Question [Q] Update firmware with s-on

Dear All,

I want to ask, how to update firmware only with S-On and unlocked bootloader possition?

my phone now
ROM: viperS 3.1.4
Firmware: 3.19.401.101 CL157254 release keys
HBOOT 1.29.0000
4XTRecovery v1.0.0.5 RC3

and i want to update firmware to 3.33

thanks.

HTC SENSATION XE

ViperS 3.1.4