halim2731 - May 18, 2013 at 11:58am
You can use to update your current firmware to 6.1.3 using redsnow, and redsnow will only supports a tethered jailbreak, which means that you need to connect your iPhone to the computer on every reboot (except iPhone 3GS with older bootrom), if you stuck on at any stage on redsnow you can contact me for clearance.