Hi there, I've unlocked my 16GB iphone, using yellowsnow as per describe. And its fully working. In the 'about' menu it says: carrier 2.9 Now im trying to unlock my bro's 8GB and it not working. I restore the phone to new state (with an 02 pay as you go sim card in, run quickpwn (put in a vodafone sim), apply the yellowsnow update. In the 'about' menu, its says carrier O2 2.9, with the O2 sim in and vodafone sim. When the Vodafone sim is in the iphone, the 'carrier' menu vanishes. In the top corner says: Invaild Sim Now using the vodafone sim always through I get the same kind of issues but in the about menu under carrier i get: Null Null any ideas?