Technobezz

How To Fix Invalid MMI Code Error On Huawei Phone

 

Huawei users who are facing invalid MMI code error on their phone – this post is for them. Here I will discuss some steps and you need to follow them to fix the issue.

See also- 6 ways to fix connection problem or invalid MMI code

Method 1

You need to run your Huawei phone into the Safe mode which temporarily disables all the apps. Once you see Safe mode at the left bottom corner of the screen type in the same prefix code in the dialer that you were trying before and see what the result is. For example type *135#.

If it is working fine, then any app is the reason for this invalid MMI code, so uninstall the recently installed apps or that particular app which is causing this issue.

How To Fix Invalid MMI Code Error On Huawei Phone_1

Method 2

Another way is to add a comma (,) at the prefix code end.

For example, if the prefix code is *2904*7# then just add a comma at the end, i.e. *2904*7#,

Or you can also add a plus sign (+) after *, like *+2904*7#.

 

Method 3

Enter into the information mode of your device and turn on IMS over SMS.

To go to the information mode:

  • *#*#4636#*#* needs to be dialed in the dialer
  • Go to Phone information/ Device
  • “Run Ping test” needs to be clicked
  • Click on “Turn off radio” after the ping test is done
  • You will see “turn on IMS over SMS”, click on it
  • Reboot your phone.

 

Method 4

Restarting your phone for 3-4 times can solve the MMI code problem on Huawei sometimes. Turn on your phone and go to network settings. Now hold the Home and power buttons together until the phone goes off. Turn it on again.

Method 5

Go to Settings on your phone > Network connection > Mobile networks > Network Operators. It will start searching. From the option you need to select your service provider. If still the invalid MMI code problem is occurring then connect again. It may take 4-5 attempts to start working.

 

 

More on this topic

Leave a Reply

5 Comments

  1. Abdi mohammed May 27, 2019
  2. Abdu mohammed April 10, 2019
  3. Andualem Koriya November 30, 2018
  4. Andualem Koriya November 30, 2018
  5. Maria Nelia Tadeo July 31, 2018
OnePlus
A Mystery Product from OnePlus to be Unveiled in CES2020; Could it be OnePlus 8 Lite?
Kirin 1020 soc
Huawei to Unveil Kirin 1020SoC With Superior Performance to Kirin 990
Cyberpunk 2077 release date
Cyberpunk 2077: Everything We Know So Far
Japan Display
Apple’s Display Panel Supplier Japan Display Might be Taken Over by Ichigo Asset Management
Android Apple Gaming How To Internet iPhone Personal Computers Review Site review The Top Best
Cyberpunk 2077 release date
Cyberpunk 2077: Everything We Know So Far

Cyberpunk 2077 is a forthcoming role-playing game from the house of...

apps won't download on Android
How to Fix Android Won’t Download Apps

We love our smartphones because they are so brilliant when it...

Wi-Fi problem
How To Fix “Unable To Connect” Error On Android

There is hardly anyone who doubts the popularity and flamboyance of...