Factory reset a Mueller phone

Instructions for factory resetting a Mueller provided Android device

Instructions

1. Factory reset the device:
   1. ~First it should be noted that step one requires at least 10% battery power, even when on a charger~
   2. Open the settings app
   3. Select "General Management"
   4. Select "Reset"
   5. Select "Factory data reset"
   6. Hit "Reset"
   7. Input the phone's password
   8. Hit "Delete All"
2. The reset process takes a few minutes. After the phone finishes resetting:
   1. Hit "Start"
   2. Agree to the "Terms And Conditions" and "Privacy Policy". The other two options should remain unchecked.
   3. The phone may take a few minutes to activate.
   4. Use mobile data instead of WiFi to verify that the phone still works properly.
   5. The phone might try to re-enroll in Knox. If it fails, hit "Retry". If this doesn't fail, skip this step.
   6. Hit "Accept"
   7. MDM might take a few minutes to enroll the phone and download apps.
3. Once the enrollment is completed we need to set a new password for the phone:
   1. Go to the Settings app
   2. Choose "Lock Screen"
   3. Choose "Screen lock type"
   4. Choose "Password"
   5. Skip the photo prompt if it comes up
   6. Set the password to 123a (make sure that the "a" is lowercase)
   7. Retype the password to confirm
   8. Hit "Done" at the bottom of the screen"
4. If MDM isn't working properly (infinite loading, no Phoenix downloaded, etc.):
   1. Update the phone until it is completely up to date. This can be done by going to the settings app > System Updates > Check for updates
   2. If you are still having an issue after fully updating the phone, please put in a tech support ticket at helpdesk.muellerreports.com

Note: These instructions might differ slightly for the A20 models