Basically the region and/or the cell provider. There's a list somewhere on XDA that goes over each model.
as above
looking at getting a Samsung Galaxy S5 and have noticed that they are not the same models. ie. G900I, G900F etc. could anyone explain the difference please. i am in Australia by the way. thanks
The official australian version is G900I since G900F doesn't support some of the LTE frequencies (700Mhz and 2300Mhz).
May I know how can I flash SM-900F firmware on an SM0900I Galaxy S5 as the Australian SM-900I firmware has some limitations?
as above
looking at getting a Samsung Galaxy S5 and have noticed that they are not the same models. ie. G900I, G900F etc. could anyone explain the difference please. i am in Australia by the way. thanks