If you unlocked your device using HTC unlock method (
Welcome to HTCdev) and have Hboot 1.5
1. Enter FASTBOOT, and then connect to your computer (FASTBOOT USB will be shown)
2. Open command prompt in your computer
3. Relock your device by typing "fastboot oem lock" , device will reboot.
4. Enter FASTBOOT again (you will see *** RELOCKED ***)
5. Apply the RUU.
located here
http://forum.ppcgeeks.com/htc-evo-3d...-roms-com.html
6. You device will be back to stock rom unrooted
Note: It will say "relocked" and not locked this way Sprint/HTC knows you have voided your warranty without the need to look up your serial #
may need this to run cmd if you no longer have after you unlocked
Download rootevo3dnew.zip for free on Filesonic.com
MD5: 48c19a3a07ed53441e70309df9e3a8af
P.S.
Mods if you dont want it here go ahead and move