Swap the drives from working to non-working. If they are identical it will work. If there is a hardware failure it won't. As to repair, these are beyond the time where shops and HP will offer repair.
I see these for about $150 on Groupon and Amazon. Here the minimum counter fee is 150 which gets you a full replacement on the web.
My first post. I hope this is in the right section.
I have a new (2nd hand) HP Elitebook 8440p. It has a very dim display. When I cycle through the 0%, 25%, 50 % etc. brightness setting, it makes little difference. It is brighter on 100% and dimmer on 0%, but the intermediate options do nothing.
I already have another 8440p and I can tell that the full brightness on this new one is closer to 50% on the old one.
I have tried the following:
Updated all the drivers
Uninstalled and reinstalled the drivers
Tried tweaking display settings as recommended online (although some of those settings don't appear on this laptop)
I have removed the screen from the good laptop and installed it on the new machine
I have switched all the display cables /connectors from the good latop to the new machine.
The older machine still works fine, with the hardware from the new machine, but I still have the same problem with a dull display on the new machine.
Also the dim screen seems to have a slightly blue / purple tinge to it.
Is there some other hardware or software option that I have missed? It's really baffling me!
Any advice would be appreciated as I am out of ideas and as I have bad eyesight, I'm unable to use this machine at the minute.