I just DL version that was on switch from factory because I already have SSH, summitX-15.3.1.4-patch1-19.xos and it seems to work good for us so far.
I followed your instructions and so far it is WORKING LIKE A CHAMP, formatting partitions / etc. ...
Thank you for the help, I've trolled around and viewed the folllowing:
https://community.extremenetworks.com/extreme/topics/how_do_you_reset_a_summit_x005F_x450a_24t_to_factory_...
I am DL 15.3.4.6 now to upgrade XOS
I'm in the same boat as Jason, the other night I changed password for admin and typed ENCRYPTION, as this is what I would have done with a Cisco. Big Mistake, now I cannot login, as I deleted user account and did not setup failsafe.
I also typed EN...