This sounds like a comon problem with general firmware coruption, it usually happens after something has been installed on the mobile phone though. Although you are given access to the software for the mobile through the sony ericsson website, your arnt given access to the bootloader firmware as this is ment to be used by engineers only. I do have the bootloader firmwares and relevant equipment to fix this fault for you. I charge a fixed fee of £5 for the repair to the firmware and your phone will be reset back to factory condition. If the mobile has been dropped or suffered damage in any way, there may be additional damage to the screen or the main hardware itself, and a new screen would cost £20 and the main hardware i dont replace myself and would be a replacment mobile job.
If you want more information please contact myself at drewishuk@yahoo.com
Thanks
Andy
Andy, May 2008