Yes, thank you, under Passphrase Frequency, set to :: Always; and Method set to:: Manual. But no other indications of a passphrase from there, ie no keyboard screen on device to enter the passphrase. Maybe a firmware upgrade needed?
I don't think it's a firmware issue, but you can try if you want to. Especially if you are using a really outdated firmware. I am not on the latest one and the passphrase feature works just fine.
Are you trying to add a passphrase to an already existing wallet or generate a new seed with a passphrase?
For the former, you'll have to initiate an advanced setup and enter the passphrase once prompted by the device.
I am not sure how Jade does it if the wallet already holds a seed.
How did you set up your wallet, basic or advanced setup? Is there always a seed in its memory or are you using the Jade as stateless signer by scanning SeedQRs before every use?