Hi!

Fuj siemens C1320D, came with no display on internal LCD, but displays on external.

After changing inverter, Lap always defaults POST screen display to the external monitor.
I always need to push Fn/F10, to change display to the internal, which is not practical.

Changing bios boot option to "auto" then to "internal LCd", did not help.

Any suggestion whether it's likely to be a hard or soft issue (bios to be updated...) and which steps to be taken consequently to solve problem?

So have you updated the bios ?

Not yet, did you happen to solve a similar issue with bios update ?

I asked the customer whether he accepts to use fn-f10 for internal display or not, so as to avoid him extra-charges and I'm waiting for his final decision.

I have solved a ton of problems with bios update.
The very first step of repairing process is updating a bios.
Sometimes hardly connected issues is cured by that.
So do not avoid this first and absolutely necessary thing.