Hard Reset O2 XDA (HTC Wallaby)
- Take the Stylus and use the half with smaller point.
- Use it and put in Battery switch , device will now power off.
- Now put Stylus again in Battery switch to startup handset.
- Then HTC device should boot up to make Factory reset.
Help! This doesn't work
Hard Reset will erase all of your data
All described operations you are doing at your own risk.