C - Reset Button — performs a soft reset of the operating system in case of malfunction. Your
data is preserved if it was saved.
You can also use the reset button and power button to do a hard reset.

Save your data to a CF card or to your computer before doing a hard
reset or your data is lost when you do a hard reset.

Be careful how you hold the MobilePro to avoid accidentally touching or pressing the recording
button while simultaneously pressing the reset and power buttons

Simultaneously press and hold the reset button and the power button to do a NEC MobilePro P300 hard reset.

NEC MobilePro P300


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.