A1989 820-00850-A with no power.

[hgoncalves]

No, none port switch to 20V, all stays at 5V.

However, now the Mac powers on, and before it didn't even with just the battery.

Now, with battery it works fine.

 

[2informaticos]

What is PPBUS_G3H voltage with charger alone?

 

[hgoncalves]

PPBUS_G3H with only charger = 12.26V

PPBUS_G3H with battery and charger = 11.28V

 

[2informaticos]

Do you get 1V1_LDO on all ports now?

 

[hgoncalves]

Hi,

I still don't have PP1V1_UPC_TB_LDO_BMC. 0V

 

[2informaticos]

Do you get it on the other 3 ports?
If yes, then UB400 is suspect.

 

[hgoncalves]

Sorry. I don't get 1V1_LDO on any port

 

[2informaticos]

So you still have problems on USB-C areas.
You've got it one port before.
Use CD3215 chips tested on other board.