The problem of low connection speed is familiar to many owners of smartphones Xiaomi, Redmi and Poco. Sudden communication breaks, long loading pages and video buffering can be caused by software failures of the shell MIUI or HyperOS, as well as incorrect settings of network modules.
Often users blame the provider, although the reason lies in a crowded DNS cache or Wi-Fi frequency conflict. In this article, we will discuss proven methods that will help speed up the Internet on Xiaomi phone without using third-party software.
Before you go into complex manipulations, you need to eliminate the basic physical limitations, make sure you are in the zone of confident reception, and the balance of the mobile account is positive, and if the signal is full, but the speed remains low, then it is time to programmatically adjust the device.
Diagnostics and resets of network settings
The first step should always be to diagnose the current state of the connection in depth, and the built-in Android tools allow you to quickly identify the cause of instability, sometimes the system accumulates errors in the connection processes that block the normal operation of the module.
The most effective way to eliminate software glitches is to reset your network settings completely, which won’t delete your personal files, photos, or contacts, but will return your Wi-Fi, Bluetooth, and mobile internet settings to factory values, often solving the problem of the phone “seeing” the network but not transmitting data.
⚠️ Note: After resetting your network settings, you will need to re-enter passwords from all saved Wi-Fi networks and re-interface with Bluetooth devices (earbuds, watches).
To perform the reset, go to Settings → Connection and Sharing → Reset Wi-Fi, mobile networks and Bluetooth. Press Reset and confirm the action with the screen unlock code. After the reboot, the system will create new configuration files for the network stack.
☑️ Checklist before net resetting
Optimizing Wi-Fi settings: Frequency and DNS
Modern routers operate in two bands: 2.4 GHz and 5 GHz. The 2.4 GHz range has a long range, but it is heavily congested with signals from neighbors and household appliances. For maximum speed in the vicinity of the router, it is preferable to use 5 GHz.
Make sure your Xiaomi smartphone is connected to a 5GHz network. If the router broadcasts the same network with the same name for both bands, the phone can switch to a slower 2.4GHz when moving away from the access point. Separating network names in the router settings will help force you to choose a fast channel.
Another critically important parameter — DNS-Server: Providers often use their servers, which can slow processing requests or block. DNS Public servers from Google or Cloudflare often give a noticeable increase in the speed of opening sites.
- 🌐 Google DNS: 8.8.8.8 and 8.4.4.4 are the most stable variants in most regions.
- ⚡ Cloudflare DNS: 1.1.1.1 and 1.0.0.1 – known for minimal response time (ping).
- 🔒 Quad9: 9.9.9.9 – Focuses on the security and blocking of malicious sites.
You can change DNS from the Wi-Fi menu. Click the arrow next to your network name, find IP settings and switch from DHCP to Static. In the fields DNS 1 and DNS 2, enter your selected addresses. Save the changes and reconnect to the network.
Why does DNS affect speed?
Secret Codes and Engineering Menu
Hidden in the MIUI shell are special menus for engineers and testers that allow you to fine-tune a radio module, and one of the most powerful ways to get a phone to look for better cell towers is to use secret codes.
Dial in the phone number ##4636##. The Testing menu will open where you select Phone Information. Here you will find the drop-down list “Install preferred network type” and the default mode can be that supports the old 2G/3G standards for energy savings.
Select the LTE only or LTE/TD-LTE/UMTS option to force the modem to work on 4G networks. This is especially true in places where the 4G signal is weak and the phone is constantly trying to “roll” into 3G, which dramatically reduces the speed.
⚠️ Attention: When choosing a regime LTE You may lose the ability to receive incoming voice calls if your operator does not support VoLTE (Voice over) technology. LTE) in your region.
Also in this menu you can see the signal level in dBm. values closer to zero (for example, -80 dBm) is better than values around -110 dBm. If the signal is very weak, software tricks will not help - you will need an external antenna or a change of place.
💡
If the ##4636### code doesn’t work on your version of MIUI, try downloading the “Force LTE Only (4G/5G)” app from the Play Market, which gives you access to the same hidden settings through the Android system menu.
Cache cleanup and background processes
Internet speed may not be limited to the channel, but to the resources of the smartphone itself. If RAM is full and the processor is loaded with background tasks, the browser and applications will not have time to process incoming data.
MIUI is known for its aggressive work with background processes, but some applications can still eat up traffic. Check the statistics of data usage in settings. It often turns out that heavy applications (social networks, marketplaces) update content in the background while you are not using them.
Clear the cache of Google’s browser and system services. The accumulated debris slows down the processing of network requests. Use Xiaomi’s built-in Security app for quick cleaning, but be careful with the Acceleration feature, which can shut down the messengers you need.
Turn off the Mi GetApps feature if it is active.This service can download updates for installed programs in the background, using your mobile traffic and reducing the overall channel bandwidth.
Comparison of optimization methods
Not all methods are equally effective in different situations, and the choice of solution depends on whether you use mobile Internet or Wi-Fi, and on the model of your device.
| Method | Efficiency for Wi-Fi | Efficiency for 4G/5G | Difficulty |
|---|---|---|---|
| Changing the DNS | Tall. | Medium | Low. |
| Resetting network settings | Tall. | Tall. | Low. |
| Engineering menu (LTE only) | Not applicable. | Very high. | Medium |
| Clearing the cache | Medium | Medium | Low. |
As you can see from the table, a comprehensive approach is the best thing to do: first reset your settings, then set up your DNS, and only if the problem with mobile Internet persists, go to the engineering menu.
💡
Shift. DNS-Servers are the safest and often the most effective way to speed up network response without risking system disruption or data loss.
The Impact of VPNs and Proxy Servers
Use of the VPN-And services are a double-edged sword, and on the one hand, they can encrypt traffic and bypass ISP locks, which sometimes artificially slow down (Throttling technology). VPN It almost always cuts speed.
If you use free IP change apps, try disabling them and checking speed at Speedtest. Free servers are often overloaded by users, creating a huge queue of data packets. Paid services typically provide dedicated, high-bandwidth channels.
Check if the proxy server is enabled. Go to your Wi-Fi settings, select your network, and see the proxy settings. If it says Manual and you have addresses, delete them or switch to No. Unknown proxies can redirect your traffic through slow third-party servers.
In some cases, providers block VPN protocols, which leads to complete absence of Internet when the tunnel is turned on, in which case only changing the connection protocol within the VPN application (for example, from OpenVPN to WireGuard or IKEv2) or abandoning its use will help.