Hello pollywannafly-
From your original post sounds like this is a brand new Anafi that has never been flown, if so when and who did you purchase from?
Have you reached out to seller to check on return or exchange policy period? I would suggest a return or exchange as you're entitled to a working drone
If that is not possible you may want to reach out to Parrot Support at Parrot - get a support ticket generated should be covered under their warranty
What model iphone and ios version are you using?
With drone off and at iphone home screen connect phone to SC3 and then open lid on controller -
Does FF6 prompt you to allow communications to skycontroller and then automatically open FF6?
At FF6 home screen at top of page is controller icon green?
When you tap controller icon what software version is shown?
Does it show and options for connect, calibration, reset, and update or are they greyed out?
When you tap calibration does it take you to calibration screen and allow you to calibrate? ( this would be step 4 in your response above)
Are you able to run software update after calibration and what happens if you do?
I wish you the best of luck and understand how frustrating this can be
