Switch OLED Fuel Gauge, BQ and USB PD Error in Hekate

Hey people.

I have a OLED Switch here I am losing my mind a bit. When I got it, the console had 5V on the USB Tester, Quickly saw that the OLED driver was dead also the M92 was gone, so I replaced both.

Now the console at least had some signs of life but wouldnt boot. Suck at 0.0445A. So I put a mod chip on it and I could get it to boot into Hekate. Now in hekate, I saw that the Battery Info Tab was full of errors. Fuel Gauge, BQ and USB PD with Errors. So I changed the Fuel Gauge and BQ also but nothing changed the behaviour.

What is up here? I really cant get my head wraped around it. It has something to do with the I2C line right? Because there seems no communication to the componants? Anyone has a clue what to check?