How to Fix ‘Connection problem or invalid MMI code’ when Running USSD code in any mobile phone

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

How to Fix ‘Connection problem or invalid MMI code’ when Running USSD code in any mobile phone Comments:

DeathFrozeN WT: nasil bir gavursunu

Alma Lawan: Thanx

Phung Dung: it only works with mobile data. how does it connect to wifi network?pls, help

Gyan Stephen: Pls I need ur help email me on [email protected] sim on MMI COMPLETE

Safeer Hussain: when i dailed *786# for easy paisa mobile account to open for options .MMI complite ……. but blanks box … what is MMI ….. plZ help me

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