820-00281-A not drawing 20v no ppbus_G3H

[Soji]

U3100 is getting warmer, drawing 5v
I replace it.
all the 4ports are drawing 5v, ammeter is restarting after 3 sec on all ports now
No PPBUS_G3H
PP3V3_G3H is present
PP1V8_UPC_XA_LDOS IS present
PP3V3_UPC_XA_LDO IS present.
have also replace u7000
Have checked all resistor around u7000

 

[2informaticos]

Check SMC_USBC_INT_L voltage level.

 

[Soji]

3.414v but not stable

 

[2informaticos]

Check for short on all big coils.

 

[Soji]

No short on the big coils

 

[Soji]

I reballed the cd3251 again u3100 and it worked. Thanks

 

[Soji]

The MB is not booting up, it’s drawing 20v, the current goes to 0.00 after 2 sec, the MB displays low battery, I tried to disconnect the battery from the motherboard, still shows the low battery sign.

 

[2informaticos]

Are you using original 87W charger?

 

[Soji]

It’s the charger. Thanks worked