820-3115 - no trackpa/keyboard

[techrepair]

hi ,
liquid damage repaired , new keyboard and new connector fitted , worked for few days and then lost the kb/trackpad . replaced u5701 and it started working but again no trackpad / kb after few hours kindly advise

 

[dukefawks]

Corroded R5701/2/4 or traces to/from them, so no 3V to U5701.