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FrizzTech > Blog > How To > Android > How To Fix Connection Problem Or Invalid MMI Code On Android?
AndroidHow To

How To Fix Connection Problem Or Invalid MMI Code On Android?

Lal Pratap Singh
Last updated: 2023/01/31 at 7:14 PM
Lal Pratap Singh
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Fix Connection Problem Or Invalid MMI Code On Android
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It can be very frustrating when you receive a connection problem message or an invalid MMI code on Android. But don’t panic, the issue can be fixed. We will take you through simple steps on how to fix invalid MMI code issues in this article.

Contents
Meaning of invalid MMI codeHow to fix an invalid MMI code on Android?Five different ways to fox an invalid MMI code or connection error 1. Restart the android device2. Use your phone in safe mode3. Airplane mode4. Network resetting5. Entering comma at the end of the codeBottom Line

Meaning of invalid MMI code

In the first place, what is an invalid MMI code?

An invalid MMI code is an error message you can receive on your android phones. An invalid MMI code android means you cannot make or receive any calls and text messages. The phone user on which this message appears will be able to use it once the issue is fixed. Further, there is no particular reason why you would receive this message. An invalid MMI code or connection error can occur for many reasons.

Further, the main reason you would receive a connection problem or invalid MMI code error is the problem with the carrier provider. In addition, you may also receive a message when there is an issue with the SIM authentication problem. But the good news is that the issue is fixable.

How to fix an invalid MMI code on Android?

How to fix an invalid MMI code on Android

Now that we have seen the meaning and the reason for the error. This part of the article will tackle different ways to fix the issue. As stated earlier in the article, the error message is easily fixable. Further, there are multiple ways to fix the issue. Here are a few ways to fix the issue on your device. We will take you through five easy and simple ways to fix the issue. Further, we will detail the steps involved in all five ways.

Five different ways to fox an invalid MMI code or connection error 

1. Restart the android device

The first and simplest way to fix a connection problem or invalid MMI code is by restarting the device.

To restart the phone, you must first shut down your android device like you usually do. Next, wait for a couple of minutes before restarting the device. This method should fix the issue immediately and solve the problem.

2. Use your phone in safe mode

The next best way to fix a connection or MMI code issue is to use the phone safely. To do this, press and hold the shutdown button. Then start your phone; you can restart your phone by holding the power button on your Android device. Then do a long press on the power button. This will open a menu. In the menu, select safe mode. Now your android phone will be safe to use and fix the problem. One of the main reasons for the error is the interference of third-party software that is fixable by changing to safe mode.

3. Airplane mode

The third simple fix to connection and invalid MMI code issue is aeroplane mode. All you need to do is select the aeroplane mode on your android device that you are facing the issue on. Then, wait for nearly 30 seconds to one minute. After the waiting period, please turn off the aeroplane mode. Many Android users have solved the connection issue by following this simple method.

4. Network resetting

Network reset to fox MMI code issue

As stated earlier in the article, the main problem for occurring of an invalid MMI code is a network issue. So, the simple solution would be resetting your device’s network.

To reset the network on your android device that you are facing the issue on. For doing a network reset, you need to follow some simple steps. The first thing you need to do is open the settings tab on your phone. Then click on the general management setting. Under this step, you must select the reset option and reset your network. This method can help you fix the connection issue and solve the problem.

5. Entering comma at the end of the code

The best and the last simplest way to fix an invalid MMI code or connection issue is by adding a comma at the end.

For instance, if your Prefix code is *2904*7#, add the comma at the end. This is a very simple trick, but it fixes the issue without any problem. Adding a comma at the end forces the operation to execute. In most cases, the trick will solve the issue and help fix an invalid MMI code android phone.

Bottom Line

To sum it up, an invalid MMI code is not a big issue. It is fixable but needs patience and knowledge. In this article, we have listed five simple and easy ways to fix the issue.

Also Read: How To Set Up Voicemail On Android

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Lal Pratap Singh January 31, 2023
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Posted by Lal Pratap Singh
I am an accomplished coder and programmer, Quality Engineer and I enjoy using my skills to contribute to the exciting technological advances that happen every day at Multi-National Tech. Organization. I am pouring my experience into writing Technical blogging. I graduated from the Vellore Institute of Technology in 2012 with a Bachelor's Degree.
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