How to improve the Wi-Fi signal on your Xiaomi phone

The situation when a Xiaomi, Redmi or Poco smartphone stops catching a wireless network in the next room or loses data packets during a video call is familiar to many owners. Often the problem lies not in the breakdown of the antenna module, but in software conflicts or incorrect settings of the energy saving shell of the MIUI. The system can aggressively restrict background processes, believing that they are not necessary, which leads to connection breaks even at the full signal level.

Before you take a device to a service center, you should try a set of software measures that return the module to stable operation in 90% of cases. We will analyze both the standard methods available to each user, and the deeper settings through the engineering menu. Proper frequency calibration and disabling battery optimization for system services work wonders.

In this article, we will go through all the stages of diagnosis, from the banal reboot of the router to editing the system configuration files. If your Xiaomi phone does not catch Wi-Fi well, follow the instructions Step-by-step to eliminate software errors.

Diagnostics and initial configuration of the module

The first step should always be to check the status of the network and the router itself. DNS or the router module freezes causes the phone to see the network but cannot receive it. IP-Try resetting your network settings, which is a safe procedure and does not delete personal photos or contacts.

To do this, go to the Settings menu. → The phone. → Resetting settings → Reset Wi-Fi and mobile networks, and then the device will reboot, and you will need to re-enter the password from the home network, which clears the list of saved access points and resets the settings. TCP/IP.

⚠️ Note: After resetting your network settings, you will have to re-enter passwords from all Wi-Fi networks you have previously connected to.

It’s also worth checking if the router is running 802.11n or 802.11ac only if your phone is a budget phone that only supports the old standards.

Frequency range and region settings

One of the most common causes of instability is the wrong choice of frequency range. Modern routers operate in two bands: 2.4 GHz and 5 GHz. The 2.4 GHz range has a long range, but is heavily noisy by neighboring routers and household appliances.

The 5GHz range provides high speeds but breaks walls worse. If your router broadcasts the same network (SSID) in both bands, Xiaomi’s phone can “cling” to a distant but noisy 2.4GHz, instead of switching to a fast 5GHz. It is recommended in the router settings to separate the network names, adding a “ 5G” prefix to one of them.

The region is an important parameter: you can force the region in the engineering menu to be set where high transmission power is allowed, and for Russia and the CIS countries, regional codes are relevant, allowing work on all channels without power restrictions.

Hidden MIUI settings and engineering menu

In the MIUI shell and the new HyperOS, there are hidden parameters that allow you to fine-tune the behavior of the Wi-Fi module, access them through a special engineering menu, and be careful: changing unknown parameters can lead to unstable system operation.

To enter the menu, open the Phone app and dial the code ##6484## or #3646633## (code may vary depending on the processor: MediaTek or Snapdragon).

You're looking at Wi-Fi Control or NVRAM. Some firmware versions have Power Saving Mode available, make sure it's set to Normal or Max Performance, but not Min Power, which will prevent the system from understating the antenna power to save power.

Also available in this menu is Tx Power, which is a minimum, maximize it, and it helps the phone to punch through the concrete walls.

Optimization of energy saving and background processes

Aggressive energy savings are a scourge of modern Xiaomi smartphones, which can kill the process of maintaining a connection if the screen is turned off, and to fix this, you need to set up exceptions for system services.

Go to Settings → Battery and Performance → Application Management. Find the Wi-Fi app (or Google Play Services, System Framework) on the list. Set the power saving mode to No Limits, which will allow the module to run at full power even in sleep mode.

Also, disable the Wi-Fi Assistant (or Wi-Fi Assistant) feature, which is designed to automatically switch to mobile internet if the Wi-Fi signal is weak, but in practice often causes constant jumps and breaks in connection, since the phone cannot determine the priority source.

⚠️ Warning: Disabling battery restrictions for system services may slightly increase battery consumption in standby mode.

Use of static IP and DNS

Problems with obtaining IP-address DHCP Often result in a long connection or status "Getting" IP-Addresses..." Transition to static IP-Address solves the problem of address conflicts in the local network.

Click on your network name in the list of available Wi-Fi and select "Change" or "Configure." In the advanced settings, change "IP settings" from DHCP to Static. You will need to enter the gateway address (usually 192.168.0.1 or 192.168.1.1) and the address of the device itself (for example, 192.168.0.125).

It is also recommended to register public DNS-This will speed up site openings and reduce ping in games. Use 8.8.8.8 (Google) or 1.1.1.1 (Cloudflare).

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Use the "Ping" app & DNS" Checking the speed of response of new DNS-servers before installing them in the settings of the phone.

Reset network settings and update firmware

If the software manipulations didn't help, there may have been a build-up of configuration errors in the system. A complete reset of network settings (as mentioned at the beginning) is often the last argument before flashing it, and make sure you follow this step after all the settings.

Also check for system updates. In Settings → About the phone, click on MIUI/HyperOS. Xiaomi engineers regularly release patches that fix Wi-Fi drivers, especially for new models.

In rare cases, the problem lies in the hardware: the antenna contact may have left after a fall. If the phone fell and the signal disappeared abruptly, it is worth checking the integrity of the antenna plume by pressing the upper part of the body (where the antenna is usually located) with your hand. If the signal appears, the problem is in the contact.

Frequently Asked Questions (FAQ)