Geolocation doesn't work well. Correctly setting up GPS on Android

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The benefits of the GPS function implemented in the iPhone can hardly be overestimated - with its help it is easier and easier to get to your destination using software navigator, it is essential when playing Pokémon GO and allows applications to track the user's location. However, like any other system, GPS can fail.

Why did GPS on iPhone suddenly stop working?

The most common problems with GPS:

Absence GPS signal;
GPS does not update current location;
GPS shows incorrect location;
The compass points in the wrong direction;
Applications cannot determine your current location.

Of course, the list goes on, depending on how and where you use your iPhone. Additionally, problems may arise due to applications using different GPS function. Sometimes the error message does not appear at all, which makes it much more difficult to find and fix the cause of the problem.

“Find Friends,” or how to view the location of friends on iPhone and iPad.
Orientation with iPhone: How to determine azimuth in the Compass application.

How to fix the most common GPS problems

Below is a number of solutions to the most frequently encountered problems implemented in iPhone function GPS.

Check GPS signal

In order for the GPS function to work properly in applications, a good radio signal is required. Problems with GPS may occur if you are in a building, basement, or some other place that does not receive a radio signal. In this case, you need to leave the building or move somewhere else so that the device can receive a signal from the satellite.

Check if apps are granted permission to use location services

Very often, users simply forget to activate the Geolocation function in applications. For example, you won't be able to see your location on Maps or other mapping services unless you've given the app permission to use geolocation functionality.

To check whether applications have the appropriate permission, go to Settings -> Privacy -> Location Services.

You can prevent some apps from using location services. You can also allow apps to receive location data always or only while they are running (including in the background).

Please note that some applications require permission to use location services at all times. If you select the option to only receive data when the program is open, the GPS function will not work correctly. Make sure the settings for each application are correct.

Turn location services off and on again

Sometimes the cause of problems with the GPS function is just a small glitch in operation software. In this case, you need to disable and re-enable location services. To do this, go to Settings -> Privacy -> Location Services and move the switch to the left, and then to the right again.

You can also turn all wireless services off and on by deactivating and activating Airplane Mode in Control Center.

Reset all geolocation and network data

If none of the above methods work, then the problem is related to geolocation and network information. In this case, it affects not only the GPS function, but also cellular communications.

You can fix the problem by going to Settings -> General -> Reset and clicking on “Reset network settings” and “Reset geo settings”.

Each time you click on “Reset” you must enter a password, after which the information will be completely deleted. Next you need to reconnect to Wi-Fi networks and install everything necessary settings to access the wireless network.

Restart or restore your device in iTunes

In some situations, the only solution to the problem is reboot iPhone. Even if the method described above did not work, all that can be done is to restore the device through iTunes (instructions).

The presented methods should help solve problems with GPS. In case of failure, you should contact service center, perhaps in your case there is a hardware problem.

Based on materials from yablyk

04.10.2018

Mobile devices and tablets are incredibly easy to use and have the widest functionality, allowing them to replace many other devices with a narrower specialization. Thanks to the presence of a GPS module, the gadget is able to establish communication with special satellites, making it possible to determine the location of the device, as well as navigate on maps.

Problems with GPS

Quite often you can encounter a situation where GPS does not pick up on Android. This greatly limits functionality smartphone or tablet and makes their use less convenient.

Since there are two GPS technology connections, it is advisable to understand their differences. The classic version involves establishing a connection with satellites, with the help of which the coordinates of the device are determined. A GPS involves, in addition to connecting with satellites, also connecting to cell towers, which allows you to determine the user’s location more accurately.

Despite all the differences, both of these technologies are characterized by the same reasons that prevent correct operation. These include:

Incorrect connection setup;
The GPS module is faulty;
Surrounding objects are interfering with the connection or the user is indoors.

The last point is especially important, since novice users quite often forget about the features of a satellite connection, which certainly requires the absence of obstacles in the signal path.

Troubleshooting

Before checking the functionality of the module, it is recommended to check whether it is enabled on the device at all. Some users who are not familiar with the operating features of Android smartphones quite often disable the module itself or the reception of geo-data, which makes establishing a connection between the satellite and the gadget impossible. Some applications remind you of disabled functions, allowing you to quickly restore normal work GPS.

IMPORTANT! If the module has lost its functionality, then the most reasonable option is to contact a service center, since it is not possible to fix such a malfunction on your own.

In some cases, if the connection settings are not configured correctly, you can solve the problem. The same applies to situations where, after any changes in the settings, the device module has lost its functionality.

Some owners of Android smartphones often encounter the problem that the GPS module cannot catch or takes a very long time to catch GPS navigation satellites. This mainly happens with phones that were brought from China or purchased from Chinese sites such as Aliexpress and they were not fully customized to Russian conditions.

The first thing we should do is go to the settings of the smartphone and go to the tab My location. Turn on GPS and check the boxes opposite, By GPS satellites And By network coordinates. If you have more Extra options settings, such as EPO parameters then put a tick in front of the item, go down to the bottom and press the button download.

Next we need to go to the engineering menu, you can find out how to do this from the article “Engineering” Android menu". In the engineering menu we go Location - Location Based Service - EPO and bet against the parameters Enable EPO And Auto Download checkboxes, if you don’t have these parameters, then they are by default and hidden from your eyes.

We return to Location and go to the section YGPS and on the tab INFORMATION press the buttons sequentially fuii - warm - hot - cold And AGPS restart This is done to reset the old almanac, and in order for us to record a new almanac, we go to the tab NMEALOG and press Start to record a new almanac.

Go to the tab SATELLITES and we see that we have several red satellites on the radar. After some time, from 5 to 30 minutes, some of the satellites should turn green, and signal strength scales will appear below, this means that your phone has established a connection with these satellites. You need to catch satellites on the street and preferably away from houses, since indoors the signal is extinguished and it is almost impossible to catch them.

If after a while the connection with the satellites has not been established, then the problem lies deeper and in order to fix it, you will need root rights on your smartphone. How to get root We read the rights in the article “Opening root rights in Android”. Rights root we need to edit the file GPS.conf. So using file manager which works with root(I used Root Browser) go to the root directory of the phone and look for the file at the following address system - etc - gps.conf. By using text editor open the file gps.conf and look at what’s there, this file stores the addresses of the satellite servers, but for some reason it turned out to be empty for me. If yours is also empty or there are some addresses of other countries, then we change the contents of the file to the settings we need, save, close and reboot our smartphone.

NTP_SERVER=ru.pool.ntp.org
NTP_SERVER=0.ru.pool.ntp.org
NTP_SERVER=1.ru.pool.ntp.org
NTP_SERVER=2.ru.pool.ntp.org
NTP_SERVER=3.ru.pool.ntp.org
NTP_SERVER=europe.pool.ntp.org
NTP_SERVER=0.europe.pool.ntp.org
NTP_SERVER=1.europe.pool.ntp.org
NTP_SERVER=2.europe.pool.ntp.org
NTP_SERVER=3.europe.pool.ntp.org
XTRA_SERVER_1=/data/xtra.bin
AGPS=/data/xtra.bin
AGPS=http://xtra1.gpsonextra.net/xtra.bin
XTRA_SERVER_1=http://xtra1.gpsonextra.net/xtra.bin
XTRA_SERVER_2=http://xtra2.gpsonextra.net/xtra.bin
XTRA_SERVER_3=http://xtra3.gpsonextra.net/xtra.bin
DEFAULT_AGPS_ENABLE=TRUE
DEFAULT_USER_PLANE=TRUE
REPORT_POSITION_USE_SUPL_REFLOC=1
QOS_ACCURACY=50
QOS_TIME_OUT_STANDALONE=60
QOS_TIME_OUT_agps=89
QosHorizontalThreshold=1000
QosVerticalThreshold=500
AssistMethodType=1
AgpsUse=1
AgpsMtConf=0
AgpsMtResponseType=1
AgpsServerType=1
AgpsServerIp=3232235555
INTERMEDIATE_POS=1
C2K_HOST=c2k.pde.com
C2K_PORT=1234
SUPL_HOST=FQDN
SUPL_HOST=lbs.geo.t-mobile.com
SUPL_HOST=supl.google.com
SUPL_PORT=7276
SUPL_SECURE_PORT=7275
SUPL_NO_SECURE_PORT=3425
SUPL_TLS_HOST=FQDN
SUPL_TLS_CERT=/etc/SuplRootCert
ACCURACY_THRES=5000
CURRENT_CARRIER=common

Next, you will need to repeat all the manipulations with the engineering menu and on the tab SATELLITES Let's see how our smartphone catches satellites. All the above actions helped me and the phone immediately began connecting with 6-10 satellites.

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Many phone owners operating system Android is faced with a problem when the built-in GPS module refuses to find GPS satellites or finds them, but cannot connect. There may be several reasons for this behavior of the module, let’s consider the main ones:

The parameters for connecting to satellites are entered incorrectly in the settings file;

An A-GPS module is installed, which often does not find satellites on the phone on its own;

The module is not working.

I would like to sort out the problem with A-GPS ( Assisted GPS) module, since Chinese phones, which have it in 98% of cases, are now extremely popular and are pushing global brands out of the market.

How does A-GPS work?

The main difference from the standard GPS module is that it connects not only with satellites, but also with mobile operator towers, which significantly improves the quality of location determination. When this function is enabled, the phone often cannot connect to GPS satellites itself and requires “ Full restart", even if it was just turned on. This is not a problem with Chinese phones themselves, namely A-GPS module, which costs pennies compared to GPS, so it works accordingly. Let's figure out how to set up GPS on Android.

How to determine whether an A-GPS or GPS module is on your phone?

If you have a phone with two SIM cards and made in China, with a 99.9% probability you have A-GPS. But to make sure of this, you can go to engineering menu. This will begin the process of fixing the issue of a broken connection with satellites.

To enter the engineering menu, you need to dial the following number in your phone: *#*#3646633*#*#. If the combination does not work, you can try entering *#15963#* or *#*#4636#*#*, however, in this case your menu may be different.

After entering the phrase, you are automatically taken to the engineering menu and will see a window with the following content:

You need to move to the left, scrolling through the settings pages to the “Location” tab.

Now select the first option “Location Based Service”. If you have the A-GPS tab, then follow the further settings. Otherwise, this article will not help you much.

Setting up GPS on Android

If you have an A-GPS tab, go straight to it. You should have a window that looks like this:

Compare the settings with yours, adjust if necessary, according to the screenshots:

If everything is written correctly, you can go back one level to selecting the “Location” items and go to “YGPS”.

Here you see that your GPS module does not find satellites, or rather, it finds, but does not connect due to incorrect inclusion:

You need the "Information" tab. The main manipulations will be carried out in it.

As you can see, the status is “UNANVAILABLE”, and TTFF is stuck forever searching. No matter how long you wait, nothing will change.

The essence of the correction eternal search is to do a “Full” reset, and then, after 2-3 seconds, click on “A-GPS Restart”. Those. you reset the frozen search process to zero, thereby overwriting everything previously specified settings, and immediately reboot the module. Not having time to catch standard configuration(incorrect), module with clean slate finds all satellites.

After 10-20 seconds, you will see satellite signals on the “Satellites” tab, and after another half a minute the module will successfully connect to them.

The search was done from the 1st side of the house, on the balcony, respectively; nothing was found on the second hemisphere. You will find all your companions on the road.

Navigation applications installed on smartphones with the Android operating system allow users to plot driving, cycling or walking routes, as well as monitor their own location on the map.

Mobile devices with installed GPS/GLONASS chips are in particular demand among potential buyers. But, sometimes it happens that GPS on Android does not work. In this case, you need to figure out what the main cause of the breakdown is and how to configure the modules so that they correctly perform the tasks assigned to them.

The main reasons for GPS module failure

If GPS does not work on Android, you should check whether the navigation module in your phone is disabled. This mistake is most often made by novice users who have not yet fully understood the operating principles of Android smartphones.

In order to cope with this problem, you should use your finger to slide down the top curtain, which hides various shortcuts and notifications. Find the “Location” item in the proposed menu and activate it. When it becomes active, its color will change to green, bluish and so on.

Activate GPS on Android to find your location

After the “Location” item becomes active, you can start launching the navigation program.

It is worth noting the fact that developers take into account the interests of users, so many popular apps report that geodata is disabled.

As an example, we can note the Navitel application, which informs users that they do not have a connection to GPS modules.

It may be that the user has activated geolocation in the smartphone settings, installed all the necessary navigation applications, but positive results it never came.

In this case, the reason may be hidden in banal impatience. When starting GPS/GLONASS modules for the first time, you should wait at least 15 minutes. During this time, the smartphone will be able to process information about which satellites are active in a given area. Other launches of the navigation program will occur much faster.

A similar problem may arise if you arrive in another city or country with your phone turned off and decide to use geolocation. You should wait 10-15 minutes so that your Android smartphone can calculate its location. This behavior is called a “cold start”.

So, above are the main reasons why GPS does not work on Android. But they do not limit the list of all possible malfunctions. It is worth noting several more factors due to which GPS modules may not work:

The user tries to perform “ cold start” while the vehicle is moving. You shouldn't do that. You need to stop, get out of the car, preferably into the most open area, and try to activate the GPS modules again.
GPS does not work on Android not only when traveling in a car, but also inside buildings.
There are certain areas where signal reception is difficult. This may be due to the presence of rocks, tall buildings, and so on in the immediate vicinity. In this case, you should find the highest possible area and try to find the satellites by climbing onto it.

If the navigation does not work after active attempts to configure it, then you need to seek help from professionals working in the service center. This state of affairs clearly indicates the presence internal breakdowns. And also, if you don’t have time to go to a specialist service center, then try resetting your phone to factory settings.

You can check the quality of signal reception from satellites using GPS applications Test from Chartcross Limited. If the GPS chip is working and geolocation is turned on, a sky map will appear on the screen indicating the locations of active satellites.

How to configure the GPS module on a smartphone?

Many users are interested in how to configure GPS modules on Andrid. There are no specific settings options in this case. But, if you wish, you can experiment a little using standard methods detection. There are the following factors for the operation of location detection:

High accuracy. With this parameter, location detection occurs using all possible wireless modules. It uses not only GPS/GLONASS, but also Wi-Fi and a telephone network.
Economy mode. Location search occurs via mobile networks and Wi-Fi module.
Only GPS modules. As the name implies, location search occurs only with the help of satellites.

In order to specify the method used for detecting a person’s position in space, you should go to the “Settings-Geodata” menu. Don't forget to work with GPS navigation install functional and easy-to-use software. To do this, you can download from the network or use paid products from leading global companies.

Conclusion

In conclusion, it is worth noting that if GPS does not work on Android, you should not despair. You may be in too much of a hurry to allow the app to communicate with satellites.

If the problem is not resolved after fulfilling the basic conditions, you need to contact the service center for help.

Modern gadgets are already so sophisticated that you can determine your location without resorting to GPS navigators anymore. Sometimes this is necessary for correct operation applications, sometimes to create the right route. When GPS doesn't work on Android, it becomes difficult. What could be the reason for this and what should be done to solve this problem?

Any device receives poorly or does not receive satellite signal in general, if it is located indoors. Therefore, it is better to determine your location on the street. Ideally, the space should be free even from tall buildings and trees, so that the sky is completely open, so that nothing prevents the gadget from searching for a working signal and connecting to the necessary satellites.

Incorrect GPS setting

All devices are equipped with two GPS modules. One is a standard receiver, which can be enabled in the settings (General - Location - Mode). When choosing mobile networks or Wi-Fi device will determine location from towers without connecting to GPS satellites. This method is the fastest, but it does not always give an accurate result.

When you select the “GPS Only” mode, the phone or tablet will connect to the satellites, but this will take the device some time. In this case, it is advisable to be outside in an open area or at least put the gadget on the windowsill. It is for the operation of the second module that the correct configuration is needed. How to check if the device receives a signal? To do this, you will have to download and install GPS Test, a diagnostic application.

After starting the program, select Update only in the AGPS settings, and Keep Screen On in Settings. Now you need to return to the main program window, the GPS test on your tablet or phone will begin. It is important that Wi-Fi and mobile data should neither be enabled in the Location settings nor currently in use.

If diagnostics show that the device does not find satellites, then you should check whether the GPS settings on Android are correct. How to set up GPS? To do this, you must first download any application that can process the GPS signal. If it does not help, you need to check the settings of the COM port of the communicator.

Unsuccessful flashing

After not the most successful attempts to flash a gadget or specifically a GPS module, not only the system, but also simply its individual parts, for example, geolocation, may stop functioning. There is also a frequent cessation GPS operation on a Chinese device.

To correct this situation, you need to enable AGPS in the location and GPS settings. After this, you need to enter the engineering menu through the dialing window (the combination is different for all phones). If you can’t enter it, you will have to use any special program, but with root rights. Procedure in:

On the Satellites tab of the YGPS tab, check if there is a signal, i.e. does the phone or tablet even try to find satellites;
go to the Information tab and there, in order, press the buttons full, warm, hot, cold (this is necessary to reset previous settings);
on the NMEA Log tab, click start;

The GPS module in your phone allows you to use navigation applications such as Google Maps, and location services. And a good signal is crucial not only for navigation, but also for augmented reality games like Pokemon Go. If you are experiencing problems with this on your Android phone, then check out our tips to help improve the GPS signal on your Android device.

What is GPS?

To know how to optimize the performance of the GPS module, you need to understand how it works. GPS stands for Global Positioning System, that is, a global positioning system. It was developed by the military, but later began to be used for civilian purposes. GPS originally used 24 satellites orbiting planet Earth, but the number has now increased to 31.

Your smartphone communicates with these satellites through a special antenna that is part of hardware in most modern mobile devices. Naturally, the hardware is controlled by software through the driver. Thus, there are three sources of error for the GPS signal in a smartphone:

Number of available satellites at current location
The quality of the antenna that is inside the smartphone
Driver implementation in the Android operating system

Switch to High Precision mode

To get the best signal, you should be prepared for the battery life of your device to be lower than usual. It's a necessary sacrifice, but you can still change the settings back when you don't need to pinpoint your location. For example, when you play Pokemon Go. It's very simple, follow our instructions in the instructions below.

Open Settings, go to Location and make sure location services are turned on. If they are turned off, then click on the switch on the right top corner.

At the very top, under this switch, there is a menu with mode selection. Tap on it and make sure that the “High accuracy” option is selected. This means that the built-in GPS, Wi-Fi and mobile network will be used to determine your location. This may increase power consumption, but the detection accuracy will improve significantly.

Make GPS always active

To save battery power, the GPS module can be turned off when not in use. If, for example, you are playing Pokemon GO and at that moment you want to read a new message, then the GPS will turn off for this time.

One way or another, you can force it to always be active, but this is not difficult to do. You need to install one application from Google Play Market, and it will do everything for you. We recommend Connected GPS because it's the easiest to use. Keep in mind that this can be a real blow to the autonomy of your device.

Why might GPS not work?

With GPS Essentials you can diagnose the cause weak signal GPS. Problems may arise from hardware or software. On the main screen of GPS Essentials, find the “Satellites” item and go to it. The smartphone must connect to satellites available in Earth orbit.

If the phone has not found any satellites or cannot connect to them due to bad signal, then the reason for this may be interference from metal objects around you: the smartphone case or the module built into it simply does not work as it should. If the satellites appear, but the GPS is still not working properly, then the problem is in the software and we recommend using the next tip on the list.

Clear GPS data

Sometimes your device gets stuck on some GPS satellites, even if they are not within reach, which causes problems in the operation of the module. This can be corrected using another application - GPS Status & Toolbox, which clears GPS data and the phone can reconnect to satellites from scratch.

Install this tool and then run it. Press the “Menu” button, where you need to select “Manage A-GPS state”. Next, you need to click the “Clear” button, and after completing this process, return to “Manage A-GPS state” and click on the “Download” button. Everything after this GPS module should work like new.

Buy an external GPS receiver

If the GPS on your smartphone still does not want to work or its accuracy is not enough for you, then you can try an external GPS receiver. It can be synchronized with your phone via Bluetooth and charged with the same charger, which comes with the smartphone. The only problem in this case is the cost of an external GPS receiver, since good model you will have to pay about 6,000 rubles.

When the GPS navigator does not see or does not find satellites. This situation can be created for several reasons, among which the most common are the following:

navigation almanac failure;
device firmware failure;
technical features of windshields of some cars;
mechanical damage or failure of the receiving antenna.

To accurately determine the cause of the loss of communication with satellites, it is necessary to carry out appropriate diagnostics. Let's look at each of the reasons in more detail. incorrect operation navigator.

The navigator does not see satellites due to an almanac failure

The navigator operates in three location modes: cold, warm and hot start.

In cold start mode, the device does not have any information about its location. Therefore, searching for satellites in this mode takes longest time and is about 10 minutes, or even more. In this mode, the navigation device must receive an almanac and orbital parameters that allow the position of the satellite to be determined with high accuracy. Next, the device receives ephemeris - parameters that allow you to more accurately determine the position of the satellite and tie it to the exact time.

In warm start mode GPS navigator has in its memory a saved almanac that was received the previous time it was turned on, as well as information about binding to the exact time. The duration of the search for satellites in this case is reduced to several minutes.

The hot start mode assumes that the device has been turned off recently and the information about the almanac and ephemeris has not become outdated. In this case, the search time is reduced to 10–25 seconds.

It should be noted that the lifespan of the almanac is 2-3 months, and the ephemeris is only a couple of hours. After this period has expired, data on the ephemeris and almanac must be updated. Therefore, turning off the device for long time will cause the almanac to become outdated. Usually, after this, the navigator boots from a cold start and then operates in normal mode. But there are cases when, after a long shutdown, software failures occur that distort information and the navigator searches for a long time (several hours) and does not find its location. To bring such a device to normal mode During operation, it is recommended to leave it for several hours in satellite search mode, ensuring good visibility of the sky. A few hours of searching should bring it back to normal operation.

The navigator does not pick up satellites due to a firmware failure

Quite often, devices stop functioning normally and lose contact with satellites due to a failure of the installed software. To restore normal operation, it is recommended to flash it. Installing newer versions on the GPS navigator will provide it with more stable work, and will also allow the use of new functionality that was previously limited old version firmware.

Quite often, the reason that the navigator does not see or does not find satellites is the athermal device installed on the car. Windshield. This glass has a special composition that can jam the signal. In this case, the device can be installed in such a way that it can receive the signal through the side windows or orient it towards a special transmission “window”, which many manufacturers provide for their athermal glass.

Failure of the receiving antenna

One of the most serious reasons for losing communication with satellites is the failure of the GPS antenna. Navigators use two types of antennas - soldered to the board and external, connected to the GPS navigator separately. An antenna soldered to the board is more difficult and more expensive to replace, but this type of antenna fails less often. Replacing an external antenna is much easier. Besides this there is a lot external antennas are interchangeable, which simplifies the diagnosis of the device and the search for the necessary spare parts.

Availability of GPS navigator in Android smartphones or tablets will surprise no one. A GPS navigator on mobile platforms also has an advantage - it can work without connecting to a satellite, but only by working with mobile towers, but in in this case You can only get location coordinates. To globally determine your location, you will have to connect to satellites, as was the case with classic portable GPS.

GPS does not work on Android

In fact, there can be a lot of reasons why GPS does not work on Android, so we immediately rule out hardware failures (technical problems), only a service center will help here.

Incorrect GPS setting. This happens most often. can be read here. You can test the correct GPS settings using the application GPS Test
GPS does not work after flashing. In this case, the GPS settings are lost. How to return the settings - read the article at the link above, the article will contain a video in which everything is described in detail.
The initial connection to satellites has not been made. In remote areas, this process can take up to an hour. But to do this, you need to put your phone or tablet outside or on a windowsill. After binding, GPS will work faster.
Android GPS does not work indoors. More precisely, it can work, but rather weakly. To operate correctly, the GPS module must be outdoors and visible to the sky.
Hardware problems. If, after all the manipulations with the GPS settings, the module still shows no signs of life, then you should contact a specialist at a service center.

Android phones contain a GPS module that allows a large number applications to determine location and navigate the terrain. The functionality of a phone with GPS is greater than that of a standard external portable GPS. But they still need to be able to use it correctly, so that there are no questions about why GPS does not work on Android.

How GPS works on a phone

A little about how GPS works in a smartphone, so that you can understand what settings to set.

Android apps can find location using mobile network towers.

If you go to location settings Android phone, you will see two definition options to choose from. One definition is called a network position. This option calculates coordinates using towers mobile communications or via Wi-Fi. On to the pros this method can be attributed fast speed work, and the downside is that it is not an accurate indication of the location. More slow way- This satellite GPS navigation.

Android phones and tablets use Assisted GPS (aGPS).

This technology makes it possible to recognize satellite position, using the network and at the same time receiving data much faster.

Android GPS can work without a mobile connection.

You can hear from managers of various mobile networks that GPS does not work on Android if it is not in the zone mobile towers. Maybe, but this requires the correct setting of the satellite navigation.

When first determining a position (first fix) in areas that are too remote, it takes time.

This process can take from ten seconds to an hour in different places. The first time always takes longer, but with subsequent connections everything will go much faster

Cards matter when Android works GPS.

If you open Google Maps, without network connection, then the smartphone will display the error “This application requires active tariff plan" This also happens with other applications; if the application uses Internet maps, then it is necessary permanent connection to the network.

Android GPS should be able to see the sky clearly.

Few people know this rule. But those who have worked with portable GPS are familiar with this. Why doesn't GPS work? This is because these positions are transmitted from satellites, which means that the transmission quality will be better if the signal is not interfered with by floor slabs of houses or meter-thick layers of earth in the subway.

Android GPS drains your tablet or smartphone's battery.

Everything is simple here. Want to extend the battery life of your smartphone? Then turn off the GPS module. This also applies to other modules. Of course, no one can tell you exactly how long the operating time will last after switching off, but in any case it will not be superfluous if you do not use GPS too often.

These are the basic principles regarding the issue of how GPS works in a smartphone and tablet.