Contribution d'origine par : Abdul Galib ,
Try a factory reset.. if you don't care about ur data in the phone. Instructions 1. Power off the device. If unable to power off, remove wait som seconds and reinsert the battery. 2. Hold the Volume Down Key + Power key for 15 seconds and then release. 3. Press the Volume down key 3 times to select ''Delete all user data'' by pressing the power key. 4. Scroll down to and select Yes - delete all user data. use power key to comfirm 5. The device will reboot and display the recovery screen. 6. Select Reboot system to restart the phone '''''Good luck with that'''''