This error stops them from making certain calls and sending some text messages until they fix this mess.
In this guide, we will explain how to fix connection problem or invalid MMI code on Android gear.
What are MMI Codes?
All the MMI codes have some kind of similarity, but this doesnt mean that they are the same.
These codes fall into different categories based on the different actions they can perform.
How To Fix Connection Problem or Invalid MMI Code On Android gear?
There can be many reasons behind the Connection problem or invalid MMI code error.
Therefore, the solutions given below deals with these causes.
1) Modify the Prefix Code
This is the simplest solution if it works for you.
Therefore, you should try this solution before moving to more complicated ones.
If the above solution didnt work for you, then move to the next one.
before you get going you must install a free app on your Android rig.
The apps name is 4G Switcher.
you’re able to search and install this app by visiting the Google Play Store.
After installing the app, follow the steps given below.
This solution will work if your mobile is unable to receive proper signal from the service provider.
