Factory Reset vs iPhone System Recovery: Which Step Comes First?
A factory reset is a last-resort action, not the first response to an iPhone problem. It removes the device's information and settings. Start with the least destructive step that matches the symptom, and make a current backup before any erase or restore.
Start with the specific problem
For an update that will not install, check compatibility, storage, power, and the network connection. Apple also documents deleting a downloaded update and trying again. When wireless updating remains unavailable, use Finder on a current Mac or Apple Devices/iTunes on Windows to update the iPhone.
When an erase makes sense
Use Erase All Content and Settings when you intend to remove the device's information, such as before giving it away, or when an Apple recovery process specifically requires it. An erase is not a reversible diagnostic check.
When computer recovery is appropriate
A computer recovery path is an escalation for a device that cannot complete the normal update process. Read the available option carefully: Update and Restore are different actions. Choose Update when it is offered for software recovery; choose Restore only after confirming that you have a usable backup or accept the recovery consequences.
Try a software-repair path before erasing
If you want to try a software-repair path before erasing the iPhone, Dr.Fone - System Repair provides a guided desktop system-repair workflow. This is a separate option from Erase All Content and Settings or the Restore path.
Note:
Verify that a current iCloud or computer backup has finished before erasing or restoring an iPhone.


