(Reading time: 1 minute)
ZTE Speed hard reset: From the Home screen, press the Menu Key and touch Settings, then....

(Reading time: 1 minute)
ZTE Grand Xmax hard reset: From the Home screen, press the Menu Key and touch Settings, then....

(Reading time: 1 minute)
ZTE Zmax hard reset: From the Home screen, press the Menu Key and touch Settings, then....

(Reading time: 1 - 2 minutes)
ZTE Kis 3 V790 hard reset: Turn off the phone. Press and hold volume up +....

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ZTE V5 hard reset: From the Home screen, press the Menu Key and touch Settings, then....

(Reading time: 3 - 5 minutes)
ZTE Join me backup and restore app: how to install and use ZTE PC suite

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ZTE Overture hard reset: From the Home screen, press the Menu Key and touch Settings, then....

(Reading time: 1 - 2 minutes)
ZTE Grand S Flex hard reset: From the Home screen, Touch HOME > APPS > Settings...

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ZTE Open hard reset: Turn off your ZTE Open firefox mobile. Press and hold the Volume UP key and the...

(Reading time: 1 minute)
ZTE Illustra hard reset: From the Home screen, press the Menu Key and touch Settings, then....

(Reading time: 1 - 2 minutes)
ZTE Sprint Vital hard reset: Backup and Reset...

(Reading time: 1 minute)
ZTE N880E hard reset: From the Home screen, press the Menu Key...

(Reading time: 1 minute)
ZTE V889M hard reset:

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ZTE Warp Sequent hard reset: From the Home screen, press the Menu Key and touch Settings, then....

(Reading time: 1 minute)
ZTE Grand S hard reset: From the Home screen, Touch HOME > APPS > Settings...

(Reading time: 1 - 2 minutes)
ZTE Avid 4G hard reset: Backup and Reset...

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.

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