There really is a need for a comprehensive set of instructions (but I'm not quite free enough to do it myself). NOTE - THESE INSTRUCTIONS ARE FOR THOSE ALREADY ON THE ICS LEAK WITH HBOOT 2.21 AND AN HBOOT THAT READS "TAMPERED - UNLOCKED." If you are on hboot 2.11 or any other hboot, I can't say for sure whether the following applies to you. If you are on GB, I can't say whether the following applies to you. It was my experience only, and I was successful, and I'm just sharing because after 100+ pages of pretty much the same 10-12 issues, I figure I can at least try to make things easier.
1. Don't try to get S-OFF if you are unrooted or have a locked bootloader. Read the darn instructions through from beginning to end, and review the OP's in this thread, and search for any issues about which you are curious. In fact, go read them again from beginning to end just to make sure you get it right, then come back here.
2. BEFORE YOU START, make sure you have available both an *.img file and PH98IMG.ZIP of (1) your recovery; and (2) your boot image.
3. PULL YOUR SDCARD AND USE A DIFFERENT CARD FIRST. I'm sorry, anyone who has whined about wiping their only card --- you shouldn't play with grown-ups; you didn't read the instructions. If you only have one card BACK IT THE HELL UP, cause it's gonna get wiped.
4. Back up your "internal" SD card. If you're running 0.2 version of ControlBear, it shouldn't get wiped, but you never know what else is going to happen that could wipe it. (Mine was untouched).
5. Gee, you could also do a Nandroid and save it to your PC.
6. All the Juopunut files go in the same file directory on your PC as fastboot.exe and adb.exe.
7. Kill HTC Sync if you're really still running it.
8. Open a command line box; navigate to the directory where you have adb and fastboot (and controlbear.exe and the two supporting files, it's own boot image and its hboot.)
9. Make sure you are admin on your PC.
10. Make sure your Rezound is fully charged, back cover off, connect to a cable (but not yet connected to PC) and you have your insulated paperclip or whatever tool you're going to use. LOOK AT THE PICTURE to be sure you know where you need to touch the wires. You will have time. Put the phone face down on a table or desk.
11. Consider having a metronome around or something to beat out 34 bpm so you know the frequency.
Here's a 35 second track (in *.aac format) you can loop on your computer while you're doing it so you have a feel for the interval. I used this when I got S-OFF.
12. Run Controlbear. When it tells you, connect the device.
13. If it doesn't seem to see the device after a few minutes, kill it and start it over. Leave your phone alone.
14. Eventually, your phone's going to start rebooting and you'll get a prompt to do the wire trick. You will get that prompt for a few minutes and you'll have repeated chances to do the trick. After that, ControlBear talks about beer and other nonsense, and either tells you that you are still sober (exploit failed) or otherwise just sort of sits there. After a few minutes, if you seem to be nowhere, kill ControlBear (close the DOS box) and restart it. Leave your phone alone. Ignore any prompts from the PC about devices connecting.
15. Repeat #14 until: (1) ControlBear reports success; or (2) Nothing seems to be happening (and your phone has a green arrow pointing down and Juopunut on the front).
16. If things are stuck that way for >5 minutes (AND you're seeing no changes in your DOS box, no information scrolling, words such as "mmm, tasty", try to reboot into bootloader on your Phone. You might already have S-OFF (that was what happened to me, even though ControlBear never reported success). Be patient, wait a few minutes. Relax. You aren't going to brick your phone. As long as you can reboot to bootloader, ANY bootloader, you aren't bricked.
17. If you aren't S-OFF, go back to #14, if you are, go on.
18. Power off the phone. PULL THE SDCARD. If it isn't your "default" SDCARD, you don't need it anymore, you can put your regular card in. If it is your ONLY card, format the card Fat32 on the PC using a card reader.
19. Using a cardreader, put Juopunut's BOOTLOADER on my SD card as PH98IMG.ZIP (i.e., rename it, it's the file with hboot in the name), reboot to bootloader and accept the update. From the "new" Juopunut's hboot, power down the phone. Remove the card again.
20. Using a cardreader, remove the PH98IMG.ZIP of the hboot from the SD card. Put the card back in the phone.
21. Reboot to bootloader, selected fastboot, connect to your PC, using fastboot USB reflash Amon Ra. (You could also do this as a PH98IMG.ZIP if you choose by putting it on the card).
22. Power off. Remove card AGAIN, put boot image on card as PH98IMG.ZIP (taking off the old PH98IMG.ZIP if that's how you reflashed Amon Ra).
23. Reboot to bootloader and flash your boot image, either via fastboot or as an PH98IMG.zip cf. step 21.
24. Power OFF, boot normally, which should finally get you past the Juopunut splash screen. You might even bootloop once or twice (I did), but you should get a normal boot at that point.
25. Note, if you boot to bootloader, flash recovery, then go from bootloader directly to recovery you will probably have have issues. Instead, after step 24, Power off or restart into recovery AFTER you've successfully booted your ROM. Amon Ra should behave perfectly normal at that point.
The preceding was my experience at any rate.
Yeah, Unrevoked was a lot easier and quick for those of us coming from Incredible, but it really isn't impossible to do this if you remain patient, pay attention, and stay calm.