From Newsgroup: misc.phone.mobile.iphone
Commands to get you up to date...
Check secure boot status:
sudo mokutil --sb-state
Check status of secure boot authorized signature database (DB) and key enrollment key database (KEK):
sudo mokutil --db
sudo mokutil --kek
Firmware Update daemon commands:
Refresh metadata:
sudo fwupdmgr refresh
Check available updates:
sudo fwupdmgr get-updates
Get updates:
sudo fwupdmgr update
https://www.youtube.com/watch?v=_AwzaZmRNsI
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