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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...
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...
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.