Solved: How to hard reset ViewSonic V35: Unscrew the tip of the stylus. Use the tip to push the battery switch to...

ViewSonic V36 hard reset: Use the pointed tip of the cap to slide the battery switch to the OFF (left) position, then ON (right) again...

Solved: how to hard reset ViewSonic V37: Unscrew the cap at the top of the stylus. Use the pointed tip of the cap to...

Solved: how to hard reset ViewSonic ViewPad 100: Remove the back cover panel using a small Phillips-head screwdriver or...

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.