For the map to display towers it checks the tower ID, looks up our database for the tower location, and then plots the location on the map. There are several factors which can lead to nothing being displayed on the map:
- The towers are not in our database. If we don't have the towers in our database we do not know their location, so we cannot map it.
- You are using 3G. When the phone is in 3G mode then it can only find the nearest tower. It cannot find neighbouring towers. If the nearest tower is not in our database, then the map will be blank. (You can switch to 2G only via the Android settings: Settings > Wireless and Networks > Network Mode > GSM Only).
- You don't have an active data connection. You need an active data connection to look up the tower position from our servers. This can either be 2G/3G or WiFi.