Kies is software that runs on your computer. The other user was suggesting Kies as a method to get to OTA 4.3. A bad idea with a MDK phone. Right now you have a phone that almost anyone on this forum would buy. Don't diminish the value by making it like all the other phones with a locked down bootloader.
Then follow the thread further down to install TWRP and then not only can you go to 4.3 but you can go to a Kit KAt 4.4 ROM.
Whatever you do don't kill a MDK phone.
I'd be happy to trade a fully stock MK2 phone that can be unrooted if you like with a glass screen protector, box and factory charger.
It is black.
---------- Post added at 07:14 PM ---------- Previous post was at 07:10 PM ----------
Please don't give this kind of advice to someone that has an MDK ROM phone.
As a noob you probably have no idea about KNOX and how locked the bootloader is after moving from a MDK ROM.
This is bad advice.
Actually, I Know all about KNOX and I'm not a noob. He said nothing was custom and he was trying to update his phone, so i'm assuming he doesn't want to root. I'm on build MK2 rooted running HyperDrive ROM 13.0.0, so he can still use a bootstrap recovery, Disable KNOX w/o Tripping the KNOX Warranty Counter and install custom files and run a good custom ROM that offers a custom kernel even.
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