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

3 Comments

  1. Andualem Koriya November 30, 2018
  2. Andualem Koriya November 30, 2018
  3. Maria Nelia Tadeo July 31, 2018
Want to buy an affordable tablet? These are the best cheap tablets
Apple iPhone X Plus
iPhone XL Release Date, Specs, Features, News and Rumors
best smart TVs
Looking for the best smart TVs? Here is our pick
PlayStation 5
PlayStation 5: Release Date, Price, Specs, Rumors and News
Android Apple Gaming How To Internet iPhone Personal Computers Review Site review The Top Best
How To Fix Xbox One Installation Stopped
How To Fix Xbox One Installation Stopped

A lot of users have complained that their Xbox One installation stopped...

How To Fix IPhone Cannot Connect To ITunes Store

One of the errors all iPhone users may see sometimes is...

Oneplus 6
How to fix OnePlus 6 Battery Life Issues

The OnePlus 6 phone comes with myriad features, and if you...