My MECER xpression notebook laptop is showing a bios password and it doesn't allow me to press

It sounds like your MECER xpression notebook laptop is displaying a BIOS password prompt and you are unable to enter anything after entering the wrong password three times. You can try the following steps to resolve the issue:

1. Try to remember the password you previously set for the BIOS. If you are unable to remember it, you may need to reset the BIOS password.
2. To reset the BIOS password, you can try removing the CMOS battery from your laptop's motherboard for a few minutes and then reinserting it. This will reset the BIOS settings to their default values and remove any passwords.
3. If removing the CMOS battery does not work, you can try using a BIOS password reset tool or contacting the manufacturer for assistance.