Hi
Need some urgent help to revive 4 RB711.
Long story short.
We use ROS 3.30 on most of our MT gear.
And when I got my RB711s I connected them to my PoE switch and started downgrading to ROS 3.30
Don`t know what stopped me, but when I got to number 5, I tried to log on to the firs one again, and disaster…
None of the 4 downgraded units responded.
Tried to use netboot, but no luck (thought it might boot from netboot when NAND failed).
There is no serial connector!
What do I do?
I need these units, so hope someone can help me quick 