Xiaomi doesn't see SIM-Map: All the reasons and what to do in 2026

Xiaomi has stopped defining your SIM-A card, and the status bar says "No network" or "No services"? The problem is found on both budget Redmi and flagship Xiaomi 14 — and it is not always the fault of the operator. In 80% of cases, the fault is fixed on its own, without contacting the service center. First, you need to accurately diagnose the source of the failure.

In this article, we’ll look at all the possible reasons Xiaomi might not see SIM, from the commonplace contamination of contacts to software bugs after the MIUI update. You’ll get step-by-step instructions for each situation, including hidden settings for power users. And if the problem is hardware, learn how to minimize repair costs.

We warn you right away: if the phone stopped seeing SIM after a fall or moisture, self-repair can aggravate the breakdown. In such cases, it is better to immediately contact the specialists. In all others, follow our guide.

1.Verification SIM-Cards and slots: where to start the diagnosis

Before digging deeper, make sure the problem isn’t in the first place. SIM-This step takes 2 minutes, but eliminates 30 percent of the possible causes.

What to do:

• 🔄 Reset the phone. Sometimes the communication module fails with a simple reboot. Press the power button for 10 seconds, select Reboot».
• 📱 Check it out. SIM Put the card in the work unit (for example, a friend's) if it is not identified, the problem is that the card is not used. SIM, Not Xiaomi.
• 🔍 Look at the slot and the contacts. Get the tray for you. SIM, Check: Is there any contamination (dust, fibers, oxidation) is not bent contact springs in the slot, is the card inserted correctly (chip up, bent angle to the left).
• 🛠️ Clear the contacts. SIM and the contacts in the slot with an alcohol napkin or a stripe (no pressure!) Do not use metal objects!

If you don't have a network after this manipulation, move on to the next section, and if the SIM is running on a different phone, but not on your Xiaomi, the problem is definitely the device.

2 Network settings: why the phone doesn't "catch" the operator

Even the serviceable ones. SIM-The card may not work due to incorrect network settings, especially after resetting settings or updating the firmware.

Instructions for setting:

1. Open the Settings. → SIM-maps and mobile networks.
2. Choose your SIM (if there are several).
3. Check it out: 📶 Network mode: should stand 4G/3G/2G (car) or Only 4G (modern-rate). 🔄 Automatic network selection: turn on if disabled. If it doesn't work, select the operator manually (see below). 📞 Calls: Make sure that SIM activated for calls (check next to the number).

If the automatic search does not work:

1. In the same menu, click Network Search.
2. Wait until the scan is completed (it can take up to 2 minutes).
3. Select your operator manually (for example, MTS, Beeline, Tele2).
4. Confirm the connection.

If you don't pick up the signal manually, move on to the next section, and maybe the problem is deeper, the firmware or the hardware.

3. Software failures: When MIUI firmware is to blame

MIUI updates sometimes bring not only new features, but also bugs — especially in the communication module. If the phone stopped seeing SIM immediately after the update, try these methods.

Solutions:

• 🔄 Reset Network Settings: Go to Settings → Memory and reset → Reset network settings. Confirm action. Phone reset. Once turned on, reset your Wi-Fi and mobile connection.

Related: Retreat of the update

1. Open Settings → About the phone → System update.
2. Click on the three dots in the top right corner → Update Package.
3. Select the previous version of the firmware (if available) and install it.

⚠️ Attention: Firmware rollback may cause data loss.Pre-backup through Settings → Additionally. → Backup and reset.

Hand-flashing

If the reset didn't work, try installing firmware manually via Fastboot or Recovery.Instructions for your model, look for on the Xiaomi.eu or 4PDA forums.

If the software methods didn't work, the problem could be IMEI, the phone's unique identifier, and you can read the next section on how to check and restore it.

4.IMEI problems: When a phone "loses" its ID

IMEI is your phone’s “passport” that is tied to a communication module. If it is downed or missing, Xiaomi will not be able to connect to the operator’s network. This is a common problem after failed firmware or reset to factory settings.

How to check for IMEI:

1. On the phone keyboard, type: *#06#.
2. If instead of a 15-digit code, you see Null, Invalid, or an empty field, the IMEI is lost.
3. Check for IMEI compliance on the sticker under the battery (if the case is removable) or on the phone box.

How to restore the IMEI:

• 📱 Using Engineering Mode (for Qualcomm processors): Dial ##4636## → Select Information. Scroll down to IMEI And check the current values. IMEI No, use utilities like Maui. META or SN Write Tool (root rights required).

⚠️ Attention: Incorrect change IMEI This can cause the phone to be locked by the operator. Use only the original values from the box or stickers!

Through Fastboot (for experienced users):

If the IMEI is missing after firmware, try restoring it via the command:

fastboot oem writeimei "IMEI_1" "IMEI_2"

Where IMEI_1 and IMEI_2 — Your original identifiers (for two) SIM).

If the IMEI is still there, but the network is still not catching, the problem may be in the communication module (modem).

5. Hardware breakdowns: when without service can not do

If all the software methods have been tried and Xiaomi still doesn't see the SIM, it's the hardware.

How to diagnose a hardware breakdown:

• 🔍 Visual inspection: Light a flashlight in the slot for SIM — Is there any moisture, rust or mechanical damage.
• 📡 Antenna test: Try calling with your phone in different positions, and if the network only appears at a certain angle, the problem is in the plume or antenna.
• 🔥 Overheating check: If the phone is warming heavily in the top area (where the modem is), it may indicate that the chip is out of order.

If you suspect a hardware breakdown, don't try to disassemble the phone yourself (especially if it's warranty-based). Contact Xiaomi's service center or checked repair. Diagnostics usually don't cost more than 500. ₽.

💡

If the phone falls, sinks or overheats, 90 percent of the problem is hardware. Don't waste your time on software, just get it to the service.

6. Features of Xiaomi models: what you need to know

Some Xiaomi smartphones have unique “pain” associated with SIM recognition.

• 📱 Redmi Note 8/9/10 Series: Frequent problems with the second slot (SIM2). Resolved by flashing or replacing the slot.