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Hey duke,are you sure? board number 820-4924, they really don't power up when it disconnect the batteries, every machine I saw here. must connect then it will power up.it's 2015 model

having lot of a1502 liquid spilled machines every month, 2015 models. as we all know,without a good battery, the board won't power on for this 2015 model. questions is where do you guys this 2015 a1502 models battery?? ebay is selling around 80, quite expensive,not the biggest issue,thing is...

shit ,every time for these a1502 boards man. the lowest success rate model ever for me

Having a a1502 2015 model,820-4924. got liquid spilled on q7310, replaced. check ppbus_s5_HS_COMPUTING,shorted to ground. found that q7310 is bad, replaced, q7310 and q7311. Everything looks ok, then connected to charger. ppbus_G3h normal around 12. ppbus_s5_HS_computing is present and close...

got you, I think most likely has something to do with the temp,I usually just solder the new chipset on directly without reballing with leaded balls. must be the temp was too high and affect the VRAM.i will try with reballing thanks

really? I bought like 30 from them, usually like 85% would work , 15% will either return or have same distortion after replacement. so you get them from SEE and all GPU replacements didn't come back?

As we know the extended warranty for the 2011 GPU issue will end soon. I can imagine a lot of machines will need the GPU replacement service from us soon. not a big deal doing the BGA for this model since we did a lot already, but the real headache is the chipset... well I know what you guys...

hi Guys, having an A1466,customer forgot what password he put for the partition. I have no problem dealing with those EFI ,icloud password, but this is storaged in the SSD, the partition is locked, tried couple command but didn't work out. any clues please? thank you

8.sth, i had seen many of this model , so i know it's normal

hi, working on a liquid spilled 820-00165. coffee spilled on board, minor spilled on the clock circuit,SMC, bios. cleaned the stuffs and replaced all nasty stuffs.re-flowed SMC. ultra-sonic cleaned originally no green light, now green light back on. 3v42 is good, ppbus g3h around 8g good...

problem solved,please close this.thanks!

having a 820-2662. minor spilled on U7501, specifically, just around c7524 c7564 so i replaced those and u7501 as well. U7501 PIN2 0 PIN23 12.54 PIN29 close to 5 pin 22 13 close to 2 pin 12 smc _en_pm g2 3.3v pin 4 pin 21 close to 3.3 everything looks good,but no pp3v3 s5 output , any...

I know I know, you guys would say "come on man give up on this 10 years old shit" but when this is a 2.6ghz board and customer is willing to pay 200 for it, I can't stop my greed,lol. anyway, the problem is that the board can't boot into the OS. thought it's the common NVVIDIA chipset...

Hi guys, working on an a1278 820-3115 board, it got liquid spilled before, around SMC area, no power at all originally. fixed the circuits then it can run with charger. but once battery inserted,it can't power on. check the bat_low signal was not present, then replaced the SMC, status changed...

um..where do I get the NEW ones?I mean the real new ones....

Lol, I do doubt the ram chips, but there are just too many to reball and replace. damn I will try ,thanks DUKE

hi guys, Im working on a 820-3662 board, it's experiencing intermittent shut down while the laptop is being used. sometimes the graphics will get pixelated before that. I ran the ASD and it says reference code PPM002"there may be an issue with a memory module. additional reference code:ppm003...

I mean,should I really spend time on this thing, it's getting busy here lately and just wondering if that's a must to finish some of the repairs

thanks guys, what typical cases/repair projects will make you guys would pull that thing out to use lol

thanks anyway man, appreciate your help as always:)