Default HTC ONE S Unlock

Hi all,

I've been trying to unlock my phone so I can use it with another SIM. I got the unlock code by this method I was running Dirty Unicorn ROM, so it didn't work. It said in the post that I needed a Sense based ROM. I tried to install Venom S/C2 but I couldn't, I flashed boot boot the boot_onesc2 (because I'm S-ON) and now I can't recover the backup I did before the process. I don't really know how I should flash the Kernel, after or before the ROM. How can I get back my backup? Do you know other Sense based ROM's that I can use?

Thanks in advance for the help, Im kind of new in these stuff