Xiaomi Redmi Note 8T remains a popular device, but over time users often notice a decrease in data transfer speeds. This can be due to the accumulation of system debris, incorrect operator settings or software failures in the MIUI shell. Before blaming the provider, it is worthwhile to conduct a series of manipulations with the device itself to exclude local problems.
In this guide, we will discuss effective methods to help stabilize connection and increase page load speed. The Redmi Note 8T has a Snapdragon 665 modem that supports frequency aggregation, but by default this feature can be limited by software. The correct configuration of network parameters can work wonders even with a weak signal.
We'll look at both the standard Android operating system tools and more advanced customization methods, and it's important to do things consistently, check the results after each step, and determine exactly which method worked in your situation.
Diagnostics of current connection and operator selection
The first step is always to make an objective assessment of the situation, and often the problem is not the phone, but the congestion of the cell tower or the tariff restrictions, and use the built-in speed tests to record the current Ping and throughput performance.
Note the network indicator in the status bar, and if a device is constantly switching between 3G, H+ and 4G, it indicates unstable coverage, and in these cases, the phone is wasting resources on finding the best network, which reduces overall performance.
⚠️ Warning: In areas with extremely weak signal, forced switch to "Only" mode 4G" This can cause a complete loss of communication as voice calls are made on networks. LTE (VoLTE is not supported by all operators.
Check to see if the traffic saving mode is activated in the background for important applications.The system may limit background activity, thinking that it saves your money, but in fact it prevents instant messengers and email clients from working quickly.
- 📶 Check the signal level at different points in the room to eliminate local interference.
- 📱 Make sure that SIM-The card is not older than 5 years, as older cards may not support modern encryption protocols.
- 🚫 Turn it off. VPN-Services and proxies, if not critical, often cut speeds.
Reset network settings and APN flashing
One of the most effective measures is a complete reset of network settings, which will return all connection parameters to factory values, removing possible configuration conflicts, and after the restart, the phone will again request current data from the operator.
Special attention should be paid to access points APN (Access Point Name). Often automatic settings that come in SMS are outdated, manually creating a new access point with current parameters can greatly improve the situation.
To create a new point, go to the Settings menu → SIM-maps and mobile networks → Access points (APN). Click the "New Access Point" button and enter the data provided by your operator on the official website. Do not copy the settings from unverified sources on the Internet.
☑️ Checking settings APN
Once you have saved the new configuration, be sure to restart the device. If the Internet does not appear immediately, try to turn on and off flight mode for a few seconds, this will force the device to re-register on the network with new parameters.
Selection of preferred network type and frequencies
Redmi Note 8T owners have the option to manually choose the type of network; by default, the system decides when to use 4G and when to roll back to 3G. Forced LTE priority setting can help if you are on the edge of coverage areas.
You can use the engineering menu to access the advanced network settings. Enter the code ##4636## in the Phone app. From the menu that opens, select Phone Information and find "Configure preferred network type."
| Regime. | Description | Recommendation |
|---|---|---|
| NR/LTE/GSM | Priority 5G, then 4G | For 5G coverage areas |
| LTE only | Only 4G. | For a stable Internet without calls |
| LTE/TD-SCDMA/GSM | Auto choice | Standard mode of use |
| GSM only | Only 2G. | Only for emergencies. |
Using LTE only ensures that your phone won’t jump to slower communication standards, but remember that incoming calls may not pass in this mode if the carrier doesn’t support VoLTE technology or if you don’t use messengers for calls.
The risks of the engineering menu
Optimization of DNS servers
The speed of opening pages often depends on the response time. DNS-The default servers are the servers that can be overloaded, using public and fast. DNS, Google or Cloudflare often solves the problem of long loading sites.
Android 9 and above, which is installed on the Redmi Note 8T, has a built-in "Private DNS" feature that encrypts requests and speeds up their processing. Go to Settings → Connection and Sharing → Private DNS.
Select the option “DNS provider hostname” and type in the address dns.google or 1dot1dot1dot1.cloudflare-dns.com. This action does not require the installation of third-party applications and works at the system level.
- 🚀 Cloudflare (1.1.1.1) often shows better ping results in gaming apps.
- 🔒 Google DNS (8.8.8.8) is highly stable and accessible.
- ⚙️ Quad9 (9.9.9.9) provides additional protection against phishing sites.
⚠️ Attention: If after the shift DNS If you stop opening pages or some apps stop working, you can return the setting to Auto mode. DNS.
Cleaning the application cache and system
The accumulated cache of the browser and system services can significantly slow down the Internet. Garbage files take up space and cause the processor to waste resources on processing them. Regular cleaning is a mandatory procedure to maintain speed.
Use Xiaomi’s built-in Security app. Run scan and clean. Also go to your storage settings and clear the cache of heavy apps like Telegram, YouTube or Chrome.
To clean it up, you can use the developer mode, turn it on by clicking 7 times on the build number in the About section, then in the Developer menu, find the option to limit background processes, but use it with caution.
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To quickly clear the DNS cache, open the Phone app, dial ##7780## (not working on all firmware) or simply restart the phone in Safe Mode to check if the third-party app is to blame.
Resetting to factory settings as an extreme measure
If none of the software methods worked, there may have been a lot of critical errors in the system, and a hard reset will bring the phone back to its original state, and it's guaranteed to remove all viruses and incorrect configurations.
Before you do this, make sure to back up all your important data, delete your photos, contacts and documents irrevocably, charge your battery to at least 60 percent so that your phone doesn't turn off during the process.
Go to Settings → About → Settings → Settings Reset → Erase all data. The process will take 5 to 15 minutes. Once turned on, configure the phone as new without restoring all the applications from the backup at once to check the Internet speed on a clean system.
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Full reset eliminates 99% of software conflicts that interfere with the model, but takes time to reconfigure the device and install applications.