Tip: don't throw it against the wall
How to Reset Fire Stick Remote and Fix Most Issues
Are you unable to use apps or make changes on your Fire TV or Fire TV Stick because the remote is unresponsive? Are some of the buttons on your Fire TV remote no longer working? This is likely because the remote cannot connect to the Fire TV.
If the issue persists for too long, you should reset the Fire TV remote. The following section provides detailed instructions on how to factory reset your Fire TV remote.
The steps to reset the remote on a Fire TV or Fire TV Stick vary depending on the model or edition of the streaming device. In this section, we'll show you how to reset the remote on all Fire TV editions.