How to fix not-working buttons in ASUS T100T keyboard?

[omareg94]

I've accidentally used my Asus T100T's keyboard's arrow keys when my fingers were slightly wet. After a while, I've noticed that they stopped working, then all the buttons. I've uncovered the keyboard and till the anchoring metal part, then tried to restart. The keyboard started working again but with some buttons not working, which are near the arrow keys (Enter, rt-Shift, rt-Fn, \, del, insert), There is are buttons away from the arrow keys also stopped working (lt-ctrl, F3, F5, F7, F9, F11, Pause/Break). However, the arrow keys and other keys are still working.
How could I repair the not working buttons on my own?

 

[Yudhbir Singh]

You won't be able to fix it if you've shorted it out. I think you could get a new keyboard tray in Asus support.

 

[omareg94]

You won't be able to fix it if you've shorted it out. I think you could get a new keyboard tray in Asus support.

Unfortunately, Asus support is too expensive in my country. Is there an alternative cheap way to fix the keyboard on my own? Also, how could I make sure that something was shorted out and can't be fixed without replacement?