How to speed up the Internet on Xiaomi Redmi Note 8 Pro: from settings MIUI firmware

Why Redmi Note 8 Pro is slowing down the Internet and how to fix it

Xiaomi Redmi Note 8 Pro with Mediatek Helio processor G90T support 4G LTE Cat.12 Theoretically capable of providing download speeds up to 600 Mbps, however, many users are faced with the fact that the real speed of the Internet on the device is much lower – pages load for a long time, videos in the Internet. 1080p It's buffered, and online games are laid, and the reasons can be hidden in software settings. MIUI, and in the hardware limitations of the model.

In this article, we’ll look at 10 proven ways to speed up mobile and Wi-Fi internet on the Redmi Note 8 Pro, including hidden firmware settings, modem optimization, and even hardware nuances. It’s important to understand that some methods require unlocking the bootloader or root rights — we’ll mark them separately so you can assess the risks.

Before you start settings, check your baseline connection speed with services like Speedtest or FAST.com, write down the results to help you evaluate the effectiveness of each method, and make sure that the problem is not on the provider’s side: Try connecting to another Wi-Fi network or inserting it SIM-map.

1. Optimization of mobile Internet settings (4G/LTE)

Redmi Note 8 Pro supports ranges LTE Band 1/3/5/7/8/20/38/40/41, but MIUI You can choose the not the fastest of them. To manually set the priority frequencies, go to the:

Settings → SIM- Maps and Mobile Networks → [Select SIM] → Network Type → Preferred Network Type

Select "Only" here LTE» (if the coating is stable) or «LTE/3G/2G» (for automatic switching at low signal. Avoid "Only" mode 3G» — Artificially restricts the speed of 42 Mbit/s.

For advanced users, there's an engineering mode where you can manually lock down slow ranges.

1. Enter the dialer code: ##4636##
2. Go to the tab "Phone Information".
3. In the "Installation of network type" select LTE experiment with combinations (for example, LTE/TD-SCDMA/GSM China).

⚠️ Attention: Sloppy changes to the engineering menu can lead to network loss. If the Internet is lost after the changes, reset the network settings to Settings → System system → Resetting settings → Reset the network settings.

Another nuance is carrier aggregation. Helio. G90T Supports the integration of up to 3 bands LTE, but some firmware MIUI You can check it in applications like NetMonster (showing the current ranges and combinations of them).

Install "Only" LTE" customized SIM-map

Check the ranges in the engineering menu (#4636##)

Disable traffic savings in MIUI

Supporting Carrier Aggregation-->

2. Wi-Fi acceleration: channel selection, standard and MTU

Redmi Note 8 Pro is equipped with Wi-Fi 5 module (802.11ac) with support for 2.4 GHz and 5 GHz. However, by default MIUI It can connect to congested channels or use suboptimal settings. Here's how to fix it:

Step 1: Selecting a 5GHz range

The 5GHz range is less crowded and supports speeds of up to 867 Mbps (versus 300 Mbps at 2.4 GHz).

• 📶 Go to Settings. → Wi-Fi → Additional settings.
• 🔄 Enable the “Intelligent Switch” option (if available in your version) MIUI).
• 🔍 Manually connect to a 5GHz network if the router broadcasts both frequencies under the same name (SSID).

Step 2: Optimization MTU MTU (Maximum Transmission Unit: The maximum size of the data packet. MIUI It's set to 1,500, but for some networks, the optimal is 1472 or 1492:

Settings → Wi-Fi → [Click on your network] → Additional settings → MTU

Try 1472 or 1492 and check the speed. If the Wi-Fi shuts down after the change, return the standard value.

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If your router supports WPA3, Enable this encryption mode in the router settings. Redmi Note 8 Pro is compatible with WPA3, This can improve speed and security of connection.

3. Disconnect background traffic and optimise MIUI

Operating system MIUI It's known for its Internet traffic gluttony: background processes, system application updates, and analytics can eat up to 30 percent of bandwidth:

Step 1: Limit background traffic

Go to:

Settings → Connections and Sharing → Data Use → Data Transfer

Here:

• 🚫 Turn off “Auto-App Update” in Google Play Settings.
• ⚙️ Turn on Traffic Savings (but this can limit download speeds).
• 📊 Check the list of apps consuming traffic and limit background activity for unnecessary ones (e.g. Mi Video, Mi Browser).

Step 2: Disabling System Analytics

MIUI It collects usage data, which can slow down the network:

Settings → Additional → Privacy → Send error report

Turn off all options related to usage reports and diagnostics.

Step 3: Freeze Unnecessary System Applications

With help. ADB You can disable pre-installed applications that consume traffic:

adb shell pm disable-user --user 0 com.miui.bugreport


adb shell pm disable-user --user 0 com.xiaomi.midrop

A complete list of safe to disable packages can be found on forums like 4PDA.

⚠️ Note: Disabling system applications through ADB It can lead to unstable work. MIUI. Before that, create a backup copy in Settings. → System system → Backup.

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Even after the background activity is turned off, some apps (like Facebook or TikTok) continue to consume traffic. Use a firewall like NetGuard to completely block their access to the network.

4. Update of firmware and modems

Performance of the Mediatek Helio modem G90T It depends on the version of the modem firmware. MIUI There may be bugs that limit the speed of the Internet:

Official way (no root):

• 🔄 Go to Settings. → The phone. → Updating the system.
• 📥 If you have an update, install it. Especially important are updates marked "Improving network stability».

Unofficial method (with unlocking the bootloader):

If the official updates do not help, you can flash a custom radio (modem) through TWRP. Popular options for the Redmi Note 8 Pro:

• 📶 Modem from Xiaomi.EU – Optimized for European Operators.
• 🌍 Global Modem – universal version with support for most ranges.

Firmware instructions:

1. Download the modem file (for example, modem_global_v12.0.1.0.zip).
2. Load to TWRP (Hold Power + Volume Up).
3. Sweep the file through Install → Choose. ZIP.
4. Clean the cache (Wipe → Dalvik / ART Cache).

After the custom modem firmware speed LTE It can increase by 20-40%, but there is a risk of losing support for some local bands (for example, Band 20 in Russia.

5. Hardware restrictions: antennas and heat throttle

Redmi Note 8 Pro has 4 antennae LTE (MIMO 2×2), But their effectiveness depends on:

• 📡 Locations in the case – antennas are in the upper and lower parts of the device. If you hold the phone horizontally (for example, during games), the signal may be weakened.
• 🔥 Overheating - at temperatures above 45°C Mediatek Helio G90T Starts trolling (performance restriction), which affects the speed of the Internet.

To minimize signal loss:

• 📱 Avoid metal or thick plastic covers – they shield the signal.
• ❄️ Do not use your phone in the direct sun or near heat sources.
• 🔄 If you play online games, hold the device upright or use a game trigger (e.g. Black Shark Cooling Backclip).

To check the signal level, use the Network Signal Info application.

• RSRP (signal strength: higher -90 dBm (the closer it is) 0, better).
• SINR (Signal/noise ratio: above 10 dB.

⚠️ Attention: If RSRP below -110 dBm, even optimizing the settings won't help -- the problem is the coverage of the operator, and in this case, only changing the location or using a signal repeater will help.

Alternative methods: VPN, DNS protocols

Sometimes slow internet is not connected to the phone, but to the router or the locks, in which case:

Step 1: Shift DNS

By default. MIUI use DNS your provider, which may be slow:

• 🌍 Cloudflare: 1.1.1.1 and 1.0.0.1
• 🛡️ Google DNS: 8.8.8.8 and 8.8.4.4
• 🚀 AdGuard DNS (blocking advertising: 94.140.14.14 and 94.140.15.15

To change the DNS:

Settings → Wi-Fi → [Click on your network] → Change the network → Additional settings → DNS

Step 2: Use of VPN

Some troll operators (artificially slow down) traffic for certain services (e.g. torrents or video). VPN This is a limitation that can be circumvented:

• 🔒 ProtonVPN (free, no logs).
• ⚡ Warp by Cloudflare (optimized for speed).

Step 3: Protocol IPv6

Some networks work better with IPv6. To turn it on:

Settings → SIM- Maps and Mobile Networks → [Select SIM] → Access Point (APN) → Protocol APN

Choose «IPv4/IPv6» instead of "Only" IPv4».

Extreme measures: resetting, firmware and replacement of antennas

If none of the above has worked, radical methods remain:

Step 1: Completely reset your settings

Sometimes network problems are caused by conflicts in settings. MIUI. Perform the reset:

Settings → System → Resetting settings → Delete all data

Before resetting, save data (photos, contacts) to Mi Cloud or to your computer.

Step 2: Firmware custom software

Official. MIUI It may contain limitations. Alternatives:

• 📱 Xiaomi.EU – firmware without bloatware, with an optimized modem.
• 🔧 LineageOS is a “pure” Android, but some features may be lost (e.g., some features may be lost, IR-blaster).

Instructions for firmware look for on XDA Developers.

Step 3: Replace antennas

If the signal is stable weak (for example, RSRP below -110 dBm), possibly damaged antenna. 8 Pro two:

• 📡 Main - in the upper part (near the camera).
• 📶 The other side is the lower side (with the lower side). USB-C).

Replacement of antennas is better to entrust the service center - they are soldered to the motherboard.

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Custom firmware voids the warranty and can result in a brick device, and use this method only if you have exhausted all other options.

FAQ: Frequent questions about speeding up the Internet on Redmi Note 8 Pro