In order to hard reset a HP iPAQ h6315, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
HP iPAQ h6315 device will be brought back to the default configuration of a brand new device.
1. Turn off the phone.
2. Now press & hold the Power and Reset buttons for four, no, five seconds.
3. The phone will now reset and restart, returning to its default settings. Well done.