Some devices require adding an APN to access the 3G network. If your phone is having trouble accessing the 3G network in Addis, verify that you have the following APN settings enabled:
If you're having problems sending text messages, make sure your SMSC (Short Message Service Center) is correct. To solve the issue, open the settings of your SMS application, write down the existing SMSC number (very important!) and change your SMSC to:
Step 1: Go to Android settings
Step 2: Go to "More..."
Step 3: Go to "Mobile Networks"
Step 4: Go to "Access Point Names"
Step 5: Select the Plus sign to add an APN
Step 6: Enter "etc" as the APN name and APN
Step 7: Press the menu button and save the APN (IMPORTANT)
Step 8: Make sure the APN is selected and wait for the 3G to connect