i updated my bios and now i getting 3f0 error

[Divi101]

hey everyone..

I updated my bios from hp official site but then i started getting Error messages "operating sustem not found. Please install system on your hard drive (3F0). Press F2 for diagnosis.. But when i pressed f2 nothing happened.. I m getting blank screen after pressing f2. I m not sure whats the problem.. I am really frustrated now.. Please help.. 

[Lil_Boy_Blue]

Hi
First:- Turn off the computer, press and hold the PWR button for 4 seconds.

Then - Leave only keyboard and mouse connected, disconnect all externally connected
devices such as Docking Station, USB storage devices, displays, and printers.
Unplug the AC adapter from the computer.

Next - Press and Hold the Power button for 15 seconds to Hard Reset.
Rinse and Repeat

Power on your PC, press Esc (repeatedly), then F2 at the prompt.
Choose System Tests (Fast Test does a 4 minute hardware check).

3F0 would suggest a failed Hard Disk.

[Divi101]

i have tried that.. Not working.. 

[Lil_Boy_Blue]

Hi
Hopefully one of these documents will cover (and solve) your problem...

https://support.hp.com/ca-en/document/c00042629

https://support.hp.com/us-en/document/c02693833

Turn off the computer, and then connect the power cord.
Press and hold the Windows key and the B key at the same time, and then press and hold the power button for 2 to 3 seconds.
Release the Power button but continue pressing the Windows and B keys. You might hear a series of beeps.
The HP BIOS Update screen displays and the recovery begins automatically. Follow any on-screen prompts to continue the startup to complete the recovery.
HP BIOS Update recovery in progress

If the HP BIOS Update screen does not display, repeat the previous steps but press the Windows key and the V key. If the screen still does not display, your computer might not support the feature or there is a hard drive issue. Continue to the next step to install a BIOS recovery file from the HP website.
If the Power light turns off, the Power button was held too long. Repeat the previous steps, making sure to hold the button for only 2 to 3 seconds.

[Divi101]

i have tried this too but it didn't work.. the bios got recovered but my laptop is still the same.. same error and f2 not working.. is it possible that this is a matherboard issue.. one of my friends were saying that.. 

[Lil_Boy_Blue]

Hi

It certainly could be.

https://support.hp.com/us-en/product/hp-240-g4-notebook-pc/7609932/advisories

There is only a Battery Recall out for your model, nothing to do with BIOS problems that i can see.