Huawei U8800 IDEOS X5 hard reset
Hard Reset: When powered off, press and hold the VOL+ and HOME keys while powering on, use VOL+/- to highlight the Clear Data option, then tap the power button to select. Then select the restart option the same way.
Huawei U8800 Ideos X5 Android 4.0 download firmware download here

or
1. From the Home screen, press the Menu Key and touch Settings.2 Touch the Privacy
4 Touch Factory data reset.
5 Touch Reset phone.
6 Touch Erase everything.