Temporary archive edition
How to make hard reset?
A reset may erase data and settings. Back up important data and check the manufacturer’s requirements first.
This text was machine translated on the old site.
Reset to factory settings for Lumia 640 is performed as standard for the series Lumia:
- Turn off the phone
- Hold down the "power"
- After activation of the vibration, release the button "start" and quickly press and hold "Volume -" until the appearance of an exclamation mark
- Click "Volume +" "Volume -" , "Enabling" and then "Volume -"
The phone will reboot and on the screen you will see the gears, indicating a well-executed combination. After loading the phone settings will be reset to the factory default and will erase all user information.
The old database did not record a source. Check the manufacturer’s manual.