is it an Android HTC?
You can try texting settings to 2020 but this method only works for some Android phones,not all of them.
The 3 methods that are guaranteed to work are:-
You can either follow the guide at
Or connect to the internet by wifi,visit the android market anf download an app called "giffgaffapn".Once you have downloaded and installed it select the second option that will input all your settings for you.
Or download the apk file for the giffgaffapn app from the link below,copy it to your phone's sd card and install and run it as above.
My moblie network won't listen on my htc and I don't know how to sort it someone help?
Assuming you have an android and you can use wifi, download the giffgaffapn app here:https://market.android.com/details?id=com.paulshirley.android.giffgaffsetapn&feature=search_result
or through the market app/google play on your phone. Install, run & select option 2, then option 1.
Or if you need to enter the settings manually follow this video http://www.youtube.com/watch?v=OQDm09iOZmc
Hope this helps
Alos once you do have the settings on your mobile phone and from what I see you have a Blackberry you must REBOOT your mobile phone for the settings to take effect.
Remove the battery whilst the mobile it switched on the replace the batter this will fully reboot your mobile, by turning on and off does not reboot your phone.
I hope the info helps you.