Macbook A2338 820-02773 Backlight Issue

[Instafixx]

Device was water damaged. PP3v_s2 was shorted. Bad caps near the wifi ic. Removed and issue resolved. Now the device is having intermittent backlight issue.
When no backlight PPVOUT_LCDBKLT is 50V
When Yes backlight PPVOUT_LCDBKLT is 43V

It is random but I found that disconnecting and reconnecting the display connector brings back the backlight whenever it goes away.

 

[2informaticos]

You may have bad contacts on video connector.
50V points to open line to the LED strips.

 

[Instafixx]

Video connector was water damaged but was cleaned thoroughly . Should I change the small edp flex or the connector the lcd board ?

 

[2informaticos]

Try known good LCD assembly and video flex.

 

[Instafixx]

Removed the EDP flex. there is green at JP600. I ll get back

 

[Instafixx]

Replaced EDP flex. So far it's working fine. Will get back if any issue comes.