Default [Q] Network Unlock?

Hi,

Been a while since I thought about my DS but a family member's phone died recently as I was moving house and I found my old HTCDS there - he's on a different network to me but not sure if I can manually unlock the phone for any network myself.

in case it's relevant:

SAGA PVT SHIP S-OFF RL
HBOOT-6.98.1002
RADIO-3821.08.00.24_M
eMMC-boot

And it's running ViperSaga 2.2.0

So, can it be unlocked to accept sims from other networks? Currently if I have a sim inserted it just seems to hang on the lock screen but not respond to an unlock drag.