Passcode less than 9 digits not accepted
Hi, I don't remember when it started but my iPhone X (iOS 14.4) doesn't accept the passcode which is less than 9 digits. Everytime I tried to change to a new passcode with 6 - 8 digits it says "This passcode can be easily guessed".
Any idea how I can go back to 6-digit passcode on my phone? 9 digits are too long and hard to remember.
Cheers,
iPhone X