Connection problems or incorrect MMI code
When you try to contactthe operator’s number using a smartphone, and then a pop-up window appears that writes connection problems or inappropriate MMI codes, of course, this is quite confusing. Especially if at that time you really need special information from the relevant operator. Of course, there may be an error in the entered code for a special reason.
Of course, as a user, you really first need to understand how the MMI code can be considered inappropriate. So, indeed, it can really be calmer and not get confused, because later this problem can be solved independently, then try to contact the operator in accordance with his corresponding needs. Although in fact, first you need to pay attention to a few steps.
The existence of this particular step cannot be applied simultaneously when trying to reduce the factor of connection problems or invalid MMI codes. So you really need to wait a few seconds to see if the operator can then be contacted or not. No need to immediately worry that your smartphone is damaged, as it concerns the operator’s network.
So when this happens, understand well and be patient in the wait. If this is not resolved when you try again, you can start trying to apply some steps, this can actually be done as a solution to the MMI code error . You do not need to come to the place of service, you can still overcome this condition yourself.
Understanding a phone’s MMI code error
Man Machine Interface stands for MMI in the form of a code. This code is a special service designed to access various functions of the phone. A special code consists of several combinations of characters and numbers. Of course, this is facilitated when it comes to using special functions for the corresponding operators.
This special code is used when you need to get information about the Internet quota or credit, as well as about IMEI and other needs. However, there are still many options for the appearance of connection problems or the wrong MMI codes are also quite annoying, since they interfere with the process when it comes to checking certain information on their network according to their individual needs.
In the combination of these character numbers, various things will cause an error, for example, due to the fact that the network settings appear incorrectly and there may still be a lot of unimportant files in the phone’s memory. The code error is due to the fact that if a temporary error appears on the phone, as well as due to the fact that the lack of support for the operator’s signal decreases.
So, in fact, connection problems or the presence of the wrong MMI code in the phone is not something serious and even requires special processing. Users can actually apply alternative actions based on these possible causes to make it easier to correct errors later on.
Practical tips to reduce the error of special codes
Many of the initial solutions are actually quite easy to use as solutions if there is a connection problem or the MMI code is not valid. It is possible that the cause is an error in your signal network, so the solution is to restart the phone, then wait a few seconds before trying to contact the operator.
Another alternative solution may be easier for you to do when trying to enable plan mode on your smartphone, after waiting a bit for you to return the normal signal. This is a very useful solution , so that your signal is corrected again and quickly properly captured on the phone.
When you find a connection problem or an incorrect MMI code, it may be because less important storage is actually stored in memory. The habit of still leaving less important documents in your memory will certainly interfere with its operation. So it is important that you try to get used to checking the file manager section and start thoroughly deleting unimportant documents in memory.
After clearing the cache and various unimportant files from the phone, more memory will be available for other purposes. In the settings section, of course, you can easily find the storage section, which, in fact, can be cleaned. Doing this regularly is also very useful to keep your smartphone’s performance and memory optimal.
Placing a specific mark on a combination of operator numbers
If, in fact, the previous quick trick still can’t change the connection problem or the MMI code is invalid and there are still problems, try the next steps. Inserting a special sign into the operator code when contacting the operator , can be an alternative , so that the error can be resolved.
At the beginning of the entered code, you can insert a + sign. For example, the code you need is to call *123#, then try to write *+123#. + the sign will be obtained, how to keep the number zero longer. This method can sometimes be successful in overcoming the problem of incorrect code errors on your phone.
Another special sign that can also be used is a comma. But unlike the previous character, you need to insert this comma character at the end of the code. For example, writing *123,#. The way to get a comma to the dial is to hold the button * longer.
Inserting this character is actually a step that is rarely known or done. If you really did everything else, but it was not successful, of course, inserting a character will be very useful. However, pay attention and double-check for connection issues or incorrect MMI codes that you are using correctly.
It is also possible to find the appearance of an error reading the special code of the specified command. Therefore, an important step can be made as a decision that will be applied when awarding these special characters. Try to apply it, for example, there is a connection problem or the wrong MMI code still remains.
Advanced solutions to change the signal
Today, the widely used enis of the smartphone network with high signal strength is 4G LTE. However, this signal service also often causes errors such as connection problems or incorrect MMI codes. This obstacle exists due to the lack of support for this signal when it comes to contacting, as well as due to regular short messages.
Thus, overcoming this problem, you can try to temporarily change the 3G signal so that it is not used in 4G. Of course, only to meet the needs of the phone’s short messages , to make the network more optimal. This will minimize the appearance of problems or errors in a special code when contacting the operator.
To change it, you can go to the settings section of the phone, and then select the mobile network option. It remains only to change it from 4G to 2G/3G, after which you save the settings and try to force the operator to call as a start.
In this way, your phone network will be stronger and there will be no problem reading the mmi character number combination again . Indeed, at the moment, many changes have occurred in today’s smartphones. So there’s more to this hurdle in older versions of smartphones, so adjustments must be made first.
Such network problems are indeed possible in various carriers and mobile phones. As a result, you are not immediately confused, because everything can still be properly solved. There are still so many solutions that can be applied , so that there are no connection problems or invalid MMI codes, but in fact, the latest smartphones will have minimal errors.