O2 XDA Terra hard reset

Soft reset

Reset button Use the stylus to press the reset button to restart your phone

Restore to Default (Hard Reset)

Restoring to default will clear all data in the memory on the handset.
After system restart, the handset will return to factory default. Contacts,
tasks, calendar appointment, personal information, as well as additionally
installed applications/configuration will be cleared. You can sync the data
to the computer or copy to memory card prior to restoring to the default
settings to avoid the loss of data. This will avoid the lost of data.When
the handset malfunctions due to inappropriate controls, you can attempt
to restore to factory default.

When the system is unable to startup, you can try to use hard reset
to restore to default settings.We recommend that you contact our
customer service representatives before using this function in order
to avoid damages to your phone and data.

Action: Using the Restore to Default

1. Select > Settings

1. Select System

1. Select Restore to default

Launch restore to default application

1. Enter 1234 Then select Yes

Please enter 1234 then select Yes. The phone will restart after resetting

Action: Hard Reset restore to default

1. Press & hold Power button Then select Yes

1. Turn off the phone
2. At the same time, press & hold the left/right
   confirmation button plus the power button then press the Reset button

Simultaneously press and hold the left/right confirmation button
plus the power button, then use the stylus to push in the reset
button on left side of the unit

1. Press the Talk button to restore to defaults, or
   press <Other buttons> to cancel