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. 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.
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.