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Can someone please post a working u2890 rom. I don't have a donor to swap, so i just want to reprogram the rom and see if it fixes my issue. on usb charges and upvolts to 20v other stays at 5v.

both are working? just curious whats the difference?

Couple of corded capacitors right next to u9850. I want to replace u9850 as well to be on the safe side but when i go to digikey there are two different TPS62180. can someone help me choose the correct one? thanks!

yes always working and showing up when headphones connected. can i post a video link so you can see?

replaced headphone jack. same issue

i connected board to another mac with apple configurator. nothing popped up. i also tried putting board back in housing and followed the dfu process and nothing popped up.

History: laptop came in heavily water damaged. ssd got shorted out so i replaced the board about 6 months ago. this replacement board lasted 6 months and came back no power. 820-01700 i get 20v and drawing .45-.117amps then resets. i checked ppbus - 12.6v

okay i ordered the audio jack board. will let you know after it arrives

board is clean. customer came in with this problem The audio codec is still recognized in system report even when no sound. i never lose sound in headphones and is detected audio board? i thought everything is on the board on this model? do you mean headphone jack cable (not sure if the audio...

so this laptop has sound issues. i don't know how to proceed with this so would appreciate some insight. the laptop always chimes, always get sound on headphones and mic is always working. i get sound for around 15seconds to 2 min of sound on speakers on a fresh startup. after that no...

I have a short on ppbus. if i remove r5400 would it be safe to inject voltage since i removed ppbus_g3h_cpu from the equation?

i've always had 3v3_sus (see first post) pp5v_s4rs3 - missing pm_slp_s4_l - missing PM_SLP_SUS_L - 3.3v

S5_PWRGD - 3.4v SMC_S5_PWRGD_VIN - 3.4 I remeasured PM_DSW_PWRGD and now it says 3.4 (weird) PM_SLP_S4_L pules when i triggered smc_onoff_l do you think its smc?

came in fresh, no liquid damage very clean. no fan spin ppbus - 8.6v pp5v0_s5 - 5v pp3v3_s5 - 5v pp3v3_sus - 3.3v pp5v_s4rs3 - missing pm_slp_s4_l - missing pm_batlow_l -3.3v PCH_DSWVRMEN - 3.23v PM_DSW_PWRGD - 1.036v <--- is this the problem line? SMC_ADAPTER_EN - 3.4v PPVRTC_G3H - 3.3v...

What exact voltage did you inject and which was the current indication? i send 2v 1amp What is the exact ohm resistance on PPBUS_G3H (to ground)? .9 ohms ive noticed shorts on the following lines, ppbus_g3h_ssd0 (removed u9080) ppvin_g3h_p3v3g3h (removed r5440 and short went away on that line)...

Board came in for no power. drawing only 5v 0 amps. i checked all the coils and large caps and found a short on ppbus_g3h. I took off f7000 and injected voltage but nothing is getting hot. (checked with flir). any suggestions on how to find the short?

already went, they were just gonna wipe the device. as i said, data is most important. doesn't care about the laptop working just the data. is it possible to remove from account on icloud then take off efi, clear it and put it back like older laptop? i wasn't sure thats why i'm asking.

yes serial number matches the icloud info. also drivers license matches user id on mac

When trying to boot into Target Disk Mode it asks for the password which I can't get past since his password doesn't work.

got a macbook that customer does not remember the 6 digit iclould lock code he put on his laptop. data is very important at this point. i can hit "remove from account" which will turn find my mac off to do a reset but as i said data is super important. what are my options here if any?