telnet command

[skyline629]

Gain telnet access.
Type cd n/s press enter.
Type allow_config true press enter.
Then type write press enter.
cd /
reset
This should put you into factory mode on the sb5100. Once you're done injecting your certs follow the steps above again but this time instead type allow_config false to get out of factory mode. I have been successful at getting my 5100 back online. It's a tedious process.

Thanks NutZ, I'll give it a try.