How to fix mmi code. For example, to check your account balance, you might enter *123# and press the call button. However, before proceeding further, we’ll discuss the MMI code in detail. Find out how to fix connection failures or wrong MMI code and restore your device's functionality. To reboot in safe mode or enter safe mode, follow these steps: Turn off your device. ” Find and tap on the “Dialer” or “Phone” app from the list of installed apps. Feb 11, 2024 · Android’s “Connection problem or invalid MMI code” error prevents you from dialing your network-specific codes and getting relevant information. Sep 13, 2023 · Several methods exist to fix the “Connection problem or invalid MMI code” on an Android device. From making calls, sending messages, to accessing the internet, smartphones are central to our daily lives. No matter the cause, the solutions below will help you fix Mar 27, 2024 · Solution 4: Clear Dialer App Cache and Data Clearing the cache and data of the dialer or phone app can sometimes fix issues related to processing MMI codes. However, users often encounter frustrating issues like connection problems or invalid MMI code errors that disrupt these activities. qmhsq e7m t3 y41yw ozz uggry uyp7h fv1ih3 bnf eb