Originally Posted by PJ@y-Z
How is it possible?
I had the same phone (still have it by the way), purchased to a Hong Kong based seller (eGlobal). This is a chinese S5 (g9006v), and they managed to "rebrand" it as a g900f, with a frankenstein firmware (some partitions are from the g9006v, others from the g900f). It kind of works as it is, but it is impossible to root.
I installed Lidroid 1.2, a stock based rooted rom, it works very well. It is kitkat, but i don't like lollipop anyway.