[AT&T, Rogers HTC One X, Telstra One XL] Bob in Northern NJ:
10/04/2013 UPDATE NOTE:

These instructions were originally written based on my original experience with updating from Viper 3.2.8 to Viper 4.0.0 and then the 4.1.0 update. Since the 4.2.0 Full Release, I advocate installing the 2.15 firmware update, which will give you the stock radio. Then do a clean install of the 4.2.0 ROM. This will give you the stock kernel. This is the configuration that I am presently running now, and have been since the 4.2.0 Full ROM release. I am VERY happy with the radio and WiFi performance, and the ROM itself is OUTSTANDING as usual. Do we expect anything less from Turge? Seriously!

BACK UP YOUR STUFF

Update your Recovery to TWRP 2.6.3.0 found here: http://teamw.in/project/twrp2/99

Do a nandroid backup in TWRP, do a titanium back up of all your apps (their color coded

WHITE

and any

GREEN

color coded system files. Copy 4.0.0 zip and 4.1.0 zip files to your SD card. The downloads for them are on page 1 of this forum. Download Beastmode Reloaded 3.5 kernel zip file here: http://xdaforums.com/showthread.php?t=2165880 and copy it to your \sd card as well. Then connect your phone to your PC and copy the entire contents of your internal storage to your computer.

Although this is redundant, you now have your system, your data, your call history, MMS/SMS history, contacts, etc backed up in 3 different ways.

1. Boot into Recovery. In Recovery Wipe Menu, wipe Cache, Dalvik Cache and then do a Factory Restore. TWRP does

NOT

wipe your internal SD card as part of the Factory Restore.

2. Go back to the main menu in recovery, select Install, and then select the 4.0.0 ROM. This will open the Aroma Installer.

3. Follow the install instructions on your phone very carefully! Make sure you make all the correct selections, especially carrier selections. Be sure to select "Full Wipe" option. Again, this won't wipe your /sd card files.

4. Wipe Cache and Dalvik Cache again, and boot.

5. Flash the 2.15 Firmware update. Download and instructions are here: http://xdaforums.com/showthread.php?t=2423735

6. If you followed the instructions for firmware update, your phone is now booted. Reboot the phone into recovery

7. Wipe cache, and dalvik cache again, and then go to the Recovery Install menu. Install the 4.1.0 update. Phone will reboot when done.

8 Follow the pre-Beastmode kernal installation instructions found here: Zarboz post on 8/31/13, 3:05 PM http://xdaforums.com/showthread.php?t=2165880&page=17 You must enable read/write in ES File Manager in order to make these changes.

9. Boot phone into Recovery, wipe cache, and dalvik cache.

10. Go back to Recovery Install menu. Select the Beastmode Reloaded 3.5 zip file. Run it. Select the default installation.

11. Reboot the phone when done.

12. Download Titanium Backup from the Marketplace. Connect your phone to your PC and copy the TitaniumBackup folder from your computer back to the internal storage of your phone. Open Titanium Backup App on your phone, and restore all of the white apps and green system file back ups that you did in the beginning. (This restores your apps, contacts, SMS messages, call logs, etc.)

13. Reboot your phone.

14. Refresh your battery per HTC's instructions found here: http://xdaforums.com/showthread.php?t=712990

That's it! Enjoy the new Sense 5 Viper ROM!

Note 1:

There are many posts all over this forum from people, (myself included) who had different problems after upgrading, such as phone won't wake from sleep mode, proximity sensor doesn't work, various button assignments in Venom Tweaks don't work, and the worst one of all, Radio and WiFi signals continuously drop. If you follow the above instructions, you shouldn't have any WiFi signal drop issues at all. If your carrier is AT&T and you have 4G LTE, then try downloading the AT&T 3.18 Radio from the Venom Hub and install it. (Otherwise use the Radio from the Hub for your carrier.)

The Hub will download to /sdcard/Venom/Addons folder, but it won't install. It will just take you to Recovery. Once in Recovery, you have to manually install via the path above.

NOTE2: These instructions are for Installing the Viper 4.0.0/4.1.0 ROM ONLY!

If you flash to a different ROM, you will more than likely need to do a system wipe in recovery. Not every ROM install utilizes a system wipe function in the installer like Turge does for us with Viper.

If you still have problems, there are lots of suggested solutions that can be found throughout this forum beginning on page 1600. If there are still issues, you may want to do a clean install. Directions are on page 1698.