Cell Phone Operator Network Unlock SIM Attachment for Nokia

Pros: It's cheaper than unlocking the phone and warranty is still intact. And works!! At the moment, it works with Nokia N73 and Nokia 5200 (an European mobile, not available in the USA I think).

Cons: You have to cut your sim card, and sometimes it takes a little bit more time to be ready for calling, but I think it's my phone problem.

Other: I recommend everyone to use this kind of unlockers, they're very cheap and harmless.

Pros: Works inmediatly, make a little bit space, put the cell phone sim on the SIM Attachment and that's it.. no problems at all when installing the SIM Attachment!

Cons: The chip is a little bit thick, I had to use a screwdriver to make more space for the chip. But after that it fits very well

Other: Perhaps its possible to make the chip a little bit thinner. But after all, it's a lot cheaper than to unlock it in a store.

Pros: Easy to use
Cheap way to solve the problem
Nice Colour, Transparent almost

Cons: Have to cut in the sim-card
Do not think that it works for last generation Nokia phones (e71 for instance)

Other: If it works it is a very cheap way to "unlock" your phone and you can use it time after time. After you have cut a corner in the sim card, it is still possible to use the sim-card in another phone without any modifications.

Pros: Works inmediatly, make a little bit space, put the cell phone sim on the SIM Attachment and that's it.. no problems at all when installing the SIM Attachment! It's cheaper than unlocking the phone and warranty is still intact. And works!! At the moment, it works with Nokia N73 and Nokia 5200.

Cons: Once you put the card into the cell phone it's better avoid removing It. Of the 3 that I ordered, one had intensive use and several cell phone changes and just got broken.

Other: If it works it is a very cheap way to "unlock" your phone and you can use it time after time. After you have cut a corner in the sim card, it is still possible to use the sim-card in another phone without any modifications.

Pros: Works perfectly
No setup or other thing to do than insert it
Not only cheaper than unlocking, but can be moved from one phone to another.
Does not void telephone warranty.

Cons: Seams rather fragile
Sim card needs to be modified (cut or perforated) to make room for the unlocker's small chip to fit.

Other: I am happy with it, it works as I need it to work. Buy it if you have a Nokia 1112 because it works perfectly.