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Clean board, came in with short in pp2v5nand but also has 2 dead ports UB300 and UB400. Replaced UB300 and UB400 and UB700 and QB701 and also new UB090 reprogrammed with correct firmware.

Clean board, Mac turns on, shows charging icon and battery icon, but as soon as the charger is disconnected, the Mac turns off. U7000 replaced and same problem. J6951 diode readings are on par with known good board. New battery same problem.

Can the WiFi in this Macs be replaced and if so what other IC needs to be transfered from donor board or what IC needs to be re-programmed? Thanks!

I have a MBA M4 2025 with 256Gb Flash storage and I want to upgrade it to 1Tb or 2Tb, I have here another donor board with 1Tb NAND same model but it is 15" board is almost identical, when I swap the NAND chips and try to install OS via Apple Configurator I get restore error 4042, looking a the...

Clean board, tested same behavior on a different case with known good battery and same problem, tried restoring in DFU but as soon as the cable is plugged in MacBook restarts constantly, if power cable is unplugged Mac starts up fine, same thing happens with MagSafe, happens in all ports. Ports...

This board did boost to 20V a few times and started up in my bench alone a few times but not it is back to the original problem, ports only take 5V and PPBUS stays at 0V, clean board. R7020 5V in all pads U7000 replaced already from same board just in case Q7030 and Q7040 replaced and same.

Board came with a short on PP5V_S2SW_USBC23 both UG400 and UG800 were shorted, after replacing both of those from same donating board I now get 5V on all ports, but in the port where I replaced UG400 if I connect the power cable there PPBUS is 2V the other ports give me 12V PPBUS, I tried 2...

Clean board, when you try to use the keyboard to move the volume up or down the audio icons comes up with a forbidden sign. I already replaced the Audio IC U6300 and have tried with the audio jack connected and disconnected and same thing.

I'm trying to put a MacBook Air M4 in DFU mode using the onboard pads SWV011 (SOC_FORCE_DFU_DBG to PP1V25_S2) following the same steps here https://logi.wiki/index.php/DFU_Mode_Restore_(Macs)#How_to_put_Mac_into_the_DFU_mode but no luck, Im doing this with board alone on bench, using both power...

Board had a little bit of corrosion 3 ports restart at 5V every few seconds except U3100 that one stays at 5V I replaced U3100 3 times and same thing, also only on that port PP1V1_UPC_XA_LDO_BMC is 0V, PPBUS is 0V, I also replaced U7000 but same thing.

Clean board, USB-C port had some corrosion, I replaced it now I get 20V with board alone or with everything connected, however Mac wont charge, battery is recognized and percentage is shown, but no charge, tried new battery and same problem.

Client states that Mac had liquid damage but after inspecting the board and all other components all looks clean. Board alone stays at 20V and 0.200A but nothing happens With battery and trackpad connected I get 20V and around 1A but not USB activity or power. Wont enter DFU

Clean board, fan spins fast right before it reboots this happens after 2-5 minutes of it being turn on. Installed clean OS after T2 restore, same problem and it was very difficult to install OS since it will error out, only completed installation after several tries. Installed new NANDs and...

Board had some corrosion around the edges, I replaced all 4 CD3215 from donor and also replaced UB090 as well as U2800 with correct firmware, but one of the ports loops every 20 seconds, not sure where to start. All LDO present Also replaced the ISL9240

Board had some liquid damage around WiFi IC, that is now fixed but 3v3_S5 and 5v_S5 jump all over, PPBUS 13V board alone takes 20V and around 0.040A

First time I get a 820-02188 here, clean board, tested with different original charger and same thing. I dont even know where to start with this boards, but charger and board alone gives me no voltage anywhere, I then located what I think it is ppbus line and started there with 4V, 8V then 12V...

Board had very very little corrosion in one corner of UG400 I replaced that and still same, DFU restore results in error 21. PPBUS_AON - 12.0V PP3v8_AON - 3.8V PP5v_S2_MAIN - 5.2V PP3v3_S2 - 3.2V PP1V8_S2SW - 0V PP1V2_S2 - 1.2V PP1V2_AWAKE - comes up to 1.2V for a few seconds then drops to 0...

Clean board had both U2890 and UB090 bad, also short on U2800 as well as U3200 and U3100, total mess, came in with 5V, now it makes it to 20V but wont charge or restore. All Awake and SLPS2R signals present, following boot sequence it makes it all the way to PMU_COLD_RESET_L and missing voltages...

Clean board, makes it to 20V but not 5 seconds later goes back to 5V then repeats. Checked for shorts everywhere and found nothing, checked with thermal camera but there is nothing obvius. PPBUS makes it to 12.2V then drops.

Board had issues with U2890 and UB090 and was stuck in 20V, fixed that and now I get to 20V but no power and no detection in DFU. SSD power is missing. PMU seems to be working fine. SLPS2R and Awake signals ok but PP1V2_AWAKE_SOC_PLLSOC_F is 0.7V not sure on that one, diode read OK.