Tag Archives: how to solve connection problem or invalid MMI error code

Four ways to get over Connection Problem Or Invalid MMI Code on Android

If you are  android phone users you must be familiar with ‘connection problem or invalid MMI code’ problem. This problem is nerve-wracking one, particularly when you try to call somebody in difficult situations. We all have got through this problem while inquiring about balance, recharging mobile and calling somebody. The problem is very common but, do you know how to get …

Read More »