Turn Airplane Mode on and off. Quickly reset your smartphone's connection to its mobile network and the internet by turning on Airplane Mode, waiting several seconds, and then turning it off again. Change the cellular network connection. Switching between 5G to 4G or even 3G or LTE could help the MMI code work.
Aug 15, 2024
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Nov 14, 2023 · How to Fix the "Connection Problem or Invalid MMI Code" Error on Android · 1. Edit the Code · 2. Enable and Disable Airplane Mode · 3. Toggle ...
Sep 20, 2015 · You are getting “Connection problem or invalid MMI code”, this error mainly occurs because of the connection issues & sim card authorization. This issue mostly ...
Sep 14, 2022 · The next fixes are to Modify Prefix (put a comma in front of the Prefix) or Activate radio turning on IMS over SMS.
Sep 7, 2023 · Restart the device · Uninstall the pre-installed apps (safe mode) · Update the latest system software · Add the comma or plus at the end of ...
Feb 1, 2024 · None of the MMI codes I punch into my dial pad work. I keep getting the error "connection problems or invalid MMI code" Code Function *#0*#
Oct 4, 2023 · Wondering why your phone is popping up invalid MMI code error? No need to worry and go ...
Duration: 4:15
Posted: Oct 4, 2023
Duration: 4:15
Posted: Oct 4, 2023
Jul 19, 2022 · How to Fix MMI Code Error and Connection Problem? · Disable Third-Party Apps · Insert a Comma at the end of Prefix · Activate Radio · Turn Off ...
Jun 6, 2021 · Connection problem and invalid MMI code error are mostly found in lite mode. The user can select the mode of connection manually automatically.
Call Forwarding Cancellation Error: Call forwarding Connection problem or invalid MMI code. unconditionally for All Basic Services
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