Before you buy a new cell phone or new tablet, please try the following procedure to repair your device. First charge your battery, backup your important data if possible and in most cases take out SIM and SD card before factory reset. It is impossible to recover your data after doing a hard reset, so online backup is always important. For all of your data, a backup should be done on an external device, hard drive, raid system or media. With or without insurance, if your cell phone lost, damaged or stolen at least your invaluable data is backed up in a safe place. If you are about to sell your phone and you want to wipe your personal data, or if your phone affected with virus you have to do a hard reset. In some cases, you can delete the forgotten password or lock pattern from your device as well. All information is for devices with stock based ROMs. If you are using rooted device, always back up your EFS folder first, containing your IMEI info, etc.!
Vodafone 858 Smart hard reset using buttonsPress and hold VOLUME UP+ POWER ON Vodafone 858 Smart to get into recovery menu. Select Factory reset with Volume down button. Confirm with power key. All of your data will be lost! Back up your data first!
Resetting Your Mobile Phone using menu
Restoring Factory Data
If you reset your phone to the settings that were configured at the factory, all of your personal data stored on the phone, including information about your Google Account, any other accounts, your system and application settings, and any applications you have downloaded will be erased. Resetting
the phone does not erase any system software updates you have downloaded or any files on your microSD card, such as music clips or photos.
1. On the Settings screen, touch Privacy > Factory data reset.
2. When prompted, touch Reset phone, and then touch Erase everything. The mobile phone resets
the settings to the original factory settings, and then restarts.
Backing Up My Data
You can use your Google account to back up your mobile phone’s settings to Google servers. If you replace your mobile phone, the settings you have backed up will be transferred to the new mobile phone the first time you sign in to your Google account.
1. On the Settings screen, touch Privacy.
2. Select the Back up my data check box.
Vodafone 858 Smart bootloader modePress and hold END CALL + VOLUME DOWN+ POWER ON Vodafone 858 Smart to get into bootloader mode
If it doesn't work try End + Vol UP + Power on.