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I have found corrosion in C8111 R8111 and in C3280 and C3281 without short but I have still repaired the tracks because they did not have continuity
I do not have voltage in L7310/20 L7430 L3095 L7701
L7630=1v
L7560=3.28v
L7520=5.10v
L7130=8.5v
thanks
pins 17/18=04.0 (scale 200)
pins 27/28=40.4 (scale 200)
I have been able to observe some corrosion on the U3210 that my colleague overlooked. I have cleaned the area and installed the new R3211 because cleaning made it disappear but the problem has not improved.
Well, I can confirm that we have tested used original batteries and new compatible ones with the same result. The problem only appears if we connect the trackpad and keyboard. We have tested 2 topcases from other computers in good condition and it continues to happen. I can confirm that the...
If the percentage increases and it seems real, but now we have tested it with an old battery, 1014 cycles, recommended repair, it has charged up to 18% and has not turned off for a few minutes and is at 13%, a very curious case... the first test was with a new, unused battery and it did not...
It doesn't work, no liquid damage or burned components. led green change orange without battery, I try with other I/o board and flex.
In bypass mode we managed to turn on but without image internal o external monitor (it's only possible with keyboard if we try to bypass with smc pads we can't)...
yes, L7310=1.22v
The device works perfectly with MagSafe, it never turns off or restarts. But with a battery it barely stays on for a few seconds/minutes.
Hello, I received this device that does not turn on, very dirty fans, perhaps overheating...
I have checked the motherboard, it does not seem to be damaged.
no dfu mode
some voltages:
PPBUS_G3H=4.18v
3V3_G3H_RTC=0v
L9020=0v
L9030=0v
L9080=0v
mode diode to ground
PPBUS_G3H=386
L9020=433...
big coils
L9080= 407
L8102= 086
L7030= 447
L7690= 416
L7670= 421
L8410= 766
L6900= 364
L7702= 065 i have short to ground
L7420= same
L7410= same
L7220= same
L7210= same
hi, i have this board but don't turn on, I have tried to change the USB-C flex
i don't have any voltage...
F7700 is good
PPBUS_G3H= 0
3V3_G3H_RTC= 0
PP1V8_SLPS2R= 0
Hi guys, I have a problem with this logic board, it works with battery (25 cycles) when disconnecting the magsafe it takes a few minutes and the computer turns off. With magsafe it can work all the time.
In system information it recognizes the battery and the percentage goes up when it is...