tenta isso aqui (na verdade, faz ao contrário, pq no seu caso vc quer desativar!):
How to Turn on Tower Information
A tower display works as a gps device does, it tells you the location of the cell tower that your phone is using right now (its not the mobile, its the sim card that connects to the closest tower for signals and displays that same place on your screen).
(For example, if you were in London, in Southhall and there is a tower for Orange installed in Middlesex to provide signals, the phone will display "Middlesex" as the area you are in right now.). This feature is known to work in Europe, India, Asia and the South Pacific, and South America. It does not appear to work in Canada or the USA. For the A1200i (Spanish language version) it is turned on as a default.
To turn this feature on do the following:
1. Go to Messages ==> use the menu (at bottom left) ==> Service Setup ==> Info Services
2. You should see "Info Service Setup"
3. Switch Service to "On"
4. Select the "Active channel" bar and delete any channel that may be there already
5. Use Menu (at bottom left) to create a new channel with value
50.
6. Save and Exit.
It may take awhile before the tower information starts to be displayed (it took my phone a couple of hours), but you should see a third line under the date showing the location. (You will only see this when flap is open; flap closed does not show it).
se não funcionar, tenta esse:
[INFO] RADIOCOMM SCRIPT: Automatic Network Time + Voicemail Bug Script
flws