Here I am going to show you how to access the internal function of Samsgung Galaxy S7 for testing the various hardware parts of your phone if it is working properly or not with the help of these secret code you can test LCD, vibration, camera, sensor (accelerometer sensor, proximity sensor, magnetic sensor), touch screen, speaker, sub key, etc… if you have any hardware problem with your galaxy S7 you can identify with this code if it is working or not to do this follow the steps below.

First of all open your keypad (where you dial Numbers)

  Then Dial the Secret Code –  *#0*#

After dialing the code you will get a screen with title LCD TEST and below that you have lots of option to test various hardware parts of your phone such as speaker, sensor, lcd, etc

–>To go back use right physical button

–>While testing the touch you have to touch and mark all the squares back button does not work
Other use full secret codes for android phone tested on Samsung Galaxy S7

• *#*#7780#*#* Diagnostic and General settings mode
• *#1234# to check software version of phone.
• *#12580*369# to check software and hardware information.
• *#0228# Battery status (ADC, RSSI reading)
• *#32489# Service mode
• *#7780# factory data reset Galaxy S7
• *2767*3855# Full factory reset (Don’t dial it does not ask you to confirm unless you have problem)

If factory reset codes are not working then Click Here 

It might happen that few of them don’t work on your device but the basic one of LCD test will work on all mobiles, If you have any other questions you can Contact Us.
NOTE: Don’t mess unless you know what you are doing with these codes

So these were the best Secret Codes of Samsung Galaxy S7/Edge to test your smartphone for hardware errors or just for fun. Do share us among your friends and like and subscribe us for more such tricks and tips for your smartphones.