O2 XDA soft and full - hard reset

To perform a soft reset:

If your Pocket PC Phone responds slowly stops responding or freezes, try soft resetting it. A soft reset causes the Pocket PC Phone to restart and re-adjust memory allocation. Unsaved data in open windows may be lost.
• Use the stylus to press and hold the Reset button.

1. Soft Reset. Press into the hole with the end of your stylus to reset your device

To perform a full reset - hard reset:

A full device reset clears memory, deletes all data and restores the Pocket PC Phone to its default settings. Programs installed at the factory remain, while data you have created and programs you have installed are erased.

1. Unscrew the stylus and use the smaller point of the top-half.
2. Press the battery switch once to turn it off, and then once more to turn it back on.