You pick up your Xiaomi, you try to make a call, but nothing happens? Or incoming calls just don't come in, even though you're not. SIM-Is the card active? This problem is familiar to many smartphone owners. MIUI โ From budget Redmis to flagship Xiaomi 14s, the reasons may lie in incorrect network settings, software failure or even hardware malfunctions.
In this article, we will discuss all possible ways to enable calls on Xiaomi devices, from basic checks to hidden settings of the engineering menu.
- ๐ Check activity SIM-maps and the correctness of its installation
- ๐ถ Set up mobile network settings for stable calls
- ๐ Reset network settings without data loss
- ๐ ๏ธ Use the Engineering Menu to diagnose problems
- ๐ฑ Update the firmware if the problem is caused by an error MIUI
Important: if after all the manipulations the calls did not work, the problem may be on the side of the operator - we will also discuss this at the end of the article.
1.Verification SIM-card-slots
The first thing to do is make sure that SIM-The card is correctly installed and recognized by the system, and even if you haven't removed the tray recently, the contacts may have oxidized or moved.
How to check:
- Turn off your smartphone and remove the tray for SIM-card using a paper clip (the hole is usually located on the upper or lateral face).
- Check the map for damage: scratches on the chip or chips on the edges can block communication.
- Blow the dust slot and gently insert the card back, making sure it lies flat.
- Turn on the phone and wait for the network icon to appear in the status bar.
If, after reinstallation, SIM-Call cards are down:
- ๐ฑ Try inserting the card into another smartphone โ if it is not also determined there, the problem is in the very same smartphone. SIM (Contact the operator for a replacement).
- ๐ง Check if the slot is not contaminated: sometimes dust or moisture interfere with contact.
- ๐ Restart the device โ sometimes the system does not recognize the card after a hot reboot.
What to do if your smartphone doesnโt see SIM-map?
2. setting up the parameters of the mobile network
If SIM-The card is recognized, but the calls don't go away, and the problem may be that the network settings are wrong. 4G (VoLTE, but your carrier does not support this technology for voice communications.
How to set up:
- Go to Settings. โ SIM-maps and mobile networks.
- Choose yours. SIM-card (if there are several).
- Click Network Type and install: ๐ถ 4G (preferably if the operator supports VoLTE (voices through the 4G). ๐ถ 3G โ If the VoLTE is not working or you are in a weak area 4G. ๐ถ 2G โ If other options are not available (there will be calls, but without the Internet).
Challenges through VoLTE
If no calls are received after the changes, check:
- ๐ Flight mode - it must be turned off (check in the notification curtain).
- ๐ต Blacklist โ your number may be locked in settings (Settings) โ Number locking).
- ๐ Do not disturb โ the mode can block incoming calls (Settings) โ Sound and vibration โ Don't disturb).
SIM-map is recognized in the settings
Flight mode is off.
Network type is installed on 3G/4G (not only 2G)
VoLTE activated (if supported)
Blacklist is empty
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3. Resetting network settings
If manipulation with SIM-The map and the network didn't work, and the next step is to reset the network settings, which will delete all the stored Wi-Fi networks, passwords and mobile Internet settings, but will not affect personal data.
How to reset:
- Open Settings โ About the phone โ Reset settings.
- Select Network Reset (not to be confused with a full reset!).
- Confirm the action and wait for the reboot.
After discharge:
- ๐ The smartphone will automatically connect to the mobile network (can take 1-2 minutes).
- ๐ถ Check if the network icon appears in the status bar.
- ๐ Try to make a test call (for example, to the number 112 โ it works even without the help of the phone). SIM-map).
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If after resetting the network did not appear, try to manually select the operator: go to Settings โ SIM-maps and mobile networks โ Select the network and turn off automatic search, then select your carrier manually.
4. IMEI check and engineering menu
If the calls still don't work, the problem may be related to the loss of IMEI, the device's unique identifier, which often occurs after a failed firmware or reset.
How to check for IMEI:
- Type *#06# on the keyboard - a window with one or two numbers should appear IMEI (depending SIM-map).
- If zeros or an error are displayed instead of numbers, the IMEI is reset.
How to restore IMEI (only for power users!)
- ๐ง Use the Engineering Menu: dial ##4636## and select Phone Information.
- ๐ฑ Check status. IMEI And networks. IMEI SV It is 0, and you will need to recover. MTK Engineering Mode (for MediaTek processors) or QPST (for Qualcomm).
- โ ๏ธ Attention: Incorrect recovery IMEI If you're not sure, you can call the service center.
For Qualcomm Snapdragon devices, you can try to restore IMEI via QPST:
1. Install Qualcomm and QPST drivers on your PC.
2. Connect your phone in Diag mode (some models need to dial ##717717##).
3.In QPST, select a port and restore the IMEI through the EFS Explorer tab.๐ก
If the IMEI resets after the MIUI update, try rolling back to the previous firmware version, often solving the problem without manual restoration.
5. Update firmware and reset to factory settings
If all previous steps have failed, the problem may be firmware errors, especially for devices that have not been updated in a long time or have been stitched with custom builds.
How to update MIUI:
- Go to Settings โ About the phone โ System update.
- Click Check Updates and install the latest version (if available).
- If the update does not find, download the firmware for your model from the official Xiaomi website and install through System Update โ Three dots โ Select a firmware file.
If the update didn't work, the last option is a full reset, which will delete all the data, so back up first:
- ๐ฑ Go to Settings. โ The phone. โ Backup and reset.
- ๐ Select Reset and confirm the action.
- ๐ After restarting, set your phone as new and check the calls.
If the call does not work after the call is reset, the problem is likely hardware (a communication module or antenna is damaged), in which case only the service center will help.
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Before reset, check if Find My Device is activated (in Mi Account settings). After reset, you may need to enter a password from your Xiaomi account!
6.Problems on the operator side
Sometimes the reason for not calling is not the phone, but the mobile operator.
- ๐ต Lockdown SIM-card.
- ๐ Technical work at the station.
- ๐ก Error in service settings (e.g. not activated packet minutes).
- ๐ Incompatibility SIM-Network cards (e.g. old card does not support VoLTE).
How to check:
- Put it in. SIM-card to another phone - if there is also no communication there, the operator has a problem.
- Call your operatorโs hotline (numbers are usually listed on the site) and check the status of the services.
- Try to deposit the account โ sometimes the lock is removed automatically after payment.
If the operator confirmed that everything is fine on their part, but calls to Xiaomi still do not work, go back to the phone settings or contact the service.
7. Frequent errors and their solutions
The table below summarizes the typical errors associated with Xiaomi calls and how to fix them:
| Symptoms. | Possible cause | Decision |
|---|---|---|
| No network badge, but SIM-map recognized | Failure of the communication module or antenna | Restart your phone, check your IMEI, contact the service |
| Incoming calls are not coming, outgoing calls are working. | Do Not Disturb or Blacklist Activated | Check the sound settings and number locks |
| Calls stop in a few seconds. | VoLTE problems or a weak 4G signal | Turn off VoLTE or switch to 3G |
| No sound when calling (the interlocutor hears, you do not) | Failure of speaker or microphone | Check the volume, test the speaker to record the voice |
| The phone doesnโt ring, but SMS is coming. | Network registration error for voice services | Reset your network settings or contact the operator |
If your problem isnโt described in the table, try searching for a solution on the 4PDA or Mi Community forums, where specific Xiaomi model bugs are often discussed.
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Before visiting the service center, check if the warranty period on your device has expired. If the smartphone is warranty, do not disassemble it yourself - this will void the warranty!