in your phone. Without being too smug, both of mine worked perfectly and I dearly hope yours did too. If you've slotted it in and your phone is reading something like 'No service' or 'SIM not recognised' or 'No SIM installed', then I'm sorry to tell you that this might be the end of your SIM card's life. If you're considering slicing up your SIM then best of luck! And be sure to only use scissors when being supervised by a responsible adult. How did your SIM fare when it went under the knife? Chip in with your story in the comments below or cut across to our Facebook page . anonymous 25 September, 2012 18:13 Daniel Rawr 25 September, 2012 19:25 anonymous 25 September, 2012 21:49 @Daniel Rawr It is a giffgaff SIM? Awesome network anyways. anonymous 25 September, 2012 22:10 worked flawlessly.thank you very much!!! anonymous 26 September, 2012 04:25 @Daniel Rawr It IS a giffgaff SIM that is being used. giffgaff is not an official Apple carrier, so because giffgaff runs on the O2 network, iphones display O2 on the screen instead, even though it is operating on the giffgaff network. anonymous 26 September, 2012 06:48 Ha! It works. Extraordinary. anonymous 26 September, 2012 08:56 Worked perfectly, thanks! My advice is, take it bit by bit. I went overboard when I cut my last sim down to a micro and the thing used to move around a bit and lose contact. Not much risk of that happening