W910i support

If your phone displays No Network or Emergency Calls Only:

• Determine the areas where the issue occurs. Elevators, mountains, parking lots, and other enclosed areas may cause signal interference. You may be able to improve reception by moving to an open location free from obstructions.
• Restart the phone.
• Perform a network search from the phone menu to check if any networks are available within range. Try to select a networks manually, and see if the phone can connect to that network.
• Remove the SIM card and test with a known good SIM card to isolate the issue. Please note, that for some models unsaved messages in the phone may not be available after swapping SIM cards.

1. From standby, select "Menu" > Settings > Connectivity (tab).
2. Select Mobile networks > New search. The search for networks will now begin.