Thank you for your patronage is EMOBILE services and products.You patronize our Sony Ericsson mini (S51SE) have Okimashi to prepare the system we have the latest software.We ask customers S51SE available will be announced as you update to the latest system software.Because we strive to provide our products and services we intend to better the future, I look forward to your continued patronage.Start date Update December 15, 2011 (Thu) 18:00Updates Improved operational stability in use.Target model Sony Ericsson mini (S51SE)※ The file size is about 8MB.※ When you update system software using the 3G network is packet communications charges. Other details of the system software update, please refer to the following URL. http://emobile.jp/products/se/s51se/systemsoftware.html■ Contact the following please contact contact us If you have any questions. Customer EMOBILE Hours: 9:00 - 21:00 (seven days a week) E-157 from mobile phones free from public phone (toll free) 0120-736-157 mobile phone companies ※, PHS also available. More ordered the wrong number ※. Well check out the above number, please call. Some light phone ※, the other IP phones are available in all cases.