Restore Vivaz Pro phone to factory default settings
Restoring your phone can be useful if you lend out the phone or just want to restore your phone to factory default settings and delete all user data.
To make a soft reset to delete user data, such as contacts, messages, and downloaded games:
1. Tap Dialler and enter *#7780#.
2. Tap Yes to restore all original phone settings.
3. Enter the lock code (0000 by default) and tap OK.
4. The phone restarts.
To make a hard reset to delete user data and all settings:
1. Tap Dialler and enter *#7370#.
2. Tap Yes to restore all original phone settings.
3. Enter the lock code (0000 by default) and tap OK.
4. The phone restarts.
Note: When making a hard reset of all content, you may lose content that was in the phone when you purchased it.
firmware update with PC companion software
Download PC companion and install
Install PC companion on your PC computer. Follow instruction. For firmware update you need a micro USB cable. When the pc recognizing your Vivaz pro it will install the necessary driver files.
After your Vivaz pro connected press Start / in Support Zone
You can also use Sony Ericsson update service tool
PC Suite is out of date use PC companion software instead
If nothing works: As last resort do a Sony Ericsson phone repaire with PC Suite. Use this method to hard reset AFTER INSTALLATION----> TOOLS > PHONE REPAIR
http://www.sonyericsson.com/cws/support/softwaredownloads/detailed/pcsuite/aino?cc=gb&lc=en