Sony Ericsson Update Service powered phones of the Swedish-Japanese mobile phone manufacturer with firmware updates. The freeware supports beside the popular Xperia models like the Xperia U also many older phones like the Sony Ericsson K800. The Sony Ericsson Update Service recommends a backup of all the stored in the phone memory data before the firmware update. In addition, users should be careful before starting the update that the battery level of the mobile phone is at least 50 percent or more. For updating the firmware, the Mobile also should be connected via a USB cable to the PC. The free Sony Ericsson Update Service checks the software from Sony phones on their relevance to and plays a if necessary firmware updates. With the German short instructions for the tools and computer layman should succeed the software updating their Sony Ericsson handsets.