ok read more than i should about this subject with no answers,,, 2007 C5 2.2 VTR+ , telephone request me to enter PUK or PIN number ok not a problem i have them but where do or how do i put them in ...... Tried my sim that works also a brand new un-used sim also tried a 2G sim. I've read maybe 100 try this or do that but all i or we need is press button ???????? thanks