YES! We sell original SAMSUNG factory codes - the very same codes used and sold by the carriers. Using these codes you can permanently unlock your handset.
YES! Because supporting IMEI unlock it is a standard functionality of your phone and not a hack. This means that after unlock you can install any application or even update the firmware.
NO! You just need to insert the code provided by us. Please read further on our Help Center: http://support.samsungimeiunlock.com/entries/20359787-how-to-enter-the-code-in-samsung-phones
NO! Unbranding is a different things and you cannot achieve it if you unlock your handset. Unbranding can be done if you install a different version of firmware into your handset (not the version of the carrier that sold the phone).
We do not know a place in the world where exists laws that prohibits you from unlocking your phone. Anyhow you can confirm this by checking your local legislation before proceeding to the unlocking.
Our service enables you to network unlock your SAMSUNG allowing you to use it with any SIM of any compatible carrier, all over the world.
As there is a functionality of your handset normally there is no risk involved! Anyhow as nothing is 100% certain you need to be aware that although very unlikely still can appear issues generated by some bugs of the phone software, existing hardware failures of your specific handsets or any other issues that we cannot foreseen at this moment.
Usually we deliver the codes in less than 15 minutes. If you haven't received the code in time check your SPAM folders or check http://www.samsungimeiunlock.com/check-order.php for an online copy of the email with the code. Anyhow very rarely (~1% of our orders) processing an order it could take up to 24 hours. This happens because sometimes from security reasons our system requires manual review for some orders.
Unfortunately No! No unlock, software patch or hack can change a phone to support a different technology.