No Network on Xiaomi Phone: A Complete Guide to Diagnostics and Troubleshooting

You take out a Xiaomi smartphone to make an urgent call or check your messages, but instead of the usual signal bars, you see the words “No network” or an empty indicator? This problem is familiar to many owners of the brand’s devices, from budget Redmi to flagship Xiaomi 14. The reasons can lie in both trivial settings and hardware malfunctions. In this article, we will analyze all possible scenarios why the network on Xiaomi disappears, and give step-by-step instructions for restoring communication, from simple actions to complex technical manipulations.

It's important to understand that the lack of a network is not always connected to a phone breakdown, and 60 percent of the time, it's solved in 5 minutes using standard methods that don't require any special knowledge. SIM-And the map didn't work -- don't rush to bring the machine to service, and our recommendations will help you identify the true cause and save you money on repairs, and let's start with the obvious and gradually move on to rare but critical cases.

1. Checking the basic settings: SIM-map and flight mode

The first thing to do when you don't have a network is to eliminate software failures and user errors. Start by checking the physical state. SIM-The problem is often the little things that users don't pay attention to.

Open the tray for SIM-Take out the card and inspect it carefully for contact damage, scratches or chips, and check if it is installed correctly. SIM: On some Xiaomi models (for example, Redmi Note 12 Pro)+) The tray has a double socket, and the card may not be fully inserted. Try reinstalling it or temporarily inserting it into another phone to make sure it works.

• 📱 Flight mode: Make sure it's turned off. Sometimes users accidentally activate it through a notification panel or voice assistant.
• 🔄 Reboot: Turn off the phone for 30 seconds and turn it on again.This will reset the temporary errors of the communication module.
• 📶 Manual Network Search: Go to Settings → SIM-maps and mobile networks → Name of your operator → Search for networks and select operator manually.
• 🔧 Settings APN: If the Internet is missing after the update, check the access points (APN). Go to Settings. → SIM-maps and mobile networks → [Yours. SIM] → Access points (APN) Compare the settings with your operator’s official settings.

⚠️ Note: If you are using eSIM (virtual) SIM-map), the problem may be related to her profile. → SIM-maps and mobile networks → eSIM and check activation status. If the error "Profile is inactive" contact the operator to re-activate.

If you don't have a network after you've done this, move on to the next section, and it could be a software conflict or a malfunctioning firmware setting.

2. Reset network settings and update firmware

Failures in the communication module often occur after an update MIUI or installing third-party applications that affect the network (e.g, VPN In such cases, resetting network parameters to factory settings helps.

To perform the reset, go to Settings → The phone. → Resetting settings → Reset your Wi-Fi, mobile network and Bluetooth settings. Once confirmed, the phone will restart and all network settings (including stored Wi-Fi networks and passwords) will be erased. This does not affect personal data (photos, contacts), but may require reconfiguring connections.

Make sure you know the passwords of Wi-Fi networks.

Save important SMS (they may be deleted)

Check the balance. SIM-Cards (sometimes re-activation is required)

Charge your phone at least 50%-->

If the reset didn't work, check the firmware's relevance. MIUI You may have errors that affect the operation of the communication module. → The phone. → System Update. If the update is not available, try installing it manually:

1. Download the latest firmware version for your model from the official Xiaomi website.
2. Rename the file to update.zip and place it in the root folder of the phone.
3. Go to Settings. → The phone. → Updating the system → Threefold (⋮) → Select a firmware file.

⚠️ Note: When you manually install firmware, make sure you download the version for your model (e.g. Redmi Note 11 Pro). 5G Redmi Note 11 Pro — different devices!. Installing the wrong firmware can lead to a breeze (complete inoperability) of the phone.

Regularly as soon as a new version is released

Only if there are problems

Never update.

I don't know how to do that.-->

3. Diagnostics of hardware problems: antenna and communication module

If the software methods failed, the problem may lie in the hardware.Modern Xiaomi smartphones are equipped with multiple antennas to support different ranges (2G/3G/4G/5G), And even one of them gets damaged, and you lose the network:

• 📡 Antenna cable damage: Often occurs after falling or disassembling the phone.
• 🔌 Oxidation of contacts SIM-tray: Moisture or corrosion disrupts the connection between SIM-card-board.
• 🛠️ Radio module malfunction: It's responsible for signal processing. When it fails, the phone doesn't see any network.
• 🔋 Power problems of the communication module: For example, bloated capacitors on the board.

For self-diagnosis, follow the following steps:

1. Check the network indicator in the engineering menu. Enter the phone app code ##4636##, select Phone Information and see Service State status. If it says Out of Service or Emergency Calls Only, the problem is hardware.
2. Test the network in safe mode. Press the power button, hold the power off button until you have a message to go to safe mode, and if it comes on, it's one of the apps that you've installed that's to blame.
3. Check the second job. SIM-Cards (if the phone supports Dual) SIM). If one SIM works and the other doesn’t – a problem in the tray or a particular card.

If the engineering menu (#4636##) IMEI If it is empty or contains zeros, it means that the unique device identifier is lost, and it can only be restored through specialized services (for example, ChimeraTool or Maui). META), But it takes experience and can lead to a phone lock if you make an error.

4.Problems with IMEI and operator lock-in

One of the most insidious reasons for a network being missing is damage or discharge. IMEI — your phone's unique ID, without the correct IMEI The device cannot connect to the operator's network even if all other components are in good working order:

• 🔄 Unsuccessful reflashing (especially through unofficial) ROM).
• 🛠️ Restore from a backup from another device.
• 📱 Reset to factory settings via Fastboot.
• 💻 Connecting to PCs with utilities to change IMEI (for example, SN Write Tool).

To check. IMEI, Type *#06#. If you see Null instead of a 15-digit code, 000000000000000000 or an error, IMEI It's lost. It can be rebuilt in a number of ways:

Another possible reason is operator lockdown, which happens if:

• The phone is listed in the database of stolen devices (check by the IMEI operator's website).
• On the bill. SIM-Cards are subject to restrictions for non-payment.
• The device is tied to another operator (e.g., purchased under a contract).

To exclude the lock, call the operator from another phone and clarify the status of your SIM-If the lock is confirmed, you will need to visit the company office with the documents.

5. Influence of custom firmware and root rights

Users who install informal firmware (e.g. LineageOS, Pixel Experience) or gain root access often face network problems.

• 📦 Lack of proprietary drivers for the communication module in custom assemblies.
• 🔧 Incorrect settings of the radio module after modifications.
• 🛡️ Blocking. IMEI some cores (for example, when using Magisk with a module) IMEI Changer).

If the network is lost after installing custom firmware, follow the following steps:

1. Check firmware compatibility with your model in the forum XDA Developers or 4PDA. For example, the firmware for the Redmi Note 10 Pro (sweet) is not suitable for the Redmi Note 10 Pro 5G (sweetin).
2. Install the right radios. Some firmwares need to be stitched separately through Fastboot: fastboot flash modem. NON-HLOS.bin fastboot flash fsg fsg.mbn
3. Reverse to stock firmware via Mi Flash Tool. download the official ROM For your model and run in Clean All mode.

⚠️ Note: If you use Magisk or other root tools, disable network-related modules (IMEI Changer, Network Speed Tweaks, etc. Some of them conflict with system services. MIUI and cause signal loss.

If after returning to the stock firmware network has not recovered, the problem may be partition damage. modemst1/modemst2. In this case, only a complete re-flashing through the EDL-mode (emergency loading mode).

💡

Before the firmware is via Fastboot or EDL Always check the battery level - it must be at least 50%. interruption of the process due to discharge can lead to irreversible damage to the phone.

Problems with the operator: limitations and technical work

Sometimes the lack of networking is not connected to the phone, but is caused by problems on the operator's side.

• 📡 Technical work at the nearest tower.
• 📵 Restriction of services for non-payment or at the request of law enforcement agencies.
• 🌐 Roaming failures when travelling abroad.
• 📶 Network congestion during rush hour (typical for densely populated areas).

To check if the operator is responsible:

1. Put it in. SIM-If the network is missing, the operator has a problem.
2. Call your provider’s hotline (the numbers are usually listed on the official website).
3. Check the coverage map on the operator’s website – you may be in the weak signal zone.
4. Check the balance and status of services through USSD-MTS: *111# Beeline: *102# MegaFon: *105# Tele2: *107#

If the operator has confirmed the problems on his side, you just have to wait for them to be fixed. Usually, the technical work lasts no more than 2-3 hours. If you block it for non-payment, replenish the bill and restart the phone.

7.Extreme measures: factory reset and service call

If none of the previous methods worked, there are two options: a complete reset of the phone or a service center, starting with a reset.

Hard Reset removes all data from the phone and returns it to the "out of the box" state, which helps if the problem is caused by:

• 🗃️ System File Conflicts After Updates.
• 📲 Viruses or malware that damages network settings.
• 🔄 Failed experiments with firmware.

To perform the discharge:

1. Back up important data via Settings → About Phone → Backup or Mi Cloud.
2. Go to Settings → About Phone → Resetting → Delete all data.
3. Confirm the action and wait for the reboot (can take up to 10 minutes).

⚠️ Note: On some Xiaomi models (e.g, POCO F5 or Redmi K60) After reset, you need to re-link your Mi Account, and if you forget the login details, your phone may be blocked!

If the reset doesn't solve the problem, there's a service center left, and you should contact if:

• 🔧 The phone fell or came into contact with water.
• 📡 Antenna cable or radio module is physically damaged.
• 🔋 The problem is even after the re-flash through EDL.

The cost of repair depends on the fault:

Before the service visit:

• Make a backup copy of the data (if the phone is still turned on).
• Check if the center has official Xiaomi accreditation (this guarantees the use of original parts).
• If the phone is warranty, do not open it yourself - this will cancel the warranty obligations.

💡

If the phone is warranty, first contact the official service center Xiaomi. self-repair or firmware forfeit the right to free service.

8.Prevention of network problems on Xiaomi

To minimize the risk of network loss in the future, follow these guidelines:

• 🔄 Update your firmware regularly, but only through official channels (Settings) → Updating the system).
• 🛡️ Avoid dubious firmware from unofficial sources – they may contain errors in the drivers of the communication module.
• 📱 Don't take it out. SIM-card with the phone on - this can damage the contacts of the tray.
• 🔋 Watch the charge level.At a charge below 15%, some Xiaomi models turn off the communication module to save energy.
• 🌡️ Avoid overheating. If the phone gets too hot, the communication module may temporarily shut down.

It's also useful to know:

• On some models (e.g. Xiaomi) 13T) There's a hidden network testing menu. To get there, type ##36446337## (not working on all devices).
• If you travel frequently, enable automatic network selection in your settings. SIM-Cards will speed up connection to local operators.
• To check the signal quality, use applications such as Network Cell Info Lite (shows the signal level in dBm and information about nearby towers).

Compliance with these rules will help avoid most network problems, but if a failure has already occurred, do not panic - in 90% of cases, it can be fixed by yourself, following the instructions in this article.

FAQ: Frequent questions about network issues on Xiaomi