OTG does not work on rooted razr (XT910 with JB)

Discussion in 'Droid RAZR Support' started by shlape, Aug 10, 2013.

  1. shlape

    shlape New Member

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    After researching many online instructions I was able to root my phone, thinking this was required to connect USB devices via an OTG cable. Unfortunately I still can't get any USB device to work with my phone. I was interested to seeing if I can connect a Class 1 USB bluetooth dongle to the phone just to see how Android would work with it, namely as a range-extended mp3 player. Why would I do that?? There is method to my madness, but that's outside the scope of this question.

    What was done so far:
    - Using this post I successfully rooted the phone.
    - USB debug status remained enabled from the rooting process.
    - I verified root status with the app 'Have Root' (which doesn't appear to be on Google Play anymore).
    - I bought an OTG cable and tried several USB devices,ie. bluetooth dongle, USB memory without success.
    - I installed USB Host Controller to see if I could get a verbose output to troubleshoot the problem. I got:
    Code:
    S3C USB Host driver NOT found
    I haven't has any luck addressing this error.

    - I found another post which advised finding android.hardware,usb,host.xml in the directory /system/etc/permissions/, and adding the following:
    Code:
    <permissions>
      <feature name = "android.hardware.usb.host" />
    </permissions>
    ...and in handheld_core_hardware.xml, add the following to the permissions section


    SO, after all that, can anyone suggest what I missed, or what I could do to get USB devices working on my razr. This is more of an exploration study as I was thinking of getting a tablet PC and doing the same, however to save me the hassle and cost if it doesn't work the way I expected, I thought I'd first try it on my phone.

    Thanks.
     
  2. shlape

    shlape New Member

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    Having seen some info online about providing an external power supply to the USB device, I plugged up an old extenral HDD which has a separate power connection.
    Unfortunately, there is still no sign of life.
    Using the USB Host COntroller app I get:
    Code:
    USB Host Controller
    Version number: 0.44
    
    S3C USB Host driver NOT found!
    
    Root hub present, USB Host mode is active!

     
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