Downgrading & Rooting your HTC Desire HD (Inspire 4G)

by djsharpe on April 26, 2011



Warning:
Messing with the firmware of your phone can easily end in a “bricked” handset which is only of use as a paperweight. Proceed at your own risk. I am not responsible for any damages or loss which results from following the instructions below.

About:
The problems started when HTC released their 1.72.405.3 OTA update. That update could not be rooted, and many people got stuck in stock roms. Now a downgrade method has arrived! After this process, you can use any root (+ S-OFF) method you want. Basically your device will be just like any other Desire HD with older build version.

System requirements:

  • HTC Sync (or ADB drivers)
  • Desire HD with build number 1.72 or higher
  • [Warning] Telus DHDs may lose sound because the 1.32.405.6 is not fully compatible with the sound chip. Just start using a custom ROM, and it will work fine.

How to downgrade:

  • IF you have a branded device, you have to make a GoldCard. Use “mmc2” instead of “mmc1”!!
  • Download the attached file and extract it
  • Get stock 1.32 PD98IMG.zip ROM, mirror
  • Connect Desire HD to a computer. Charge only, USB Debugging enabled!
  • Open up a cmd and go to Downgrade folder, execute:

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

If you got “#” in the result, you have temporary root! Proceed:

cd /data/local/tmp
./misc_version -s 1.31.405.6

 

  • Put PD98IMG.zip to your SD card. You can close the cmd and set connection to disk drive. Do not put the file into a folder.
  • Reboot while holding volume down, it will go to the bootloader
  • Follow the instructions (start the update)
  • Done. You can now proceed with old S-OFF methods, and remove the PD98IMG.zip from your SD. I recommend Radio S-OFF for new users.

Downgrade Tools

Credits: Scotty2, rhcp, Guhl, Jkoljo and all over at XDA

PS. When you’re done, Do yourself a favor and flash the CM7 ROM😉

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