Modern Android smartphones, including popular models from Xiaomi, Redmi and Poco, have a wide range of functionality that is often hidden from the eyes of the average user. One of these features, relevant in situations of network congestion or while waiting for an important connection, is an auto dial. This option allows the device to automatically retry the connection with the subscriber if the line was busy or the call was not received the first time. Owners of MIUI devices often find that the standard switch for this function may not be in the usual menu, or it is hidden deep in the system codes.
The need for automatic re-dialing is not only in peak hours when base stations are overloaded, but also in situations when you call call call centers or government services. Rather than manually pressing the call button dozens of times, a smart phone can take over. However, implementing this feature in the shell of MIUI and the new HyperOS has its own features that differ from stock Android or iOS. Understanding how mobile telephony works within the Xiaomi ecosystem will help you set up the device as efficiently as possible.
In this article, we will take a look at all the ways you can activate an auto dial, from standard settings to advanced methods through the engineering menu. You will learn how to bypass the limitations of the interface and make your smartphone work harder. It is important to understand that some methods require caution because they affect the system parameters of network interaction. We will look at safe activation routes that will not disrupt the stability of your gadget.
Standard Call Settings in MIUI and HyperOS
The first place to look at is the basic settings menu of the phone. Most modern Xiaomi firmware versions are looking to simplify the interface by taking secondary features into the background or hiding them in the submenu. The standard way to check for autorepeat is to open the Phone app, click on three dots in the upper right corner and select Settings. Next, look for the Additional or Advanced Settings section.
There may be a re-dialing item inside this section, but it's worth noting that in recent MIUI 14 and HyperOS updates, manufacturers often remove the explicit AutoDialer switch, relying on carrier standards or replacing it with other mechanisms. If you don't find the right switch, it doesn't mean that the feature is not available. It can be implemented through hidden codes or system commands, which will be discussed below.
⚠️ Note: The settings interface may vary depending on the firmware version (Global, China, EEA) The absence of a visible switch in the menu is not a defect of the device.
If standard methods fail to activate the function, do not despair. Android provides deeper levels of access to call management. Often users search for the option "Autorespond" or "AutoCall" in one place, forgetting that these functions can be divided into different logical blocks. Also check the section Special features in the general settings of the system, as sometimes features for people with disabilities include automatic call management modes that can be adapted to your needs.
Use of the USSD-code-command
One of the most effective ways to manage telephony is USSD-These are special combinations of characters that are sent directly to the operator's server or processed locally by the SIM card and phone. Codes starting with an asterisk and a grid are used to activate certain types of forwarding or notifications about the line occupation. For example, *#67# allows you to check the forwarding status when a line is occupied.
Although direct USSD-The code for "infinite auto dialing" is rare, there are codes that control the behavior of the line during employment. Entering the command **67* number phone # can activate hidden forwarding or notification, depending on the tariff and operator. However, a more powerful tool is to use codes to access the hidden test menu, which we will discuss in the next section. For the average user, it is enough to know that the management of call parameters often lies through combinations entered in the "caller».
It is important to distinguish between operator codes and Android system codes. The former require a balance or a specific tariff plan, the latter work at the device level. If you entered the code and saw a pop-up error message or “MMI Connection Problem”, this means that your operator or current firmware version is blocking this request, in which case you should try alternative methods of setting up.
- 📞 Enter the codes carefully, without unnecessary spaces, in the dialing application.
- 📡 Make sure the SIM card is active and has a network signal before entering commands.
- 🔒 Some codes may be blocked by the operator to prevent accidental changes.
Engineering menu and hidden phone settings
The most reliable way to enable auto dialing on Xiaomi devices is to log in to the Engineering Mode, a hidden part of the system designed to test equipment and configure network settings. It uses the universal code ##4636## to log in. Once you enter this combination in the Phone app, the menu should open automatically, without having to press the call button.
In the Testing menu that opens, you need to select Phone Information. There are a lot of technical options. Scroll down to the call settings section. Look for Auto Redial or Re-Director. If there is a switch, you can activate it. There may be timeout settings and number of attempts, although in the stock version of MIUI they are often hidden or unavailable for rooting without rights.
⚠️ Warning: Be extremely careful in the engineering menu. Changing unknown parameters, such as the preferred network type or radio frequency bands, can lead to signal loss or unstable modem operation.
If ##4636## doesn't work (as some global firmware versions do), you can try alternative code ##3646633## (MediaTek) or ##8255## (GTalk). However, the Snapdragon processors, which are more commonly found in Xiaomi flagships, run the former, and if successful, you'll get access to deep tweaking of communication protocols.
☑️ Check before entering the engineering menu
Alternative applications for call automation
Since Android and MIUI can be limited in auto dial functionality, third-party apps from the Google Play Store are a great solution, they do not require superuser rights and allow you to flexibly configure the logic of re-typing, such applications run on top of a standard “bell” and intercept the “busy” or “reset” signal, initiating a new call at a given interval.
Popular solutions like Auto Redial or Automatic Call Redial offer re-call interval settings (e.g., every 5, 10 or 30 seconds) and maximum number of attempts, especially when you need to break into a hotline, and installing such software is a safe way to get the right functionality without the risk of getting into system files. Just download the application, give the necessary permissions to make calls and set up a profile.
When using third-party software, it is important to pay attention to the permissions they request. They need access to their phone and contacts to work; choose high-ranking and high-review apps to avoid installing malware. In HyperOS, the system may request additional confirmation to run background applications, which is a security measure.
- 📱 Download apps only from the official Google Play Store.
- ⏱ Set up a reasonable interval between calls so as not to put strain on the network.
- 🔋 Keep in mind that active application operation in the background can consume battery power.
Comparison of Auto dial activation methods
To make it easier for you to choose the right method, we have prepared a comparative table of methods for activating auto dialing on Xiaomi smartphones. Each method has its advantages and disadvantages, depending on your technical skills and firmware version.
| Activation method | Difficulty | Security | Efficiency |
|---|---|---|---|
| Standard menu | Low. | Tall. | Low (often absent) |
| Engineering menu | Medium | Medium | Tall. |
| Third-party annexes | Low. | Tall. | Tall. |
| USSD-code | Low. | Tall. | Depends on the operator. |
As you can see from the table, using third-party apps is often the most versatile and secure solution for the average user. The engineering menu gives more control, but requires caution. The standard menu, alas, in modern conditions, often turns out to be useless for this particular task. The choice depends on how deep you are willing to dive into the settings of your device.
Why are new MIUI versions removing functions?
Frequent problems and their solution
Users may encounter a number of difficulties when setting up an auto dial, most often the problem is that the function simply does not activate, this may be due to a lock on the part of the carrier, some tariff plans prohibit automatic re-calling to avoid unnecessary strain on the network or imposing paid services.
Another common problem is application conflict: If you have multiple call or contact management software installed, the system may not understand which application should handle the re-dial command, in which case it is recommended to temporarily disable or remove the extra "callers" and leave only the standard MIUI Dialer application or a proven analogue.
Also worth mentioning is the impact of power saving mode: Aggressive battery optimization in Xiaomi can "kill" the background auto dialing process, especially if you use a third-party app. To avoid this, add the app to the exclusion list or set up "No Limits" mode for it in the battery menu.
⚠️ Attention: Endless auto dialing may be regarded by the operator as spam or incorrect network behavior, which will lead to a temporary lock of the number.
If nothing works, try resetting your network settings. This won't delete your personal data, but will return all communication settings to factory values. Path to reset: Settings → Connection and Sharing → Reset Wi-Fi, mobile network and Bluetooth. After rebooting, check the function again.
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Use Do Not Disturb mode with exceptions if an auto dial is interfering with you at night, but you are waiting for an important call from a particular contact.
Conclusion and recommendations for use
Set up an auto dial on Xiaomi is a solvable, albeit sometimes unconventional, task: When the standard interface hides the necessary options, engineering codes and third-party software come to the rescue. The main thing is to act consistently and not be afraid to experiment with secure settings. Your smartphone is capable of more than it seems at first glance.
We strongly recommend starting with a dedicated app if the built-in tools fail to activate the feature, which will save time and nerves. For advanced users who want full control, the engineering menu remains a powerful tool. Remember that the competent setting of network settings improves not only the ease of calls, but also the overall quality of communication.
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The best way for most users is to use a proven app from the Play Market, as it is safe and does not require deep technical knowledge.
Technology is evolving, and it's possible that in future HyperOS updates, developers will bring the handy switches back to the explicit menu. But even now, knowing the methods described, you can make your phone work exactly the way you want it to. Stay connected and use the capabilities of your device at full capacity.