Later Models
(Android version 5.0 or above)
1. Tap Apps
2. Tap Settings
3. Tap Backup and reset
4. Tap Factory data reset
5. Tap Reset Device
6. Tap Erase Everything
Previous Models
(Android version 5.0 or below)
1. Tap Settings
2. Tap General & Backup and reset
3. Tap Factory data reset
4. Tap Reset device
5. Tap Delete all
Recovery Mode
If you screen is frozen or you could not turn on your phone, we advise you to perform a factory reset using the 'Recovery Mode'.
Note: Please note that performing this procedure will erase all customer data. Please perform data backup in advance to preserve your data in device.
1. Hold the Volume up + Home + Power keyat the same time.
2. Once the Android recovery mode appears, select: wipe data / factory reset with the volume keys
3. Enter with the power key
A factory reset just deletes all your user data locally on your phone. Data stored in the cloud and synchronized to other devices linked via an account and are not affected.
Even if you don't trust these information you can make sure no remote account is affected:
Before performing the factory reset from within Android settings activate the Air-plane mode. Now there is no chance that any account can communicate with a cloud server to tell the server that you are resetting your device.
And after the factory reset all user data has been deleted therefore all information about accounts and other saved data is gone, hence after the factory reset when you re-establish connection to the Internet there is no information available what accounts were present before you performed the factory reset. SO the device can tell nobody that you performed a factory reset.
From the perspective of the cloud services/accounts your device simply went offline and did not came back online.