How To Fix Connection Problem or Invalid MMI Code Error Problem Solved

I try to check my Mobile Data Balance in My BSNL Mobile Using this code *124*2# Unfortunately it shows the error notification. It shows "Connection Problem or Invalid MMI Code".

So in this blog, I going to tell you How To Fix Connection Problem or Invalid MMI Code Error Problem on Android Phones. If you want to know then please read the blog carefully.

• Go to your Phone's Settings.

• Turn off the Data Connection.

• Then click on Dual SIMs and Mobile Network.

• Go to Your BSNL SIM.

• And Deactivate your SIM.

• After some time Activate the SIM.

• Go to Dailer App.

• And Using this code *124*2# try to check your data balance.

• If the problem is still there try the next Method.

• Just Restart or Reboot your Device.

• Now again Using this code *124*2# try to check your data balance.

• Finally its shows the Data Balance.

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