When a smartphone suddenly starts dialing a number from a contact list or making calls to nowhere, it can cause panic in any Xiaomi owner. This is not only annoying, but can lead to unforeseen costs of communication or leakage of confidential information. Most often the reason lies not in a software failure of the system, but in the banal incorrect operation of the sensor or physical impact on the screen.
Redmi and Poco users experience this behavior less often than other brands, but the MIUI and HyperOS shells have their own characteristics that can provoke random calls. It is important to understand that “autocall” is a broad concept that includes both re-typing the last number and chaotic pressing of numbers when you find the phone in your pocket.
In this article, we will look at all possible causes, from sticking buttons to software conflicts, and provide a step-by-step algorithm for completely fixing the malfunction. You will learn what hidden settings can affect the operation of the touchscreen and how to prevent accidental calls in the future without going to the service center.
The main reasons for spontaneous dialing of numbers
The first step to solving the problem is to understand its nature. If your Xiaomi calls itself, it can be caused by a combination of hardware and software factors. The most common reason is the so-called “pocket set”, when the screen responds to friction of fabric or pressure in the pocket. The touch panel of modern smartphones is highly sensitive, which in some cases plays a cruel joke.
Another common cause is damage to accessories: Cheap headsets or low-quality charging cables can close contacts, sending a signal to the phone controller to press the response or dial button. Also consider the condition of the screen itself: cracks, greasy spots or poor-quality protective glass can lead to phantom presses.
- 📱 Touchscreen malfunction: physical damage or factory defect of the matrix causing chaotic responses.
- 🎧 Problems with the headset: oxidation of contacts or closure in the plug 3.5 mm/USB-C.
- 👖 Pocket mode: insufficient calibration of the proximity sensor or too high sensitivity of the screen.
- 🦠 Malware: rare viruses or advertising modules that initiate paid calls.
⚠️ If the phone starts ringing immediately after the charger or headphones are connected, the problem is 90% in the accessories, not in the smartphone itself.
Setting the sensitivity of the screen and protection against pocket set
The MIUI shell offers a number of tools to minimize false positives, and first of all, you need to check your sensitivity settings, especially if you use a protective glass. The increased sensitivity can cause the phone to respond to the slightest touch through the fabric of the pocket.
Go to the settings menu and find the section that controls the screen. Depending on the firmware version, the path may be different, but the logic remains the same. Turn off options related to glove control or sensitivity if you don't use them all the time. This will help filter random touches.
☑️ Checking screen settings
Also worth noting is the Pocket Mode feature, which in some versions of the firmware may be disabled by default or not work correctly, and activating this feature causes the phone to block input when the proximity sensor is closed, which is a reliable protection against accidental calls.
Diagnostics of physical buttons and headsets
If the problem only manifests itself when the headphones are connected, you need to conduct a thorough diagnosis of the headset. Mechanical pressing of the response button on the wire or closing contacts inside the plug simulates a call command. Try connecting another headset and check if the problem persists.
In the case of wireless TWS-It can be a software failure of the accessory itself. Try resetting the headphones to factory settings. For wired headsets, it often helps to clean the plug contacts with alcohol or replace the adapter if you use it. USB-C 3.5 mm.
| Symptoms. | Probable cause | Method of decision |
|---|---|---|
| Calls with headphones only | Close in the headset | Replacement of headphones or cable |
| Dialing in your pocket | High sensitivity | Turning off gloves |
| Chaotic taps everywhere | Screen damage | Touchscreen diagnosis or replacement |
| Challenges after application installation | Virus or spam | Removal of suspicious software |
⚠️ Warning: Do not use a phone with a damaged screen or a swollen battery, as pressure from inside the case can constantly press the matrix, causing an auto dial-up.
Verification of applications and system services
Sometimes third-party applications that have been granted excessive permissions are the culprits: "memory cleanup" programs, "accelerators" or even some launchers can intercept control of the phone, check the list of recently installed applications and remove those that are suspicious.
Special attention should be paid to the Security app and the antivirus scanners built into the system. Run a full device check. Also check the permissions for the Phone and Contacts app. Make sure they don't have permission to make unconfirmed calls if this option is available on your Android version.
If the problem has occurred after the system update, there may be a bug in the new version of MIUI, in which case it is worth waiting for the patch or, conversely, rolling back to the previous version of the firmware if you use custom methods of installing software. Resetting the settings of the phone's applications can also help.
How to reset the settings of the phone application?
Use of the Engineering Menu for Calibration
For advanced users, there is a way to check the touchscreen through the engineering menu, which is a hidden section that allows you to test the hardware components of a smartphone, and be careful when changing the settings in this menu, as incorrect settings can disrupt the device.
To get into the testing menu, open the Phone app and type a special code. For most Xiaomi devices, it is ##6484##. From the menu that opens, select Touchpanel or Sensor. Follow the on-screen instructions to check for response.
##6484##If the test shows missed taps or, conversely, fixing touches without contact, this is a direct indication that the screen needs to be replaced. Software can not fix a physical defect of the matrix, in which case only repairs in the service center will help.
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Before visiting the service, take a screenshot of the results of the touch screen test - this will help the wizard quickly understand the essence of the problem and avoid prolonged diagnosis.
Radical measures: Resetting and reflashing
If software methods and accessory checks fail, the last resort is a complete data reset, which will delete all user data, so be sure to back up important files in the Mi Cloud cloud or on your computer.
Reset the Recovery Mode. Turn off the phone, press the volume button and power button before the logo appears. Select a language and press "Wipe Data." Once you reboot, the phone will be as new, and if the auto dial was caused by a software conflict, it will disappear.
⚠️ WARNING: A full reset will delete all photos, contacts and apps. make sure you have an up-to-date backup before proceeding with this step.
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If after a complete reset and without installed third-party applications, the auto dial continues, the problem is exclusively hardware in nature and requires replacement of the touchscreen or plume.