How to replace a faulty panel on this laptop?

Hi @pan64870

It could also be a faulty eDP cable (fractured in the hinge perhaps)

Here's the hardware maintenance manual for the laptop.

Go to p.73 to view the procedure to remove/replace the LCD panel (complete module includes the touchscreen)

Go to p.93 Item #2 to find the part number (FRU number) for all the panels compatible with the model. Note: A "T" in the name description for the panel indicates it is a touchscreen i.e. FHDT= Full High Definition Touchscreen, FHD = Full High Definition.

Search online using the part number only applicable to your laptop, to find suppliers that suit you best.

The eDP cable is Item #4.

Usually the part number is on the back of the panel if you wish to confirm that you're getting the correct one (also on the eDP cable somewhere as well)