Who knows for sure since we really don't know how it's done. I've wasted $9 on a lot dumber things, that much is certain!
Now my rant for the day:
For the record, this whole 'lock' business bothers me beyond words. I'm not trying to cheat AT&T for their services here in the US-even though I AM frustrated with their crappy service. I'm traveling abroad to visit family. I've been an AT&T customer for a LOT of years. I had an iPhone 4 that died right before my contract ended and before the 5 came out, needed an iPhone so used up my 'upgrade' for a 4s. My account is current. I've never been late or dinged with any sort of fee for termination or anything like that. And my bill is well in excess of $100 a month. AT&T makes money off of me like I'm a printing press. I've explained all of this to the nice folks at AT&T and can't get them to unlock my old iPhone 4s, so I'm trying this. And I find all this especially galling now that the Verizon iPhone 5's are coming out unlocked...thanks for listening.