How to improve the Internet on Xiaomi Redmi Note 7: from basic settings to hidden features MIUI

Xiaomi Redmi Note 7, released in 2019, still remains a popular budget smartphone with a good “iron” – Snapdragon 660 processor and support for modern networks 4G LTE Cat.12. But many users face problems, such as slow mobile internet, wifi breaks, browser pages hanging up or lags in online games, not only because of hardware limitations, but also because of incorrect settings. MIUI, background processes or even physical interference.

In this article, we’ll break down 12 proven ways to improve the speed of the Internet on the Redmi Note 7 – from elementary (for example, changing the network mode) to advanced (manual settings). APN We will focus on a unique problem of this model: poor reception of the signal at Band 20 (800 MHz) frequencies, which are actively used by Russian operators. You’ll also learn how to diagnose bottlenecks with hidden engineering menus and third-party apps.

1. Checking the current speed and diagnosing problems

Before optimizing, you need to understand exactly where your Internet is slowing down. On the Redmi Note 7, the speed can drop due to:

• 📶 Weak signal (especially in basements or on the outskirts of cities).
• 🔄 Overloading of the operator's network (peak hours: 18:00-23:00).
• 📱 Background apps that eat up traffic (e.g. auto-update games).
• 🔧 Incorrect settings APN network mode.

For diagnosis, use:

• 📊 Speedtest.net (application or site) – measures download/return speed and ping.
• 📡 NetMonster (from Google Play) – shows Band, RSRP (signal level) and SINR (linkage).
• 🔍 Engineering menu (code ##4636##) - Network Information section.

🔹 Critical indicators for Redmi Note 7:

⚠️ Note: If the engineering menu displays Band: Unknown or Service: Out of Service, the problem may be in the SIM-A card or a smartphone antenna. Try restarting your phone or inserting the card into another device.

2. Optimizing the mobile Internet (4G/LTE)

Redmi Note 7 is supported by 4G LTE Cat.12 with theoretical speeds up to 600 Mbps, but in practice users rarely get more than 50-70 Mbps.

🔹 Step 1: Selecting a Priority Network Mode

Go to Settings. → SIM-maps and mobile networks → [Yours. SIM] → Preferred type of network and select:

• 📶 4G (preferably)/3G/2G — Balance of speed and stability.
• 🚀 Only 4G — maximum speed, but there may be breaks in areas of weak coverage.
• ⚠️ Only 3G — if 4G It is very unstable (for example, in the subway).

🔹 Step 2: Manual indication APN

Wrong parameters APN They can reduce speed by 30-50:

Name: MTS (or your operator)|APN: Internet.mts.ru (or analog for others)|Type of authentication: PAP|Type APN: default,supl|Protocol APN: IPv4/IPv6|Leave the remaining fields empty-->

After saving, restart the phone and check the speed again.

🔹 Step 3: Disable VoLTE (if there are problems)

VoLTE technology (voice) LTE) Sometimes it conflicts with data transmission:

1. Go to Settings. → SIM-maps and mobile networks → [Yours. SIM] → VoLTE.
2. Turn off the slider.
3. Reboot your smartphone.

💡

If the speed has increased after the VoLTE shutdown, but the quality of calls has deteriorated, try turning on VoWiFi (wi-fi calls) in the same settings.

3. Improved Wi-Fi reception: from channel selection to hardware tricks

Wi-Fi on Redmi Note 7 runs on standard 802.11ac (5 GHz and 802.11n (2.4 GHz), but often suffers from interference.The main causes of slow Wi-Fi:

• 📡 Overloaded canal (especially in apartment buildings).
• 🔌 Outdated router firmware.
• 📵 Weak signal due to distance from the router.
• 🔋 Energy saving that limits the performance of a Wi-Fi module.

🔹 Step 1: Selecting the Best Wi-Fi Channel

Download the WiFi Analyzer app (Google Play) and check which channels are the least loaded.

1. Go to the router settings (usually 192.168.0.1 or 192.168.1.1).
2. Go to the Wi-Fi section → Channel settings.
3. Select the least loaded channel (e.g. 6 or 11 for 2.4GHz).

🔹 Step 2: Turning off energy saving for Wi-Fi

MIUI aggressively optimises power consumption, which can reduce Wi-Fi speeds:

1. Go to Settings → Battery and Performance → Battery Mode.
2. Choose High Performance.
3. Turn on the optimisation off MIUI (if).

🔹 Step 3: Use 5 GHz instead of 2.4 GHz

The 5GHz band is less crowded and provides more speed, but it's worse than the walls.

1. Make sure the router supports 5GHz (the case must have the inscription Dual-Band or AC).
2. In the router settings, turn on 5 GHz broadcasting (sometimes it is disabled by default).
3. On your smartphone, select a network with a suffix _5G or 5GHz.

4. Hardware methods of signal amplification

If software methods don’t work, the problem may lie in the physical limitations of the Redmi Note 7.

• 📡 Weak antenna (especially Band 20 frequency).
• 🔌 Bad contact. SIM-map.
• 📵 Interference from the body (metal rear panel screens the signal).

🔹 Method 1: Reinstallation SIM-map

Sometimes it is enough to remove and re-insert. SIM-Use the needle from the kit and follow the instructions:

1. Turn off the phone.
2. Remove the tray. SIM-map.
3. Gently wipe the contacts of the card and tray with an alcohol napkin.
4. Put the card back in and turn on the smartphone.

🔹 Method 2: Use of an external antenna (for extreme cases)

If you live in a very weak signal zone, you can connect an external antenna via an adapter. MHF4 (The antenna connector on the Redmi Note 7 motherboard:

• 🛠️ Disassemble the phone (experience required!).
• 🔌 Connect the adapter to the antenna connector (located next to the SIM-tray).
• 📡 Connect an external antenna (for example, 4G LTE magnetobase).

⚠️ Warning: Disassembling the phone is warranty-free and can damage the plumes.This method is recommended only for experienced users or in case of critical need.

🔹 Method 3: Alternative Positions for Better Reception

The Redmi Note 7 metal body can shield the signal.

• 📱 Hold the phone vertically (antennas are located in the upper and lower parts of the case).
• 🚪 Bring your smartphone to the window or go to the balcony.
• 🔌 Use a signal repeater (repiter) in the home.

5. Optimization of system settings MIUI

Branded shell MIUI It's known for its aggressive control of background processes, which can affect Internet speed:

🔹 Step 1: Disabling Auto Updates

MIUI It updates applications and systems in the background by default, consuming traffic:

1. Go to Settings → About the phone → System update.
2. Turn off Automatic Booting via Mobile Data.
3. Google Play. → Settings → Auto Update Apps Select Only via Wi-Fi.

🔹 Step 2: Limit background traffic

Some apps (e.g. Facebook, TikTok) consume traffic even when they are curled up, to limit:

1. Go to Settings → Applications → Application Management.
2. Choose an app (such as Instagram).
3. Click Data Use and turn off Background Data.

🔹 Step 3: Resetting network settings

If the Internet has been affected after the update or change SIM-cards, reset:

1. Go to Settings → System and device → Additional → Resetting.
2. Select Reset Wi-Fi, Mobile Data and Bluetooth settings.
3. Confirm the action and restart the phone.

💡

Resetting network settings removes all saved Wi-Fi passwords and settings APN. Write them down in advance or take screenshots!

6. Advanced methods: engineering menu and modifications

For power users, there are deep optimization methods that require access to hidden settings or even root rights. ⚠️ These methods can lead to unstable operation of the phone!

🔹 Method 1. Forced Band selection (band)

If your carrier supports multiple bands (such as Band 3 and Band 20), but your phone connects to a slow one, you can force it to use a specific Band:

1. Enter the code ##4636## and go to Network Information.
2. Click on the three dots in the upper right corner and select Set preferred network type.
3. Choose. LTE only and specify the desired Band (e.g. Band 3 for high speed).

🔹 Method 2. Change of parameters TCP/IP

Some users note the speed increase after the change. TCP buffer size:

1. Install the MTweak app (root required).
2. In the Network section, find the parameter TCP buffer size.
3. Increase the rmem and wmem values to 4096 87380 4194304.

🔹 Method 3: Firmware of a modified radio module

Enthusiasts are building custom radios that improve reception, like the Redmi Note 7 Global firmware. V12.5.1.0 patched for Band 20. ⚠️ It's risky!

• ⚠️ An unlocked loader is required and TWRP.
• ⚠️ Incorrect firmware can lead to loss IMEI.
• ⚠️ The guarantee will be cancelled.

7 Solving Specific Problems with Redmi Note 7

The Redmi Note 7 has several unique hardware and firmware issues:

🔹 Problem 1: “Hanging” the Internet after leaving the sleep mode

A common complaint of users is that after unlocking the screen, the Internet does not work for 5-10 seconds.

• Turn off the Adaptive Battery in Settings → Battery and productivity → Battery mode.
• Add frequently used apps (such as Chrome) to Unlimited via Settings → Annexes → Permits → Auto-start.

🔹 Problem 2: Weak Band 20 (800 MHz) signal)

Redmi Note 7 is not good at catching Band 20, which is actively used by Russian operators in rural areas.

• Choose another band (see section 6).
• Use an external antenna (Section 4).
• Try it. SIM-card of another operator (for example, Tele2 works better on Band 3).

🔹 Problem 3: Overheating and trottling speed

Heating above 45°The Redmi Note 7 begins to trottle (limit) performance, which also affects Internet speed:

• Remove the cover during heavy use.
• Do not use your phone in the direct sun.
• Turn off background processes with Greenify (root required).

8. Alternative solutions: from VPN shifting

If all methods have been tried, but the speed remains low, consider radical measures:

🔹 Decision 1: Use of the VPN circumventing operator restrictions

Some operators artificially limit the speed of certain services (for example, YouTube or Torrent). VPN help:

• 🛡️ Install ProtonVPN or Warp (from Cloudflare).
• Connect to a server in your country (to minimize ping).
• Check the speed before and after the connection.

🔹 Decision 2: Change of tariff or operator

If your area has poor coverage, it may be worth changing operators to check:

• Use the coverage map on the operator’s website (for example, MTS Beeline).
• Try it. SIM-card of another operator within a week.
• Pay attention to traffic priority tariffs (e.g., Tele2’s “For Yours”).

🔹 Decision 3: Transition to alternative connectivity

If mobile internet cannot be improved, consider:

• 📡 4G-router (e.g. Xiaomi Mi Router) 4G) externally.
• 💻 USB-modem (e.g. Huawei) E3372).
• 📶 Connecting the phone to the router through USB (USB-ethernet mode).

FAQ: Frequent questions about improving the Internet on Redmi Note 7