1. Open your phone and slide down from the home screen to the status bar.

2. In the pop-up option box, find the "Edit" option and click it.

3. In the editing options, find the "Show Operator" option and click it.

4. A small page will pop up with "Mobile Network" and "Cellular Mobile Network" on it. If you want to turn off the operator at once, just click "Automatic" to turn it off in batches.