“Connection problem or invalid MMI code” on Android phone – javahacker.com

How to fix "connection problem or invalid mmi code" error on samsung galaxy a...

This video shows that how to fix connection problem or invalid mmi code on android phone...these type of errors are occuring due to the sim card management...

How to Fix 'Connection problem or invalid MMI code' when Running USSD code in...

How to Fix 'Connection problem or invalid MMI code' error occurs in any mobile phone having any Network Providers (SIM). Are you getting the message...

Fix Connection problem or invalid MMI code Error in Android|Tablet - YouTube

Connection problem or invalid MMI code | Problem Solved 100% | XIAOMI PHONE -...

Connection problem or invalid MMI code solution for All android phone. In this video I use Xiaomi Phone. Directly found the location setting in dial pad...

connection problem or invalid MMI code - galaxy s3... - The giffgaff community

5 Ways to Fix "Connection Problem Or Invalid MMI Code" in Android Devices [Ho...

how to reset the mmi code (ussd) htc or samsung - YouTube

How to fix Connection problem or invalid mmi code error on samsung galaxy and...

For instant recharge, i am dialing *120*16 digit pin number from the recharge coupon or voucher#. At this time ussd code starts running and displays...

how to fix connection problem or invalid mmi code error on samsung galaxy and...