unlocked iphone got blocked after inserting second SIM
Hi,
I bought a brand new unlocked Iphone6 on Ebay. It worked fine with the Virgin network in the UK, however, I then went abroad and changed the network provider to a different one and I am not able to use the phone as the new SIM is blocked. Does it mean the phone got locked and requires being unlocked?
Many thanks for any advice
iPhone 6