It's a Hp Elitebook Folio 9470m. With 250Gb SSD and 8Gb RAM (upgraded), i7, Windows 10 (Upgraded from 8).
It was sent to service at HP for heating and broken ethernet port. As it came back, we found the ethernet is still not working and the problem was that the only account on it was a guest account. So we had to reset the Windows 10 from sign screen (Sign in Screen>Shift+Power>Restart>troubleshoot>Reset this pc). After that it gave the administrative account and the ethernet also worked finally but in 5 minutes, a BSOD happened (Critical process died). And since then the laptop is giving the infamous HP error -
Boot Device not found
Hard disk error (3F0)
Please install an OS on your harddisk.
Press F2 for System Diagnosis.
A quick check showed the RAMs are good. But the hdd check showed not smart tool installed. (Well obviously it can't find the hdd at the first place).
Tried changing the UEFI mode to Legacy as advised in numerous sources online, and also tried UEFI Hybrid and UEFI Native but no progress. Can't open and replug the ssd as we don't have the necessary equipments to do that right now. Also can't reset the BIOS to defaults because Hp's instruction is not matching with their own BIOS. Their instructions are according to the old BIOS (Blue/White screen, arrows, Function keys and Enter), Now we are seeing what seems like an updated BIOS version (Clickable!) So can't find restore BIOS option. There is a "Restore to Default" option, but I'm afraid to use it because I don't want the laptop to go back to Windows 8 as it came primarily.
What to do?
It was sent to service at HP for heating and broken ethernet port. As it came back, we found the ethernet is still not working and the problem was that the only account on it was a guest account. So we had to reset the Windows 10 from sign screen (Sign in Screen>Shift+Power>Restart>troubleshoot>Reset this pc). After that it gave the administrative account and the ethernet also worked finally but in 5 minutes, a BSOD happened (Critical process died). And since then the laptop is giving the infamous HP error -
Boot Device not found
Hard disk error (3F0)
Please install an OS on your harddisk.
Press F2 for System Diagnosis.
A quick check showed the RAMs are good. But the hdd check showed not smart tool installed. (Well obviously it can't find the hdd at the first place).
Tried changing the UEFI mode to Legacy as advised in numerous sources online, and also tried UEFI Hybrid and UEFI Native but no progress. Can't open and replug the ssd as we don't have the necessary equipments to do that right now. Also can't reset the BIOS to defaults because Hp's instruction is not matching with their own BIOS. Their instructions are according to the old BIOS (Blue/White screen, arrows, Function keys and Enter), Now we are seeing what seems like an updated BIOS version (Clickable!) So can't find restore BIOS option. There is a "Restore to Default" option, but I'm afraid to use it because I don't want the laptop to go back to Windows 8 as it came primarily.
What to do?