Swapped SSD into new laptop - boot device not found

I have moved the SSD drive from my old hp probook 6460b laptop into my new hp probook 450 g5.

The ssd boots fine in the old laptop.

In the new laptop I get the error - boot device not found - 3F0.

I am able to run diagnostics on the ssd.

Why will it not boot in the new laptop?

I have disabled secureboot on the new laptop but still nothing. Any ideas?
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roy_battyDirectorAuthor Commented:
I just need to enable legacy booting. Obvious really.
JohnBusiness Consultant (Owner)Commented:
Likely different UEFI BIOS and the settings will not be the same.

Assuming the Windows OS on the SSD is OEM, you cannot do this anyway.
NorieVBA ExpertCommented:
Have you tried resetting the BIOS?
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Disabling secure boot is not enough, the new HP laptop has to fall back on the old BIOS method (if available, on Asus it's called CSM)
Agree with Kimputer. The bios settings of your new device need to be adjusted so that non-uefi booting is supported. Might be called CSM on HP machines, too.
is the ssd the first  device in boot priority? set it that way
roy_battyDirectorAuthor Commented:
Mine was the most accurate description of the solution
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