To perform a hard reset under the Sharp Sidekick PV300:
- First turn off you phone and remove the:
- SIM card
- Memory card
Flick the screen to access the keypad
- Press and hold the R key and re-insert the battery
- The phone will reboot several time, make sure that you don't release the R key until the reboot process is completed
- Finally you can replace your SIM and Memory card.