Owners of the popular Xiaomi Redmi Note 8 Pro smartphone often face a situation where the declared speed of 4G does not correspond to the real one. Slow loading of pages, video buffering and long server responses can be caused not only by a weak signal from the operator, but also by the software limitations of the MIUI system. Understanding how the communication module works in conjunction with the Helio G90T processor is the first step to solving the problem.
In this article, we'll take a comprehensive approach to optimizing network settings, learn what hidden menu options can help, how to set up APN hotspots correctly, and whether to use third-party apps to speed up.
Before we get to the tricky part, we need to rule out trivial factors like a crowded cache or an outdated firmware version. Often, it's software failures that accumulate over time and keep the communication module from running at full capacity. Let's start with a basic but critical analysis of the current state of the network.
Diagnostics of current connection and signal verification
The first step should always be to objectively assess the quality of the signal, and you should not rely only on the number of sticks in the status bar, because this indicator is often incorrect. The real picture is displayed in decibels, and it is these numbers that you need to focus on when looking for bottlenecks.
To get accurate data, you need to activate the engineering display mode, which will allow you to see signal power level (RSRP) and signal quality (SINR). If the RSRP value is below -110 dBm, then the problem lies in the physical location or obstacles, not in the settings of the phone.
Use built-in diagnostic tools to understand what frequency range your Redmi Note 8 Pro is running. Switching between bands can make a big difference to connection stability, especially in congested urban environments.
- 📶 Open the dial menu and enter the code ##4636## to access the test menu.
- 📶 Select “Phone Information” and find the “Network” line».
- 📶 Pay attention to the type of network: it should be LTE, not H+ or 3G.
- 📶 Check the signal level: the optimal range of -70 before -90 dBm.
⚠️ Note: If you are on menu 4636, do not accidentally change the parameters of the radio module unless you are sure of their value.
Optimizing the settings of the APN access point
One of the most effective measures to speed up the Internet is manually setting up the APN hotspot. Telecom operators often provide standard settings that may not be optimal for modern high-speed protocols. Changing the type of protocol and ports can reduce ping and increase bandwidth.
You need to create a new access point or edit an existing one by making changes to the protocol fields. The key here is choosing the right type of APN and prioritizing IPv4/IPv6, which allows the phone to connect faster to the operator's gateways.
Remember to save the changes and, most importantly, choose the created point active before checking the speed. Sometimes the system may ignore the new parameters until the communication module or the smartphone itself restarts completely.
| Parameter | Recommended value | Description |
|---|---|---|
| Name. | Fast Internet | Arbitrary name for a new point |
| APN | internet | Depends on the operator (mts, beeline, tele2) |
| Protocol APN | IPv4/IPv6 | Compatibility with all servers |
| Type of authentication | PAP or CHAP | Standard authentication method |
| MCC/MNC | Change | Country and operator codes must match the SIM |
☑️ Setting up APN
Use of hidden settings and engineering menu
Android and the MIUI shell provide access to deep radio settings that are hidden from the average user, in particular, you can force the phone to work only on LTE networks, eliminating a drop in 3G with a short-term signal weakening.
In the Preferred Network Type menu (accessible via #4636##), select LTE Only mode to prevent constant reconnection and session breaks, which is often perceived by users as a “brake” of the Internet. However, beware: this mode may not work incoming calls unless VoLTE technology is enabled.
Also worth paying attention to the settings of data roaming, even if you are in the home region, sometimes enabling this option allows the phone to register on the freer frequencies of neighboring towers, which can have a positive effect on speed.
⚠️ Attention: Regime LTE Only can cause you to be unable to make or receive regular voice calls if your carrier does not support VoLTE.
How to return the possibility of calls in LTE Only mode?
Shift. DNS-servers to speed up response
Page loading speed depends not only on the data channel, but also on the response speed of name servers (DNS). Standard. DNS-Your carrier’s servers are often overloaded or slow to process requests, and replacing them with public and fast servers from Google or Cloudflare can significantly speed up the opening of sites.
The Xiaomi Redmi Note 8 Pro running Android 10 and higher has a built-in “Private DNS” feature. This is the easiest and most efficient way to change the DNS without installing third-party software. You do not need root rights, just enter the host address in the appropriate field.
The use of modern DNS over TLS (DoT) protocols also increases the security of your connection by encrypting domain name requests, which is especially true when using open or unsecured networks, although in the case of mobile traffic, it is more a matter of privacy and speed of name resolution.
- 🚀 Go to Settings. → Connection and sharing.
- 🚀 Find the item "Private" DNS» (Private DNS).
- 🚀 Select the option “Host Name Provider” DNS».
- 🚀 Enter the address dns.google or 1dot1dot1dot1.cloudflare-dns.com.
💡
After changing the DNS, be sure to turn on and off flight mode to reset current network connections and apply new name server settings.
Resetting network settings as a radical method
If the software settings are lost or configuration errors have accumulated in the system, the best solution is to completely reset the network settings, which will return all settings of Wi-Fi, Bluetooth and mobile Internet to factory values, eliminating possible conflicts.
It's important to understand that after this operation, you'll have to re-enter passwords from Wi-Fi networks and a new Bluetooth device, but for a communications module, this is equivalent to a clean start, which often solves problems with permanent connection breaks.
Perform this procedure only after other methods have been tried, such as changing APN or DNS. In most cases on the Redmi Note 8 Pro, this action helps restore normal modem operation after major system updates.
Settings → Connection and Sharing → Reset Wi-Fi, Mobile Networks and Bluetooth → Reset SettingsInfluence of covers and physical condition of the device
The Xiaomi Redmi Note 8 Pro has a specific location of antenna lines. Some tight cases, especially those with metal inserts or magnetic mounts, can shield the signal, reducing the speed of the Internet.
Also check the status. SIM-If your SIMKE is a few years old, her contacts may have oxidized, or she simply does not support modern standards for fast data exchange. SIM-New cards in the operator’s cabin – a free and often effective step.
Make sure there is no dust and dirt in the card slot.Griefly cleaning the contacts with alcohol (when the phone is off) can improve contact and connection stability.
💡
An integrated approach involving the shift DNS, setup APN physical examination SIM-The best result in improving the speed of mobile Internet.