YOU DO NOT MAKE THE RIGHT INSTRUCTIONS
1.) Make sure you have required HTC drivers installed
2.) Download Hasoon's All-In-One Toolkit
3.) Unlock your bootloader through htcdev.com (hasoon's toolkit can help)
4.) Now perform S-Off. You have to be on Stock Ruu to perform S-OFF, so best to do it now while you are still on stock
5.) Once you successfully S-OFF your device, you will then need to SuperCID your device
6.) When your device is S-Off and has SuperCID, you can then download this Amaze_ICS_RUU ..Rename the RUU to PH85IMG.zip and place it on the root of your EXTERNAL SDcard. Once this file is on the SDcard, do a battery pull, then turn the device back on while holding down the VOLUME DOWN button. it will prompt you to install, select yes and YAY, you will now be on ICS.
7.) Take the PH85IMG of the RUU off of your SDcard, and then put this PH85IMG of HBOOT on to the SDcard. Repeat the same instructions as step 6 to flash this IMG.
8.) Congratulations, you now have stock ICS. If you would like to flash custom ICS or JB roms, continue with steps 9 & 10
9.) Finally, Use Hasoon's toolkit to, Flash 4EXT Recovery AND
10.) Then to flash supersu.zip to gain root (also done using hasoons toolkit)
YOU MUST FIRST Unlock your bootloader
Thanks for All