Engineering is currently investigating an issue in which a BIOS upgrade done on SSL Visibility software build 4.5.x takes an extra ordinary amount of time. We have had an instance where a customer waited 3 hours for a BIOS upgrade to happen and it did not complete and failed.
Release : 18.104.22.168
Component : Hardware
Bug id SVF-8260 has been opened by Engineering to track this issue to resolve.
This is currently under investigation by Engineering. As a work around customer is advised that the BIOS update be performed under SSLV 4.4.x. After the update if performed, the device can be updated to SSLV 4.5.