How to fix charger?

@meowpurr sounds like you are having issue with the charging port "It was finicky". The charging port is soldered to the motherboard and requires some good tools and microsoldering skills. Check this video on the replacement Sometimes just reshaping the case of the port can work as done here

While you work on your Amazon Fire, take lots of pictures. Once you are done with it, take those pictures and create a guide for iFixit. That will help the next person that has the same problem as you do. It's easy and fun to create these guides. https://ifixit.com/Guide/new The iFixit community will appreciate this.

Repair is War on Entropy!