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.!
Motorola ES400 hard reset
Resetting the motorola ES400S, ES400, reset ES405, reset ES405B Resetting the ES400S closes all running programs and restarts the ES400S. Data saved in device memory or a memory card is not lost. To perform a reset, simultaneously press the Power button and the 1 W and 9 C keys.
Motorola ES400 Master Reset:
Resets the ES400S to default settings The Master Reset application allows you to restore the ES400S to the default settings and remove personal information. Data on the SIM card and microSD card (if installed) is preserved. 1. Tap Start > Settings > System > Master Reset > Reset. 2. Enter 1111 in the text box and tap Reset to delete all user data and restore default settings. (Tap Cancel to exit without deleting the data.)
Tip: Phone Software Upgrades – Updates to your phone’s software may become available from time to time. Sprint will automatically upload critical updates to your phone. You can also use the menu to check for and download updates. Press > Setting > System > Update Firmware to search for and download available updates.