I flashed this BIOS, and when I turn on the laptop, the screen stays black, there are no beep sounds, and nothing happens. Only the power button, the WiFi button, and the mute button light up....

This is the content of the BIOS chip....

I need a working BIOS file for the HP ProBook 470 G3. When I power it on, the Caps Lock LED blinks twice long and then twice short. At the same time, I hear two long beeps followed by two short beeps, and this pattern keeps repeating.
Based on the blink and beep code, I believe the BIOS is corrupted. I’d appreciate any help with the correct BIOS recovery file.

HP ProBook 470 G3
CPU: Intel Core i3‑6100U
GPU: AMD Radeon R7 M340
Motherboard: DA0X63MB6H1 REV: H
Serial: 5CD5462RC2
Product: P4P66EA#BED​

Hello everyone!
I’m an electrical technician by profession, and I’ve been surrounded by computers and technology since childhood. My passion for tech grew naturally—through curiosity, hands-on exploration, and learning by doing. Most of my knowledge in computing, operating systems, and programming has come from self-study, personal projects, tutorials, and the occasional paid online course.

While I don't have much hands-on experience with electronic components yet, I’m genuinely interested in the field and eager to expand my knowledge. I especially enjoy fixing things...