[HTC Desire S] TheOldMonk:
Hi all :)

I noticed that many of us while trying to flash HBOOT's brick our devices as there is no single thread and no single unified noob proof solution for flashing Revolutionary's S-Off 'ed+ Rooted Desire S all the way from HBOOT version 6.98.1xxx to 0.98.2000 (PG8810000).

Hope this helps.. :)

Ok, less talking; more work :D

This Thread will help you if:

- if you want to change your HBOOT version to 0.98.2000 (PG8810000)

- if you want to S-On your previously S-Off 'ed Desire S as to make use of warranty (as there is no way of making a S-Off device having Revolutionary's HBOOT v.6.98.1002 -to- S-on again without flashing the HBOOT again).

- AFAIK, if you want to flash an RUU (read ROM Update Utility AKA the stock ROM installer) you won't be able to do it you are S-off 'ed using revolutionary method. So for doing that again you need to have the HBOOT version as something like 0.98.xxxx or 6.98.2000 (experts need your comments on this one)

This guide won't be telling you of how to make it S-on again (though theres a link to youtube step-by-step video tutorial of how to do it in the update section below; Do NOT ignore the video's ending :p) but just of how you can go ahead with changing your Revolutionary's default flashed HBOOT version 6.98.10xx -to- v.6.98.2000 and then -to- v.0.98.2000 (PG8810000).

For more updated info please refer to "UPDATE" section below:

UPDATE:

Prerequisites:

- you need an HTC Desire S phone :p

- HBOOT version 6.98.1xxx (how to check HBOOT version? just read step#4 & step#5 to find out your HBOOT version)

- S-OFF and Root 'ed using Revolutionary (also known as AlphaRevX; its the old name 'duh)

- your data cable and a working PC with HTC Fastboot Drivers installed (get them here)

- make sure you don't have HTC Sync software installed (check it in Add/Remove Programs found in Control panel of your PC); if it is then please remove it before starting with the following process!!!

WARNING:

DO NOT..I REPEAT AGAIN..DO NOT DISCONNECT IN-BETWEEN THE FLASHING PROCESS(Step#6 onwards) OR YOU MAY DAMAGE (READ "BRICK") YOUR PHONE IN A VERY BAD WAY!

Instructions:

1- download and extract the attached zip file in a empty folder (make sure NOT to touch/merge any of its contents)

2- make sure USB debugging is switched "ON" in your phone's: application settings menu >> development settings

3- also make sure that fastboot mode is switched "OFF" in your phone's: Power settings menu and by default your phone is configured to switch to charging mode when the cable is connected (JUST DO NOT CONNECT IT YET)

4- Now, reboot your phone into bootloader mode by first switching off your phone and then press the Power button and the volume down key simultaneously.

5- you should be able to see white screen with things like Revolutionary on top, S-OFF, HBOOT ... 6.98.10xx etc.

6- now go into the fastboot mode and then just connect you phone until the "fastboot" turns into "usb fastboot" OR "fastboot usb" either of these

7- now go inside the extracted folder named "FlashENGHBOOT698"

8- click on bat file named "Click This" and sit back

9- a black screen should popup as soon as you click on the bat file@ step#8 and you should see "OKAY" at the end of successful flash but it would be too quick so keep on lookout

10- select reboot on the bootloader's menu

11- reboot back to bootloader's menu to check if HBOOT's version has been changed to 6.98.2000

12- repeat the process from step 8 BUT make sure this time you go inside the other folder named "FlashENGHBOOT098" (notice the ZERO before 98)

13- follow the steps upto step#11 to check if the HBOOT's version has been changed to 0.98.2000 (PG8810000)

Voila! :D

Note:

This is just a compilation and a slightly edit of the batch file code to flash the second flash Image for the 0.98.2000 HBOOT :) All credits goes to the following people:

Credits: (Yay!! time for beer:D)

Would like to thank Maarten for his post and tool here

lgl0 for all his valuable info here

DesireFanatics for his step-by-step tutorial video here

Last but not the least anchemis for sticking and guiding me all the way :D

And to all those who have helped me here and here.

Disclaimer:

I won't be responsible for any damages done to your phone. Please attempt/flash with caution. though this method has been tested personally by me and is working fine; have also tested rebooting my phone so as to make sure bootloader does not give up on me.