Samsung Galaxy A7 Secret Codes, Hidden Service Menu in Galaxy A7

Samsung Galaxy A7 is a phablet having a 5.5inch screen, powered by an 1GHz octa core processor and running on Android 4.4 out of the box. This mobile comes under the High-end Smartphones by Samsung.

Coming to secret codes, Secret Codes in a mobile are just a combination of Numbers and special characters which allow you to access some hidden test and information which are intended for developers and for troubleshooting purposes.

Secret Codes of Samsung Galaxy A7

So, here I am going to show you how to access the internal function of Galaxy A7 for testing the various hardware parts of your phone if it is working properly or not with the help of this 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 A7 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*#

Now you 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 galaxy A7

•      * #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 A7
•      *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 
So now you have learned how to use secret codes on you Samsung Galaxy. Do share us and if you have any queries then feel free to comment below.