I’ve got old model HAC-CPU-01 Switch. There were some minor liquid damage around 5 areas. After cleaning them, I do not see any major damage. However the switch won’t boot (black screen). If I plug low voltage battery the charging power is 0.15A (normal).
The eMMC initially gave “failed to init” but after some cleaning/soldering work I got the backup. Hekate runs fine and I don’t see any problems in the battery info
There was a small crack in MAX77621 (CPU buck). I don’t know what has caused this… The switch hadn’t been reworked before. This could be the culprit. I don’t however have this part to replace. One of the lines maybe give strange value (2.1V instead of 3.8V)
What do you guys think?
