Phone "System Update" Failed (Error Code)
4.5
The update starts, but then shows an error message and rolls back.
Symptoms
- Update failed
- Error code
- System rollback
Possible Causes
- Insufficient storage
- Corrupt download
- Rooted/Modified system
Step-by-Step Fix
1
Free Up Space
Ensure you have at least 5-10GB of free space for the update to unpack.
2
Clear Update Cache
On Android, clear cache for "Google Play Services" and "System Update".
3
Update via Computer
Use iTunes/Finder (iOS) or Smart Switch (Samsung) to update via cable.
When to See a Technician
If your phone is "Rooted" or has a custom recovery, official OTA updates will always fail.
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