Why Xiaomi Challenges Are Dropped: A Complete Guide to Resolving the Problem

Resetting a call on Xiaomi smartphones is one of the most annoying problems users face. You try to make a call or take an important call, but the connection suddenly breaks down after a few seconds. The reasons can be rooted in both software failures of MIUI and hardware problems. In this article, we will analyze all possible scenarios, from banal network errors to hidden settings that even experienced owners of Redmi, POCO or Mi do not know about.

The peculiarity of the problem is that it manifests itself in different ways: someone resets only incoming calls, others outgoing, and others face a communication break after a fixed time (for example, exactly through the time of the first call). 30 We've put together relevant solutions for 2026 Including methods for new HyperOS models and older devices on the MIUI 12-14. If you have tried to reboot your phone or change it SIM-Do not rush to carry the device to the service: 80% In some cases, the problem can be solved independently.

1. Check the basic network settings

Start with the basic steps that even advanced users often ignore. Incorrect network settings are the most common reason for a Xiaomi call-down.

• 📶 Network mode: if only selected 4G (LTE), a your region has a weak signal, the phone may lose communication when switching to 3G. Try installing the car (2G/3G/4G) In Settings → SIM-maps and mobile networks → Network mode.
• 🔄 Automatic network selection: sometimes the operator manually links the device to an unstable tower. Disable and re-enable the Automatic Network Search option in the same menu.
• 📱 Priority SIM-Cards: dual-SIM models (Redmi Note 12 Pro)+, POCO X5 Pro) check if the cards conflict. Go to Settings → SIM-map → Management SIM-Disable the second card during the test.

If the problem persists after the changes, move to the next step. On models with HyperOS (for example, Xiaomi 14), the path to network settings may be different: look for the Mobile Network → Additional.

⚠️ Attention: On some firmware MIUI Global requires a reboot after the network changes.

Diagnostics SIM-card-slot

Physical injuries SIM-The second most common cause of call failure is a card or slot contacts, and even a microscopic scratch on a chip can cause a loss of signal:

1. Extract. SIM-The chip should be free of scuffs, chips or oxidation (green/white coating).
2. Check the slot contacts on your phone – they should be smooth, without contamination. If necessary, wipe them gently with a smoother (no pressing!).
3. Try inserting. SIM-card to another slot (if the phone supports dual-SIM) or to another device.

If the card works on a different phone, the problem is your Xiaomi. If not, contact the operator for a replacement. Newer models (Xiaomi 13T, Redmi K60) use nano-SIMs, and even a slight mismatch in size can cause crashes.

3. Conflicts with VoLTE and VoWiFi

VoLTE (voice over 4G) and VoWiFi (wi-fi calls) are often a source of problems at Xiaomi. Despite promises of stability, many Redmi Note 11, POCO F4 and other models face resets because of them.

• 📞 If the calls are dropped exactly through 20-30 Seconds, it's almost certainly VoLTE's fault. → SIM-maps and mobile networks → [Yours. SIM] → VoLTE.
• 📶 If the problem only occurs when connecting to Wi-Fi, turn off VoWiFi in the same menu (Option Calls over Wi-Fi).
• 🔄 On some firmware (MIUI 13 for Xiaomi 11T) After disabling VoLTE, a reboot is required.

On HyperOS models (e.g. Xiaomi 14 Pro), the path to VoLTE settings has changed: now it’s Settings → Connections → Mobile Network → Additional → Calls. If VoLTE’s connectivity has deteriorated since the VoLTE shutdown, try an alternative method:

Turn on 30 seconds flight mode | Turn off VoLTE in settings |Reset phone | Turn on VoLTE back in 5 minutes | Check calls-->

⚠️ Note: For some carriers (e.g., SberMobile or virtual operators), VoLTE may not work smoothly. Check with support if the technology is supported at your tariff.

4. Software failures: cache, firmware, applications

If hardware problems are ruled out, the software is to blame. On Xiaomi, call failures often cause:

• 🗑️ Clogged cache of the Telephony module (responsible for calls). Cleanup: Settings → Annexes → Application management → Three dots (menu) → Show system-based → Phone. → Warehouse → Clear the cache.
• 📱 Outdated firmware. Check the updates in Settings → The phone. → System Update: On HyperOS, critical fixes for the communication module may come separately from major updates.
• 🛠️ Third-party applications, especially "optimizers" like DU Speed Booster or Clean Master. They can block system processes. Check Settings. → Battery → Power saving mode – there should be no restrictions for Phone and Google Play Services.

For advanced users, if the call reset started after the firmware update, try to roll back to the previous version via Fastboot. For instructions for your model, look at the 4PDA or Xiaomi Community forum. For example, this command will suit the Redmi Note 10 Pro:

fastboot flash recovery twrp.img


fastboot reboot recovery

But remember: rolling back firmware resets all data! Pre-back up through Settings → Additional → Backup and Reset.

Hardware malfunctions: antenna, communication module

If all software methods have been tried and the calls are still reset, the problem may be in the hardware.

• 📡 Damaged antenna (especially after falls or moisture). On Xiaomi, antennas are located around the perimeter of the body - check if there are cracks or swelling.
• 🔌 Faulty communication module (e.g. Qualcomm Snapdragon) X55 Mi 10 or MediaTek Dimensity 1200 POCO F3 GT). Diagnosed only at the service center.
• 🔋 Battery worn out at low voltage (below) 3.5V) The phone can shut down power-intensive modules, including communications.

You can only check the status of the antenna:

1. Call another phone and wrap your Xiaomi around your palm in the upper left corner (where the main antenna is usually located).
2. If the signal is lost or the call is reset, the antenna is damaged.
3. Repeat the test by touching the bottom of the body (second antenna).

The average cost of repairing an antenna on Xiaomi is 1500-3000 rubles, replacing a communication module is 4000-8000 rubles (depending on the model).

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If the phone fell into the water, even if it had been months, the cause of the call-off could be corrosion on the board, in which case only a full UV cleaning at the service center would help.

6.Problems on the operator side

Sometimes it's not the phone that's the fault, it's the mobile operator, and this is especially true if:

• The problem arose after the change of the tariff or operator.
• The call is reset exactly 1 minute (typical billing error).
• Resetting occurs only when calling the numbers of other operators.

What to do:

1. Call support (e.g. *111# for MTS, *555# for Beeline) and report the problem, and check if your calls are blocked due to debts or suspicious activity.
2. Ask to reset the operator-side settings. USSD-command, *123*0000# body2).
3. If you use a virtual operator (for example, Tinkoff Mobile), try temporarily switching to the main one (MTS, Beeline) - virtual operators often have problems with routing calls.

On forums, Xiaomi users often complain about conflicts with the operators "SberMobile" and "Yota". If you are their client, try inserting SIM-map of another operator for the test.

7. Specific solutions for different models

Some Xiaomi models have unique call-refuse bugs, and the most common ones are:

There is a separate bug for Xiaomi 14 and other HyperOS devices: if the Fraud Protection option is enabled in the security settings, it can block incoming calls from unknown numbers. Disable it in Settings → Privacy → Fraud Protection.

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If your model is not listed in the table, but the problem manifests itself after a specific action (for example, when turning on the hands-free), try to play the bug and record the steps.

Extreme measures: dumping and service centre

If nothing has worked, radical methods remain:

• 🔄 Reset to factory settings. Be sure to back up before you do! Path: Settings → The phone. → Backup and reset → Resetting. HyperOS added an additional confirmation step through a pattern lock.
• 🛠️ Fastboot flashing, relevant if the reset didn't work. 4PDA For example, for your model, for the Redmi Note. 12 This is the command: fastboot flash boot boot.img fastboot flash system system.img
• 🏥 If you have a warranty phone, take it to the official Xiaomi service center — 500-1000 Without a guarantee, look for proven workshops with good reviews.

Before the service visit:

1. Record the call reset process on video (this will help the wizard diagnose the problem faster).
2. Check if you changed the firmware or received root rights – this may void the warranty.
3. If your phone falls or gets wet, report it right away – it affects the cost of repairs.

⚠️ Note: On HyperOS models, resetting may require you to link to your Xiaomi account. Make sure you remember your username and password, or you risk blocking your device!

FAQ: Frequent questions about Xiaomi call-drop