When you're in a hurry, you open Google Maps on your Android phone and the blue dot keeps jumping around; the experience can be maddening. It might point to the street next door, or the arrow might be pointing in the opposite direction… This is usually due to a… poor GPS or compass accuracy of the phone, but luckily there are many ways to improve it.
On Android, location no longer relies solely on traditional GPS: the system combines satellites, Wi-Fi, mobile networks, and internal sensors to determine your location. With a few well-executed settings, some calibration, and by avoiding some common pitfalls, you can achieve... Google Maps is much more accurate and reliable, both in the city and in complicated interiors.
How does precise location actually work on Android?
To understand how to improve it, it's first helpful to know what's happening behind the scenes. On Android phones with Google Play Services, the system uses a specific service called "location accuracy" (formerly "Google Location Services"). This service is not limited to GPS, but combines several sources to estimate your position.
On one hand, they are used wireless signals that your device is capable of detecting around you: WiFi access points, cell towers, and, of course, GPS satellite signals. On the other hand, the internal sensors of the mobile phone, such as the accelerometer, gyroscope or barometer, which help to further refine the calculation of position and altitude.
Thanks to that combination of sources, your device can determine where you are. faster and with better accuracyespecially in situations where pure GPS doesn't work well: indoors, underpasses, narrow streets between very tall buildings, or areas with poor satellite coverage.
When you have location accuracy enabled, the system uses all available sources: GPS, WiFi, mobile network and sensorsThis even allows estimating height levels (for example, if you are on a high floor of a building) and providing more useful location data to the applications you have given permission to.
What data is used and how does Google handle it?
To improve the overall accuracy of the system and apps, Google periodically collects information about the wireless signals and sensors which your phone detects when location accuracy is enabled. This creates large databases that help any Android device to locate itself more accurately using those same signals.
The data collected may include nearby WiFi networks, mobile network towers, GPS signal, information from sensors such as accelerometer, gyroscope or barometer, IP address, device model and your location settings preferences.
To protect your privacy, Google doesn't link all this information to your real identity: it uses a temporary and rotating identifierThis identifier is randomly generated and not associated with any specific person or account. It changes automatically and is deleted after a short period (for example, a few days), reducing the chances of someone being identified from this data.
In this way, many mobile phones can report that they have seen a certain WiFi access point in the same area where they received a good GPS signal. With that information, Google deduces that the Wi-Fi is near those GPS coordinates, but without knowing who the users were who reported it or which account they belonged to.
Using precise location data, Google creates and maintains a collective database of locations of WiFi signals, cell towers, and other elements. This database is used by Android devices to improve their location, even in areas where GPS is unreliable. Additionally, anonymous usage metrics are recorded to enable detect and correct faults in the system, adjust algorithms or improve performance.
Legally, Google justifies this data processing based on legitimate interests: improve and maintain its services, offer more accurate location-based features, validate the quality of map information (such as building entrances and routes), and allow third-party developers to offer apps that rely on reliable location.
What happens if you turn off location accuracy?
When you disable this feature, the device stops using WiFi and mobile networks to calculate your location and only uses the GPS and physical sensors from the phone. This has two clear consequences: your location becomes slower and less accurate, and some navigation apps or map-based services may start to fail or behave erratically.
Furthermore, with location accuracy disabled, the phone Stop sending to Google Wireless signal and sensor data are used to feed the collective database. However, there is one important exception: in emergency situations, emergency location services or your own operator will use this information. They can continue using the best available location. (including extra accuracy) so that emergency services know where you are when you call or text a help number.
On devices with Android 12 or later, there is another separate option: precise location by applicationEven if you have device location accuracy enabled, you can tell a specific app to only use your approximate location, which limits the level of detail it gets. If you disable global accuracy, then no app will be able to know your exact location.
Google Play services and location permissions
Google Play Services is the Android component that enables a lot of internal features and helps make the phone... safer and more stableLocation accuracy is part of these services, so it's normal for this layer to have advanced permissions and be able to periodically access your location.
Google Play Services may use your location in the background to gradually improving accuracy general and feed the databases used by all devices. Although it may sound intrusive, this operation is part of the system and is detailed in Google's privacy policy, which explains how the data is collected, anonymized, and stored.
How to enable or disable location accuracy on Android?
If you want to control this setting on your Android phone, the process varies slightly depending on the system version. Android 12 and laterAs well as on some connected devices like the Fitbit Ace LTE, the general path is:
You open the device's Settings app, and go to the section of LocationThen go to Location Services and look for the Location Accuracy option. From there you can turn the "Improve location accuracy" option on or off, depending on your needs.
En Android 11 and earlier versions The steps are very similar, although the menu might be called Advanced Settings within Location. Again, you'll find the location accuracy option and can decide whether you want the phone to rely on Wi-Fi, mobile networks, and sensors for more precise location tracking, or to stick to standard GPS.
Set GPS to high accuracy and fine-tune Google Maps
One of the most common mistakes is having the GPS working in a low-demand mode. On Android, if you don't configure location permissions correctly, Google Maps may not use all the information available and end up guiding you inaccurately. The first thing to do is make sure the app has permission to access your precise location.
To do this, go to Settings, then to the section of LocationYou look for Google Maps in the list of apps that use location services and check its permissions. It's recommended that it's allowed access at all times, or at least while you're using it, and that the "use precise location" option is enabled. This makes all the difference between your phone having a general idea of ​​your location and it placing the blue dot practically at your doorstep.
If after adjusting these permissions the location still fails, it never hurts to try again. reboot the phoneSometimes, due to cached data, background processes, or minor system instabilities, the GPS may not behave as it should. A restart clears processes, resets connections, and helps the location module start up "from scratch."
Calibrate the compass and location in Google Maps
Even if the location is correct, it is very common for the arrow orientation It might be wrong. That's due to the compass (the phone's magnetometer), which needs to be calibrated periodically, especially if you've been near strong magnetic fields or are using cases with metal components.
To calibrate the compass on Android, open Google Maps and locate the blue Point It shows your location. Tap on it, and if the app detects low accuracy, it will usually offer you the "Calibrate" option. If it doesn't appear, you can look for the corresponding button at the bottom of the screen.
Once pressed, Google Maps itself displays the instructions on the screen: you will usually have to do a figure-eight movement With the phone in the air, keeping it pointed in the same direction as the gesture. After a few seconds, the app will tell you if the compass accuracy has changed from low to medium or high.
On some devices, Google Maps also relies on the function of Live ViewYou use the camera to scan buildings and the surroundings, and with that visual information, the app corrects the orientation. This is especially useful in large cities, where GPS signals often bounce between building facades and the arrow goes haywire.
Other important adjustments in Google Maps for Android
Aside from calibration, there are a few adjustments and best practices worth reviewing. First, make sure you have a stable internet connectionWhether it's WiFi or mobile data, because Google Maps relies on the network to download updated maps, check signals, and improve positioning using nearby networks.
Having the app is also a great idea. always updatedFrom the Google Play Store, search for Google Maps and check for any pending updates. New versions often fix positioning errors, adjust how location sources are combined, or improve battery life when GPS is active.
If the app continues to give you problems, you can go to System Settings, then to Applications, find Google Maps, and open the section for Storage Try clearing the cache first. If the problem persists, clearing the app's data might help, although in that case you'll have to log in again and configure certain preferences.
Control app permissions and parental controls
In modern versions of Android, each app decides what level of access it has to your location. If you've granted a maps or navigation app access to your location, you'll need to set up a map or navigation app with the appropriate permissions. denied permitsEven if your GPS is working perfectly, it won't pinpoint your exact location. It's a good idea to review the permissions for the apps you use for navigation.
The usual process is to go into Settings, then go to ApplicationsSelect the app that's malfunctioning (for example, Google Maps or any other navigation app), tap on Permissions, and check that it has access to your location. There you can allow it always, only while using the app, or block it, as well as enable or disable precise location tracking.
Another point that is sometimes overlooked is the parental control or the digital wellbeing features. On many devices, when you activate these systems for children or teenagers, several of the phone's capabilities are limited, including access to your exact location. The intention is to protect the child's privacy, but in practice, it can block the GPS from working properly.
To check this, go to Settings, look for the section on «Digital well-being and parental controls» (or a similar option) and check if there's a child profile or active restrictions. If there are, you can temporarily disable them or adjust the settings to allow certain apps to use precise location and GPS without restrictions.
Use internal mobile diagnostic tools
Many manufacturers include it in their customization layers diagnostic tools These tools allow you to quickly check if any components are malfunctioning. Brands like Samsung, Xiaomi, OPPO, and others often include a phone manager or security app with a built-in testing section.
These applications usually have a menu of device diagnostics It checks the screen, battery, connectivity, and, in some cases, the GPS module and related sensors. If there's a software glitch, these tools can detect it and apply minor automatic adjustments that significantly improve accuracy without you having to do anything unusual.
System update: patches that improve GPS
It's not uncommon for a mobile phone to be released with the Poorly optimized GPS And that, over time, the manufacturer will release patches that fix those problems. That's why it's important to keep the system up to date. Sometimes a simple security update includes improvements to the location algorithms or the modem's firmware.
To check this, go to Settings, then to the section of System Or go to "Phone information" and look for the "Software update" or "Check for updates" option. If a patch is available, install it and test the accuracy of Google Maps again, as these changes may fix many of the location errors.
External applications for calibrating and testing GPS
If you still have doubts after all that, you can use third-party apps designed for Test and optimize the GPS of the device. There are many on Google Play, but some are especially well-known and useful for detecting problems or recalibrating the compass.
One of the most popular is GPS Status & ToolboxThis application shows in real time which satellites you are seeing, the signal strength, approximate accuracy, altitude, speed, and direction. It also allows you to calibrate the compass and Reset A-GPS dataThis helps the mobile phone download information from the satellites again and locate itself faster, which is especially useful if you move around a lot between very different geographical areas.
Another interesting tool is GPS Test Plus NavigationIt offers bar graphs showing the signal strength of each satellite, a sky view with its position, and a highly detailed compass. It includes features such as a speedometer, altimeter, and a HUD mode to project data onto the windshield. It also allows you to control waypoints in GPX and KML formatsThis is useful if you go hiking, off-roading, or do other outdoor activities.
Finally, you can use GPSLocker If your problem is that your phone loses GPS signal in the background, this app keeps the connection to satellites active even when you switch apps or turn off the screen, and can automatically restart A-GPS data. It's very useful for location-based games or navigation apps that you use with the screen locked.
Physical factors and everyday errors that worsen the signal
It's not all software. Sometimes the culprit is as simple as a case too thick or with metallic parts. These elements can interfere with the compass or hinder the reception of the satellite signal, causing the GPS to take longer to acquire a fix or make larger errors in orientation.
The environment you're in also has a big impact. Inside large buildings, shopping malls, tunnels, subway stations, or areas with very thick wallsThe GPS signal doesn't reach well or bounces off surfaces, causing significant errors. In the subway or underground, you simply won't have a reliable position until you surface.
If you're experiencing serious location issues on those sites, the best thing you can do is go outside and wait a few seconds for the phone to regain visibility from several satellites. Once outside, the position usually stabilizes and the Google Maps arrow becomes much more reliable, provided the rest of the settings are configured correctly.
When nothing works: possible GPS hardware failures
If you've checked permissions, calibrated the compass, updated the system, tested test apps, and Google Maps is still failing If the problem persists, it may not be in the software, but in the mobile phone's GPS module itself.
The GPS is a small piece of hardware, usually integrated into the modem assembly or motherboard, that is responsible for receive and process satellite signalsIf it is damaged, subject to poor contact, or defective from the factory, the accuracy will be very poor or nonexistent, no matter how much you adjust the settings.
In that scenario, it is advisable to contact the Official technical service from the manufacturer. They can perform more advanced diagnostic tests and confirm if there is a physical fault. If the phone is under warranty, repair or replacement is usually covered, provided there is no visible damage from impacts or moisture.
If the phone is no longer under warranty, replacing the GPS module is usually a delicate operation: the device must be opened, several internal parts disassembled, and the part replaced with a compatible one. This requires experience, specialized tools, and time, so the cost can easily be quite high. between 100 and 150 euros or more, depending on the model and the availability of spare parts.
When Google Maps can't pinpoint your location or the arrow is erratic, you can almost always improve the situation by adjusting location accuracy settings, calibrating the compass with the appropriate gestures, reviewing permissions and parental controls, keeping your system and apps updated, and, if necessary, using external tools to check the GPS status. Only when all of this fails does it make sense to suspect a hardware problem and contact technical support to have the phone's location module checked. Share this information and help other users improve their GPS on Android.