Sony Computers

Sony logo original

For Sony computers, master password can be calculated using the 7-digit of your computer's serial number. All serial numbers are composed of 15 digits. These digits are split up in a group of 8-digit number and a 7-digit number. The serial number is normally located on a sticker on the back of your notebook or desktop, or in your documentation.

Here are some examples of Sony stickers with the 7-digit serial number highlighted:

vaio sticker

* The Serial Number above has 7-digits after the first 8-digit number group.

vaio serial codes

* The sticker above shows the 15-digit combination of the Product Code and the Serial Number. Group A with 8 digits is the Product Code and Group B with 7 digits is the Serial Number.

In other older or newer models, the password hash or "disable code" is composed of 10 alphanumeric characters like CNU1234ABC.

Get your BIOS password below
Required Information
Enter the full 15-digit code as shown in the sticker. You can also enter the last 7-digit serial number in the sticker. If your sticker is different from the images above, consider attaching a picture of your sticker in using the upload button below.
Enter a valid e-mail address that you have access to. We will send the master password and all unlocking procedures in this email address. We will also contact you should you face problems unlocking the BIOS or HDD password. A valid email address is in the form
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