Hi there jignesh_1000,are all that players working?If it is,you shouldn't have to update or upgrade any of those cause' you'll end up having lots of dead players.
If you want to back up the firmwares of all that players you should see to it that what version of firmwares they uses like version
3.xx.xx &
9.xx.xx firmwares.
Actions chips like
ATJ208xx,
ATJ205xx uses version
3.xx.xx firmwares & Actions chips like
ATJ209xx,
ATJ7513,
ATJ7515 uses version
9.xx.xx firmwares.
In order to back up version
3.xx.xx firmwares use
s1fwx,and for version
9.xx.xx firmwares use
s1clone.
They can be found here,details and how to use:
http://www.s1mp3.de/