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I also tried another Trackpad. It runs still slow and CPU is most of the time at 100% with only safari open (not loading anything).

So I just tried a known good LIO board, and a known good display. Also I tried to disconnect the webcam and did another SMC reset, PRAM&NVRAM reset. Unforunately without any changes.

No, fan is spinnign normal. The macbook is not as slow as i normally know it from thermal sensor issues (lacking cursor for example). It just takes very long for example to open safari, load a page, install any application. I already tried a known good LIO flex, but i will try another board...

Hi, I'm working on a MBA 2015 A1466. The Board looks very clean, no signs of liquid damage. The MacBook turns on, I was able to install MacOS (even if it took about 4h), but it is running very low. I already did clean ME BIOS, replaced trackpad flex and tried another SSD, but without success...

But i dont get PP1V1_UPC_TA_LDO_BMC, when plugged in at the corresponding port.

But strangely I got 3.3V on PP3V3_UPC_TA_LDO and 1.8V on PP1V8_UPC_TA_LDOD

I did the measurements and found the fallowing differences between the LDOS of the bad one (UB300), compared to the others: PP1V8_UPC_TA_LDOD = 0.434 is lower than the others (=0.465) PP3V3_UPC_TA_LDO = 0.218 is much lower than the others (=0.402) Measuremnts on PP1V1_UPC_TA_LDO_BMC and...

Thank you for your reply. The measurements were made out of the shell, without battery. I did get the same results when i initially tested it, inside the case with battery. The charger is the original one :) I will check on the LDOs and post the results. Ok, sorry, I won't do it again ;-)

Hi there, currently I'm working on a MBP A1989. It was my testing-device for repairs and ironically it just stopped working :-D When I got it, 2 years ago, the logicboard was slightly bent on the top left corner (corner of the Touch-ID) but it worked well for two years. Now it stucks at 5V. Im...

SPI Bus resitors and traces seem to be fine.

No, unfortunately no history available. Looks like SMC was replaced or reflowed. PLT_RESET_L is stable 3.3V

After reflashing BIOS i got still no display or usb-activity...

After swapping U6100 i got a fanspin but no display and no USB activity. I will try to flash a new BIOS

Hi, i'm currently working on a MBA2017 820-00165. Here some Voltages of the rails: PPBUS_G3H: 8.6V PPVRTC_G3H: 3V PP3V42_G3H: 3.4V PP3V3_S5: 3.3V PP5V_S5: 5V PP3V3_SUS: 3.3V PM_DSW_PWRGD: 3.3V SMC_DELAYED_PWRGD: 0V PM_SLP_S5_L: 0V All rails are pulsing twice when i connect the magsafe...

Just checked all rails around the ripped off components - they seem all good. Sometimes the boeard starts beeping, but the beep is cut off because it is tuning off again.

I will check the traces around U1100 again. I checked the whole Board for more missing components but didn't found anything. I replaced all except the two RAM chips. Should I try to reflow these? Unfortunately I don't know anything about the history of this board. Maybe the knocked off...

Forgot to mention that CPU is getting voltage on fanspin. PPBUS_G3H is not pulsing.

Hi, i got a MABP 15" 2014 that came with some mechanical damage... looked like somebody scratched over the board and ripping out components to prevent it from beeing repaired. The ripped off components were: R1412, R1440, R1996, R1995, R1178, L7360, L8760, L8710, L3095, Q3080. Some scratches are...

Yes, u6200 is good. After replacing U6201 and noticing the Jack problem I replaced it.

Hey, i'm working on a Macbook Pro mid 2014 15" that came with no audio. Located a partial short on PP4V5_AUDIO_ANALOG, caused by U6201. After replacing U6201 I got sound again with speakers but when i connect headphones to the audio jack i just get some deep "clicking noises" but no sound at...