My apple XR keeps getting stuck in restart loop.

Hello,

Start here: If your iOS device restarts or displays the Apple logo or a spinning gear unexpectedly

Also you could have an aging battery. Check the health: iPhone Battery and Performance

Also check your local storage: How to check the storage on your iPhone, iPad, and iPod touch

Good luck.

i had to this problem with my daughters ipad... i had to connect it to a computer running itunes... can be a pc or mac. it must have the latest version of itunes. hold down the power button & volume key to restart the device while its connect to the computer... if you have an older iphone or ipad with the home button you will need to hold down the power, volume up, and home button all at the same time..... this will put your device into restore mode.... itunes will detect the device & present options to do a recovery or and complete restore.... try recovery mode first ... if not a full system restore should work then all you should have to do is restore from your icloud back up