Owners of the popular smartphone Xiaomi Poco X3 Pro often face a situation where the manufacturer’s stated connection speed does not correspond to the real one. A device equipped with a powerful Snapdragon 860 processor is able to process huge data streams, but software restrictions or incorrect settings can become a serious bottleneck. The problem can manifest itself in slow loading pages through the mobile network, and in the unstable operation of the Wi-Fi module.
Before you blame a provider or look for a fault in an antenna, you need to do a deep diagnostic of the software part. The MIUI operating system that Poco runs on, has many hidden parameters that allow you to reconfigure network connections priorities, and the correct configuration of these parameters can work wonders, especially in areas of uncertain reception.
In this article, we will not only break down the standard methods, but also the more advanced techniques available through the engineering menu and network resets. You will learn how to make your Poco X3 Pro work at maximum efficiency in 4G and 5G networks, as well as optimize wireless connection for gaming and streaming.
Diagnostics of the current state of the network
The first step is always to make an objective assessment of the situation, not to rely on a subjective feeling of "slow" or "fast", but to make an accurate diagnosis, you need to use specialized tools that show the real channel throughput in megabits per second.
There are many applications for speed testing, but the most accurate results come from time-tested services that allow you to estimate not only download speed, but also ping (latency), which is critical for online gaming. If the rates are significantly lower than the declared tariff, the problem lies in the device or settings of the router.
⚠️ Note: Before starting the test, be sure to turn off VPN-services and proxy servers, as they artificially lower speeds and increase latency.
To do the test, connect to the network you plan to optimize and run the application. Write down the numbers you get to compare them to the results after you make the changes, and this will help you understand the effectiveness of the methods used.
- 📶 Ookla Speedtest is the most popular service with a huge database of servers around the world.
- 🚀 Fast.com is a minimalist test from Netflix, perfect for checking streaming speed.
- 📡 nPerf – provides detailed information on coating quality and connection stability.
The data you get will be your starting point, and if the speed is less than 50 percent of the tariff, you need to move to active steps to set up the system.
Resetting network settings and rebooting modules
Often the cause of instability of the Internet are accumulated during the operation of the system errors in the configuration files of the network. Android operating system can incorrectly switch between cell towers or keep outdated DNS parameters. A simple but effective way to solve this problem is a complete reset of network settings.
This procedure won’t delete your personal files, photos or contacts, but it will clear all saved passwords from Wi-Fi, Bluetooth device settings and mobile hotspot settings. Once reset, the system will create new, clean configuration files, which often eliminates software conflicts.
☑️ Preparation for network reset
To perform the reset, go to the settings menu of your Poco X3 Pro. The path may vary slightly depending on the version of MIUI, but the logic remains the same. Find the partition responsible for connecting and sharing data, and select the reset option.
Settings → Connection and Sharing → Reset Wi-Fi, Cellular Networks and BluetoothOnce confirmed, the smartphone will automatically reboot the network modules, you will need to re-enter the password from your home Wi-Fi, which in some cases instantly restores normal connection speeds.
Configure APN Access Points for 4G/LTE
One of the most effective ways to speed up mobile internet is to manually set up an APN (Access Point Name) hotspot.Telecommunication operators often use standard settings that are not always optimal for specific regions or smartphone models, such as the Poco X3 Pro.
Changing the parameters APN, You can force your phone to switch to faster data protocols or change your phone. DNS-This is especially true if you're in a zone where the signal is being sent. 4G It is unstable and the phone is constantly trying to switch to the 3G.
To enter the access point settings menu, use the following path in the settings engineering menu:
Settings → SIM- Maps and Mobile Networks → Select SIM- Cards → Access Points (APN)In the list that opens, select your current access point or create a new one by clicking on the plus-plus. Pay special attention to the fields APN Type and APN Protocol. Make sure that default, supl and IPv4/IPv6 are selected there, respectively.
| Parameter | Recommended value | Description |
|---|---|---|
| Name. | Fast Internet | Arbitrary name for a new point |
| APN | internet | Depends on the operator (mts, beeline, tele2) |
| Protocol | IPv4/IPv6 | Compatibility with all servers |
| Type APN | default,supl | Standard traffic and geolocation services |
Secret code to check for APN
After making changes, be sure to save the profile and activate it. Rebooting the device will consolidate the result. If the speed has not changed, try creating multiple profiles with different DNS settings and testing each one.
Optimizing Wi-Fi Connection
Wireless networking requires a special approach, as it is influenced by many external factors, from the thickness of the walls to the operation of the microwave. Poco X3 Pro supports dual-band Wi-Fi, and the right use of this advantage is the key to high speed.
First of all, make sure your smartphone is connected to a 5GHz network, not 2.4GHz. The 5GHz band provides significantly higher bandwidth and is less prone to interference from neighboring routers, although it has a smaller range.
- 📡 Change of channel: If you are using the 2.4GHz band, try changing the channel in the router settings to 1, 6 or 11 to avoid intersections.
- 🔒 Encryption: Make sure that the router has a modern security standard WPA2/WPA3, Older standards can cut speed.
- 📶 Positioning: Place your router as high and close to the center of the apartment as possible for uniform coverage.
⚠️ Warning: Do not use metal objects to shield your router or smartphone, this creates “dead zones” and reflects the signal, degrading the quality of communication.
It’s also worth checking if your smartphone has Wi-Fi Assistant enabled, which can automatically switch you to mobile internet when you have a weak Wi-Fi signal, sometimes causing connection breaks.
Using DNS to speed up response
Page loading speed depends not only on channel bandwidth, but also on the response speed of domain name servers (DNS). Providers by default use their DNS-servers that are often overloaded or slow to process requests.
Replacing standard DNS with public and fast servers from Google or Cloudflare can significantly speed up site openings. On Poco X3 Pro, this can be done through DNS (Private DNS) settings, which is a more modern and secure method than changing the DNS at an APN access point.
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Use Cloudflare’s DNS (1.1.1.1) if speed is a priority, or Google’s DNS (8.8.8.8) if stability and availability are important.
To set up, go to the Connection and Sharing menu and find the Private item. DNS» (Private DNS). Select the option “Host Name of the private provider” DNS» And you write in the server address. This action will use encrypted DNS-connection for all applications.
dns.googleor
1dot1dot1dot1.cloudflare-dns.comAfter saving the settings, it is recommended to clear the browser cache and DNS-cache system (can be done through a reboot or special applications-cliners). you will immediately notice that the pages begin to respond faster, even if the download speed of files remains the same.
Hidden settings and engineering menu
For advanced users who want to get the most out of the Poco X3 Pro, there is access to hidden features through an engineering menu, where you can manage transmit power and network priorities at a deeper level.
This menu is logged in via a standard phone code, and be careful that changing unknown parameters can cause the modem to run unstable, and we're only interested in settings related to network mode.
Enter ##4636## in the dialing app. The test menu will open. Select Phone Information. Here you will see the current network status and the choice of preferred network type.
- 📱 Regime only. LTE: Forcedly keeps the phone in 4G, ignore 2G/3G. Useful in areas with good 4G, bad 3G.
- 🌐 Regime. GSM/WCDMA/LTE: Standard Automatic Mode for Best Compatibility.
- 📡 Signal power: In some versions of the software, you can see detailed information about the signal level in dBm.
Use these settings wisely. For example, if you are in a moving vehicle, forced LTE mode can lead to frequent network losses, as the phone will not be able to switch to longer-range 3G in the tunnel or out of town.
Impact of Background Processes and Updates
Often the reason for slow internet isn’t because of communication settings, but because apps in the background eat up all traffic. MIUI is known for its aggressive energy saving policies, but sometimes it allows system services to update at the wrong time.
Check the list of applications that have access to data in the background. Social networks, messengers and cloud storage can constantly sync photos or upload videos, creating the illusion of “slow Internet” for other tasks.
⚠️ Warning: Disabling background data for system applications (e.g., Google Play Services or Mi Cloud) may disrupt notifications and contact synchronization.
It’s also worth checking if apps are running automatically on Google Play or GetApps. Set a limit on app updates only over Wi-Fi so mobile traffic isn’t wasted.
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Regular monitoring of application background activity is the easiest way to keep your internet speeds up throughout the day.