Author Topic: Samsung Android USB Diagnostic Serial Port  (Read 17218 times)

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Samsung Android USB Diagnostic Serial Port

« on: January 08, 2012, 11:13:52 AM »
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  • GreggWh

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    I have recently flashed the new Gingerbread 2.0 ROM to my precedent. I am trying to flash a new prl, which I hvae previously done, but for some reason the USB diagnostic serial port does now show in CDMA, any suggestions?
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    Re: Samsung Android USB Diagnostic Serial Port

    « Reply #1 on: January 08, 2012, 12:39:34 PM »
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  • slynsingle


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      Gregg

     Yes, you can reassign the com to the USB Diag port under device manager. I assume you have the correct drivers installed?  If not the drivers are located under "downloads-other" on this site. Have a good 1     See below

    .Press and hold the windows key, and press the PAUSE/BREAK button. It is located up near the ScrLk (Scroll Lock). If that doesn't work click your start button, right click COMPUTER, select properties.

    This will bring up the System Properties windows.
    In the top left hand corner there will be a link to the device manager. Click it.
    Dig through the device manager until you find the section named PORTS.
    Find the port you want to change, right click it and select properties.
    Select the Port Settings Tab.
    Click the Advanced button.
    Change the port number.

    You might be prompted to restart your system.



    Re: Samsung Android USB Diagnostic Serial Port

    « Reply #2 on: January 08, 2012, 03:22:00 PM »
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  • GreggWh

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    Thanks for the info. I followed this, made sure that the drivers are on my computer, but still no luck. Anything else I should look at ?
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    Re: Samsung Android USB Diagnostic Serial Port

    « Reply #3 on: January 09, 2012, 08:25:32 AM »
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  • GreggWh

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    Just picked this up off of the Android forum...
    Quote from: LJS;3772842
    I believe that the issue is actually that some modded ROMS will not supply the Diagnostic Driver on the USB. I rooted and installed GB2.0, and the phone no longer provides the Diagnostic Serial Port. I confirmed this by using the same methodology with a stock phone. Apparently the GB ROM does not provide the full functionality. Only the Samsung Android USB Modem shows up.

     

    I also checked the drivers, and USB connection history, and that also confirms that my Custom ROM phone simply no longer provides the Diagnostic Serial Port on the USB.

     

    Hope this helps provide some direction. Open to suggestions.[/QUOTE
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    Re: Samsung Android USB Diagnostic Serial Port

    « Reply #4 on: January 10, 2012, 01:53:21 PM »
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     Wow Gregg, I wasn't aware of the GB issue. Strange. I'll do some homework and get back 2 u

    Re: Samsung Android USB Diagnostic Serial Port

    « Reply #5 on: January 10, 2012, 02:07:53 PM »
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     ;D man that would be great ! I know alot of ppl r havin the issue, I thought I was doin something wrong. I was trying to flash a new prl, and couldn't. Any help would be GREATLY appreciated, by ALL !
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    Re: Samsung Android USB Diagnostic Serial Port

    « Reply #6 on: January 16, 2012, 01:35:13 PM »
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    UPDATE..GOOD NEWS!!

     I was surfing Android Forums for an answer to the usb diag port not accessible with GB V2.0/2.1. Well check out this post. Thanks to New Optimus @ AF for this post.

    Switch to a Sprint prl
    All thanks to Koumajutsu for letting me use his tut
    1) Turn on USB Debugging in the Settings > Applications > Development menu

    2) Change your "DM" mode to USB on froyo
    __a) Get your MSL: "adb shell getprop ril.MSL" (if you don't know how to use ADB, ask for help before following this)
    __b) Enter the DM menu dial ##8778#
    __c) Enter your MSL
    __d) Select USB
    To change your phone to DM mode for gingerbread
    __a)Dial ##7678#
    __b)Enter your MSL
    __c)Select DM and your phone should reboot in DM mode
     
    Once phone reboots, go into device manager,ports/coms, the usb diag port should show now. Right click on the UDP and you can assign a new port to an open one.

     Enjoy

    Re: Samsung Android USB Diagnostic Serial Port

    « Reply #7 on: January 17, 2012, 04:56:01 PM »
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    I knew yall would give us the "solution". This is Great news ! Thank you "everyone who help resolve this issue. :) ;D
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    Re: Samsung Android USB Diagnostic Serial Port

    « Reply #8 on: January 18, 2012, 06:25:32 PM »
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     You are very welcome. I'm glad to help, Lord knows I've had my share of needing help lol

    Re: Samsung Android USB Diagnostic Serial Port

    « Reply #9 on: January 27, 2012, 11:47:28 AM »
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  • gizmo

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    Hmmm-----interesting! Is there a way to program MDN into the phone manually if an accident occurs and the number wiped off?
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    Re: Samsung Android USB Diagnostic Serial Port

    « Reply #10 on: January 28, 2012, 02:11:37 AM »
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    UPDATE..GOOD NEWS!!

     I was surfing Android Forums for an answer to the usb diag port not accessible with GB V2.0/2.1. Well check out this post. Thanks to New Optimus @ AF for this post.

    Switch to a Sprint prl
    All thanks to Koumajutsu for letting me use his tut
    1) Turn on USB Debugging in the Settings > Applications > Development menu

    2) Change your "DM" mode to USB on froyo
    __a) Get your MSL: "adb shell getprop ril.MSL" (if you don't know how to use ADB, ask for help before following this)

    getprop ril.MSL DOES NOT WORK on the Precedent with froyo or GB tried and failed a million times, you have to use the alogcat method or pay some lil geeky nerd at sprint to do the alogcat to get it for you.
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