You can try your passcode again in (null)

My iPhone says “This iPhone is in security lockout. You can try your passcode again in (null), or you can erase and reset this iPhone now”. What does You can try your passcode again in (null) mean? Do I have to erase my iPhone or can I have another chance to enter the passcode?

Yes, you have to erase your iPhone.

No, you don't have another chance to enter the passcode.

Explanation: When a developer writes code they need to set variables to allow dynamic content to display. The first failed passcode attempt gave the user a response that ...You can try your passcode again in 1 minute. As the user fails to enter the correct passcode, that time changes, but it is just an algorithm that change the variable to 1 minute, 10 minutes, 1 hour, 10 hours, etc... The point is that the algorithm ran out of values, probably by design, and it completely did not have any variable assign, so it default to (null) or the developer did intentionally set the value to (null). The better response to a complete lockout message should have not show the message You can try your passcode again in (null) at all, this way people, users, or humans can not misinterpreted the message that there is still a chance to unlock the phone without losing their data.