Root HTC Desire using REVOLUTIONARY method

Easiest Root Method

– The easiest root method for the HTC Desire

[STEP1]- Check Hboot version. Poweroff, and hold Volume Down & Power (it’s the number after “HBOOT”. Examples are 0.75xxxxx, 0.83xxxxx, 0.93xxxxx, 1.02xxxxx)

REVOLUTIONARY

[REVOLUTIONARY]- If your HBOOT version is 0.93 or above (NOTE: Version 1.03 is NOT supported) then continue, if it is below then use the Alpharev method.

[REVOLUTIONARY][STEP1]- Go to revolutionary.io and go to the “Downloads” section, Pick your operating system, choose device as HTC Desire, and choose your HBOOT version (you should already know this from STEP1). Then enter your serial number, it can be found in “about phone” or behind the battery.

[REVOLUTIONARY][STEP2]- Read the documentation page and download these fastboot drivers.

[REVOLUTIONARY][STEP3]- Make sure HTC Sync is disabled, if you have it installed on your PC. Plug your phone in via USB and make sure USB debugging is turned ON (settings> applications)

[REVOLUTIONARY][STEP4]- Extract all of the tools from the revolutionary.zip file and run revolutionary.exe. A CMD window should pop up and show you the progress (See [3] for how it should look like).

[REVOLUTIONARY][STEP5]- When the process is almost finished, it will prompt you to flash a custom recovery, type YES or Y. Follow tutorial number [10] if you would like to flash a different recovery – This is optional and not required if you decide to flash recovery during the revolutionary process.

[REVOLUTIONARY][STEP6]- Download superuser.zip, put it anywhere on your sd-card (preferably in a path you can remember). Boot into recovery by holding Volume Down & Power (You will see lines of green text flash, this is normal), then using the volume keys to navigate to RECOVERY, and use POWER to select. The phone will now boot into recovery.

[REVOLUTIONARY][STEP7]- Once you are in recovery, use the trackball (if it’s broken then use volume keys) to navigate to “install zip from sd-card > choose zip from sd-card > #directory where you put superuser.zip# > superuser.zip > yes”

[REVOLUTIONARY][STEP8]- After the process is finished, reboot, and your phone will now be rooted.

[Ref: http://forum.xda-developers.com/showthread.php?t=1275632]

 

Downgrade HTC Desire Hboot 1.03

If You want to downgrade Desire Hboot 1.03, then using revolutionary to s-off, please follow the instructions below.

Steps:

1. Download tools package. THIS LINK
2. Download this HTC Desire ROM (RUU)
3. For branded phones create GoldCard (How to)
4. Extract the tools any where at your computer.
5. Run RUU and wait to appear Android rom update utility screen. Don’t hit Next.
6. Go to Temp directory on C drive (Press Window+R and type %TEMP%, then hit enter) on your computer and find folder that RUU extracted in it.
7. Copy the rom.zip and paste it to sdcard and rename it to PB99IMG.zip
8. Connect your phone to computer via USB as charge only and enable USB debugging and Unknown Sources.
9. Run DOWNGRADER on tools folder that you downloaded and extracted it. If it gives any error try running it as Administrator.
10. Follow the instructions on screen (This may take a minute or tow)
11. Your phone will be reset, wait for detect and check the Update Package.
12. After checking update package, press vol-up to begin update process, IN FIRST TIME AFTER PRESSING VOL-UP YOUR PHONE WILL RESET AND DO NOTHING, YOU SHOULD DO AGAIN FOR STEPS 11,12

Notes

The process will flash your recovery partition back to stock
This process will wipe all the data from your phone
The downgrade installs an official stock HTC ROM with Hboot1.02 (You can s-off with revolutionary and after it You can flash any version of Hboot)
Your sdcard should be fat32 formatted

[Ref: http://forum.xda-developers.com/showthread.php?t=1564644]