[HTC Rezound] Yakuzagang5:
No worries about the question, we're glad to help (since you didn't post this in the Development section :P lol)

Anyway, as long as you are S-ON, it shouldn't be too bad of a process, just lengthy. First, you'll need the Android SDK so you can get Fastboot, etc, as well as all the HTC device drivers installed, and you'll need to flash Amon RA recovery over.

Amon RA can be found here:

http://xdaforums.com/showpost.php?p=23781936&postcount=428

**Make sure the Recovery file is in .img format, not .zip or anything, and place in the same folder as Fastboot (which is located in the Android SDK folder).**

You'll need to pull the battery, plug the USB cable into the computer, plug into the phone, replace battery, and hold down 'Power' + 'Volume Down' until the screen flashes the HTC screen. (Not sure if that's the only order, but it works). This will take you into Fastboot.

Next, you'll need to open a command prompt and 'cd' to your folder with Fastboot in it. Type:

fastboot flash recovery recovery-ra-vigor-3.15-gnm.img

into the command prompt and hit enter. It should show on the command prompt a couple lines of time it took, etc. and when done you will have Amon RA recovery.

Now you will at least be able to charge your phone!! From the phone, you can select 'Bootloader' then 'Recovery' and you will boot into recovery, which will allow you to charge your battery. You can check the charge status of the battery while in recovery in one of the menus, can't remember which one. (Fun tip: you can use 'Home'/'Menu' to scroll up/down, 'Back' to go back and 'Search' to select, since the hardware buttons are so difficult to press)

Once you get the phone charged, you have a couple of options. Since you stated you wanted to go to stock, I'll explain the steps to get back to the state the phone shipped with.

Once you get a good charge, you will also need to re-lock the bootloader to go back to stock, which is also done in fastboot by typing:

fastboot oem lock

(Get to fastboot by Battery Pull>Battery Put Back>Power + Volume Down, all while connected to a computer, just like when doing the Recovery flash)

BACK TO STOCK::

You can do this one of two ways, either run the revert using a .zip, or as a .exe connected to your computer. Personally, (and I know I'll probably lose credibility here lol) I prefer the .zip method, although many swear by the 'True RUU' .exe method.

**Here's a little aside to get you so you can get all of these files onto your phone. There's an option in Amon RA that mounts as removable storage to your computer so you can transfer files. Select 'USB-MS toggle' and then select 'USB-MS Toggle SDCard'. Then you can transfer all the files you need before continuing.

First, download the stock "ruu" zip from here:

http://goo.im/stock/vigor/ruu/RUU_V..._1.12_9k_1.83_V_APT_release_221502_signed.zip

and you will need to rename it to PH98IMG.zip and it will need to be placed on the root of your SDCard, not in any folder. Then download the MainVer.zip from here:

http://xdaforums.com/showpost.php?p=23169557&postcount=4\

which can be placed anywhere on the SDCard, but I would place it in the same place as the PH98IMG file for ease.

Once you have the PH98IMG file on the root of the SDCard, and have the MainVerLow zip there also, continue on.

To flash, go to the 'Flash zip' menu in recovery, and locate the setMainVerLow.zip. All this does is set the Main Version low, so hboot (or whatever) doesn't kick it back saying you can't downgrade. This flash will only take a second, and when complete, go back to the main Recovery menu.

It probably doesn't matter, but I would wipe data/factory reset again just to be safe. Do this by selecting 'Wipe' then 'Wipe ALL data/factory reset'. Once done, go back to the main Recovery screen.

Now you will want to reboot into bootloader, which I believe is under either 'Other' or 'Developer Options'

The phone will reboot, and book back into a screen similar to what you saw in fastboot. Some purple text will scroll saying stuff about looking for some file, and will find the one you just put on there and ask if you want to update now. Click the power button to confirm the update. It will show a progress bar on the side, as well as list the parts it has updated for you. It will get around halfway done or so and reboot itself, but DON'T TOUCH ANYTHING OR REMOVE THE BATTERY!!! lol it will reboot and finish the second half of the install. Once it's done, I think you need to hit 'Power' one more time to reboot, but once it does you will be rebooted and load up the completely stock ROM that originally shipped with the Rezound. Of course, from here you can go to the system update menu and update to the latest released OTA.

EDIT:: Just wanted to add, none of what I have written was developed/discovered/first-posted by me, it is the work of other, MUCH more intelligent people other than myself. So don't thank me for anything other than putting them all here lol