There is now a firmware update available for the Sony Ericsson Xperia X1 reports coolsmartphone and is XPERIA X1 R3A firmware.
The XPERIA X1 R3A update is now live and ready to boost your Windows Mobile smartphone signal strength, and also increases the intensity of the X1’s keyboard backlight, improves touch screen responsiveness, and speeds up the media panel witch is part of the Panel user interface.
The Sony Ericsson Xperia X1 is somewhat different to most Windows Mobile handsets and thus needs to use the “Update Service” to check for updates.