Every time I boot my laptop (Lenovo Ideapad 3 15ALC6), it beeps 4 times (two times in quick succession, it then waits about a second and then beeps another two times in quick succession) but still boots up successfully. In fact, I am using it to write this question.
I bought this laptop less than three months ago. It was working fine up until today. It is running Windows 11.
If the laptop is still under warranty, I suggest that you ask for it to be replaced or at least to be fixed.
I understand that the beeps form the pattern of 2-2-2. According to the Troubleshooting POST/startup does not complete issues - Servers, this pattern may mean "Keyboard controller failed" on the System Board. You should also examine the screen while the beeps are issued, to see if any messages are issued (if the messages disappear too fast to read, film the screen with your phone during the boot).
The error might be different from my above interpretation, but it's sure that the problem is hardware. Try to disconnect any possible device and boot. If nothing changes, call Lenovo Support for this problem - it's not something you can analyze or fix.
i had the same issue, probably it happens when BIOS updating.
I did battery reset, holding power button for 20-40seconds, and problem is gone...
