I'm not even close to being familiar with doing this in Samsung devices, you'd need an expert in that region (which I am not) for a more thorough step-by-step guide.
You don't install the security patch itself.. You need the firmware identical to (or newer) the OS you currently have atm because flashing an older version can (and usually DOES) brick the device. Most the info you'll use to identify and search for your firmware will be located somewhere in Settings-AboutPhone. Look for Model numbers and possibly Build numbers.. Match them to the firmware you're searching for. Since you can't find it due to lack of access, get the absolute newest firmware available for your model number. Yes, different carriers add extra letters to the model number, like Verizon Wireless has a "v" and Sprint usially has a "p" at the end
- Make sure your Samsung drivers and ODIN.exe is installed to your PC.
- Make sure you have that firmware for your specific device I had mentioned..
- Put your device in some kind of recovery mode, XDA forums has lots of info regarding that mode and better walkthroughs than I can provide, currently.
- Start ODIN program, connect phone, drag and drop the Firmware .zip.. Will take a bit to do because your device holds a ton of memory and partition info, takes awhile to process multiple gigs of data into a small device.. Hope that helps!
thats what ive done but i will try again