820-01521 missing pp1v1_upc_xb_ldo_bmc

[PCSWILTS]

Hi, I have a liquid damaged MBA - The mac works fine but does not charge (I've charged the battery in this mac using my own board and it boots without issue). I have replaced both CD3215 (C00) - charger reads 5V 0.24A constant - not cycling on both ports.

I have the following
PP3V3_UPC_XB_LDO
PP1V8_UPC_XB_LDOA
PP1V8_UPC_XB_LDOD
PP3v3_G3H_RTC
PPDCIN_G3H
HV_GATE1
HV_GATE2

pp1v1_upc_xb_ldo_bmc is not present

C3204 & C3104 are not shorted, I have continuity between pin 35 and the caps on both chips and both caps have diode readings of 0.498.


I don't see any obviously damaged components - any help would be great. TIA

 

[2informaticos]

Be aware, 1V1 LDO must appear on the powered port only.
Be sure U2890 has good solders/traces and all adjacent resistors good.
If all good, you can try reflashing U2890.