Auto-dialing on Xiaomi Redmi 9: a complete guide to setting up on Android

Auto-dialer function on Xiaomi Redmi 9 can be a real salvation in situations where the subscriber is temporarily unavailable. This option automatically retries the call at specified intervals, saving you time and hassle. However, not all users know that setting up auto-dialer on Android devices (especially in MIUI firmware) has its own characteristics - standard system parameters are often hidden or require additional manipulations.

In this article we will analyze all the possible ways to activate auto-dialer on Redmi 9: from built-in MIUI tools to third-party applications and engineering codes. You'll learn how to set redial intervals, what carrier restrictions apply, and why the feature may not work even after proper configuration. We will pay special attention to the nuances of the firmware MIUI 12/13/14 —they radically affect the availability of the option.

We warn you right away: some methods require superuser rights (root) or installation of unofficial firmware. If you are new to setting up Android, start with the simplest methods - they are described in the first sections. For experienced users, we have prepared advanced instructions using ADB and hidden menus.

What is auto redial and how it works on Android

Auto dial (or auto call repeat) is a function that automatically calls the subscriber back if the first call is unanswered or fails (busy, out of network coverage, etc.). On smartphones Xiaomi the implementation of this option depends on:

• 📱 MIUI firmware versions —in new versions (13+) the function is often placed in a separate menu, and in older ones (MIUI 11-12) it can be hidden in the SIM card settings.
• 📡 Mobile operator policies —some providers (for example, Tele2 or Iota) block auto-dialling at the network level.
• 🔧 Having root access —advanced settings (for example, changing the number of attempts) require deep access to the system.

By default, auto-dial is disabled. The system offers three standard repeat call scenarios: Redmi 9 Auto dialer is disabled. The system offers three standard callback scenarios:

1. Fast repeat —attempt to call after 10-15 seconds (suitable for short-term communication failures).
2. Medium interval —retry after 30-60 seconds (optimal for busy subscribers).
3. Long interval —attempt after 2-5 minutes (for subscribers outside the coverage area).

It is important to understand that auto-dial does not guarantee a connection —it only automates the process of repeated attempts. If the subscriber is in an area without a signal or his phone is turned off, the function is useless. Operators can also limit the number of automatic retries (usually no more than 5 attempts in 15 minutes).

Method 1: Enabling auto-dialer through standard MIUI settings

The simplest method is to use built-in firmware tools. On Redmi 9 s MIUI 12 and later the path to the settings is as follows:

1. Open the application Phone (handset icon on the main screen).
2. Click on the three dots in the upper right corner → select Settings.
3. Go to the section Calls → Auto redial (or Repeat call in some localizations).
4. Activate the slider Enable auto redial.
5. Configure the redial interval (available options: 10, 30, 60 seconds or 2 minutes).

If there is no item in your menu Auto dial, it means:

• 🔄 You have an outdated version of MIUI (update the firmware via Settings → About phone → System update).
• 📵 The function is blocked by the operator (check the SIM card settings in the section Mobile network).
• 🛠️ The firmware is modified (for example, custom) data-i="98">), and the option is removed. LineageOS), and the option is removed.

Check the MIUI version in Settings → About phone

Make sure the SIM card is active and not blocked

Update the Phone application in Google Play

Reboot smartphone before setting up -->

On MIUI 11 and older the path may differ:

Settings → System applications → Phone → Auto redial

⚠️ Attention: On some firmware Redmi 9 (especially global versions), the auto redial option is hidden in the settings of a specific SIM card. To find it, go to Settings → SIM cards and mobile networks → [select SIM] → Additional settings → Auto redial.

Method 2: Using USSD codes to activate auto redial

If the standard settings do not work, you can try enabling auto-dialing via service USSD codes. This method is universal for all Android devices, but support may vary by carrier. Below are the codes for popular Russian providers:

To use the code:

1. Open the application Phone and go to the tab Dial.
2. Enter the code, replacing [number] with the subscriber's phone number (for example, *441*79123456789#).
3. Press the call button. You will hear a voice confirmation or receive an SMS about activation.

Please note:

• 🔢 Codes work only for one specific number —for each subscriber you need to enter the command again.
• 💰 Some operators charge service fee (for example MegaFon - 3 rubles for activation).
• ⏱️ The redial interval is fixed and cannot be configured.

⚠️ Attention: USSD codes are subject to change without notice. If the commands do not work, check the current data on your operator's website or through the support service (for example, *111# for MTS).

Method 3: Third-party applications for auto-dialing

If the built-in tools Redmi 9 are not satisfactory, you can install specialized applications from Google Play. They offer flexible settings: choosing the number of attempts, customizing intervals, keeping a log of calls. We tested 5 popular apps - the best options are in the table below:

Step-by-step guide for Auto Redial (the most reliable option):

1. Download the application from Google Play.
2. When you first start, grant permissions to Calls and Contact.
3. In the main menu press + → select a contact or enter the number manually.
4. Configure parameters:
   • 🔄 Interval — 15 seconds (we recommend to start with).
   • 🔢 Number of attempts — 5.
   • 🔔 Notifications — turn on to see the status of repeated calls.

Advantages of third-party applications:

• 🎛️ Flexible settings —you can set different intervals for different contacts.
• 📊 Statistics —a log of successful and unsuccessful attempts is kept.
• 🔋 Battery saving — apps are optimized for running in the background without putting a heavy load on the battery.

⚠️ Attention: Applications for auto-dialing require permission for Calls i Call log. Install them only from official sources (Google Play, APKMirror) to avoid data leakage. Before installing, check the reviews - some apps contain hidden advertising or subscriptions.

Method 4: Engineering menu and hidden settings (for advanced users)

If you are ready to dive into deep settings Redmi 9, you can activate auto redial via Engineering menu or ADB. These methods require caution - incorrect actions can disrupt the operation of the phone.

Method 1: Engineering menu (MTK)

On Redmi 9 with processor MediaTek Helio G80 hidden menu available to configure the communication module:

1. Open the application Phone and enter the code:

   ##4636##

2. In the menu that opens, select Phone information.
3. Scroll down to the block MTK Settings → Call.
4. Find the parameter Auto Redial and set the value Enabled.
5. Adjust Redial Delay (delay in seconds) and Max Retries (maximum attempts).

Method 2: ADB commands (universal for all firmwares)

For this method you need a computer with installed ADB Tools and enabled USB debugging on the phone:

1. Connect Redmi 9 to the PC and execute in the terminal:

   adb shell settings put global auto_redial_enabled 1
   adb shell settings put global auto_redial_delay 30000

   (where 30000 is the delay in milliseconds, i.e. 30 seconds).

2. Reboot the phone.

Limitations of these methods:

• 🔧 After updating MIUI, the settings may be reset.
• 🛡️ On some firmware the engineering menu is blocked (needed root).
• ⚠️ Incorrect ADB commands can lead to malfunctions of the communication module.

adb shell settings delete global auto_redial_enabled
adb shell settings delete global auto_redial_delay

Why auto-dialer may not work on Redmi 9

Even after proper configuration, auto-dialer sometimes refuses to function. We have collected the most common causes and ways to eliminate them, specific to Xiaomi Redmi 9:

Additional nuances:

• 📴 Flight/energy saving mode — disables auto-dialing. Check that these are true. options are disabled.
• 🔒 Blocking numbers — if the subscriber's number is on the black list, auto-repeat will not work.
• 📶 Weak network signal — if the signal level is < 1-2 bars, the phone may not initiate a repeat call.

If the problem persists, try:

1. Reset network settings: Settings → System → Reset settings → Reset Wi-Fi, mobile network and Bluetooth.
2. Clear application cache Phone: Settings → Applications → Manage applications → Phone → Clear cache.
3. Install an alternative dialer (for example, Google Phone or Truecaller) - they have their own auto-dial mechanisms.

Security and privacy when using auto-dial

Automatic redials are convenient, but can create security and privacy risks. Here's what you should pay attention to:

• 🕵️ Data leak — some auto-dialing applications request access to Call log i Contacts. Check permissions before installation.
• 💸 Hidden payments —operators can charge each repeat call attempt as a separate call. Check the terms of the tariff.
• 📞 Spam — if your number ends up in the scammers' auto-dial databases, you may become a victim of fraud (for example, "call back to a paid number").

Recommendations for security:

1. Use only official applications from Google Play with a rating above 4.0.
2. Set a limit on the number of attempts (no more than 5-7) to avoid blocking the number by the operator.
3. Check periodically Call log for suspicious numbers.
4. Disable auto-dialer for unknown contacts.

⚠️ Attention: If you use auto-dialer for business tasks (for example, calling clients), make sure that this does not violate the Law “On Advertising” (Federal Law No. 38). Automatic calls without the subscriber's consent can be regarded as spam, which can result in a fine of up to 500,000 rubles.

FAQ: Frequently asked questions about auto-dialing on Xiaomi Redmi 9