Solved: How to hard reset Sendo X: Press and hold the 5 key then...

Find out how to hard reset Sendo Z100

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Find out how to hard reset Sendo P600

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Find out how to hard reset Sendo S600

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Find out how to hard reset Sendo K1

Find out how to hard reset Sendo M550

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Find out how to hard reset Sendo M570

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Find out how to hard reset Sendo S1: Press and hold the CALL and the END CALL key and the power button together.

Find out how to hard reset Sendo S360

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How to hard reset Sendo S330 : Only with flashing firmware

Find out how to hard reset Sendo S251

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Find out how to hard reset Sendo SV663

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Find out how to hard reset Sendo X

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Find out how to hard reset Sendo X2 : Cancelled

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.