Download the program for the Android sensor. We check a used Android gadget before purchasing. How to find out the speed and accuracy of the GPS system

The rapid change in the dollar exchange rate has led to a significant increase in mobile gadgets. Today it is much more difficult to purchase a new smartphone with decent technical characteristics, so more and more people are postponing the purchase until later or purchasing used devices. However, when buying second hand, there is always a danger of purchasing a device with breakdowns or manufacturing defects. This article will give you all the tools you need to help you avoid the hassle of buying a used Android smartphone or tablet.

How to Check Your Screen for Dead Pixels and Other Problems

The screen of a gadget is one of its most vulnerable parts. The presence of cracks, chips, abrasions and other physical damage can be determined through a careful visual inspection. But to identify defective pixels and problems with the touchscreen, you will have to use special programs.

Display Tester

Using this program, you can detect various problems with the screen of a mobile device, including dead pixels or traces of the gadget being in liquid, which can only be detected using a special test. In addition, the program will provide you with much more detailed information about the display in use than you can find even in the most extensive technical description.

MultiTouch Tester

This program is well known and used by all mobile gadget testers. It will simply and clearly show you how many simultaneous clicks your device's touchpad supports. Particular attention should be paid to this parameter if you want to check whether they are trying to sell you a cheap counterfeit under the guise of a branded device.

Yet Another MultiTouch Test

A much more powerful utility for checking the operation of the sensor, which allows you not only to find out the number of simultaneously recognized touches, but also to identify “dead” zones of the touchscreen, if any. To do this, the program has a Paint Tester mode that allows you to draw on the screen. Simply draw a grid on the screen and immediately see whether all its zones have the same sensitivity.

How to check Wi-Fi operation

Today, quite often we come across devices whose designers, in an effort to achieve a spectacular appearance for the gadget, neglect the mandatory requirements for the layout of elements. For example, they shield the antenna of a wireless module with a beautiful metal frame, as a result of which such a smartphone or tablet can only work in the immediate vicinity of the router.

Wifi Analyzer

Wifi Analyzer will give you the opportunity to evaluate how your smartphone or tablet “sees” wireless networks and how well the corresponding device path is assembled and configured. In addition, you can at the same time find a free channel and determine the zone in your home in which signal reception is the most reliable.

How to find out the speed and accuracy of the GPS system

One of the most common problems you may encounter after purchasing a used gadget is that it is slow to detect your location. Accurate and quick determination of your coordinates depends on many parameters, including the chip used, Android version, firmware, and even the country of manufacture of the device. Therefore, we recommend that you pay special attention to this aspect when purchasing.

GPS Test

The main program for testing GPS operation, which should be installed on every smartphone. It will give you the opportunity to determine the time and number of satellites with which the device can establish a connection, the accuracy of determining coordinates, the ability to work with different geopositioning systems, the stability of satellite acquisition and other important parameters.

AndroidTS GPS Test

A worthy competitor to the previous program, which has approximately similar capabilities. In addition to testing all the parameters of a smartphone’s operation with satellite geopositioning systems, it can also be used as a regular tracker, since it has the function of recording your movements and can work not only with Google Maps, but also OpenStreetMap, BingMap and Yandex.Maps.

How to determine the health of the microphone, accelerometer, proximity and light sensors

Modern mobile gadgets acquire an increasingly extensive range of sensors every year. Some of them are used only in certain situations or are necessary for the operation of certain programs, so their breakdown or absence may not immediately be noticed by an inattentive buyer. To fully check all sensors of the device, there are several special comprehensive programs.

Sensor List

This program displays a list of all sensors that are present in the device, as well as graphs of their values in real time. You can check the operation of the accelerometer, magnetic field sensors, orientation, temperature, illumination, and so on, tracking changes in the signal coming from them depending on changes in external conditions. The latest versions also added support for checking battery status (temperature, voltage and charge percentage). Sensor List is ideal for demonstrating the capabilities of your new phone, as well as diagnosing hardware after an update or system restore.

Sensor Box for Android

If the graphs from the previous program seemed too boring and unclear to you, then Sensor Box for Android will help you test your gadget’s sensors in a more visual way. In fact, we have a collection of small utilities, each of which is designed to check one of the properties of a mobile device. For example, when testing the gyroscope, you will be asked to roll a ball across the screen, the orientation sensor is tested in a virtual level, and the action of the light sensor is demonstrated on a houseplant drawn on the screen.

Elixir 2

This is a real testing laboratory for smartphones and tablets running Android. It will help you collect the most complete information about the sensors present in the device and their serviceability. In addition, here you will find complete data about running processes, installed programs, operating system, shared libraries and much more.

The main feature of the application is the ability to create special widgets on the desktop that can show changes in the parameter you need in real time. A complete list of all the features of Elixir 2 would require writing a separate large article, so we recommend that all users who require the most detailed information about their mobile device should definitely pay attention to this program.

Of course, the best assistants when buying a used gadget are your attentiveness and common sense. Resist the temptation and remember that things that are too cheap usually cost too much later. We hope that the programs presented in this review will help you avoid mistakes and finally become convinced that your choice is justified.

(Touch screen calibration program). If your screen on your mobile device sometimes works poorly, then Touchscreen Repair can solve this problem. Over time, with active use, the touch screen of absolutely any mobile gadget deteriorates. You may notice sensory lags, he responds poorly or not at all. Touchscreen Repair analyzes the response time of the touch screen and makes it faster, thus restoring the functionality of your screen. The program takes 4 data values from 4 parts of the screen. Using three parts allows for greater accuracy. Based on this data, Touchscreen Repair calculates a faster response time and applies it to the touchscreen from the software side.

Peculiarities:

option to repair the touch screen, eliminate lags, increase sensitivity;
the process of typing on the virtual keyboard becomes simpler and easier;
makes touch screen response time faster;
fast and simple work process;
light weight of the application due to the absence of unnecessary graphics.

Download a program for touch screen calibration - Touchscreen Repair for Android you can follow the link below.

Developer: RedPi Apps
Platform: Android 4.0.3 and higher
Interface language: Russian (RUS)
Status: Free (Free, AdFree)
Root: Not needed

Failures in the operation of the Android smartphone's sensor are a common problem for not the most careful users. It is enough to drop your phone once, spill something on it, or sit down without noticing it, and there is a significant risk of damaging the touchscreen. If it is damaged, you will no longer be able to use the screen normally; typing a message or simply answering a call will no longer be possible. This smartphone is absolutely useless. That is why it is necessary to calibrate the screen to correct all problems. However, not all so simple.

To begin with, you should make sure as much as possible about the sensitivity of the sensor. To do this, remove the protective film, if any, and try to type a letter.

If touch recognition occurs incorrectly, for example, instead of one letter a completely different one is typed, then screen calibration is simply inevitable. This can be done in different ways, depending on the phone model, brand, and version of the Android operating system.

Today we will look at various calibration methods on different devices; you can try everything, depending on the situation.

How can I do this through the settings of the device itself?

Due to the fact that problems with calibration are a common problem for users, Android OS developers have added the ability to carry it out without installing unnecessary applications.

In order to go directly to the settings, you need to open general “Settings”, go to the “Display” section, and there we find an item called "Screen calibration". If there is no such item, then find a similar one; the name may differ on different devices and versions of the Android OS.

The calibration process itself is a small test where you need to touch the screen in different places. Once completed, the device will automatically remember the touches, after which the calibration can be considered complete.

Important. Upon completion of all actions, you should make sure that the touchscreen is accurate; depending on the result, calibration can be done again.

We carry out the procedure through the engineering menu

If you don’t know much about smartphones, this is probably the first time you’ve heard about this setup mode.

The engineering menu is a whole storehouse of a wide variety of configurations for your Android. Once in it, you can access all available configurations. This mode is suitable for users who like to fully customize this or that device for themselves.

So, what do you need to get into this very menu? First you need to open the dialing window and enter the following combinations there:

* # * # 3656633 # * # *
* # 15963 # *
* # * # 4636 * # *

Which combination is suitable depends on the smartphone itself.

If suddenly nothing works out, then in order not to suffer with input, you can simply download a special application from, it’s called MTK Engineering Mode Start. You can use it to perform various manipulations with your phone.

Closer to the point. Here we are in the engineering menu. Now you need to do the following:

Using apps

There are many programs that are designed specifically for sensor calibration. There are both paid and free versions. Some of them require Root rights on the device. Below we will tell you about several such applications.

To use this program you need root rights, so before proceeding with the settings, we should take care of this. We have already described how to get root rights on the pages of our website; information about this is freely available.

Primarily created for tablets. The procedure is carried out through the same test, but in addition can significantly improve not only the accuracy of touch recognition, but also improve overall performance and efficiency. This program is indispensable for some Android tablets with handwriting or drawing functions.

The interface is designed in such a way that you can figure it out intuitively, there are no complex settings, and the most ordinary user can figure it out.

It is capable of not only calibrating the touchscreen, but also measuring the tilt angle, tilt height, and the tilt of an object relative to gravity.

is an extremely useful utility that comes in handy at a time when your screen is not calibrated and begins to glitch. So be sure to use this utility if you experience problems with the touchscreen or other screen features. This is where the developers tried to make all possible tools so that you could debug your own mobile device.

That is why the program turned out to be so interesting and can help in various situations. Moreover, it can debug the screen even when other applications can no longer help. That's why users liked the app so much, because it really helps to customize the screen. The developers periodically update the program, so it only gets better.

Lots of adjustments to help you adjust the screen without confusing users at all. Read user reviews. They all rave about the program and ask for even more features. If you like to create something original, then this application will help you with this. Creative people will definitely like this synthesizer.

The result is high-quality software in which users can find unique options for debugging the touchscreen of their own mobile device. Moreover, the program does not differentiate between smartphones or tablets.

Calibrating the Android screen, or rather the sensor, is a typical task; it can be done through the engineering menu. Actions that relate to the formulation - calibrating the Android screen include setting up the touch-type display in order to properly execute commands by the device by touching the sensor with a stylus or fingers. Without such a setup, the device will work, but a number of undesirable consequences will arise when operating the gadget.

Some owners of devices running the Android operating system that are equipped with touch screens may sometimes encounter the unwanted problem of “disobedience” of the screen. In other words, when you touch a certain point on the touchscreen with a stylus or finger, the gadget perceives it as a completely different command.

Or there are situations when the sensor executes commands only after the third or fourth attempt. As a rule, the cause of these problems is the incorrect operation of the screen itself, for which it is necessary to calibrate the touchscreen of the device.

Urgent and correct calibration of the touchscreen on Android may be required in almost all cases if the smartphone has been dropped from any height, and after the device accidentally falls into the aquatic environment, this procedure is mandatory.

Also, calibration of the sensor on Android will be required after repair work on replacing the screen, the appearance of a water stain under the glass of the screen, and after suffering other, at first glance, minor damage.

To check the need for this procedure, you must perform the following steps:

Remove the special film protecting the screen (to ensure maximum correct operation of the sensor);
Enter any letter or number;
If there is a discrepancy between the button pressed on the gadget screen and the information typed, setting up the touchscreen is necessary.

Basic calibration methods

Two methods are used to bring a sensor-sensor that has been knocked out of its normal position into compliance.

These main methods include:

Using special programs for the Android system;
Self-correction.

It should be noted that for many brands (Samsung, HTC, Nokia and other Android devices) the calibration steps are practically no different from each other and are identical.

Manufacturers of Android devices, as a rule, can use two types of sensor:

Resistive (with a screen made using this technology, all sorts of problems very often arise, so the setting is more in demand here, but such screens are practically not used today - these systems can only be seen in budget or already outdated models);
Capacitive (used in most gadgets, it is more reliable and of higher quality).

Touchscreen calibration using Android

If you do not have access to the Google Play assortment, the display of your Android device can be configured in another way without any problems.

Step-by-step instructions in this case might look like this:

Go to the “Settings” menu in the gadget;
Select “Phone settings;
Find the inscription “Calibration, press the button;
A cross target with a dot inside will appear on the screen;
Click on this center of the target that appears at least three times.

After these steps, the device will automatically remember the touches. Thus, the calibration will be considered completed. After completing the setup procedure, you need to check the operation of the touchscreen by pressing a certain character on the screen, which should appear after its input.

Android screen calibration apps

You can configure the sensor using special software. The necessary software to successfully carry out this process can be found freely and freely available on the Internet.

The programs are quite simple to install and operate. But the most important thing is that you can get a positive and effective result from using almost any of them. In the Google Play store you can find free software applications such as Bubble and many others.

Application
The most popular screen calibration app on Android. Just a few taps on the smartphone screen and the screen is calibrated - you just need to restart the phone and enjoy the accurate operation of the device’s touchpad.

Application
This program has an excellent interface and also has some additional special features. Advantages of the application:

Bubble is a free program;
Works great with tablets and smartphones;
Advertising can be disabled in the settings, or it can be left to encourage developers;
Excellent graphics;
The presence in the application of a special display that displays the angle of inclination with the highest accuracy in fractions of a degree;
Easy to use;
Possibility to fix the angle with a gesture or click;
The presence of a sound signal at the zero position of the angle;
If necessary, the ability to lock the screen orientation (horizontal or vertical);
Ability to reinstall the application on the SD card;
Disabling, if necessary, the “sleep” mode while the program is running;
Using full screen mode.

Using the program is completely easy. To do this, after the initial launch, you need to select the type of device screen orientation in the settings (or set the “Auto” mode) and perform level calibration.
To do this, place the phone horizontally and press the calibration button on the left of the screen for a short time. “Calidbration” should appear on the touchscreen, and then “Wait”. The application will be ready to function when the screen displays a zero degree value.

The application is a program that allows you to configure the screen parameters of a touch device, while increasing its sensitivity and efficiency. Advantages:

When using a protective film on the touchscreen, this application can significantly improve the sensitivity of the sensor;
The slowing effect of using a protective film is eliminated;
When using a device such as a stylus, some kind of tuning of the gadget becomes simply necessary with the help of this program. Using this application, you can enable complete ignoring of even palm touches (after setting, the hand can rest on the screen when using the stylus);
If you need to use different settings, you can create separate shortcuts to quickly launch the application;
The application has a free version.

The program is a professional tool for fine-tuning the level on an iPhone or iPodTouch. The application is used to solve ordinary problems or in more complex areas of use where the tilt of the device needs to be measured quite accurately. Advantages:

The possibility of full-screen mode, which allows you to switch by clicking on the lower and upper arrows located in the middle of the gadget screen;
Advanced two-way calibration allowing adjustments on surfaces that are far from level. Any direction is calibrated separately in order to obtain the required accuracy;
Possibility of free download;

Possible calibration problems

If, however, the device is not calibrated using the method chosen for this purpose, or the application used does not give the necessary positive changes, then experts recommend trying another program; fortunately, there are quite a lot of them, software in this direction is very diverse. You can also try “Hard reboot” or in other words rebooting the device.

The last option for calibration is to contact a service center. A similar problem with the device screen can be caused not only by incorrect settings, but also by more serious reasons. In particular, in hardware failure of device elements or the presence of manufacturing defects. In this case, it is more advisable to contact specialists to troubleshoot the problem.

It should also be noted that, together with screen calibration, the gadget may need to check and adjust the screen sensitivity parameters for its subsequent high-quality operation.

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