I have a Samsung Galaxy S4 GT-I9505 with stock 4.3 android of BTU (MJ7).
I entered today Kies to check for updates (like I do every few days) and I got a message my device got a newer firmware.
OK so I clicked on update and accepted the terms and started the update.
At first it wrote "Downloading firmware upgrade components" and right after it showed the error "Failed to run firmware upgrade.Unknown error occurred."
I googled the problem and I tried already resetting the computer and the device, re-installing Kies3 and re-installing the USB drivers. Nothing helped.
Moreover, when I check for updates through the device settings it says I have the latest firmware.
My Knox flag is 0x0 and the device status is written as official.
I don't have any other computer to check.
So what is the problem and how to solve it?
Is my computer at fault? Or the device? Or Samsung's servers?
And why when I check through device settings it says I have already the latest firmware?
Thanks in advance