no its not hard, you may have to get the star driver for the faceplate though, and if you use an allen key (not recommended!!) be careful with the screws because if you round them its really painful. don’t be afraid to open it if the warranty is out. swap the battery and pop the connectors on and off on a couple of times… Carefully power it up while its open and see if its fixed.

if you have a volt meter you may want to test your power supply too

goodluck