1) In application settings I am missing Unknown Sources and PC companion installation; I can only see Manage applications and Development.
2) When downloading backup & restore application from <m.sonyericsson.com/backup> and tap to install the file it gives me the following warning (For security, your phone is set to block installation of applications not sourced in Android Market), I can only tap on (OK), it does not give me the option to tap on setting or cancel.
3) I not even able to sync my phone with SE site, I am missing Sony Ericsson in the following Tap Settings > Data synchronization > Select sync application Select Sony Ericsson
4) How do I remove the brander AT&T phone, so I can upgrade to firmware 2.1.
2) When downloading backup & restore application from <m.sonyericsson.com/backup> and tap to install the file it gives me the following warning (For security, your phone is set to block installation of applications not sourced in Android Market), I can only tap on (OK), it does not give me the option to tap on setting or cancel.
3) I not even able to sync my phone with SE site, I am missing Sony Ericsson in the following Tap Settings > Data synchronization > Select sync application Select Sony Ericsson
4) How do I remove the brander AT&T phone, so I can upgrade to firmware 2.1.