charging the battery, the percentage of the battery stay the same if connected to power,the light is dimm green,i checked both resistors and they are fine,could it be the dc inboard ? or something else ?
thanks
My Macbook Air 2011 11" recognizes baterry but doesnt charge it. Also there is no magsafe light althought it is holding power from jack and turning on.
Your lab is nice!
rodrigo vazquez Thank you!
I have a question, I recently bought a new macbook pro battery, but i think it's bad, the system says "Replace Now" with cycle count 0
coconut battery says: Status: Poor, Discharging.
First, it was 46% then 8% then 7%
If my macbook pro logic board is fucked up, would it still detect how much energy exist in the battery?
Hello. My MBP mid 2012 doesn’t charge when its on , orange light goes off after 5 seconds, but only charges when i turn MBP off. Whats the fix?
Great video thank you
Hello I have a Macbook Air - A1245 that does not charge the battery or turn on the led of the source, which can be. Thank you.
than,... sir
hi i have macbook pro early 2011 only charger off or sleep and only work with 1 memory slow any help
Hi Ramon I'm in Mozambique whit a big problem can you help my
been watching your battery videos, maybe i missed it?, i finally gave in and bought a used 2011 13 inch..actually i cought a bug, i got another 13inch after..then old 17 core2duocrapola, which i do love but cannot upgrade past kittycat version, that said then another 17inch..OY VEY, ok problem of just one of these late2011 , once charged to 100% , it goes green on charger, meaning full and good ....but then without showing not charging, it is using the battery, how then do i know this?..it hard shuts of after a few hrs, and battery depleted..then very hard to get the charger n board to charge...i plug, unplug 10 plus times till it finally goes orange and will charge, back to 100%. other times i unplug it and it drops 30-70%, meaning its not charging or recognizing it needs a charge, or to stay on ACpower , instead of constantly cycling battery. can you suggest what it could be? oh, yes i have 3 different ac-dc chargers all mac, and same issue..therefore it is the MB i would guess. but since its a 2011, i guess its not worth repairing , cause i can buy a used one 1/2 price of repair, i would guess?. ps thanks for all the youtubing you do..being at 55y old , its good to see your teaching others that could be the next generation of smart logical and respectful people just like you. keep it up, thank you, you are one of the few of good men. [2 thumbs up]
Hi Louis, just a general question here. I have a bunch mint Acer netbooks of the same model.
Lately,one of the users discover his battery doesn't charge while plugged in(shown in the battery status). I couldn't check all the other units,so I replace its battery from a backup unit. It didn't solve the problem. Now showing 0%,plugged in, not charging. I check the battery voltage, they are low ard 9V(I assume still chargeable).
Am I safe to there's problem with the charging circuit?
Okay silly me, I didn't do the battery recalibration properly(just power off and unplugging battery). Apparently I need to uninstall MS acpi.
I'll report back if the calibration works.
hey louis i have macbookpro 13 2011 model and i also have same problem battery is not charging ... when i charge it keep on green but not red even there is 1 percent battery left ... now my mac is completely shut and won't turn on anymore ....so i want to know is that reparable ???? plzz let me know ... i went to apple store they just want me to get new macbookpro or new logic which is like too expensive .. plzzz suggest me ... and i from europ ..... thanks a lot in advance ....
hello, my macbook pro in late 2012 has a battery charging problem, the battery is not charging, the green light of the charger is still light, the charging pourcentagde is 0%, there charging symbol on the battery. I made the reset of the SCM problem is not resolved
it could be the DC inboard it cost 10 dollars on ebay ! or the smc
Hello Louis My MacBook to not charge, have 5 led blinks and randomly power off disconnect the battery connector but cant power on please same problume help what i can do Thanks
+apple ilyas think
Rigol FTW!!!!
my macbook recognizes the battery for some time then it doesn't anymore, so I get the x sign ( no battery available). After this the cursor freezes randomly, (not the computer). and the keyboard lights are not able to dim the light anymore.
SMC chip problem? i just installed a new battery, but i had the same problem with my last battery.
th-cam.com/video/6I2Rd2iVa64/w-d-xo.html
I was trying to pull off the battery adn accidentally touched the battery connector with my screw driver,.SOme smoke came out and the laptop got dead,.I took it to the mechanic and he showed me a blown IC,.He changed the IC and the set turned on but it is not charging the battery,..My set is lying at the mechanic shop since 7 months and he is still trying to figure out as to why the battery is not charging,...Can anyone where the problem cd lie,..so that I can ask the mechanic to look at the particular place and fix it,..??
Hi
Please Help!
I have a 820-3024 and I'm having problems making it recognise and charge the battery.
It's already had a new ISL and an SMC from a known working board, all resistors/caps are ok on and around the charge circuit including the pull-up resistors mentioned in the video, but still no luck!
I've gone over & over the schematic and can't seem to work this out.
When I plug the mag safe in, the light goes green for a few seconds, then Amber for 5 seconds and back to green.
It switches on and works fine and has the latest SMC firmware installed, but the battery has an X in it and only works when plugged in.
Any help would be appreciated.
Thanks
check your soldering on isl chip, had the same issue when swapped charger ic
bro where r u from? my mac wont charge my new battery, it turn on fine when is plug in...but if i unplug it it turn off!...and the light is alwas green from the charger and the battery icon has an X, what can i do? please help!!
+pablo guzman did you get your fix because mines does the same
same
i have a macbook that has no power by ac (ac adapter is good) or by battery.
pressing the on/off does nothing.
what can it be the problem?
also where can i buy parts since apple does not sell them?
do you where i can get a schematic of the macbook (older model that has two usb sockets on the left side and cd/dvd drive on the right side)?
angelisone Almost anything. Please watch channel. Schematics on Google.
+Louis Rossmann I really like your videos.......too bad many of them are just WAY too long.
+tickyul how long did it take you get out of high school?
you got an experienced person taking his time out to help us.
and you have to say something like that.
angelisone I like his videos......but 45 minutes, 60 minutes, an hour.....too long for me.
tickyul Then don't watch them, watch the other guy's videos where he teaches you motherboard repair in two minutes!
Its fuckin "SOLDER" RIGHT! (MALA FAKA!) And!...yes...I did see that! ;-)
+john porter saudah!
R5281 has no continuity.
+Sunny Sidhu Why should a 2 kohm resistor have continuity??
R5280 beeps with continuity test and 281 has no sound?
R5280 and R5281 should be 2kohms, no beeping!
Really OK let me measure resistance but 280 beeps
+Louis Rossmann I got 2.6 and 2.2 kohm.
youse must be brooklynese....don't youse know know the 'l' in solder is pronounced north of Niagara Falls. the Canuckians can't help themselves same-same as our friends from northern Europe oh, there's no 'h' in 'extraction' ;) good work sir, I mean y'all