[TUTORIAL] Downgrade Desire Hboot 1.03

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



Steps:

1. Download tools package (attached files)
2. Download this HTC Official ROM (RUU)
3. For branded phones create GoldCard.
4. Extract the tools any where at your computer.
5. Run RUU and wait to appear Android rom update utility screen.
6. Go to Temp directory on C drive 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 cmd.exe on tools folder that you download and extracted it and Execute these commands:

7.

adb push flash_image /sdcard/flash_image

8.

adb push zergRush /data/local/zergRush

9.

adb shell

10.

chmod 755 /data/local/zergRush
/data/local/zergRush

Output on cmd should be like :

[**] Zerg rush - Android 2.2/2.3 local root
[**] (C) 2011 Revolutionary. All rights reserved.

[**] Parts of code from Gingerbreak, (C) 2010-2011 The Android Exploid Crew.

[+] Found a GingerBread ! 0x00017118
 Sending 149 zerglings ...[ * ] Trying a new path ...[ * ] Sending 149 zerglings ...[ * ] Trying a new path ...[ * ] Sending 149 zerglings ...[ * ] Trying a new path ...[ * ] Sending 149 zerglings ...
[+] Zerglings caused crash (good news): 0x401219c4 0x0054[ * ] Researching Metabolic Boost ...
[+] Speedlings on the go ! 0xafd260a9 0xafd39f9f[ *] Poping 24 more zerglings[ * ] Sending 173 zerglings ...

[+] Rush did it ! It's a GG, man !
[+] Killing ADB and restarting as root..enjoy!

11.

cat /dev/mtd/mtd0 > /sdcard/misc.img

12.

cat /sdcard/flash_image > /data/flash_image

13.

chmod 777 /data/flash_image


14.

exit

15.

adb pull /sdcard/misc.img misc.img


16. Now the misc.img is in your tools folder. Run HxD.exe and select OK when prompted.

17. Open misc.img in the current directory, and change line 11 which contains the version number of your current ROM. Change it by number of the future ROM you want to install(Find at Android rom update utility screen after run RUU)
Changes will appear in red. Save the file to misc0.img.

16.

adb push misc0.img /sdcard/misc0.img



17.

adb shell
/data/flash_image misc /sdcard/misc0.img


18. Reset phone and press vol-down to go to Bootloader.
19. Wait for detect and check the Update Package.
20. After checking 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 18,19,20.




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
Creating a goldcard



Thanks
emveefr

IF YOU CAN NOT DOWNGRADE HBOOT,WITH THIS TUTORIAL, PLEASE READE THIS POST

Neat, I'll link this on my guide. I'm sure it'll be very useful to some.

After step 10 pc can't find phone and screen never turn off... Current rom is Stock pre-rooted Gingerbread, non-branded

Originally Posted by mikele020794

After step 10 pc can't find phone and screen never turn off... Current rom is Stock pre-rooted Gingerbread, non-branded

Hi, please read and do the end of post #1

Originally Posted by netmsm

Hi, please read and do the end of post #1

Hi, after official unlocking I cant flash any stock rom =( I tried to use teppic's downgrader before...

Originally Posted by mikele020794

Hi, after official unlocking I cant flash any stock rom =( I tried to use teppic's downgrader before...

Hi, dont worry
Please :
1. Do full wipe
2. Do instructions in second way (bottom of the post #1, in red color)

5. Run RUU and wait to appear Android rom update utility screen.
6. Go to Temp directory on C drive on your computer and find folder that RUU extracted in it.

Can't find the file in step 6?

Originally Posted by Kurt45

5. Run RUU and wait to appear Android rom update utility screen.
6. Go to Temp directory on C drive on your computer and find folder that RUU extracted in it.

Can't find the file in step 6?

Hi,
On temp directory at C drive, please search "adb.exe" or "rom.zip"

Originally Posted by bortak

Neat, I'll link this on my guide. I'm sure it'll be very useful to some.

offer, for you My friend

I have tried it on a phone with the HTC official unlock but it stop working on step 11.