i have a Z3 with S/W Version R452B_G_08.01.05R and i want to remove RSA protection so i can start my modding. i used to mod my L7 but that was a few years ago and i kinda forgot how to do this. can someone please point me to a guide or something like that or can i just flash a Monster Pack that already has RSA protection removed?

Note: its a new Z3 that i got today with NO mods yet. just stock settings and firmware