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Thank you for your answer. Today I will reflash UB090 I will check the resistors later. Im using the scheme 820-00281 if someone has exactly 820-00928-04 ?

CC1/2 is the same everywhere around CD3215 (UB300 UB400 U3100 U3200) USBC_XB_CC1 diode-mode: 0,580 USBC_XB_CC2 diode-mode: 0,580 USBC_XA_CC1 diode-mode: 0,584 USBC_XA_CC2 diode-mode: 0,579 USBC_TB_CC1 diode-mode: 0,572 USBC_TB_CC2 diode-mode: 0,580 USBC_TA_CC1 diode-mode: 0,570 USBC_TA_CC2...

Yes

no, I didn't: PP1V1_UPC_TA_LDO_BMC: on CB404 Not restarting on bottom usb-c on the left side (UB400) Should i replace TBT ROM, UB090 for UB400 ??

I now. UB400 is the only one with no power when the charger is connected. I noticed that the voltage does not restart in one usb-c input but still no 1.1v

I swapped UB300 with UB400 and still no voltage on UB400. usb-c port is ok

I have replaced UB400 twice and still don't have 1.1 line. Any ideas ?

Thanks for the advice. Reballing UB400 didn't help. I measured the voltage on the pin CB404 (without capacitor). I'm ordering a new CD3215C.

Hello I am new to this forum. My name is Marcin and i work a electric repair shop in Poland. I am new to MacBook repairs and have lot of knowledge to complete. As for now i have a MacBook pro model A1707 820-00928-04 that wont start. I can see under my microscope that someone soldered the U3100...