Xiaomi GPS Calibration: Why Smartphones Are Lying and How to Fix It

Have you ever noticed that Xiaomi detects your location with a 50-200-meter error? Or Google maps show you on the next street, even though you are standing still? The problem is not always a weak signal - often uncalibrated GPS sensor is to blame. In this article, we will discuss why this happens, how to properly configure the geolocation module on Redmi, POCO and Mi smartphones, and what to do if calibration does not help.

Modern Xiaomi smartphones use a combined navigation system: in addition to the classic GPS (American system), they support GLONASS (Russian counterpart), BeiDou (Chinese) and Galileo (European), but even with this arsenal, accuracy can “float” due to lost settings, outdated software or hardware features. For example, the metal case of the POCO F5 or Xiaomi 13 Ultra can shield the signal, and budget models like the Redmi 12C often save on antenna quality.

Signs that Xiaomi’s GPS is not working properly

Before you rush to calibrate the sensor, make sure it's the problem.

📍 Inaccurate coordinates: on maps you are “jumping” within a radius of 100+ Meters or your location is shifted to the next street.
🕒 Long signal search: apps like Google Maps or Yandex.Navigator take a minute or more to “think” before showing your position.
🔄 Constant “jumps”: Accuracy is improved and then falls again for no apparent reason.
🚗 Navigation errors: Voice assistant reports or misses incorrect turns.
📵 Lack of signal in the city: in conditions of dense construction GPS refuses to work.

If you know at least 2-3 items from the list, it means that the sensor needs to be adjusted.

⚠️ Warning: Before calibrating, make sure that the high-precision mode is enabled on the smartphone (Settings) → Security and confidentiality → geodata → Regime. → High accuracy. In charge saving mode» GPS It uses only Wi-Fi networks and cell towers, which gives an error of up to 1-2 km!

Why Xiaomi GPS is lying: 5 main reasons

Calibration doesn't always solve the problem, and sometimes the root of evil goes deeper.

Reason.	How it manifests	Decision
Outdated PO	Failures after MIUI update or firmware	Update Google Play Services and MIUI to the latest version
Failure in A-GPS data	Long search for satellites from a cold start	Reset the A-GPS data (instruction below)
Hardware restrictions	Bad signal in metal housings (POCO X3, Mi 11)	Use an external antenna or case without metal inserts
Conflict of applications	GPS works only in some programs (for example, in Google Maps, but not in 2GIS).	Clear the cache of navigation apps
Incorrect settings of energy saving	GPS shuts down in the background	Add navigation apps to battery optimization exceptions

A critical feature of Xiaomi smartphones is that after resetting to factory settings, the A-GPS (Assisted GPS) data is reset, and the first search for satellites can take up to 10-15 minutes.This is normal, but many users take this for a malfunction and begin to “treat” the phone, exacerbating the problem.

📊 How often do you use it? GPS-navigation?

Every day.

Several times a week

Rarely.

Only on trips.

Never.

Calibration Preparation: What to Do in Advance

The GPS calibration is not a magic "fix everything" button, so to make it work, you can do the following steps:

Check your Internet connection. To download A-GPS data, you need network access (Wi-Fi or mobile Internet).
Enable geodata in settings (Settings → Privacy → Geodata).
Update Google Play Services. Go to the Play Market, search for the Google Play Services app, and click Update.
Clear the cache of navigation applications. To do this, go to Settings → Applications → Application Management, select Google Maps or Yandex.Navigator, click Clear Cache.
Turn it off. VPN. Some of them VPN-Services block access to servers A-GPS.

If you are using Xiaomi.eu or custom firmware, make sure that Google services are not disabled in it, for example, in some MIUI builds for Russia, Google Location Service is disabled by default, which leads to GPS problems.

High-precision geodata mode enabled |

Updated Google Play Services |

Cache of navigation applications cleared |

VPN disabled (if used) |

Smartphone connected to the Internet-->

The most effective method is to manually configure through the engineering menu, and the instructions vary depending on your Xiaomi processor:

For smartphones with MediaTek processor (Redmi Note 11, POCO M4 Pro, Redmi 10C)

1. Open the Phone application and enter the code:

##36446337##

2. Select YGPS (or Location → YGPS in newer versions of MIUI).

3. Go to the Information tab and click Full (full data reset).

4. Return to the Satellites tab and wait until the smartphone finds satellites (can take 5-10 minutes).

5. After a successful search, go to the AGPS tab and click Reset (A-GPS data reset).

For smartphones on a Qualcomm processor (Xiaomi 12, POCO F4, Redmi K50)

1. Enter the dialer code:

##1472365##

2. Select GPS or Location.

3. Press Delete AGPS Data (delete A-GPS data).

4. Go back to the main menu and select GPS Test → Start Fix.

5. wait until the smartphone “catch” at least 8-10 satellites (ideally – at least 12).

Important: After calibration, do not close the engineering menu until you see a stable signal. If the satellites are not longer than 15 minutes, the problem may be in the hardware (antenna or GPS module).

💡

If the engineering menu doesn’t open, try using the MTK Engineering Mode app (for MediaTek) or the Shortcut Master (for Qualcomm) from the Play Market.

Method 2: Resetting A-GPS data via applications

If the engineering menu seems complicated, use third-party utilities that automate the calibration process and often provide more visual information about the status of GPS.

📱 GPS Status & Toolbox (Play Market): shows the number of satellites found, signal strength and allows you to reset data A-GPS It is suitable for all Xiaomi models.
🛠️ GPS Test: visualizes the position of satellites in the celestial sphere and helps to assess the quality of the signal.
🔧 AndroSensor: displays raw data from sensors, including GPS. Useful for diagnosis.

Instructions for GPS Status & Toolbox:

Install the application and open it.
Click on the menu icon (three dots) and select A-GPS Status Management.
Tap Reset, then Download (this will update the GPS assistant data).
Return to the home screen and wait for the app to find the satellites (green bars are good, red bars are weak).

If there are no satellites after reset, try:

🔄 Reboot your smartphone.
📶 Go to an open-air location (such as a balcony or park).
⚡ Turn on flight mode for 30 seconds, then turn off.

What is A-GPS and why should it be dropped?

A-GPS (Assisted GPS) is a technology that speeds up satellite search by downloading auxiliary data from the Internet (such as a satellite almanac). If this data is outdated or corrupted, the GPS may not work correctly. Resetting the A-GPS forces the smartphone to download fresh data from Google or Xiaomi servers.

Method 3: Update the firmware and GPS module

If calibration doesn’t work, the problem may lie in outdated software, and Xiaomi regularly releases updates for the GPS module, especially for new models like the Xiaomi 14 or the POCO X6 Pro.

How to update GPS-module:

Check out MIUI version: Settings → About Phone → MIUI version. If an update is available, install it.
Update Google Play Services and Google Maps through the Play Market.
For advanced users: Freshly stream GPS-configuration TWRP (Requires an unlocked bootloader. Current configs can be found on the forums 4PDA or XDA Developers.

Warning: firmware GPS-Manually configured can cause complete signal loss if the file is not suitable for your model.

💡

Updating MIUI and Google Play Services should be the first step for any GPS issues, and 60% of the time, it solves the problem without any additional manipulation.

What if calibration doesn’t help?

If, after all the manipulations, the GPS still doesn’t work well, check the following points:

⚠️ Attention: on Xiaomi smartphones with Qualcomm Snapdragon processor 4xx/6xx (Like Redmi. 9A, POCO M3) Frequently encountered hardware defect module GPS. If the satellites are not at all (even in open areas) after calibration, the antenna or motherboard may need to be replaced.

🔍 Check the case: metal or magnetic cases can shield the signal. Take it off and repeat the test.
📡 Test in different conditions: in the city GPS It can be bugged by high-rises, and in the forest by thick foliage.
🔋 Check the battery: if the battery is swelling, it can press on the antenna GPS, signalling.
🛠️ Reset network settings: Settings → SIM-maps and mobile networks → Resetting the network settings, which will remove the stored access points and connection parameters that may conflict with the network. GPS.

If neither method works, there are two options:

Xiaomi has official SCs in most major cities, GPS diagnostics are usually free, and repairs cost 1,500-3,000 rubles (depending on the model).
Buy outside GPS-For example, Bad Elf. GPS Pro or Dual XGPS150A Bluetooth is used to provide accuracy of up to 2-3 meters, and is relevant for travelers or professional drivers.

FAQ: Frequent questions about GPS on Xiaomi

Can you calibrate GPS without an engineering menu?

Yes, with applications like GPS Status & Toolbox or GPS Test, which provide similar features (A-GPS reset, satellite test) in a more user-friendly interface, but deep tuning (like changing NMEA settings) will still require an engineering menu.

Why does GPS only work with mobile internet?

You may have a high-precision mode turned off or A-GPS settings are lost. In this mode, your smartphone uses not only satellites, but also cell tower and Wi-Fi data to determine your location. Without the Internet, accuracy drops to 50 to 100 meters. Also check if MIUI blocks background activity of navigation applications (in battery settings).

How to check how many satellites my Xiaomi is seeing?

There are several ways: through the engineering menu (instruction above); through the GPS Test app (shows the number of satellites, their signal and their location on the celestial sphere); through Google Maps: click on the blue dot of your location, you will display an error in meters and the number of satellites (if there are less than 5, the accuracy will be low).

After the MIUI update, the GPS stopped working.

This is a common problem, especially after major updates (e.g., from MIUI 13 to MIUI 14). Try: Reset A-GPS data (via an engineering menu or GPS Status); Clear the cache and data of Google Play Services; roll back to the previous version of MIUI (if the problem is critical); wait for a patch from Xiaomi (usually released within 1-2 weeks after mass complaints); If GPS does not work only in one application (e.g., in Yandex.Navigator), update it or reinstall it.

Can a magnetic case affect GPS?

Yes, and this is one of the most common reasons why Xiaomi's GPS doesn't work well: Magnets in cases (especially smart case models) interfere with the antenna. Try removing the case and testing the GPS in the open. If accuracy improves, accessory problems. Alternatively, use cases without metal inserts or with minimal magnets.