Introduction

If you want to test your Samsung Galaxy, you can do this with the Service Test menu.

There are two Test menus.


Video Overview

From the dialer app enter this code: *#7353# Now you can check the Light and Proximity sensors, Accelerometer, Touch screen, Main Camera and so on.
  • From the dialer app enter this code:

    • *#7353#

  • Now you can check the Light and Proximity sensors, Accelerometer, Touch screen, Main Camera and so on.

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Deck the Halls
With tools and Fix Kits
Enter this code: *#0*# This menu is similar to the previous one.
  • Enter this code:

  • *#0*#

  • This menu is similar to the previous one.

Bonjour qu1nd je tape le code *#0*# ça me dis “place open book cover” je ne comprends pas je suis sur un galaxy a3 2017

Guillaume - Reply

Conclusion

To reassemble your device, follow these instructions in reverse order.

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ZFix

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8 Comments

I have a5 2016 sm5100 .....and codes are not work why????

sweetktz789 - Reply

Doesn't work. These "tutorials" are always bullshit.

Fred - Reply

code for engineer mode

Vemula Anjith - Reply

Hello! I got weird error for *#0*#. I entered it and i got message like: " Plase Open Book Cover." Not "Please..." either. Can you help me? I would really appreciate your help and work. Thank you.

Nokia Lumia 620 - Reply

You upgrade to Android 7 and the *#0*# goes bye bye. Don't know why, but it does.

Michael Justin -

I am having the same issue “plase open book cover “ And my phone is already updated to Android 7. Further my sim jacket broke down and I opened the phone and later the hands free didn't work as well as *#0*# shows the plase open book cover. What should I do now?

mirza ali -

if u r having mobile cover on the mobile , just remove it and try code *#0*#

Gulshan Yadav - Reply

I was concerned about the accuracy of the touchscreen on my Samsung Galaxy A5 2017 with Android 7.0 . I did both of these tests and both confirmed that the screen was very accurate indeed. Many other tests are also available to test just about every sensor, input and output on the phone. I am very pleased with these findings. Many thanks to the people who brought this to light!

Thys Pretorius - Reply

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