1. borings's Avatar
    So every dialer code/hardware code I used to try, used to work, I'm certain.

    Now I do a search and notice all of these format codes:

    *#*#NUMERICCODE#*#*

    NONE of them work, for example:
    *#*#4636#*#* Phone info

    *#*#526#*#* WLAN Test

    *#*#232337#*# Displays Bluetooth device address.

    But some (50%) of these work:
    *#CODE#

    to be sepcific, these are working:
    *#06# IMEI
    *#0228# Battery Status.
    *#2263# RF Band selection

    ---------------------------------------------------------------
    I'm seeing a pattern. Of course codes meant for diff ROMs don't work but I used to have a great list of working codes, in particular, the screen test code!!!

    I used a variety of sources INCLUDING specific sites that list codes for Galaxy A70.

    I need to test my screen. Does anyone know?
    08-27-2020 01:09 PM
  2. mustang7757's Avatar
    Hi, welcome to AC!
    What issues you having with the screen?
    borings likes this.
    08-27-2020 08:43 PM
  3. borings's Avatar
    Hi, welcome to AC!
    What issues you having with the screen?
    Hi and thanks for your reply!


    The phone sometimes gets too hot when ambient temperature increases during this summer.
    The result is the screen appears to be tapping by itself.

    The problem goes away when the temperature goes down. It was extrememly bad when it was 30-35C outside.

    I did the screen test before where I can actively draw on a white screen and identify the non-reactive regions.

    Do you know the dialer code to get the screen draw test?
    mustang7757 likes this.
    08-28-2020 10:49 AM
  4. mustang7757's Avatar
    Hi and thanks for your reply!


    The phone sometimes gets too hot when ambient temperature increases during this summer.
    The result is the screen appears to be tapping by itself.

    The problem goes away when the temperature goes down. It was extrememly bad when it was 30-35C outside.

    I did the screen test before where I can actively draw on a white screen and identify the non-reactive regions.

    Do you know the dialer code to get the screen draw test?
    I'm not sure the dialer codes as every Samsung phone are different. You try safe mode ?
    borings likes this.
    08-28-2020 11:12 AM
  5. borings's Avatar
    I'm not sure the dialer codes as every Samsung phone are different. You try safe mode ?

    Oh no I never tried it haha ok

    Right now of course the phone is acting fine so I will try safe mode next time I can see it happening.

    -------------------
    Safe Mode Android 10

    1. Restart phone
    2. When the logo appears, hold the volume down key until the phone has booted
    Make sure ---->It should say "Safe mode" somewhere on screen once booted
    -------------------


    So at this point, the screen-draw test I found that worked previously, I believe I still could benefit from. Previously, the problem was intermittent and the screen-draw test helped me diagnose that my screen is broken.... but then the screen worked ok sometimes and now those parts of the screen work sometimes.

    Now I want to identify which parts of the screen the phone is not able to get touch data from.
    I'll report back with more.
    mustang7757 likes this.
    08-28-2020 12:42 PM
  6. mustang7757's Avatar
    Oh no I never tried it haha ok

    Right now of course the phone is acting fine so I will try safe mode next time I can see it happening.

    -------------------
    Safe Mode Android 10

    1. Restart phone
    2. When the logo appears, hold the volume down key until the phone has booted
    Make sure ---->It should say "Safe mode" somewhere on screen once booted
    -------------------


    So at this point, the screen-draw test I found that worked previously, I believe I still could benefit from. Previously, the problem was intermittent and the screen-draw test helped me diagnose that my screen is broken.... but then the screen worked ok sometimes and now those parts of the screen work sometimes.

    Now I want to identify which parts of the screen the phone is not able to get touch data from.
    I'll report back with more.
    Ok , if touch issue from screen most likely the screen comes with a digitalizar together
    08-28-2020 03:38 PM
  7. borings's Avatar
    OK so after some searching I am finding more working codes ( *~* TESTED *~* )

    IMEI Info
    *#06#

    Firmware version
    *#1234#

    Test Menu
    *#0*#

    Advanced Service Mode
    *#2683662#

    Battery Status
    *#0228#

    USB Settings
    *#0808#

    Advanced Firmware Version
    *#2663#




    The one I had been looking for is the Test Menu code: *#0*#





    I've done this test 3 times now... each time you draw all over the place looking for dropped touch areas. NONE FOUND NOW! Like what?


    Have you ever heard of the issue I described originally?

    Just to make things more exciting, I was posting....and suddenly my bottom icons arent working (GMAIL app currently). This comes AFTER I just did the screen test.
    08-28-2020 03:55 PM
  8. mustang7757's Avatar
    Test your screen in safe mode
    borings likes this.
    08-28-2020 04:01 PM

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