If you bought your new iPhone 5 from a company that offers mobile services, then the device is most likely locked to that specific network. This means that you will only be able to use the phone with a SIM card of that operator. When you decide to unlock iPhone 5 devices, it means that you are looking to make your phone compatible with other mobile carriers as well. After unlock, the phone will recognize any SIM card of the operators of your choice. If you know your way around cell phones an computer, you can unlock the device yourself. However, if you have little to no experience in tampering with cell phone, then you should turn to a cell phone service store where pros can do the task for you.
The truth is that as long as your know the steps to take, unlocking your iPhone is no rocket science. The most complicating thing is to actually find the right unlocking software which is compatible with your iPhone model. Once you have downloaded this software, you need to open it and follow the instructions given. Make sure that before performing the unlock, you have made backup of all your cell phone data using iTunes.
It is recommended that you make a folder called UNLOCK or REDSN0W on your desktop and install the software there. You then have to unzip the files and run RedSn0w. Once you have requested for Cydia to install, you can select the unlocking function inside the software. Sit back and wait as you see how the software is preparing to unlock your iPhone 5. Once the process is complete, you will see that the device needs to reboot. Make sure you let it reboot before trying to do anything else with your cell phone. And there it is: you now have an unlocked iPhone!