Macbook Air (13", 2017) - 820-00165-A - Freezing after login.

ronaldo

Member
Hi. Need help with this Macbook air please.
It had liquid damaged around U1950. So I had to replace U1950, C1950, and a few resister around R1963. After replace and U.S cleaning the board. It back to life.
Worked for a week and than died again, but completely as it still turn on and login to the system. Sometimes stay 1 hours working before freeze and restart.
Aslo I notice that it won't turn on just on charger. It needs the battery connected to turn on, but it is charging.
 

ronaldo

Member
BAT AND CHARGER CONNECTED
PPBUS_G3H - 8.58V
PPVBAT_G3H_CHGR_RED - 8.59V

Only BAT CONNECTED
PPBUS_G3H - 8.34V
PPVBAT_G3H_CHGR_RED - 8.35V
 

2informaticos

Administrator
Staff member
For the kernel panic, try another SSD installation.
You can also test with USB macOS.

With only charger connected, check PM_BATLOW_L level.
3V3_S5/SUS present?
Be sure to use original Magsafe 2 charger.
 

ronaldo

Member
I've tried another SSD and same.
Will try external ssd system tomorrow and post all other questions you've asked.
 

ronaldo

Member
I was using MagSafe 1 with adapter and no voltage on PM_BATLOW_L. After use original MagSafe 2 it started to get 3.30V

PP3V3_S5/SUS is present
PM_BATLOW_L - 3.30V with no battery

I gonna run test again over an External SSD system.
 
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