NimbostratusHi!
From what I can read from your question, you have problems activating them?
The license activation process can be a pain in the a**, and takes several minutes unless you have dns configured and allow the F5 to contact F5's public activation servers.
Jie has come up with a good work around in this thread:
https://devcentral.f5.com/questions/activating-license
Basically login to the console (SSH) and the the WebUI at the same time, activate the licence in the WebUI, as usual and the issue this command over the console:
killall find-activate.pl
The default user and password for console access is "root" and "default".
After that you'll want to give the new device the same hostname as the old one and apply a backup from the old one.
/Patrik