How much would it cost to fix a boot loop?
How much would it cost for Apple to fix a bootloop
[Re-Titled by Moderator]
Try things in these links:
If your [iOS 13 or higher] iPhone is stuck on the Apple logo - https://support.apple.com/HT210616
If your iOS or iPadOS device restarts or displays the Apple logo or a spinning gear unexpectedly, click here --> https://support.apple.com/HT203899
If your iPhone, iPad, or iPod touch won't turn on or is frozen - https://support.apple.com/HT201412
If they do not work then follow the advice at the end of the documents about contacting Apple.