[mta2]

Originally Posted by OMJ

I'm no expert on hboot 1.50 & the unlock/root process, but I think your issue may be due to the kernel in his ROM. Try flashing a stock rooted ROM, Karl has then here:

http://forum.ppcgeeks.com/htc-evo-3d...17-2012-a.html

use this one...

Shooter_S_Sprint_WWE_2.17.651.5_odex.zip
Dev-Host - The Ultimate Free File Hosting / File Sharing Service

I tried this; did it through recovery and the phone booted up fine but right after the Sprint logo, it shuts off.

Karl, I installed the Viper from recovery also.