A validated O/S update does not change the O/S version used by the device's factory-reset process. The available evidence also does not establish that a full backup restore can replace or preserve the factory-reset O/S image.
Confirmed Factory-Reset Behavior
You cannot update the factory-reset O/S version through the described O/S update process. Treat the operational O/S and the factory-reset O/S as separate recovery states: updating and validating the operational system does not make that version the new factory-reset baseline.
Backup and Restore Limitation
Do not assume that a full backup changes the factory-reset image or that restoring a backup after a factory reset automatically returns the device to the O/S version installed when the backup was created. That behavior is not confirmed by the evidence and must be validated for the specific device and backup mechanism before deployment.
Recovery Planning Procedure
- Record the validated operational O/S version before placing the device in service.
- Retain the approved O/S update package and the configuration backup as separate recovery artifacts.
- Document that a factory reset can return the device to its fixed factory-reset O/S rather than the validated operational version.
- Test the complete recovery workflow on representative equipment before relying on it at a customer site.
- After recovery, verify the active O/S version and restore the validated O/S separately when required.
FAQ
Can I update the O/S version used by factory reset?
No. The available evidence states that the factory-reset O/S version cannot be updated through the described process.
Does an O/S update change the factory-reset baseline?
No. Do not treat a validated operational O/S update as an update to the factory-reset image.
Will a full backup restore the O/S version that existed at backup time?
The evidence does not confirm that behavior. Validate the backup and restore workflow on the specific device, then verify the active O/S version after recovery.
