You turned on Xiaomi smartphone, and instead of the usual strips of the network on the screen flaunts the inscription “Only emergency calls”? The situation is familiar to many owners of devices of the brand – from budget Redmi to flagship Xiaomi 14. SIM-The main thing is not to panic: in 90% of cases, the malfunction is eliminated without going to the service center.
In this article, we will discuss all possible causes - from banal (incorrectly inserted) SIM-The map is up to the technical (failure in the communication module) and for each case, we will give step-by-step instructions with illustrations and warnings about typical errors. And if you have already tried standard methods (reboot, reset), but nothing helped – at the end of the article you will find exclusive solutions for complex cases, including working with the engineering menu and manual editing of configuration files.
Before you start your diagnosis, answer two questions: 1. The problem appeared after the update. MIUI Or mechanical effects (falling, ingressing moisture)? 2. SIM-The card works on other devices?
Answering these questions will narrow down the possible causes by 50%.
1.Verification SIM-Cards and slots - where to start
To begin with, the problem is that in 30% of cases, physical contact is the problem. SIM-Even if you are sure that the card is inserted correctly, follow the following steps:
- 🔄 Reinstall. SIM-card: remove the tray, check the card for scratches or contamination. wipe the contacts with a dry wipe (do not use alcohol!) insert the card back, making sure it fits tightly to the slot contacts.
- 📱 Check the slot: inspect the connector for damage or foreign objects. If you see bent contacts, do not try to straighten them yourself (risk of damaging the fee).
- 🔧 Testing in another device: insert SIM If there is no network, there is a problem with the operator or with the card itself (possibly blocked for non-payment).
Pay special attention to hybrid slots (for example, in Redmi Note 12), where the second slot is combined with MicroSD. If you recently installed a memory card, try to remove it - sometimes contacts close.
⚠️ Note: Do not use metal objects to remove the tray SIM-If the tray is jammed, contact the service.
2. Network settings: what could have gone wrong
If SIM-The map is fine, but Xiaomi still shows "Emergency Calls Only," check the network settings. MIUI or reset to factory settings when communication parameters are reset to default.
Open the Settings. → SIM-Maps and mobile networks and follow the following steps:
- 📡 Network mode: select 4G (preferably 3G. If it's worth it 2G, Smartphones may not catch modern networks.
- 🔄 Automatic network selection: disable it and select the operator manually. Sometimes automatic search is "hinged" on non-existent towers.
- 📶 Access points (APN): press Access Points (APN) → Reset to default values. If that didn't work, add APN manually (you can take the settings on your operator’s website).
For models with VoLTE support (Xiaomi) 13T, Redmi Note 13 Pro+) Check if this feature is included in the Settings → SIM-map → Challenge 4G. Without VoLTE, communication may not work properly in some regions.
| Operator. | APN name | APN | Type APN |
|---|---|---|---|
| MTS | mts | internet.mts.ru | default,supl,mms |
| Beeline | beeline internet | internet.beeline.ru | default,supl |
| MegaFon | Megafon | internet | default,supl,mms |
| Tele2. | tele2 internet | internet.tele2.ru | default,supl |
💡
If the APN reset is not available, reboot your phone in flight mode (turn on → wait 30 seconds → turn off) and this will force you to update your network registration.
3. Software failures: from reboot to reset
If the hardware problems and the settings are not at all, the software is at fault.
- Safe Mode Reboot: Press the power button → Hold Down → Select Safe Mode. If this mode is in, it's the third-party app (most often a virus or network optimizer) that's to blame.
- Cache Cleanup: Go to Settings → Applications → Application Management → Three points (menu) → Show system. Find Phone, SIM cards and networks, Settings and clear the cache for everyone.
- Network settings reset: In Settings → About Phone → Settings Reset → Network settings reset. This will delete all stored Wi-Fi and passwords, but often solves the mobile phone problem.
If nothing works, you'll have to do a hard reset, save the data beforehand, because all files will be deleted.
Settings → About phone → Reset settings → Delete all data⚠️ Note: On models with a locked bootloader (Redmi for China, some of them are available for use in the market). POCO) Reset may result in a requirement to enter a Mi Account. Make sure to remember the username and password!
Backup to Mi Cloud|Save contacts to Google account |Write down the phone's IMEI (on the box or under the battery)|Make sure the battery is >50%-->
4.Firmware problems: rollback and manual installation
Mobile network failures often occur after a MIUI update, especially on custom or bat versions of firmware. If the problem occurs after an update, try:
- 🔙 Reverse to the previous version: download stable firmware for your model from the official Xiaomi website. Use the Mi Flash Tool for installation (instruction below).
- 🛠️ Install firmware through Recovery: Download ZIP-file and rename it to update.zip. Put it in the root of the internal memory. Press Volume up. + Power to log in to Recovery. select Install update.zip → Reboot.