820-01521 water damaged

yobad

Member
Hello,
I have 820-01521 water damaged, one USB-C port have 5v 0.3a-0.5a
The other one 5v0 0a
How i could start the diagnostic in this case.
Thanks for your help.
 

yobad

Member
I Found PP1V8_SLPS2R Shorted with 6.7 when i tried to connect the charger voltage in this line was unstable between 0 and max value was 0.6 V also PP1V1_SLPDDR_SOC was shorted too was 0.3, can it be the T2 chip? and is there anyway i can fix this issue?
 

2informaticos

Administrator
Staff member
"I Found PP1V8_SLPS2R Shorted with 6.7"
What means 6.7?
Post exact ohm value to ground, not diode mode.
 

2informaticos

Administrator
Staff member
These are really bad values.
You can try to inject 1V to PP1v1_SLPDDR_SOC .
If T2 heats, the board is good for scrap...
 
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