How To Fix Connection Problem Or Invalid MMI Code | How To Fix Invalid MMI Code
How To Fix Connection Problem Or Invalid MMI Code | How To Fix Invalid MMI Code
00:00 – Why “Connection Problem or Invalid MMI Code” appears
00:05 – Steps to Fix Invalid MMI Code Error
Restart your phone and check your network signal. Turn on Airplane Mode for a few seconds, then turn it off. Make sure your SIM card is inserted correctly and try dialing the code again. If the issue continues, reset network settings or contact your carrier for support.
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