How to check the quality of a used Cell Phone
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How to check the quality of the cellphone: Checking the quality of the cellphone to know if it is still in good condition or not is really easy. To get acquainted with the shortcomings and harm, you do not need to rush to check.
Sales and purchase transactions of used cell phones can happen anywhere. But the most important thing is about the condition of the smartphone, you must first make sure that the quality and features are still in normal condition.
How to check the quality of a Samsung Smartphone can be done via a code. The owner or those of you who will check the condition of the cellphone do not need to take apart and check all the components.
On this occasion, I will talk about tips and tricks related to quality control of used cell phones. So that anyone can find out the damage or function of the functions in the Samsung mobile.
The condition of a used Samsung smartphone is checked below to find out the function of the features and problems that exist in the device.
Used Cellphone checkpoints
Each quality check can be divided into several methods. Smartphones are made up of many components that are assembled into a single unit and function as a tool for communicating and browsing the Internet.
The telephone verification process cannot be completed as a whole at once to produce quality conclusions. Here are some tips for checking the status of your Samsung smartphone.
#The screen.
Knowing the screen status of mobile phones is very important. Since this is the first interaction with usage, it works to display system input and output when the user performs a task. Starting from watching videos, sending messages, video calls and other activities that can be done on Samsung phones.
Screen quality is usually related to touch-sensitive issues, dead pixels, with the resulting color on the screen.
Before you know the damage or problem, check first physically and make sure the condition is still good.
#Battery.
Battery quality is an important component. It is used to store the energy that will be used for the continuity of the smartphone.
Along with the prolonged use of mobile phones, the quality and performance of the battery may decrease, which will make the smartphone fall off easily because the battery storage capacity is not good.
You can check the battery and make sure you are using the original type of Samsung product. Or the simpler method is to charge it and then make sure the charging process is working optimally.
#Physical State Telephone.
Checking your fitness is quite simple, just look at the entire phone. Check every corner to make sure everything is still normal or faulty.
The physical condition usually cannot be separated by scratches, cracks, so it is very easy to see.
The Charger adapter.
The next check is the charging adapter part. You only need to test directly by connecting the cellphone and charging it. After that, you can conclude whether the adapter is still normal or not.
There are still other points that can be checked :.
Make sure all accessories are original and complete. For example speakerphone, battery, charger and charger.
Have proof of purchase, such as boxes, receipts, etc.
I tested the speaker sound knowing it is still normal. Test the function of each button, e.g. power button, volume.
- Attempt to take a photo or video from the selfie camera and main camera.
- Please check the microphone function to make sure it is still normal.
- Check each port, audio jack, charger port.
- Check that the gasket is still clean. The above checkpoints can be applied to all brands of mobile phones, Samsung, iPhone, Vivo, Oppo, Nexus or other brands to ensure that all functions are still normal.
In addition to the method of manually knowing the damage, you can also use the engineering mode. It is a feature that is deliberately built into a hidden smartphone that can be used to uncover the damage.
The way to enter engineering mode can usually only be done by using additional codes and applications that can be obtained from Google Play.
MTK Engineering Mode
This application helps those of you who will go to the engineering mode page on mobile phones using the Android OS.
How to use it is very simple, please download it first. Once the download process is complete, open the app and you will automatically be taken to the engineering page or CIT mode.
After the application is open then you can try to type the connection, CPU, and so on.
Checking Using the Dial Code
In addition to using the user assistance application from your smartphone, you can also take advantage of the secret code. The prefix has different functions depending on your needs. For example, to control the touch screen, control speakers, get information about gadgets, etc.
Code to consult the Samsung mobile phone.
- The code * # 2664 # is used to control the Samsung Android screen. Code * # 2663 # Its function is to control the touch screen.
- Code * # 0673 # Functions to control the melody for Android Samsung phones, control the speakers.
- The code * # 0842 # controls the vibration of the Samsung mobile.
- Code * # * # 4636 # * # * Check device information, view mobile phone usage statistics and apps.
Xiaomi Mobile Check Code
Secret codes that can be used to verify damage to features or functions are also owned by the Xiaomi brand, for example some of the following codes:
- * # * # 6484 # * # Xiaomi mobile phone multiple check for screen test, light sensor test, touch screen test, LED test, keyboard test, proximity sensor test, vibration test, SIM card , trial version.
- * # * # 6484 # * # Functions to control audio on Xiaomi phones.
- * # * # 273282 * 255 * 663282 * # * # * This code is used to back up all files on your device.
- * # * # 197328640 # * # * This code is used to enter Xiaomi test mode.
- * # * # 1111 # * # * Software version FTA Fault Tree Analysis is an application to analyze everything on the device
- * # * # 1234 # * # * Its function is to see the firmware version of the smartphone PDA. * # * # 232339 # * # * The function is Xiaomi wireless test.
- * # * # 0842 # * # * To check for vibrations and flashlight
Vivo Check Code Dial
- * # 558 # Functions to check for damage to the Vivo cellphone and find out which functions are not working.
- * # * # 759 # * # * to open the debug user interface
- * # 746 # Code to access the debug dump menu
- * # 74656 25 * 782 * # functions to check cellular network settings
- * # 999 8 * 228 # To view the battery information
- * # * # 26 64 # * # * Touch screen sensitive status test
- * # * # 26 63 # * # * To test the touch screen
- * # * # 08 42 # * # * Function to control the vibration sensor
- * # * # 0 * # * # * Code to control the LCD screen
- * # * # 64 663 # * # * Dialing code Enter Vivo Engineering mode
- * # * # 64 84 # * # * To access Vivo Engineering mode
- * # * # 46 36 # * # * Function to check the battery status of Vivo
- * # 0 * # Test the Vivo mobile phone screen
These are some tips and tricks on how to check for damage on an Android mobile. Make sure all the functions it contains are still normal or have problems.