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That's exactly what I did, I applied 1 volt and raised it to 5 volts and only one element barely heated up, the one in the photo (I don't know what kind of microcircuit it is). The 5V_G3S line consumes 0.17 A when applying 5.5 volts

the board starts at 20v\0.780a and then drops to 0.289a and freezes. when examining the board I found that the c6700 literally exploded! I checked PP5V_G3S=21 ohm (should be kilo-ohms), there is no short circuit! there is no circuit for this board, so I use 820-01041, which complicates the...

I have a suspicion about this coil! Help me find this coil! On which boards is it still present so that I can remove it for inspection!

Usually the 820-01700 board is loaded onto an external monitor lying on the table and connected to a 100W USB source! But this one gets hot quickly but does not display images! So I'm not sure that we are moving in the right direction dancing around the built-in display sensor!

It is not in the DFU! and is not included!

PPBUS_AON=12,32v 3V8_AON=3.79v CAP_PPSPMU_VLDO9=1.8V PMU_ONOFF_L=1.8V PP1V5_VLDOINT_MPMU=1.5V PP1V8_AON_MPMU=1.8V PP3V3_UPC0_LDO=not stable PP3V3_UPC1_LDO=not stable Please tell me which other lines to check?

pp3v3 lines are going crazy

does not load 5v/0.000-0.023-0.0125-0.055A not stable PPVBAT_AON_CHGR_R=12.35V pp3v3 lines are going crazy

I checked in three different cases, the behavior is identical. As I understand it, the system determines the display as the system loads the Apple logo and the loading line, but before turning on the video, the entire display with the backlight turns off. And the system displays a display...

I thought you were talking about this sensor.

ANGLE_SENSOR_MGL=0,137v (not stable) ANGLE_SENSOR_ND=1,8v PP1V8_SLPS2R=1.8v IPD_LID_OPEN=1.8v I have several displays and several MacBooks, I have rearranged the display sensors, this does not help! I have rearranged them in my test case in which all the boards work, but this board does not...

I replaced the U9850 but it didn't change the situation. I installed 4K video on two monitors and it works without problems. I waited for about 30 minutes and everything works stably! But as soon as I disconnect the external monitor, the built-in one works for about 30 seconds and the picture...

I replaced the U4802. This did not bring results. I noticed that the board without a battery consistently consumes 20V/2.2A. Maybe the CPU is bad?

when paired with an external display, it works not in safe mode but in normal mode! then the problem is somewhere with the definition of the built-in display! maybe the problem is in the u9850? what is responsible for starting the display line? a new graphic chip of the same model!

in safe mode the display works! (As with the previous GPU chip.) The built-in display works only if you connect an external monitor! Both work well! But if you connect an external monitor then the built-in one turns off after the Apple logo!

Do I need to do a DFU recovery after replacing the chip?

I removed everything and quickly wrote down the paste. I installed the board back into the MacBook but the behavior is the same as with the previous chip. The picture is on the built-in display only when an external monitor is connected. Without an external monitor, the Apple logo also loads and...

LID_OPEN_SMC_IN=1.8v DFR_LID_OPEN_L=0v IPD_LID_OPEN_R=1.78v IPD_LID_OPEN=1.8v How are the hall sensors marked?

can we assume that the lead sensors are working if the MacBook starts the fans when the lid is opened?

did not turn on and the display was cracked and needed replacing. I installed my working test display but nothing worked. I checked if it was in the DFU since the behavior of the ports was the same and it was in the DFU. I tried to restore it but different errors occurred. I transferred the...