This is how you can know if a second-hand mobile phone is in perfect condition before buying it

Thanks to Android secret codes, you can carry out a thorough diagnosis of your used phone before buying it, ensuring that it is in perfect condition and working correctly.

Sometimes, for various reasons, you don’t have enough money to get a new cell phone. In these cases, choosing to buy a second-hand model can be a viable option. However, you should keep in mind that There are certain dangers that you should consider before making the final decision.

When purchasing a used smartphone, there are several risks involved. One of the biggest is the actual functioning of the equipment. Many sellers, in order to close the sale, may omit crucial details about the mobile’s performance.

For example, the WiFi signal may not work correctly, the battery life may be very short, or there may be problems with the fingerprint sensor, among other technical details that cannot be seen with the naked eye at the time of purchase. .

If you have decided buy a second-hand Android mobileit is important to mention that the operating system has a series of secret codes that can help you check if the equipment is in perfect condition.

These codes will allow you to perform a complete hardware diagnosis, ensuring that everything works correctly and thus avoiding wasting your money. Carrying out this procedure is very simple, you just have to open the phone app and dial the secret code, where a new menu with many functions will open.

How to use Android secret codes on a used mobile

Each brand and model of Android has its own codes, so you will have to look for the specific ones for the mobile you want to buy. However, here we share those of the most popular brands on the market.

For example, if you are going to buy a Samsung Galaxy mobile, you must first enter the code ##4636##if it is a Google Pixel write the code *#*#7287#*#*for a Motorola device, enter the code *#*#2486#*#* and for Xiaomi mobiles, and its sub brands such as Redmi and Poco, the code is *#*#64663#*#*.

These codes allow you to access hidden diagnostic menus that give you detailed information about the health of your phone’s hardware and software. From this section it will be easier for you detect if the terminal has a fault in its operation.

The first thing is to have the device in your hands and check the IMEI, this code allows you to verify if the used mobile phone you want to buy has been reported stolen or lost. You can see this number in this menu, but if it doesn’t appear, you can dial *#06# and it will immediately be displayed on the screen, copy it and paste it into swappa to know once and for all if what you are going to buy is a legal product.

In the diagnostic menu, look for the option keyboard test or similar. Press each physical button on your phone (power, volume, home, etc.). Each button should illuminate green on the screen, indicating that it is working correctly. If a button does not respond, it could be faulty.

Carry out the same procedure with the vibration motor, in the option Vibrator Test you will find this function. The phone should vibrate in several modes (continuous vibration, interval vibration), so make sure the vibration motor works in each mode.

One of the most important aspects is the test Display, which allows you to perform backlight tests to check the minimum and maximum brightness. In touch sensor You’ll test the touchpad by touching different areas of the screen and you can even make sure there are no dead pixels.

Thanks to the secret codes, you can access this diagnostic menu which is a great tool to check the true condition of a second-hand mobile. In addition to the above, you can also simulate a call to know if the microphone is in good condition and if the speakers have no damage.

On the other hand, you can test the ports of the equipment, such as the 3.5 mm jack and the charging port. Likewise, it allows you to check that the sensors work perfectly, such as the fingerprint sensor, the proximity sensor, the accelerometer, etc. You can verify everything with this menu, which is very complete.

It should be noted that, additionally, you can ask the seller to reset the mobile to factory settings, this will allow you to know if the operating system works and there are no performance problems. Likewise, look for scratches, dents or any other signs of damage that may indicate that the equipment is not in perfect condition.

Buying a second-hand mobile phone can be an economical and viable option, as long as you take the appropriate precautions to ensure that the device is in perfect condition. Using Android secret codes to perform a complete hardware diagnosis is a great way to protect your investment and avoid unpleasant surprises.

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Tags: Second hand, Mobiles, AutoRepub, ShareOnFB