3F0 Error: What is “boot device not found”?
Have you run into a Hard Disk 3F0 error on your HP laptop or desktop PC? When you try to power on your computer and you get this error message, it may seem vague and incomprehensible to you. That’s because it is vague and incomprehensible.
But in a nutshell, what it means is that your computer can’t talk to your hard drive. This is the part of your computer that contains your operating system, all of your apps and programs, and your files. So without it, your computer is just a giant brick.
A Hard Disk 3F0 error is a common boot error seen on HP models. In addition to this error code, you’re told that your computer can’t find a boot device. There’s an alphabet soup of different hard disk error codes like 3F0, and they all have slightly different meanings. Generally, hard disk boot errors can be caused by a whole host of issues, from things as simple as having an incorrect BIOS boot sequence or the hard drive not properly being plugged in to boot sector viruses or a corrupted hard disk partition.
Sometimes these boot errors occur because your hard drive has broken down and no longer works. Check to make sure your hard drive is the primary boot device in BIOS and that the cables connecting it to the motherboard are tight and secure. This could fix the issue.