Recent content by yobad

I tried safemode, still the same issue. Don't boot on os, stuck on apple logo and loading bar, once I successfully booted macOs installation.

I tried to find what commande to entre safe mode Command+ R. It is not working. I need a wire keyboard ? Is it correct? Thanks

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...

To force DFU, I have short force DFU test point with 1.8v ?

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...

i found nothing at all

I can't enter DFU mode, but always I have error when I try revive or restore. The MacBook was filed with dust and nicotine vapeur It was to dirty inside. When I removed the motherboard and cleaned it works for once after the ultrasound cleaning it return back in the first state.

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...

DFU mode and when i try to revive it enters Recovery then i force it to DFU another time. There was no problem till i tried to restore, then it did this error before the restore, i turned on normally.

I did, it consume 19v and 0.052A, and it continue when the dfu cable Is connected

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.