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Sorry about that. Just checked with red as ground and then black as ground, both give 0.103

Looks like the same diode mode reading of 0.103 on either side of F7000.

Sorry, F7000 is actually 0.927v

Hmm, F7000 is 0v now. Diode mode says 0.103 with red probe on ground

Forgot I had a recycled board with an ISL9240, used that for the swap and I now get 4.95v 0.01a. VDDA and VDDP of the new U7000 are 4.95v, P_IN and AUX_DET are the same.

Will change U7000. Is it safe to assume that most everything on Aliexpress doesn't have firmware and won't work? Otherwise I'll have to pick up a battery case as a donor.

I'm finding that L7560 has the same resistance as PPBUS on the side going to U7501. Does this mean U7501 is likely dead?

Checked those voltages, I get 3.78v on VDDA, 4.68v on VDDP, 4.8v on P_IN, and 1.21v on AUX_DET. Apologies if this is a stupid question, but I've never troubleshooted around this area of the board before, what lines should I check with diode mode and what sort of values am I looking for? I wish I...

Sorry, will make a note to check the other coils too next time and stick to the alcohol/toothbrush method. Exact resistance of PPBUS_G3H is 1.1ohms

I've got an 820-01041-07 on the bench that pulls 4.89v 35mA. Board is immaculate, no liquid anywhere and all indicators are still white. PPBUS is 3.74v, checked for CHGR_EN_MVR and it is missing. Is there anything else to check before suspecting the ISL9240?

Hi all, I have an 820-3662 that came in with the notorious crashing issue, swapped out the CPU MOSFETs with good quality FDMF6708's from Mouser and 5mins after the repair tested the board - it powered on w/green light and reached 700-900mA so that part was successful. This was using genuine 85w...

Hey all, curious if anyone knows where I can find a small clamp for doing things like SMC reballing. I've seen mention before of a store called Precision Rework, but I can't seem to track down anything under that name (perhaps they've since gone out of business), and I've tried 2 cheap ones off...

Replaced C5101, no change. Just changed U5110 from donor board, all voltages are the same and still no green light. I tried plugging in the board after removing the old U5110 but before putting the new one on and I did get green light.

Pin 5 is 0.487 and pin 8 is 0.575

There were a couple rusted probe points and some corrosion, used alcohol + toothbrush and worked a lot of it away and then got the following from U5110: 1) 3.4v 3) 3.4v 4) 0v 5) 0v 6) 3v 7) 3.3v 8) 0.2v

Did try known working board. I do have continuity between center pin and pin 5 of U7000. PPBUS_G3H is 12.28v and SMC_RESET_L is non-existent.

Hi all, I have an 820-3476 on the bench that came in with quite a bit of liquid damage. Took these photos before putting the board through an ultrasonic cleaner with sweepable frequency as per Louis's videos and dried it overnight. It's now pulling 7mA from the power supply. So far I've followed...

SMC changed and board is working! Thanks for the help!

Injected 1v, the shorted component pulled just over 2 amps. Felt around the board and found the SMC to be burning hot. Is reflowing worth a shot or should I be replacing the SMC at this point?

Diode mode at L7130 is 0.159 on either side, but at L7095 it's 0.001 on either side, so this means something is shorting this to ground right? U7090 Pin 1 - 0.58v Pin 2 - 0.18v Pin 3 - 1.18v Pin 4 - 0.32v Pin 6 - 17.74v Pin 8 - 17.74v