Buy original Mobile phones from authentic agents or dealers to avoid malfunctioning. This will also provide you security and warranty.
To conduct a hard reset, or factory reset, Next to that, there are a number of processes to try:
1) From the home screen, press Menu - Backup and reset - Factory data reset - Reset mobile phone. It might call you for a password. Next to that, select Erase everything
If the mobile phone is completely unresponsive, even Next to that, a reboot, Next to that, try the following process.
2) When the mobile phone is turned off, press and hold the Volume Up and Volume Down keys together. Next to that, when holding these, press and release the Power key (keep holding the volume keys). The mobile phone should be turned on and a menu will be displayed. Press the Volume down key to navigate to the Recovery option. Press the Volume Up to select (if that doesn't function, use the Power key to select). A yellow triangle and an Android logo will be displayed. Press the Volume Down and Volume Up key together and a recovery menu should be displayed. Use the Volume keys to move to the Wipe data/Factory reset option and Next to that, press Power to select. Again, use the Volume Down key to select Yes and press the Power key again to select.
3) When the mobile phone is turned off, press and hold the Volume Down key. Next to that, that, when holding, press and release the Power key. A menu should be displayed. Use the Volume down key to go to Clear Storage. Use the Power key to select the option. Next to that, when call you to confirm, press Volume Up for Yes.
4) When the mobile phone is off, press and hold down Volume Up + Home + Power keys simultaneously. Next to that, release the keys when you see the Logo. Use the Volume Down key to go down and the Home or Power key to select. Select the Wipe data/Factory reset option. Next to that, Select Yes to erase all user data. Next to that, select to reboot the mobile phone.
5) A concluding process is to enter the code into your mobile phone's dialer: *2767*3855# This process will not provide you an option to reverse the process, so be absolutely cautious! This process will only function if you can boot into your mobile phone.
To conduct a hard reset, or factory reset, Next to that, there are a number of processes to try:
1) From the home screen, press Menu - Backup and reset - Factory data reset - Reset mobile phone. It might call you for a password. Next to that, select Erase everything
If the mobile phone is completely unresponsive, even Next to that, a reboot, Next to that, try the following process.
2) When the mobile phone is turned off, press and hold the Volume Up and Volume Down keys together. Next to that, when holding these, press and release the Power key (keep holding the volume keys). The mobile phone should be turned on and a menu will be displayed. Press the Volume down key to navigate to the Recovery option. Press the Volume Up to select (if that doesn't function, use the Power key to select). A yellow triangle and an Android logo will be displayed. Press the Volume Down and Volume Up key together and a recovery menu should be displayed. Use the Volume keys to move to the Wipe data/Factory reset option and Next to that, press Power to select. Again, use the Volume Down key to select Yes and press the Power key again to select.
3) When the mobile phone is turned off, press and hold the Volume Down key. Next to that, that, when holding, press and release the Power key. A menu should be displayed. Use the Volume down key to go to Clear Storage. Use the Power key to select the option. Next to that, when call you to confirm, press Volume Up for Yes.
4) When the mobile phone is off, press and hold down Volume Up + Home + Power keys simultaneously. Next to that, release the keys when you see the Logo. Use the Volume Down key to go down and the Home or Power key to select. Select the Wipe data/Factory reset option. Next to that, Select Yes to erase all user data. Next to that, select to reboot the mobile phone.
5) A concluding process is to enter the code into your mobile phone's dialer: *2767*3855# This process will not provide you an option to reverse the process, so be absolutely cautious! This process will only function if you can boot into your mobile phone.