the battery on my new n95 was constantly losing its charge so i thought that i might have not charged it properly when i first got it. so i turned the phone off but put the sim card into my old phone. now i have my new sim card back in the n95 and i cant seem to send text messages, i get an error message saying that it is unable to send the message, ive tried sending them to different numbers and none work, ive also put my new sim card back into my old phone and i can send messages.
the only thing i can think of that might have affected this is changing the phone settings because people could not hear me on phone calls (i changed them after reading the thread on here)
i changed the network mode to gsm and changed the operator selection to o2.
i have tried changing the settings back to dual mode and automatic but i am still unable to send messages, any ideas??