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I have an iMac 2015 Serial number : DCPS207EH3GT, stuck on apple logo when starting, with half of the loading bar loaded.
I didn't open it yet, but it could be GPU issue.
I tried to boot form a second HDD, but it is the same issue.
I don't know the motherboard part number, how to check it before...
Hello,
I have this board stuck on 20V 0.150A then go to 0a
PPBUS G3H is 12.5v
P5VG3S is ok
P1v8G3S ok
P3V3G3S ok
PCH_RTC_RESET_ L ok
I can't enter DFU mode, not detected by the apple configurator, can't force with force DFU test point.
I don't know what to test next.
Any suggestions?
Thank you
Hello
I had a little of water damage, after fixing everything, the MacBook turned on without any problem, after login 2 min after it restarted and keep making chiming every 30 sec, fast rebooting, don't have time to show apple logo.
I did revive device via DFU mode, it passed but no change.
I...
Hello,
I got an a1707 with issues very similar to GPU issue of old MacBook pro 15" 2011 and 2012.
Can't load Mac Os, when is switch between internal to external GPU, MacBook restart.
Does anyone got a similar issue?
I have to replace the GPU ?
What diagnostic I need to do on the motherboard...
the fan i spinning
i get 20v 0.65A
screen dont turn on
i booted once, then nothig
CPU get hot
PPVCC_S0_CPU 1.8v
PPVCCSA_S0_CPU 1.025v
PPVCCIO_S0_CPU 0.9v
PPVCCEDRAM_S0_CPU 0v
what i have to verfiy after ?
hello i have 820-01958
get 20v 0.35ma
screen dont turn on
the fan is spinning on maximum speed
ppvcc_s0 1.8v
PPVCCIN_AUX_PCH 1.8v
PPVCCIN_AUX_PCH 1.8v
CPUVR_PGOOD 1.8v
PLT_RST_L 0v
The board was booting fine without an I/O board, but when i tried a water-damaged I/O board, the board stopped to...
Hello, I have A2289 when i restore i get error 4010, and when i try to revive i get error 75, the board was working before restore. But i changed the housing.
Hello, I have A2289 when i restore i get error 4010, and when i try to revive i get error 75, the board was working before restore. But i changed the housing.
Hello everyone, i got this A2159 macbook pro, and i was wondring if i can change the nand? Also is there any tools needed (to copy data in nand).
And same for ram is it possible to add ram?
thank you.
Hello,
I have 820-00165 water damage, I replaced SMC + cleaned ME region.
The device came back to life, every thing working good.
But no sound, the speaker logo isn't in gray and i can adjust the volume level, but no sound coming out.
I replaced the IO no change
thanks
Hello, this board was water damaged near to 3100
i replaced it and did some jumpers
USB C stuck on 5v and restart
PP5V_S4_X_USBC 5.0v
PP3V3_G3H 3.3
PP3V3_UPC_XA_LDO 3.3v
P3V3_TBT_X_SX_EN_R 3.3v
PP1V8_UPC_XA_LDOA 1.8v
PP1V1_UPC_XA_LDO_BMC 0v
there is some test point are gone because of water...
At first there was no power on and there was no voltage on PPVCORE_GPU i changed U8900 then now i have the PPVCORE_GPU 0.9V, the logic powers on but there is no image.
I have 820-01326 little bit water damaged but no image on screen.
Working on the external screen.
Water damage on LVDs cable, i did a Diode mode reading, can't find any short. It maybe the MUX but i don't have a donor board, it is the same of A1707 ?
Also Is the lcd the same of A1707 to test the...
I have 820-01326 little bit water damaged but no image on screen.
Working on the external screen.
Water damage on LVDs cable, i did a Diode mode reading, can't find any short. It maybe the MUX but i don't have a donor board, it is the same of A1707 ?
Also Is the lcd the same of A1707 to test...