remember these players are made by the bucket load for a quick sale only, that is all and one of the general functions of the rockchip player is "firmware updates" so yes, the player can do updates but there are none to do it with
thje 747 was a good player but ingenics and chinachip solution that they used is dead now as is the support for that player, its quite old now for a cjhinese pmp
i would have alook at what is available, there are better player
fancy a 5" screen player
but the onda vx777le is better, but it depends what you want it for mainly audio or video
and do not update the firmware and then try to send it back or they will refuse you, especially if you have contacted them already they will know and refuse
just send it back if you want something more supported and modable