Set up the Internet on Xiaomi Redmi 9: from Wi-Fi to 4G from scratch

Xiaomi Redmi 9

MediaTek Helio G80

all the ways to set up the Internet

Redmi 9

Many people mistakenly believe that it is enough to connect to the network SIM-card or enter a password from Wi-Fi. In practice, you need to take into account the nuances of firmware MIUI (which can reset APN After the update, to the characteristics of the carriers, we will go through each step in detail, from basic configuration to solving rare errors, for example, when a smartphone "sees" the network, but the pages do not load.

We will focus on three key scenarios:

• 📶 Setting up mobile internet (2G/3G/4G) through APN — with current parameters for MTS, Beeline, MegaFon and Tele2.
• 📡 Connecting to Wi-Fi and fixing authorization issues, IP-addresses and routers.
• ⚡ Speed optimization – from VoLTE enabled to network mode change.

If you have just bought a Redmi 9 or are faced with a sudden lack of Internet, this guide will help you to return the connection without contacting the service center.

1. Preparation of the smartphone for setting up the Internet

Before you start setting up, make sure your Xiaomi Redmi 9 is ready to work with networks.

First, remove the tray for SIM-cards (use a paper clip from the kit) and make sure the card is installed correctly:

• 📱 Nano-SIM must be inserted into the slot SIM 1 SIM 2 if you use two cards).
• 🔄 The contacts of the card should be facing down, and the beveled angle should coincide with the mark on the tray.
• 🚫 Do not use micro-SIM adapters – this can cause damage to the slot.

Check out the MIUI version:

1. Go to Settings. → The phone.
2. See the line MIUI Version. Current for 2026 - MIUI 14 (or later).
3. If the version is outdated, update the software through Settings → System Update.

⚠️ Attention: On versions MIUI below 12.5 may not support modern communication standards (e.g., VoLTE or 4G+). Upgrade is mandatory if you use operators with new rates.

Also make sure that:

• 🔋 Battery level – at least 20% (setting the network in the background consumes energy).
• 📶 The status bar shows the network indicator (even without the Internet). If it is not, the problem may be in the network. SIM-map.

2. Mobile Internet Configuration (APN)

If, after insertion, SIM-Mobile Internet card does not work automatically, most likely, manual setting of the access point is required (APN). This parameter determines how the smartphone connects to the operator’s network. On Redmi 9, the process takes no more than 5 minutes.

To add APN:

1. Go to Settings. → SIM-maps and mobile networks.
2. Choose yours. SIM-map, SIM 1).
3. Press Access Points (APN) → Add an Access Point.
4. Fill in the fields according to your operator’s parameters (see the table below).
5. Save the settings and restart the smartphone.

After saving the APN:

• Select the profile created in the list of access points.
• Activate the Mobile Data option at the top of the menu.
• Wait for the 4G, 3G or H+ icon to appear in the status bar.

⚠️ Note: If after setting up APN Check your account balance – some operators block traffic with zero or negative balance, even if you have unlimited rates.

The right one. SIM-map|

APN name entered without typos |

Authentication Type – PAP (not CHAP) |

Protocol APN meets the requirements of the operator|

Mobile data is included in the notification panel-->

3. Wi-Fi connection and error elimination

Setting up Wi-Fi on Xiaomi Redmi 9 usually goes automatically, but sometimes there are connection problems.

Basic connection:

If the network is not connected, check:

• 🔒 Password Correctness – Redmi 9 displays dots when entering, but you can click on the eye icon to see the characters.

Common mistakes and decisions:

If your smartphone is connected to Wi-Fi but the speed is extremely low (for example, less than 1 Mbps), try:

• 📶 Switch to a 2.4 GHz channel with less congestion (use applications like WiFi Analyzer).
• 🔌 Disable the Smart Wi-Fi Switching function in Settings → Wi-Fi → Additionally (it can automatically switch to mobile data).
• 🔄 Reboot your router and smartphone at the same time.

💡

If Wi-Fi is permanently off, try turning off the battery saving function for Wi-Fi in Settings → Battery and Performance → Battery consumption management applications.

4. Optimization of mobile Internet speed

Even if the Internet on Redmi 9 is working, it can be far from the maximum speed, due to network settings, firmware or hardware limitations.

1. Enable VoLTE and 4G+

• Go to Settings. → SIM-maps and mobile networks → [Yours. SIM] → Enable VoLTE.
• Activate the Enhanced 4G (LTE+) option if available.
• ⚠️ Attention: On some firmware MIUI These options are hidden. To unlock them, type in the dialer code ##4636##, Select Phone Information and set the preferred network type to LTE/UMTS auto.

2. Change network mode

By default, Redmi 9 can use 3G to save power. To force 4G to activate:

1. Go to Settings. → SIM-maps and mobile networks → [Yours. SIM] → Preferred type of network.
2. Choose 4G (preferably) or 4G only.

3. Turn off background activity

Many apps (especially social media and instant messengers) consume traffic in the background, slowing down the download speed, to limit them:

• Go to Settings → Applications → Application Management.
• Select an app (such as Facebook or TikTok).
• Turn off Background Data Transfer and Auto Start.

4. Check the operator's coverage

If the speed remains low, there may be a problem in the coverage area.

• MTS: map.mts.ru
• Beeline: beeline.ru/coverage
• MegaFon: map.megafon.ru

💡

On Xiaomi Redmi 9, the top speed of 4G is limited to 150 Mbps due to the hardware features of the Helio G80 chip. If the speed is below 50 Mbps, check the settings or contact the operator.

5. Solving rare Internet problems

Sometimes the Internet on Redmi 9 goes missing for no apparent reason or is not running smoothly.

1. Network resetting

If none of the methods worked, reset the network parameters:

1. Go to Settings → System and device → Resetting.
2. Select Network Reset (not to be confused with a full reset!).
3. Confirm the action and restart the smartphone.

⚠️ Warning: This will remove all saved Wi-Fi networks and passwords, as well as settings APN. After resetting, they will have to be reconfigured.

2. IMEI verification

If the smartphone is not catching the network at all (there is not even a signal), the IMEI may have gone off.

1. Enter the dialer *#06#.
2. Compare the IMEI displayed to what is shown on the box or under the battery (if removed).
3. If the IMEI is missing or incorrect, it must be restored through the Engineering Mode (instruction below).

3. Firmware problems

Some custom firmware (such as LineageOS or Pixel Experience) may not have drivers for the communication module.

• 🔄 Get back to the official one. MIUI via Fastboot.
• 📥 Install a patch for the modem (search the forums) 4PDA or XDA-Developers).

6. Useful applications for network diagnostics

If standard methods don’t work, use third-party utilities to analyze the connection, which will help you identify the problem, whether it’s a weak signal, high ping or traffic blocking.

Top.-3 Applications for Xiaomi Redmi 9:

How to use NetMonster for diagnosis:

Example of Ping & DNS use:

7. Frequent questions and answers