How to disable auto-update

So far, the Only reliable way to block the upgrade is page 5 of this thread (telnet method) - see link below.  IT seems a little overwhelming but its not bad.  Takes all but a few minutes.  Plus apply the same block to the extra parameter (orbi_auto_upg) - anything that looks like an upgrade parameter in the list.   And you have to be fast in doing this or the router will still auto-upgrade (to prevent this I recommend downloading everything u need first and then disconnecting your cable or DSL line while doing this so it doesnt auto-upgrade in the process.