Can the ringtone be changed on a Samsung GT E2550? If so - how?
This can be achieved using a microSD card formatted in the phone. In Settings menu, PC Connections, set the phone to Mass storage. Connect to computer and upload your ringtone file to the music folder.
Go to Menu, My files, Memory card, Music. Select your ringtone and under options select Copy to phone.
Now go to Settings, Profiles, select profile, Options, Edit, Call ringtone, Change, Music, Select your ringtone, then press Back repeatedly until you get back to initial screen.