Default HTC Evo 3D GSM


I have an evo 3d gsm which has (bootloader) version-main: 1.24.415.6. I want to change to when ever i try this command it hangs. can anyone help me to change this version

root@android:/data/local/tmp # chmod 777 ./misc_version
chmod 777 ./misc_version
root@android:/data/local/tmp # ./misc_version -s
./misc_version -s
--set_version set. VERSION will be changed to:
Patching and backing up partition 17...