MBA 2015 issue after liquid: magsafe led not lighting, by connection MAB goes asleep

[Macsaver2017]

Hi Guys,

hope you can help me.

Statement:
MBA 2015 was pulled with liqiud. After it was cleaned and dried.

Issue:
Macbook starts ok, it looks like almost everything working fine except MagSafe.
Connecting MagSafe brings MBA asleep.

If I/O Board Flex Cable disconnected it goes not asleep but the fun messed up.

Can it be I/O Board or logic board issue?

Tnx for your help!!!
[doublepost=1510004275][/doublepost]Additional:

I did SMC reset -> nothing.
Hardware diagnostic shows no power connection, even if MagSafe plugged.

 

[Audit13]

Disconnect the battery, connect magsafe. If the MBA turns on by itself, see if you can use it and whether everything functions.

 

[Macsaver2017]

Disconnect the battery, connect magsafe. If the MBA turns on by itself, see if you can use it and whether everything functions.

Thank you. It is the same.

Disconnected the battery, plugged MagSafe -> MBA started, first greeting sound, then apple logo(but the LCD without backlight), after black screen (off maybe) and looks like the system working in background.

It looks like on same issue when battery connected. MBA works, but as soon MagSafe connected screen goes off(black) and mac working in background. Disconnected MagSafe and MBA goes awake and shows same window as before MagSafe was plluged.

Thank for all feedbacks in advance!!!!

 

[Audit13]

Not sure that there is anything left to try other than having a repair shop look at the unit. The Apple Store would suggest replacing the motherboard but there may be a simpler and cheaper solution.