I was a little scepticle at first. How could this work ?
But it does ! My new LG touch screen phone was on the Orange network. By simply attaching this product to my old Vodaphone SIM the phone was immediately working on the new network of my choice.
I don't know how it works ( I am no Techie ). I only know it does AND it saves the inconvenience of having to take the phone to a shop to have it permanently unlocked - let alone the expense !
So I am happy to write this quick review of this excellent product. Thank you.