I've been using the same password on my MacBook all summer without any issues, but it suddenly started saying the password is incorrect. I entered it slowly several times, tried a couple of possible variations, and now I'm locked out for about an hour. Restarting the Mac and trying Command-R didn't help. The Mac uses Apple silicon, and I have a Czech keyboard layout enabled, so I'm wondering whether the layout is changing the characters I'm entering or affecting recovery options. What should I try next?
1 Answer
First, verify what the Mac is actually receiving from the keyboard. If possible, type the password into a visible username or text field and compare every character, paying special attention to Czech-specific characters, symbols, capitalization, and the keyboard layout. A wired external keyboard can also help rule out a hardware or layout problem. On an Apple-silicon Mac, recovery is entered by shutting it down completely and holding the power button until the startup options appear, rather than relying on Command-R. If the password is definitely correct but still rejected, check whether the account password may have been changed and confirm that you can access the Apple Account associated with the Mac.

Related Questions
Can't Load PhpMyadmin On After Server Update
Redirect www to non-www in Apache Conf
How To Check If Your SSL Cert Is SHA 1
Windows TrackPad Gestures