Mobile Internet on Xiaomi Redmi smartphones can suddenly stop working for a dozen reasons - from banal forgetfulness (data turned off) to complex technical failures (incorrect settings) APN or problems with SIM-If you see the H icon,+, 3G Do not rush to carry the phone to the service: in 90% of cases, the problem can be solved independently in 2-5 minutes.
This article will help you understand how to turn on mobile Internet on any Redmi β from the budget Redmi 9A to the flagship Redmi Note 13 Pro+. We will look at all possible scenarios, from basic settings to hidden MIUI features that are not written in the official instructions.
Checking basic settings: Is mobile data enabled?
Start with the obvious: make sure that mobile internet isn't turned off by accident. In MIUI, there are two ways to control data transfers -- through the notification panel and the settings menu. Often users turn off the internet through fast buttons without even noticing it.
To check:
- π± Swipe down from the top edge of the screen to open the notification bar.
- π Find the Mobile Data icon (usually two up-down arrows or an antenna) if it's gray, tap it to turn it on.
- π οΈ If the icon is active but the internet is not working, go to Settings β SIM-maps and mobile networks β Mobile data and make sure the slider is turned on.
Some Redmi models (like the Note 10 Pro or Redmi 12) may have a separate 4G/5G switch.
- Open the Settings. β SIM-maps and mobile networks.
- Choose yours. SIM-card (if two of them).
- Click Network Type and install 4G (recommended) or 5G (if supported).
β οΈ Note: If you have a two-sim Redmi, make sure that mobile data is enabled for the correct SIM-Often users activate the Internet on the second SIM, which does not support data transmission (e.g. only for calls).
APN hotspot setting: why doesnβt the internet work even with data on?
If mobile data is enabled but pages are not loaded, the problem may lie in the wrong settings. APN (Access Point Name: This is the address where the phone connects to the Internet of the operator. APN It is lost (for example, after updating) MIUI shift SIM-Maps, the Internet will not work.
To set up APN on Xiaomi Redmi:
- Go to Settings. β SIM-maps and mobile networks.
- Choose yours. SIM-map β Access points (APN).
- If you have saved profiles, select the one that matches your operator (for example, Internet.beeline.ru for Beeline). If there are no profiles, click Add Access Point.
Below is a table with APN settings for popular Russian operators (current for 2026):
| Operator. | APN name | APN | Type APN |
|---|---|---|---|
| MTS | mts | internet.mts.ru | default,supl |
| Beeline | Beeline Internet | internet.beeline.ru | default,supl,mms |
| MegaFon | Megafon | internet | default,supl |
| Tele2. | Tele2 Internet | internet.tele2.ru | default,supl |
| iota | Yota | internet.yota | default,supl,dun |
After entering the settings, be sure to save the profile and restart the phone. APN not applicable, try creating a new profile with the same name, but add a number at the end (e.g, internet.beeline.ru_1).
The profile name is the same as the operator |
APN is introduced without errors (registration is important!)|
Type APN contains "default" |
The fields "Username" and "Password" are empty (unless the operator requires authorization) |
Profile selected as active (tick next to name)-->
Problems with SIM-Why the phone doesnβt catch the network?
If the mobile Internet is not working even after setting up APN, The problem may be in the SIM-Here are the typical symptoms:
- πΆ Network indicator shows No service or only emergency calls.
- π The phone is constantly βlooking for the networkβ or switching between the two. 2G and 3G.
- π« In the settings SIM-No card option is available Mobile data.
What to do:
- Restart the phone. Sometimes the modem malfunction is fixed by simply restarting it.
- Remove and insert. SIM-Dust or loose contact may cause problems. SIM-Old card (over 5 years), replace it with a new one - modern Redmi works better with nano-SIM.
- If you have a two-sim Redmi, try inserting the SIM into another slot (e.g. from slot 1 to slot 2).Some models restrict 4G to only the first slot.
- Update the operator profile. Go to Settings. β SIM-maps and mobile networks β [Yours. SIM] β Update profile (not available to all operators).
β οΈ Note: Redmi Note 11 and later has a bug where the phone can βforgetβ network settings after the update MIUI. If the problem appeared after the update - try resetting the network settings in Settings β System system β Resetting settings β Resetting Wi-Fi, Mobile Network and Bluetooth.
How to check if yours is supported SIM-map 4G/5G?
Hidden MIUI settings: High Speed Mode and Network Priority
Xiaomi hides some useful options in the engineering menu or deep in the settings. For example, on Redmi with Qualcomm Snapdragon processors (for example, Redmi Note 12 Pro+ or Redmi K60), you can manually prioritize the network to speed up the Internet.
How to turn on the high speed mode:
- Open the phone app and dial the combination: ##4636##
- In the menu that opens, select Phone Information.
- Scroll down to the Set your preferred network type.
- Choose LTE only (4G only) or NR/LTE (5G+4G) if your Redmi supports the fifth generation.
Another useful feature is the forced use of 4G instead of automatically switching to 3G/2G.
- π Go to Settings. β SIM-maps and mobile networks β [Yours. SIM] β Type of network.
- π§ Select Only. LTE (If there is no such option, use it. 4G/3G/2G (motor-car)).
π‘
If the Internet is lost after the change in the type of network, return the settings to the Auto and restart the phone. Some carriers (for example, Tele2) block access to LTE if you manually select 4G Only without an active service.
Diagnostics of malfunctions: when to contact the service?
If none of these methods worked, the problem could be hardware, and here are the signs that the phone needs repair:
- π The modem is not responding. SIM-The card does not have the option Mobile data, or when it is enabled, nothing happens.
- π‘ The antenna is damaged. The phone does not catch the network even in areas with good coverage (check on another device).
- π₯ The phone warms up strongly in the upper part (where the modem is located), and the Internet shuts down after 5-10 minutes of use.
- π οΈ Fall or moisture: If the phone falls or comes into contact with water before the problem, it could get damaged. RF-chip (responsible for communication).
Before visiting the service, perform a diagnosis:
- Check IMEI. Dial *#06# β if a Null or error is displayed instead of a 15-digit code, the modem is faulty.
- Network test. Install Network Signal Guru (available on Google Play) and check signal strength. If the RSRP is below -110 dBm, the problem is the coverage, not the phone.
- Reset to factory. If the phone is not warranty, try a full reset to Settings β About Phone β Reset. This will delete all data, but in 30% of cases restores the modem after software failures.
β οΈ Note: Redmi with MediaTek processors (e.g. Redmi) 9A or Redmi 10C) There is a common bug where the modem freezes after the firmware is installed. MIUI, Try to revert to the previous version via Fastboot.
Frequent Mistakes and How to Avoid Them
Many Xiaomi Redmi users themselves create problems with the mobile Internet without knowing it.-5 Mistakes and how to avoid them:
- Turning off the background. MIUI There is a function Data Background Limitation (c Settings) β SIM-maps and mobile networks β Data transfer: If enabled, applications will not be updated in the background and some services (e.g. Google Play) may not work properly.
- Traffic savings: Traffic savings mode (in the same settings) limits Internet speed. Turn it off if you want maximum performance.
- The wrong network choice: If you manually select 3G Only, the phone won't connect to 4G, even if the network is available.
- Conflict of the two SIM-On two-sim Redmi sometimes there is a conflict if both of them SIM They're trying to use mobile data. SIM.
- Older versions of MIUI (below 13) have bugs that work 4G on some carriers. Update your phone in Settings β About Phone β System Update.
1. operator network load (ask your friends with the same operator).
2. tariff limits (high-speed traffic may have been exhausted).
3. Background apps (such as Google Play downloads or updates) MIUI They can eat up speed).-->