NIU Andy 3.5E2I

How to enter NIU Andy 3.5E2I Recovery Mode, Hard reset / Wipe and Remove forgotten unlock Pattern.

Recovery Mode NIU Andy 3.5E2I

1. Turn off the device
2. Press and hold Volume Up key and Power Key about 10 seconds
3. Release all key when you see NIU logo
4. Use Volume keys to select and Power key to confirm selection

Hard reset NIU Andy 3.5E2I using External Keys ( remove your forgotten pattern unlock )

1. In Recovery Mode, Use Volume keys to select wipe data / factory reset
2. Press Power key to confirm selection
3. Use Volume keys to select Yes — delete all user data
4. Press power key to confirm selection
5. Use Volume keys to select Reboot system now
6. Press Power key to confirm selection

Hard reset using Settings Menu

1. Turn on the device
2. Select Apps
3. Select Settings
4. Select Backup and reset
5. Select Factory data reset
6. Select Reset device
7. Select Erase Everything
8. Select Ok

Warning! If you perform a hard reset, make sure to back up important data. The data can not be recovered after perform a hard reset. If you forgot your unlock pattern, It will remove your forgotten pattern unlock.