downgrade HBOOT 2.00.0002 to 0.98.00000 without using HTCDEV unlock

[mtothearkus]

SEEMS TO WORK ONLY WITH VERSIONS THAT GOT THEIR UPDATE BEFORE NOVEMBER (EUROPE SHOULD WORK, ASIA/INDIA I DO NOT KNOW!!!)

IF THERE IS A NEW TEMPROOT EXPLOIT AVAILABLE IT SHOULD WORK FOR NEWER VERSIONS ALSO

okay now more in detail

first you have to know that you will loose all data on your system, please backup bevor doing anything!!

what you will need:

- misc_version http://www.thinkthinkdo.com/trac/project1/wiki/misc_version

this will change your version information on your desire s later

- zergRush https://github.com/revolutionary/zergRush/downloads

this will give you temporary root privilieges (so that you can change the version number)

- phone

- chargecable

- adb-shell (see this guide http://forum.xda-developers.com/showthread.php?t=1272595)

- windows os on your pc

- RUU http://forum.xda-developers.com/showthread.php?t=1002506
--> please notice: if you have a branded device, use a branded RUU to downgrade!!

1. Connect your phone to your PC in debug mode (Set option in settings (application --> developer)

2. unzip the downloaded files in a folder (e.g. c:/Users/yourName/Downloads)

3. run the Terminal (Windowsbutton + R --> cmd) and change into the folder where the files are (change folder with 'cd')

4. now type to the terminal (every line is one command!)

adb push zergRush /data/local/tmp
adb push misc_version /data/local/tmp
adb shell chmod 777 /data/local/tmp/zergRush
adb shell chmod 777 /data/local/tmp/misc_version

now type
adb shell
cd /data/local/tmp/
./zergRush

--> now adb shell closes and restarts, instead of having a $ you have a # which means root

5. now type

adb shell /data/local/tmp/misc_version -s 1.27.405.6

--> this will change your version information

6. now you can doubleclick on the privous downloaded RUU and follow the steps. it may tell you from going down from version 2.xx to 1.xx but it is possible.

7. phone reboots and when it is up again you should have android 2.3.3 hboot 0.98.0000 S-ON

8. now just download revolutionary from http://revolutionary.io and create a beta key and start programm

if it was helpful, please use the thanks button!!

 

[ciorcila.alex]

(i'm newbie) i don't understand step 3..

 

[mtothearkus]

This Howto describes how to get down from hboot 2.00.0002 to 0.98.0000
without using htcdev unlock

Requirements:

- misc_version
- zergRush from xda)
- Desire S
- adb-shell (HTC Sync contains it i think)

- RUU from earlier Version 1.28.401.1 RUU_Saga_HTC_Europe_1.28.401.1_Radio_20.28b.30.080 5U_38.03.02.11_M_release_177977_signed.exe - download now for free. File sharing. Software file sharing. Free file hosting. File upload. FileFactory.com


1. connect phone with chargecable, debug mode on, only charge
2. start terminal (Windows+R --> cmd)
cd .. (so on)
go in to the folder where zergRush and misc_version are
3.
type following

adb push zergRush /data/local/tmp
adb push misc_version /data/local/tmp
adb shell chmod 777 /data/local/tmp/zergRush
adb shell chmod 777 /data/local/tmp/misc_version

adb shell /data/local/tmp/zergRush

4. when u got from $ to # (which means root) type the following
adb shell /data/local/tmp/misc_version -s 1.27.405.6
5. your desire s thinks its a version earlier
6. dobleclick the RUU und follow the steps
--ATTENTION YOU LOOSE YOUR DATA -- PLEASE BACKUP!!!

7.phone reboots with hboot 0.98.0000 S-On
8. follow the other steps from revolutionary to get s-off


PS: i tried the other way around and i am successful s-on again! (so no loss of warranty)

 

[spajdo]

Is there anyone else who tried this method?

 

[mtothearkus]

3 people in german android-hilfe.de forum.

but some seem to have problems when their desire is branded (dont know if the use branded ruu or not)

 

[george1234567890]

Hi,
Im reall sorry if im being stupid but what is misc_version?

 

[mtothearkus]

It is a script that lets u change the Version on your phone. I will look for one


Edit: http://www.thinkthinkdo.com/trac/project1/wiki/misc_version

here it is...
Sent from my HTC Desire S using XDA App

 

[george1234567890]

Cool thanks,

How do i get adb?

EDIT: GOT IT

 

[mtothearkus]

With got it you mean adb or the downgrade?

Sent from my HTC Desire S using XDA App

 

[george1234567890]

Adb.......

Gonna try this give me an hour and i will report back...

Is this safe?

 

[mtothearkus]

for me it worked on first try. But be sure that you backuped everything! The downgrade will erase everything! ! !

Sent from my HTC Desire S using XDA App

 

[foX2delta]

What's the difference between using the misc_version here to "change" your version compared to getting your phones misc version .img from "dd if=/dev/block/mmcblk0p17 of=/mnt/sdcard/mmcblk0p17.img" and then altering it and re uploading it?

To my understanding the one uploaded just patches your misc version where the other one you do it manually.

Or am I so lost I should go home?

 

[mtothearkus]

should work either. but with the script it is easier, isnt it?

 

[george1234567890]

Because its easier for newbies to understand and your way uses more adb
Not that many people understand adb

 

[foX2delta]

Thanks, was just wondering.

 

[Troja]

Hello, nice would be a link from the Ruu.

 

[mtothearkus]

See the development forum sticky

Sent from my HTC Desire S using XDA App

 

[amidabuddha]

Hello, nice would be a link from the Ruu.

It is not wise to link a specific RUU, since there are already new versions for all regions (Europe, Asia, etc.) and soon the branded will join also.
However a link to the sticky Stock ROMs thread should be handy

 

[Troja]

I can not find them


Do I need to flash the downgrade.zip?

 

[george1234567890]

I can not find them


Do I need to flash the downgrade.zip?

This is the same one that mtothearkus posted in is second guide:
http://ff06d05.filefactory.com/dl/f...0805U_38.03.02.11_M_release_177977_signed.exe

I will add to my dropbox for faster download

EDIT:
Dropbox dload isnt working