Can i install a stock rom of G800M on G800F?

[AC Question]

That's all, can i? or i will brick my phone?

 

[the tall guy]

Most phones can be rooted, including yours. If you do something wrong during the root process you will brick the device. Watch a few youtube videos on how to, see if that helps. AC also has a really good root section - Rooting your Android | Android Central