Thanks - I've now actually got hold of the phone and it turns out it's a 3GS and not a 4 as I was told..
It's currently installed with this:
Model MC637B/A - iPhone3GS
Firmware 6.0.1
Baseband 06.15.00-6.4_M3S2
I've been reading all evening, and went down the route of trying to boot it...
Hi
First off, I'd like to say I realise that a lot of how-tos and FAQs are available - but I kind of need to know how to proceed in these particular circumstances without my actually knowing for certain where I'm starting from... Let me explain.
Short version: I remotely-upgraded the kid's...