I have the, Samsung allshare Cast dongle and it does have some issues with connectivity and sound.

[dzmorgan]

I have tried calling into Samsung for help but was redirected back and forth to different departments. It was very frustrating and they were absolutely NO HELP WHAT SO EVER!!! There is an update to the firmware all I'm trying to do it updated it but the dongle is giving an error message and will not complete. The version that the dongle is NB 17 I would like to update the firmware. Is anyone able to help me with this ???

 

[Rukbat]

Probably not, since it doesn't appear that Allshare throws numbered errors, so looking up the error is a matter of typing it into a search engine and reading any hit that seems appropriate. Things like "unable to download" or "unable to update" - if you do find any sites mentioning the error - would be useless, because those messages are about as helpful as "there's been an error". (An error without a solution should never be shown to the user of any software or firmware. It's sloppy, careless programming, at best.)
As for "Samsung tech support", that's not a department, it's a joke - there isn't one for most problems. If it's under warranty they replace it (and if it's a phone, it might be with one that's been water damaged), but if it's "can't update the firmware", they have less of a clue than you have. (The problem could be as simple as a "hardwired" IP address for updating burned into the device - and if it's changed, it means "no more updates".)