When navigation on a smartphone suddenly stops determining location, it is often taken by surprise at the most inopportune moment. Xiaomi, Redmi and POCO users experience this regularly, especially after system updates or when installing unofficial assemblies. The Global Navigation Satellite System may not work properly due to software failures, incorrect power saving settings, or even physical damage to the antenna module.
In this article, we will discuss in detail why your phone stopped seeing satellites, and how to return geolocation accuracy without visiting a service center. Often the problem lies in a conflict of programs or outdated A-GPS data, which is easy to fix yourself. It is important to understand that the accuracy of positioning depends on many factors, from the weather to the version of the MIUI firmware or HyperOS.
Before you sound the alarm, you need to do a basic diagnostic, and many users mistakenly believe that the module is out of order, when it is enough to simply reset the cache of cards or switch to location mode, let's look at the main failure scenarios and how to fix them.
The main causes of geolocation failures
The first thing to rule out is the banal lack of signal or blocking of the satellite signal, if you are in a basement, elevator or room with thick concrete walls, GPS-The receiver will not be able to physically pick up the signal, but if the problem occurs outdoors, the reasons go deeper, and privacy settings that the user may have accidentally changed or that have been reset after the update are often to blame.
The second common cause is application conflict: Navigation programs such as Yandex.Navigator, Google Maps or 2GIS can conflict over access to the geolocation module. Android, installed on top of Xiaomi’s shell, sometimes misallocates resources, blocking access to coordinates for one of the background processes.
Also worth considering is the influence of covers and accessories: Metallized covers or magnetic holders can interfere with the antenna located at the top of the case. Even a thick rubber bumper sometimes shifts the receiving point, making navigation inaccurate.
- 📍 Incorrect mode of operation: In the settings is the mode "Only on the network", which is less accurate than "According to all sources".
- 📍 The phone "does not remember" where the satellites are, and for a long time can not find them.
- 📍 Energy Conservation: Aggressive Policies MIUI switch off GPS battery-saving.
- 📍 Google services failure: Google Play Services error disrupts app coordinates transfer.
⚠️ Warning: If after falling or getting moisture GPS It's not working immediately, and there's a high probability of physical damage to the antenna plume or the module itself, and then software techniques may not be helpful.
Understanding the root cause allows you to choose the right algorithm for actions, and if you've recently changed your firmware to the Chinese version or installed custom recavers, the problem may be with the drivers of the air interface.
Basic setting and parameter check
The first step in diagnosing is to check the basic settings of the system, make sure that geolocation is enabled at all. On modern versions of HyperOS and MIUI, access control has become more detailed, and sometimes the slider in the curtain is active and the settings are limited.
Go to Settings → Location, where you need to check which method of determination you have chosen. For maximum accuracy, use High Accuracy (or All Sources) mode, which uses not only satellites, but also Wi-Fi networks and cell towers for quick start.
☑️ Checking settings GPS
Next, check the access rights for specific applications. Android allows you to give permission to geolocate "Only when used" or "Always." If the navigator is not allowed to work in the background, it can lose signal when the screen is turned off.
It's also important to check if the power saving mode is on, and if you activate the energy saving mode, the system can force the system to shut down. GPS-Try turning off all saving modes and check navigation again.
Sometimes it helps to just restart geolocation services, turn off and turn on the GPS through the control panel, but do it not immediately, but after a pause of 10-15 seconds, which allows the module to completely shut down and start again.
A-GPS data reset and calibration
One of the most effective ways to address the problem of long-term satellite search is to reset the A-GPS (Assisted GPS) data, which stores almanacs and ephemerides, which are satellite position data, and if that data is outdated or corrupted, the phone will search for satellites for a very long time or will not find them at all.
To perform this operation, it is best to use a specialized application, such as GPS Status & Toolbox or GPS Test. Standard A-GPS deep reset is difficult to do. In the application, you need to find the menu item "Manage the status of A-GPS" and select "Reset".
After the reset, you need to download the latest data. In the same menu, select "Download." The phone will contact the server and download the current position of the satellites, which will significantly accelerate the first launch (TTFF).
What is a cold and hot GPS start?
Also worth mentioning is compass calibration, which often affects the direction of travel, although not always the fact of receiving the signal. In the Google Maps app, click on the blue dot of your location and select "Calibrate." Follow the instructions on the screen, turning the phone in space.
If the situation has not changed after the A-GPS reset and calibration, it may be a software conflict or the need to adjust the engineering menu more deeply.
Engineering menu and module testing
For advanced users, you can access an engineering menu where you can check the status of antennas and force GPS testing to help you understand whether the hardware sees satellites at all or the problem is solely in the software part.
To enter the engineering menu, open the Phone app and enter the code ##6484##. If the code doesn't work, it may be blocked by your firmware version or region. In the CIT menu that opens, find the item associated with GPS (usually called "GPS", "GNSS" or "Location").
Inside the test, you'll see a map of satellites. If you're outside or at a window, you'll see signals after a while. Pay attention to the indicators: green means good signal, red means no communication, if the test has satellites and the navigator doesn't have them, the problem is the application or access settings.
| Parameter | Meaning | Description |
|---|---|---|
| Satellites | 0 / 32 | Number of satellites visible (total/used) |
| Accuracy | 10-50 m | Accuracy of coordinate determination in meters |
| Time to First Fix | < 30 seconds | Cold/hot start time |
| SNR | > 30 dB | Signal level (the higher the better) |
In some cases, switching the GNSS modes helps. In the engineering menu, you can find the option to choose systems: GPS only, GLONASS, BeiDou, Galileo. Try to leave only GPS + GLONASS, because in our latitudes they work most stable. Excessive active systems sometimes cause interference on older models.
Impact of MIUI and HyperOS energy saving
Xiaomi shells are known for aggressively optimizing applications in the background, which can kill navigation by thinking it’s voracious even when you’re using a screen, a common reason why the navigator is silent or resets the route.
To fix, you need to configure the application individually. Go to Settings → Applications → All applications, find your navigator (for example, Yandex.Navigator). Go to the "Battery" or "Energy Saving" section.
Set the “No Limits” mode, which is a critical step for stable GPS performance on Xiaomi devices, and check auto-start: it must be enabled so that the app can properly initialize the geolocation module at launch.
- 🔋 No restrictions: Allows the application to run in the background without power restrictions.
- 🔋 Auto Start: Allows the system to start navigator service processes when the phone is turned on.
- 🔋 Permits: Make sure that access to the location is “Always” and not “Only when using".
⚠️ Warning: Customizing “No Limits” can lead to a little faster battery consumption, but for navigation applications, it’s the only way to work consistently.
Another nuance is the Cleanup Master mode or built-in antiviruses, which can block access to GPS as suspicious activity, add the navigator to the exceptions or the security whitelist.
Hardware problems and system interference
If software methods didn't help, it's worth considering hardware reasons: the antenna GPS module in Xiaomi smartphones is often combined with a Wi-Fi/Bluetooth module. If you don't catch Wi-Fi well, there may be a problem in the general antenna group.
A common problem is unplugging the antenna contact, which can move away from the body if it falls or is poorly assembled, which requires disassembling the device and pressing the contact, and it is not recommended to do this without experience, as it can damage the plumes.
Also worth mentioning is the impact of custom firmware: If you have a phone that is CN to Global or installed a custom build (LineageOS, Pixel Experience), it may not have proprietary drivers or config files for your region, which means that the phone doesn’t know which frequencies to use.
💡
Try resetting your network settings. This won’t delete your photos or contacts, but will return the standard APN and Bluetooth settings, which sometimes resolves driver conflict.
In rare cases, a full reset to the factory settings (Hard Reset) helps. Before you do it, make sure to back up the data. If after reset and without installing third-party applications, GPS does not work, it is 99% hardware failure.