lost license?

Hello ,
I’m trying to upgrade mt RB133 to V5.18 using netinstall.
but when I enter the device it’s said that I don’t have software key?

it’s work until I have upgrade him

What do I need to do?
Capture.PNG

Don’t do that, unless you want to run into such issues.

  1. Best solution is not to downgrade
  2. Second best solution is to use “/system package downgrade” command for downgrade

sorry,
but I don’t understand what you want me to do.
do downgrade or not?
what good will it bring me ?
I have try to downgrade to v5.7 and still got the same problem
Capture.PNG