iPhone Repair Term

Boot Loop

iPhone repeatedly restarts without ever completing startup

A boot loop is when an iPhone repeatedly restarts — showing the Apple logo — without ever completing startup and loading iOS. Caused by a failed update, corrupted firmware, or a hardware fault (usually the storage chip or logic board). Each failed boot attempt stresses the storage chip further, so act quickly rather than repeatedly attempting to restart.

Fix Sequence

Step 1

Hard Reset

Step 2

Recovery Mode

Step 3

DFU Mode

Step 4

Hardware Diagnosis

iPhone stuck in boot loop?

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