SM-T2105 Galaxy Tab Kids - Corrupted USB Connection

Discussion in 'Android Support' started by freekey, Oct 13, 2014.

  1. freekey

    freekey New Member

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    Monday, 13 October, 2014 04:44:05 PM - SM-T2105 Galaxy Tab Kids - Corrupted USB Connection
    ---------------------------------------------------------------------------------------
    Hi all.

    I've spent almost the full 2 days looking for solution of this but to no avail.

    My tablet is using 4.1.2 Jelly Bean.

    I owned the SM-T2105 Galaxy Tab Kids rooted. Then suddenly I was thinking to move all my apps to SD card. Trying and trying, finally I realized that I need to make separate partitions on the SD card first.

    So I one of the solutions I found on the internet told me to make that partition using the PC. Then I am interested to connect my device as mass storage instead of the default MTP connection. So I found this - SG USB Mass Storage Enabler - Android Apps on Google Play

    Without reading any further, I quickly installed it and turn on the mass storage function. But to no avail. My PC can't recognized the tablet anymore since then. Immediately, I quickly uninstalled that app and looking for another app. But still the same problem.

    So finally I am stucked with "connected as an installer" whenever I connect the tablet to my PC. And the worst thing that, I cannot change it back to MTP/Camera transfer mode i.e. my tablet would immediately reboot! I was totally intensed since then. After trying and trying, I still cannot find the solution.

    Then I thought a firmware upgrade will do. So i install the latest firmware for SM-T2105 - T2105ZHAND2 from here - Firmwares SamMobile I also rooted it again then.

    But still the problem persist. I also end up using the ADB terminal from my PC to issue the
    Code:
    su
    setprop persist.sys.usb.config mtp,adb
    reboot
    But still the same problem. My device would restart immediately after issuing the command.

    I have also found somewhere this code but the issue is I cannot find that /sys/devices/platform/msm_hsusb/gadget/lun0/ path on the tablet:
    Code:
    Mass Storage Mode
    ---------------------------------------------------------------------------------------
    setprop persist.sys.usb.config mass_storage,adb
    echo /dev/block/vold/179:33 > /sys/devices/platform/msm_hsusb/gadget/lun0/file
    
    Return to MTP
    ---------------------------------------------------------------------------------------
    #!/system/bin/sh
    echo "" > /sys/devices/platform/msm_hsusb/gadget/lun0/file vold 
    setprop persist.sys.usb.config mtp,adb
    This /sys/class/android_usb/android0/f_mass_storage but no lun folder inside. Only nluns file is sound
    So I am really stressed with this. Can someone here please help me out?

    Besides of all those issues, turning off the Developer Options/USB Debugging would also make it restart on the spot.

    Factory reset would be my last choice.

    I was expecting something like system files update or something. Is it possible?

    Thank you very much.
     
  2. cr6

    cr6 Super Moderator
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    Welcome to the forum freekey!
    Hang in there and hopefully one of our many knowledgeable members can give you a hand. Good luck!

    S5 tap'n
     
  3. freekey

    freekey New Member

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    Current Phone Model:
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    Thanks mod..

    So any experts here? Really feel bad about this :(
     
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