Micro mCPX wont power on

[Beckmann Josh]

ok so my heli sat in on a roof thati couldnt get to due to 2 blizzards i got the heli back finlly it sat up there a month. i put a new battary on it the old one was shot form sitting int heelements. it powred up i could thro up and down everything looked ok i charged the battary to try and fly it and it wont even turn on now?

 

[Stambo]

First thing I would do is check the battery connections.
Maybe even hit them with a drop of WD40 or similar and give them a wriggle.

I assume you made sure it was totally dry before trying to fly again.

 

[Beckmann Josh]

ya i have tired that

 

[wolfman76]

Even if you let dry completely the 3 in 1 board its probably shot from water damage is an electronic circuit board admit kind puff water items but their friend. .. like you said it probably worked there once and then shorted out for to the board getting soaked with moisture it is same as when you drop for cell phones in sink or toilet I have done both lol. .. both i dried in rice for 24hours and both worked fine for about 6 months then started messing up sometimes takes less time. .. you can look on eBay for replacement boards at a decent price out you are lucky you can find some located in the us but most are probably going to arrive via the slow boat...