Originally Posted by
SpookDroid Have you called Samsung Support yet? Or gone to a Samsung Repair shop? If you bought this factory unlocked, then you should still be able to claim your warranty. If you bought this as unlocked BY SOMEONE ELSE, then the scenario of being pre-owned and the IMEI being blocked or something seems plausible.
Cheers guys I'll contact them and see what happens. When I called my carrier again they found the imei and said that it isn't blacklisted (which makes sense as the phone still functions perfectly fine) but every imei checking website pulls it up as invalid or 'ready for activation'. Could the person I bought it off have been sold a developer edition by mistake? (he was also a prison warden so commiting fraud us the last thing a civil cervin should do in the UK). I know this happened with some note 2s as they were sold and had no imei number present on the phone. Other than that long shot I have no idea but I'll email them and see what they say