1.) Model Number: Samsung Galaxy Note 2 N7105 2.) Firmware Version:4.1.1 3.) Baseband Version: n7105dxalj1 4.) Kernel Version: 3.0.31-383479 5.) Build Number: jro03c.n7105xxalj5 Carrier: Bought in singapore from singtel but plan to use in UK with o2 Country you are using your phone in: UK Pulldown indicates no service, when trying to turn on mobile data, i get "insert sim card to access network services", in settings, mobile networks, i get "insert sim card to access network services". Basically, it worked fine with my pay as you go card from singtel whilst i was in singapore and i was able to use the internet. But when i put in my UK o2 sim card, i cannot get access to 3G services (surf net), but i can still make calls and receive texts. Been to the o2 shop and they say it isnt a sim problem as the sim allows me to use the internet on my wife's iphone. so i'm thinking it could be something to do with the 3g setting on the phone. and yes my phone plan does allow 3g and internet services. am considering rooting if that will allow me to get 3g. have tried network unlock on sim card, pulling out battery whilst phone still turned on. thanks for the help!