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Traces on the TBT ROM seems fine. LDO's are present apart than PP1V1_UPC_XA/B_LDO_BMC - 0V - Not sure if this needs to be on at this stage.

Seems like it has been cleaned by another company. Slight oxidation residue around U8200 and R3091. Measurements around CD32s seems fine. No short anywhere. T2 seems getting slightly warm. Tried DFU both with keyboard comb and FORCE_DFU pads to 1.8 PP1V8_SLP2SR_PMUVDDGPIO which is nearby. i...

Reballed UR500. It didn't had much underneath. Only corrosion in the area is on CR504, PP3V8_CODEC_VP side was almost gone I am assuming pins 21, 14, 7, 6 were soaked at some point. It is still same. When I press volume up, it shows volume UP OSD then, on second press shows forbidden volume...

Replaced UR630 as balls underneath were completely corroded. Now Audio gets recognised for a second and disappears in the Audio Output secttings. Bluetooth audio works. Its strange, when i press the volume up/down it moves the volume bar now (before would just shows a forbidden audio sign) but...

Can you try to boot external and try to install? Also perhaps to eliminate wifi, try usbc lan adapter if you have one laying around?

Is that when you try to reinstall the OS? What OS is it?

Thinkpad X13 Gen 3 Not Charging via Thunderbolt after an update. Ran out of battery and stays at 5V Fan spins for a second when it switches on, but then the power button blinks 2 times and goes off. Dont have a fully charged battery to charge and flash over Windows. Although the TBT Utility...

I can confirm, that this model doesn't turn on without a battery. 20V 0.01A when the battery is not connected. I've replaced the battery and all is good. Thank you for your help @2informaticos

Are you aware if this model needs a battery to turn on? I managed to FORCE_DFU and revived the system. While it is connected to power I managed to load the system, it shows the battery needs service but charging. Pulling 2A charging current. But the minute I disconnect the charger it shuts down...

ok, so flashed the backup and there is some progress. The light comes on 1 second and goes off, then comes back on again it stays on for about 5 seconds and shuts off. Compared to less than a sec before. No keyboard or monitor activity though. Tried the USB method to recover but is not...

No shorts there either. Yes, same behaviour and current consumption on all ports. 0.9, 1.1 and 2.5 are present on SSD lines CPU_AWAKE are around 10Ohms - 0.5V P0V8SLPDDR are at 35Ohm range - 0.8V The remaining are over 100Ohms. Al coils around U7800 provide voltage apart than PPVVPRIMCORE...

Replaced U3100, quite of a corrosion around. No shorts around anywhere. Attempted DFU, but no luck forcing it into. Sometimes it's stuck at 5V 0.3 with T2 getting hot only other times goes to 20V but stuck at 0.01A still with T2 having some heat signature

Not for this model. Any suggestions where else to look? Happy with paid sites as well This site has 2 dumps, can we rebuild based on them? - https://winraid.level1techs.com/t/request-nuc8i7hvk-bios-fix/38143/7

Tested with spare touchbar, no light or touch response. Tried SMC reset. What else I can test?

I uploaded both backups, seems like one got lost. Here is the SYS_SPI one Ah cant upload 5MB. That explains it - Here is the onedrive link - https://1drv.ms/f/s!AqUpFIbofx3Hl-odaaP1trHXA1jQNA?e=YSVYgm

It just blinks and switches off. I can't reach stable on state.

It's not Mac-related but I am out of ideas and don't know where to turn to. Seems like we are dealing with a case of a corrupted BIOS after Intel Driver software attempted to flash the bios (haven't seen that before). The customer reported seeing a BIOS message while the screen was flickering...

Thanks, found the loose connection

End up being a faulty screen. It's so annoying that we cannot even test them over HDMi anymore easily. :cautious:

2013 Slow Mac Mini Repair - SSD Upgrade - https://it-solve.au/repair-cases/2013-slow-mac-mini-repair-ssd-upgrade Slow 2013 Mac Mini Repair with a failing Hard Drive, causing the system to be unbearably laggy and unresponsive