They all have a cache, it's were they store items like the menu graphics and music, etc. The cache shouldn't be an issue and would be unaffected by the Firmware.

Models with network (ie: internet) connectivity also use that connectivity to update the player firmware and security features. This may or may not be what you are reversing by reinstalling the default firmware.

The non network connected player is likely dirty or failing.

 

How long do blu ray players usauly last. the older nonnetwork model i think was bought in 2008. if it is dirty how do i clean it. and is it possable to restore a nonnetwork player back to factory settings?
Heres another link i was looking at: Fix Blu Ray Freezing Issues - Volume And Static
they mentioned Electro-static but the thing is i only have a rug not a carpet and i do store my blu rays in thier original cases. i was however doing alot of scanning on the bonus features of the blu ray disc, i was trying to spot something. i have to assume if you do alot of pausing or leave it on pause for too long or too much scanning will that also cause it to freeze?

 

Longevity varies by brand/model. It could range from several years to a decade or more. It's also affected by the amount of use, quality of power, and location (ie: heat). Being as yours is 7+ years old now, I'd say you got your moneys worth.

Any player can have the firmware updated. Typical update options are network, USB, or via disc.

Most setup menus have the option to "restore factory default" settings, but all that does is change all of the config options back to how it shipped, and the configuration isn't likely causing a playback issue.

Any type of usage shouldn't cause playback issues. Playback issues are typically the result of a dirty/scratched disc or a player fault.

 

well i did play that same disc in the other newer player played fine. no freeze ups. and i played another disc on the older one that froze, it didnt freeze on that one.