Lately, many iPhone 15, 16, and even 17 users have reported their phones randomly restarting or getting stuck in a boot loop after an update. I ran into this myself last week — my iPhone just wouldn’t stop rebooting!
After trying everything from hard resets to DFU mode, I finally figured out what works. If you’re facing the same issue, here’s what helped me (and what Apple experts also recommend):
Quick Fixes That Actually Work
Drain your battery completely, then recharge it to 100%. Sometimes background glitches clear out this way.
Remove your SIM card and insert it again after a few minutes. Network conflicts can cause restart loops.
Delete unused apps and free up space — low storage often triggers iOS instability.
Force restart your iPhone using the right button combo (Volume Up + Down + Power for newer models).
Update iOS if an update is available. Apple silently patches reboot issues in most new releases.
Advanced Fixes If It Still iPhone Keeps Restarting
Use iTunes or Finder to restore your iPhone — this reinstalls the OS and removes any corrupted files.
If that fails, enter Recovery or DFU Mode and restore from there. It’s the deepest software repair you can do at home.
If none of these work, it’s likely a hardware issue (battery or logic board). Head to Apple Support or an authorized repair center.
I shared all the steps and screenshots in a detailed post here.
Read the full guide: https://expert-advice.org/how-to/how-to-fix-iphone-keeps-restarting-or-boot-loop-iphone-15-16-17-ios-17-18-26/
It covers every method (basic to expert) to stop your iPhone 15/16/17 from restarting or being stuck in a boot loop — all in one place.
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