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thanks for the info DUKE. i mean i always want to do that at the first place with the correct GPU, but just impossible to get. did you get any news about them?

Hi, this had been an old topic, but we are out of 216-0810005(6750), and have few 216-0810001 left.(6770) I had no issue sub-replace the 6750 with 6770 on all 1G VRAM boards. but having problem with boards with 512m vram. Im having two 820-2915 board with 512m sumsung VRAM. replaced the...

when it comes down to retina keyboards replacement, it's pretty much time wasting for me. have to correct those rivet after pulling out the keyboard one by one,some can't be taken out, so after keyboard installation I just glue those rivets together with the keyboard holes. what tool you guys...

2011 model is pretty easy to do. it's 0.45 balls..takes a minute or two to reball. I usually use a led flash light, the very bright one, shine the light and try to look right at the contact between the SMC and the soldering points on the board, and just move it until they kinda line up. It is...

and really look again and again under microcope,no liquid spilled

anything possible related to PCH ? since this is usb related? a strange hint is that, this only happens when the machine is fully loaded..just do internet browsing won't have that happened. ran some intense program like photoshop or testings software would likely to make that happen

the customer actually installed a new trackpad and keyboard already, the bottom part now had been replaced. same story. ASD shows nothing wrong

having a strange board here. 820-3662, perfect looking,no liquid spilled. Keyboard and touchpad work fine when OS boots up. but when the machine is handling multi tasking or being used almost fully. then the keyboard and touchpad just stop working,not the machine freezes,when you plug in the...

especially when you see"X" in the OS

Pulled off the battery indicator. otherwise 99% is the SMC. I've seen a lot, when u7000 got a burnt hole, the charging function would be fucked and SMC needs to replaced..

HAHA, it's my lucky day. replaced the PCH, power up and took a while to post. knowing it's the ME issue, flashed the bios with cleaned me file. all boots up and works now!! thanks for the advice guys!

removed r7640, diode mode 0 on its pin 1. damn.turn out to be one of the shits I never wanted to do. it's a dead PCH. it's SR17D,having one last piece here, will do the BGA replacement and update back

I poled around and compared with the good board, found one thing can be the hint. diode mode on pp3v3_s0, only gets 0.035 the good one is around 0.319 but when powers on, pp3v3_s0 is 3.3v still , doesn't look like pulling down. something shorted?

yes both , no video at all. not back light issue. Checked with a DC power supply,compare with good board. good board should jump from 0.01 to 1.4 AMP after boot up. this one only goes to 0.4A then stop, looks like some voltage is not coming out, but checked all big coil , they all exist...

FIXED! thanks a lot! turned out to be bad trace to the pad of the SMC, jumped a wire and all good now running without errors! Thanks a lot guys,appreciate it!

3.3 something

had a 820-3115 A1278 came in, clean board, no liquid spilled, had no power. traced down to the SMC,then replaced it machine powers on, boots, everything working. except sometimes it slows down, then ran ASD. got VC0C,VN0C,VP0R, ID0R,IC0R,IHDC,IM0C,IO0R,IPBR, all say the same thing : sensor...

did you figure out the solution for this? Im having a tough time here with this as well, trying to replace the 216-081005 with 216-0810001 , it's samsung vram with 512m. I tried hy 1g and samsung 1g replacement before, they all worked. but for this 512m one ,not sure how to do the strap...

yes it's there , i checked L7310 L7320 L7330 all have voltages

tried that already,but no luck