Connection problems or invalid MMI code
When you try to contact theoperator’s number via a smartphone, and then a pop-up write connection problems or MMI codes seem invalid, of course, this is quite troublesome. Especially if you need special information from a particular operator. Of course, the code provided may also contain an error for a special reason.
Of course, as a user, you really need to understand how the MMI code can be considered inappropriate. So, in fact, it can be quieter and not confused, because later this problem can be solved independently, and then try to contact the operator for your own needs. Although, in fact, you should first pay attention to a few steps.
This step cannot be applied at the same time when trying to reduce the factor of connection problems or invalid MMI codes. So, it is really necessary to wait a few seconds to find out whether it is possible to contact the operator or not. You don’t have to immediately worry that your smartphone will be damaged because it is connected to the operator network.
So when that happens, you understand well and have patient anticipation. If this is not resolved when you try again, then you can start applying several steps, then it can really be done as a solution to the MMI code error. You do not need to come to the service station, you can still overcome this condition on your own .
Understanding your phone’s MMI code error
Man Machine Interface stands for MMI in the form of code. This code is a special service created to give you access to various functions on your phone. A special code consists of several combinations of symbols and numbers. Of course, it becomes easier if you need to use special functions for the corresponding operators.
The use of this special code is when you need to know about the quota or Internet loan, as well as IMEI and other requirements. However, there are still many possibilities for the appearance of connection problems, or invalid MMI codes are also quite annoying because they block the process when you need to check certain information on the network according to individual needs .
Various objects cause errors in the combination of these symbol numbers, for example, because the network settings are made incorrectly, and many unimportant files may still be stored in the phone’s memory. The error in the code occurs because a temporary error appears on the phone, as well as because the lack of support for the operator’s signal is reduced.
So, in fact, an invalid connection problem or mmi-code on the phone is not a serious matter and even requires a special handle. In fact, users can apply alternative steps based on these possible reasons to make it easier for them to fix the errors later.
Practical tips to minimize the error of special odes
Many of the initial solutions are very easy to use as solutions if there is a connection problem or if an MMI code is invalid. The cause of the signal network may be an error, so the solution is to restart the phone and then wait a few seconds before trying to contact the operator. This step will really help you determine if there are any errors on your phone.
The following alternative solution may be easier for you to try to turn on the plan mode on your smartphone after waiting for a while to return the usual signal . This is a very useful solution to fix the signal again and record it quickly through your phone.
If you find a connection problem or invalid MMI code, you can do so because the least important storage is actually stored in memory. The habit of leaving documents that are less important to your memory will certainly affect its performance. Therefore, it is important to try to get used to checking the file manager section and start diligently deleting unimportant documents in memory.
If the cache is cleared and the various files are not important from the phone, there is more memory available for other purposes. In the settings section, of course, you can easily find the storage part that can really be cleaned. It is also very useful to do it regularly so that the performance and memory of your smartphone remain optimistic .
Placing a specific mark on the operator number mix
If, in fact, the previous quick trick cannot be sure that it is able to change the connection problem, or an MMI code is invalid and the problems persist, then you should try applying other steps. Inserting a special signal into the operator code when contacting the operator can be an alternative to solving the error.
You can insert a + sign at the beginning of the entered code. For example, the desired code is to call *123# and then try *+123#. The sign + how to keep the number zero , is located longer. Sometimes this method manages to overcome the problem of invalid code errors on the phone.
Another special sign can be used, like the comma. But unlike the previous character, you need to insert this comma character at the end of the code. For example, type *123,#. The way to pull up the comma is to hold the * button for a longer time .
In fact, it is a step to insert this character, which is not given or carried out incessantly. If, in fact, you did everything else, but it was not successful, of course, it will be very useful to insert the character. But pay attention and check again if there are any connection problems or invalid MMI codes that you are using in the right way.
You can also find the occurrence of an error that reads the special code for that order . Therefore, an important step can be taken, since the solution will be applicable by bringing in these special characters. Try applying it, for example, there is still a connection problem or an invalid MMI code .
Advanced Solutions To Change Signal
The smartphone has an ENIS network, which today has a more widely used signal strength than 4G LTE. However, this signal service often throws errors such as connection problems or invalid MMI codes. This obstacle is due to the fact that this signal is not supported when it is necessary to contact, as well as regular short messages. Of course, the priority of the network is that the main focus is on the Internet network.
So, in addition to overcoming the problem, you can try to temporarily change the 3G signal from using 4G. Of course, only to meet the needs of short telephone messages , to make the network more optimistic. This reduces the occurrence of problems or errors in the special code when contacting the operator.
To change it, go to the settings section of your phone and then select the cellular network option. If so, you can set up the network you want to use on your phone. All that remains is to change it from 4G to 2G / 3G, and then it will save the settings and try to make an operator call like at the beginning.
Thus, the telephone network will be stronger, and there will be no problems with re-reading the combination of MMI symbol numbers. In fact, at the moment there are many developments in today’s smartphones. So, there is more of this obstacle in older versions of smartphones , so you need to make the settings first.
In fact, such network problems can also cause in different operators and mobile phones. For this purpose, you will not immediately get confused there, because still everything can be properly solved. There are still so many solutions that can be implemented so that you do not have connection problems or invalid MMI codes, but in fact, the latest smartphones have minimal errors.