iPhone Passcode

Sorry, we are confused. Are you asking about a Software Update for the iPhone.......likely to iOS 15.5?

You would not be asked for a passcode if you have not set one up previously.

If you are being asked to enter a passcode, then you must have set up a passcode previously and you will need to enter the passcode to continue. You won't be able to bypass the passcode screen.

Your next question might be......"What if I have forgotten the passcode". If that is the case.......

If you forgot your iPhone passcode - Apple Support

If the phone is working without a passcode........then you did not set one up.

Would you like to set one up?

No, and that means that you DID create a passcode when setting up the phone. If you have forgotten it you must restore the phone to its “new phone” state and lose any content you haven’t backed up.

The steps given in this link will help you reset the passcode -> If you forgot the passcode for your iPhone, iPad, or iPod touch, or your ...