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How To Downgrade HTC Desire HD To Root It After OTA Update

HTC Desire HDHTC released the 1.72.405.3 OTA Android update for HTC Desire HD in December 2010 that included enhanced security, making it impossible to gain permanent root access on the device after the update. It also removed the permanent root and S-OFF access users had already obtained prior to the update. While there still isn’t a way to gain permanent root and S-OFF on the updated version, you can however downgrade your phone to an earlier build in order to be able to do so. Read on for the complete guide.

Disclaimer: Please follow this guide at your own risk. AddictiveTips will not be liable if your device gets damaged or bricked during the process.

Requirements:

Procedure:

  1. Extract the contents of Downgrade.zip to a location on your computer.
  2. Enable USB Debugging on your HTC Desire HD from Settings > Applications > Development.
  3. Connect your phone to your computer via USB and make sure the connection mode is charge only.
  4. Launch a Command Prompt window and browse to the location of the files extracted in Step 1.
  5. Enter the following commands:
    adb push psneuter /data/local/tmp
    adb push misc_version /data/local/tmp
    adb shell chmod 777 /data/local/tmp/psneuter
    adb shell chmod 777 /data/local/tmp/misc_version
    adb shell /data/local/tmp/psneuter
    adb shell

    You should now get the # prompt, indicating temporary root.

  6. Enter these commands:
    cd /data/local/tmp
    ./misc_version -s 1.31.405.6
  7. Set your phone’s connection mode to disk drive for file transfer and copy the stock ROM’s PD98IMG.zip to the root of your SD card (not in any folder).
  8. Reboot your phone into bootloader by first powering it off and then keeping the volume-down button pressed while powering it back on.
  9. The bootloader will automatically detect the ROM and will guide you through the process of installing it. Simply follow the instructions and you should have the old ROM back on your phone.

Now that you have successfully downgraded your phone, you can root your phone, turn it S-OFF, or even install a custom recovery to be able to flash custom ROMs, hacks and kernels etc. to it. To get started with all of that, you must first root your phone.

Regardless of whether you simply want to root your phone or also want to get into all the further customizations and hacks just mentioned, proceed to our guide on getting permanent root access on your HTC Desire HD. Happy rooting!

Credit for this method goes to XDA-Developers forum member jkoljo.

[via XDA-Developers]

48 Comments

  1. gmo@laptop:~/Downloads/Downgrade$ adb shell /data/local/tmp/psneuter
    Failed to set prot mask (Inappropriate ioctl for device)

  2. When I try to open adb, it pops up fast and closes so fast that I can’t read anything from it. PLEASE SOMEONE HELP!

  3. AoA. I cann’t downgrade my phone, after the 5th command on cmd the it shows “failed to create prot mask (inappropriate ioctl for device)”
    Plz help me out.
    Regards.

  4. Need help I got to the step :
    adb shell /date/local/tmppsneuter (after typing this i got the response)
    /data/local/tmp/psneuter: permission denied

    I tried completeing the commands never the less here is a copy and paste.

    C:\HTCRF>adb shell /data/local/tmp/psneuter
    /data/local/tmp/psneuter: permission denied

    C:\HTCRF>adb shell /data/local/tmp/psneuter
    /data/local/tmp/psneuter: permission denied

    C:\HTCRF>adb shell
    $ cd /data/local/tmp
    cd /data/local/tmp
    $ ./misc_version -s 1.31.405.6
    ./misc_version -s 1.31.405.6
    –set_version set. VERSION will be changed to: 1.31.405.6
    Patching and backing up partition 17…
    Error opening input file.
    $

    Please help asap

  5. Hello.

    adb shell data/local/tmp/psneuter
    Tells me “Failed to set prot mask (Inappropriate ioctl for device)”
    after adb shell
    $

    What should I do to downgrade?

  6. I am getting the following error.. need hlp plz

    adb shell /data/local/tmp/psneuter
    Failed to set prot mask (Inappropriate ioctl for device)

  7. Howdy,

    How do I find out if I have the 1.72.405.3 OTA? I’ve checked the SW versions but can’t see any numbers that seem similar to that. Should I be looking at the Kernel version date?

    Sorry if this is a stupid question!

  8. I assumed having completed all the steps correctly, including making a gold card but stuck at BOOT SCREEN its not loading the PD98IMG, please assist what am I doing wrong? I have checked various mmc cards formatted completed on FAT32 got mmc2 reverse CID all correct no errors on any command except adb server oudated sometimes but when it goes to the bootloader it remain there without processing anything.

    Please assist.

    ———-
    HTC Desire HD
    Orange Brand
    Current FW: 1.84.61.2

  9. Attempted to downgrade from Gingerbread 2.36.161.12

    During stage 5, after typing: adb shell /data/local/tmp/psneuter
    I get the following error:
    Failed to set prot mask (inappropriate ioctl for device)

    When continuing, I get a $ not #, after using Gingerbreak and enabling Super User, I get the #

    After entering: ./misc_version -s 1.31.105.6 I get the following:
    ./misc_version -s 1.31.405.6
    –set_version set. VERSION will be changed to: 1.31.405.6
    Patching and backing up partition 17…

    But the software version on the phone doesn’t change.
    When trying the update with the zip file in the root of the SD Card, it attempts to downgrade, but fails.

    If anyone can point me in the right direction, I’d be extremely grateful!!!

  10. At step _adb shell /data/local/tmp/psneuter_ it gives “Failed to set prot mask (inappropriate ioctl for device)

    Like.. w00t? How could that be? I’m missing the GoldCARD?
    Please let me know, as HTC starts pissing me off, and I’d like my hardware to run MY way, and MY way only…

    Thanks in advance,
    Kromme

  11. I downgraded my htc successfully but I want to go back to the software in which i once had and all of the apps. Is it possible?

  12. hi can someone help me..

    i encountered an error mmap() failed. operation not permitted. on the command promt when i type the command

  13. I’m running an Orange HTC Desire HD. I created the GoldCard successfully and succesfully uploaded the downgrade. However I get Incorrect CID error.

    Current Android Version: 2.2.1
    Software No: 1.84.61.2
    Build: 1.84.61.2 CL333804 release-keys

    Is this above a problem? Is there any successful way to downgrade this?

    • T3Kaos,,

      I have or HAD… exactly the same set up as you

      Orange HTC Desire HDCurrent Android Version: 2.2.1
      Software No: 1.84.61.2
      Build: 1.84.61.2 CL333804 release-keys

      And yes had the same CID error driving me around in circles ..
      I confirm if you follow the Above guide step by step and carefully if all works ..

      ** Now as I recall It all feel over with making the gold card as in
      Note down the ‘Card:mmc2, Reverse CID’ value, making sure to use mmc2 and not mmc1.**

      other guides say change mmc1 to mmc0 and the gold card tool i used copy/pasted the CID mmc1 NOT mmc2 so even thou I made a gold card it fell over at 1st.. because I was using the WRONG mmc1 CID to acutely create it …. All seems easy to understand now but had me foxed for two evenings …

      then in fell over again later..
      patching and backing up partition 17 — your GARD CARD MUST BE IN THE PHONE not a card reader ..for this to work.. “or thats my understanding”

      hope this helps someone ….
      I am now as happy as larry

      now running custom rom on my Orange HTC Desire HD .. and its sweet as a nut…

      regards to all who pass this way…
      Rick.

  14. While doing adb shell step(4th step) i get “adb server is outdated” and then message box pops out from task bar that htc usb drive is not responding.

  15. I manage to get to the part where I reboot into bootloader, it seems to load the zip file but then I get a CID Error. Any idea how to fix this? Brilliant tutorial by the way!

    • i hope someone can help on this matter. i am also facing the same problem and tried many times without luck.

      thanks.

  16. “Launch a Command Prompt window and browse to the location of the files extracted in Step 1.”

    And how do I do that??? :S This guide was incredibly user-friendly up until this point!

    Please help 🙁

  17. Phone did a hard reset. Lost everything except my sd-card info. Didn’t see the guide say anthing about this…? Did I do anything wrong or was this part of it?

  18. Hi I made the gold card and the DHD seemed accept it fine. When it came to downgrading though I hit a snag. Went through stage 5 and 6 above, I’d preloaded the image on the phone earlier. I restarted the phone and HBOOT gave an error CID incorrect! Update Dail! Press to reboot. Anyone know where I went wrong please?

    • Woops should have added more detail.

      When i go in settings and tell it to seach for a upgrade it can’t find one

    • You’ll have to find the new 1.72.405.3 (or whichever official version you want) ROM and flash it to your phone. It’ll most likely be in a RUU (Rom Update Utility) format that you’ll have to run on your PC while your phone is connected to it, and it’ll take care of the whole process for you, or in a format similar to this PD98IMG.zip that you’ll have to install the same way i.e. by going into bootloader.
      You can find the ROM at the HTC’s website or XDA-Developers forum, amongst other places.

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