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Vodafone Smart TAB 4 hard reset using buttons

When you are unable to power on your tablet, there is a way to perform a factory data reset by using hardware keys.

1. Turn off your phone.
Press the Volume up key and the power key at same time until the screen lights up.
2. Press Volume UP + POWER ON the phone for 10 seconds.
(If that does not work then try the )
Press and hold for 10 seconds the power and the Volume DOWN key.
4. If the Recovery menu comes UP. --->
5. Select Factory reset / wipe data using Volume and power to select.
6. Repeate it with yes --- delete all data.
7. After hard reset is done select reboot system now.

All of your data will be lost! Back up your data first!

vodafone smart tab 4 hard reset
Resetting Your Smart tab4 Vodafone Smart tab IV reset

Restoring Factory Data Vodafone
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 Backup & Reset > Factory data reset.
2. When prompted, touch Reset tablet, and then touch Erase everything. The TAB 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 Backup & Reset.
2. Select the Back up my data check box.

General advice: Before you buy a new cell phone or new tablet, please try the following procedure to repair your device in a software way. First charge your battery, backup your important data if possible and in most cases take out SIM and SD card before doing 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.! Please also note, that a hard reset operation will not unlock your mobile phone's SIM lock or network lock, but it will remove the unlock pattern, remove the user password or PIN password (NOT the SIM card's 4 digit PIN code). Also note that the firmware version will not be affected in any way, it will not be downgraded, it will remain the same you are using and if you have rooted your device, root privileges remain also unaffected.