Op
You crashed it, so could be many things wrong.
As suggested by an other poster have a look round utube
plenty of tutorials on stuff, just find your model and watch a few.
Here is one on a Flysky transmitter.
https://www.youtube.com/watch?v=8a2Op7Zbqm8
Also mentioned by an other poster, remove props before working on it.
Also watch some utube stuff on battery charging, battery fires and storage of batteries.
It does sound like you need to bring your understanding of RC up a little bit.
Good luck.