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  1. #1
    Points: 1,744, Level: 24
    Overall activity: 7.0%

    Reputation 10
    Join Date
    Jul 2011

    Samsung Galaxy S4 diagnostic mode

    does anyone know what the diagnostic mode is for the Cricket S4? its not the same as the verizon/sprint variants. I have tried the Diag utlity, all the *# Keys. Has anyone got the diag code?


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  3. #2
    Member Ledah's Avatar
    Reputation 23
    Join Date
    Feb 2012
    Buffalo, NY
    Samsung Galaxy S4

    1 out of 1 members liked this post.

    *#22745927# then click enable and do ##data#.

    Sent from my SCH-R970C using Tapatalk

  4. #3
    Junior Member
    Points: 353, Level: 7
    Overall activity: 0%

    Reputation 12
    Join Date
    Dec 2013
    Private, USA

    If you're referring to the hardware diag screen its *#0*#

    enable hidden menu first with *#22745927#

    to enable diagnostic COM ports when connected to a PC try changing these settings:

    *#0808# USB Settings
    *#7284# USB I2C Mode Control
    *#9090# USB Service Mode

    (It's probably a good idea to note existing setting before changing anything)
    Last edited by s4user; 02-11-2014 at 07:44 PM.



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