02-13-2014 10:01 AM
The easiest way to update your phone is to wait for the update to arrive from your carrier. Many carriers are slower at testing and evaluating a new OS so you might end up waiting.
Another method is to look online for the version of OS that you seek and to download and install it yourself. There are tutorials in these forums which explain how to load an OS from any carrier worldwide. You can also check out Crackberry for instructions on finding and loading a new OS to your phone.
Just keep in mind that if you load an OS that is not yet offered by your carrier and anything goes wrong, you won't get support from your carrier; you'll have to come here for help.
I hope that helps you.
02-13-2014 03:20 PM
If you want the update from a carrier that has already released it, then yes you'll need that carrier's SIM card. That's how your phone identifies from which carrier to search for an update.
However a SIM card from a specific carrier is not necessary when searching for and installing an update from another carrier or when downloading it from the internet.
02-14-2014 05:03 PM