Many Xiaomi smartphone owners face the annoying situation when dialing a phone call instantly resets or does not connect at all. For the Redmi Note 8 model, which remains popular due to the balance of price and quality, this issue is often not related to a breakdown, but to software restrictions or specific operator settings. Understanding the mechanisms of telephony in the shell of MIUI allows you to quickly fix the problem without going to the service center.
There are several scenarios that users often confuse with the need to configure an auto dial: locking from the operator, the enabled function “Hide the number” or software failure of the communication module. Before embarking on complex manipulations, you need to clearly determine what exactly is the cause of the connection break. In this article, we will discuss in detail all possible solutions to the problem, from standard settings to hidden engineering menus.
Reasons for a call reset on the Redmi Note 8
The first step should always be diagnostics. If your Redmi Note 8 drops a call, it could be caused by network congestion or malfunctioning. SIM-Often the problem lies in physical contact: oxidized contacts or an improperly installed map can cause a signal loss at the time of initiation of the call. SIM-card.
Another common reason is activated Number Anti-Detector or a conflict of communication standards. Operators sometimes force calls to drop if a number that hides its ID tries to call service providers or subscribers who have banned anonymous calls. Also, consider that in some regions 3G networks are already offline, and the phone tries to switch to 2G or 4G, which causes a break when dialing.
⚠️ Note: If the call reset only occurs on certain numbers (such as short service numbers), the problem is almost certainly on the operator’s side or in the plan, not in the phone’s settings.
It is important to check whether you have a third-party caller program that could gain access rights and conflict with the system module MIUI Dialer. Xiaomi's standard interface has its own features of re-call, which can be violated by third-party software. Disabling or removing such applications often returns stability of communication.
Use of standard reset functions
In the MIUI shell installed on the Redmi Note 8, the classic auto dial (when the phone itself calls at regular intervals) is not as obvious as in older button phones. However, the basic mechanism for re-calling the last number is present. To activate it, you need to open the call log and press the re-diall button, usually located in the lower right corner of the screen or available through the recent action menu.
Some users look for Autocall settings in the call settings menu, but in modern versions of Android and MIUI, this item is often hidden or removed for the sake of minimalism. Instead, the system offers a Recall feature, which requires user confirmation before making each new connection attempt, this is done to prevent the user from accidentally wasting money when a bad signal is used.
If you need automatic replay without you, the standard Redmi Note 8 is difficult to do without using third-party solutions, but you can take advantage of the built-in fast communication capabilities, for example, assigning a contact to the quick dial button reduces the time between attempts, although it does not automate the process completely.
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Use Google voice search for quick re-typing: say “Call [Contact Name]” and the phone will try to connect you even if the previous call was reset.
Configure through the engineering menu and hidden codes
To further adjust the communication settings on the Xiaomi Redmi Note 8, you can use the engineering menu, which is a powerful tool that allows you to manage network priorities and modem parameters. Be careful: changing the wrong settings can lead to complete loss of communication, so write down the initial values before making changes.
To enter the engineering menu, open the Phone app and dial the combination ##4636##. If the menu does not open, your operator or firmware may block this code. In this case, you can try the code ##3646633#, which is standard for MediaTek installed in Redmi Note 8. In the menu that opens, select the Phone Information tab.
You can force a network type switch here. For example, if you're in an unstable 4G area, your phone may lose connection when you try to dial. Switching to WCDMA only (3G) or GSM only (2G) mode can stabilize the connection for voice calls, Internet speed for voice stability.
⚠️ Warning: Never change values in the BandMode or Set Preferred Network Type section at random.Incorrect frequency settings can make SIM-map invisible to the operator's network.
The engineering menu also provides real-time signal strength and connection quality, and RSSI and SNR will tell you whether the problem is software or physical (weak signal), and if the RSSI is below -110 dBm, the coverage is the problem, and the phone settings are powerless.
Application of third-party applications for auto dial-up
Because Redmi Note 8’s regular means are limited, the most effective solution for a full auto dial is to install specialized applications from the Google Play Market. Programs such as Auto Redial, Automatic Retry or Repeated Calls take over the dialing process by performing repeated attempts at predetermined intervals.
When you install an app like this on Xiaomi, you need to set the permissions correctly. The MIUI system is known for its aggressive battery saving, which can kill the background auto dialing process. You need to go to the app settings, select Auto Start, and allow the auto dial to run in the background. Without this, the auto dial will stop as soon as the screen goes out.
☑️ Setting up the auto dial-up application
These applications typically allow you to set the number of times you try and the interval between times, especially for those who are trying to call congested support lines or service hotlines where the signal is busy for a long time, and some applications even know how to analyze the beeps and stop trying if the line is busy, or vice versa, keep calling.
| Annex | Type of auto dial-up | Rights requirements | Impact on the battery |
|---|---|---|---|
| Auto Redial | Last one. | Phone, Contact. | Average. |
| Call Scheduler | Scheduled. | Phone, Calendar. | Low. |
| Repeated Calls | Cyclical | Phone, SMS. | High. |
| MIUI Dialer | Manual repetition | Systemic | Minimum |
Using third-party software is a trade-off between convenience and security: trust only high-rated apps and high-downloads. Remember, the auto dialer gets full access to your calls, so it's important to have confidence in the developer.
Setting up the number hiding and its effect on the connection
Often users are looking for a way to set up an auto dial when they actually need to control the number display, as hiding the number leads to a call reset. On Redmi Note 8, this setting is in the call menu. Open Phone, click three dots in the corner, and select Settings.
In the “Additional Settings” section (or “Accounts” depending on the version of MIUI), find “Subscriber ID” or “Display Number” and there are three options available: “Show Number”, “Hide Number” and “Default (Network Settings)” if you have “Hide Number”, many services and people will reset your call automatically.
Why does hiding a number cause a reset?
To change the status of the display number, the system sends USSD-The answer will come in the form of a pop-up notification. If the setting does not change or returns to its original state, then the service is blocked at the tariff level.
It is important to distinguish between the software hidden in the phone menu and the number antideterminer service. The first works at the device level, the second at the network level. For stable auto dialing and passing calls, it is recommended to set the value “Show number” or “Default”.
Reset network settings and eliminate errors
If none of the above methods worked, and the Redmi Note 8 continues to drop calls, there may be some errors in the network configuration, in which case the effective solution would be to reset the network settings, which will not delete your personal data (photos, contacts), but will return to factory values the parameters of Wi-Fi, Bluetooth and mobile communication.
To perform the reset, go to Settings → About Phone → Reset → Reset your Wi-Fi, mobile internet and Bluetooth settings. Once rebooted, the phone will re-register on the operator’s network, receiving fresh access options. This often solves the sticking problems in old cell towers.
⚠️ Note: After resetting the network settings, you will have to re-enter passwords from all Wi-Fi networks and re-interface with Bluetooth devices (earphones, watches).
It’s also worth checking for system updates. Xiaomi regularly releases security patches and enhancements for communication modules. Go to Settings → About Phone → MIUI version and check for updates. Sometimes the auto dial problem is solved by simply updating the firmware to the current version.
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Comprehensive approach: the combination of resetting network settings, checking the engineering menu and using a specialized application gives a 99% guarantee of solving the problem with an auto dial.