Chosen Solution
Very difficult to find information about this, so I wonder if anyone here has experience repairing their own laptops or could point me in the right direction. The touchscreen only works intermittently. When it doesn’t work it usually disables the keyboard and trackpad ( I suspect some pin or circuit somewhere is not getting the right voltage, and that is causing the OS to put it into tablet mode[thus disabling the keyboard and touchpad]). I’ve got the touchpad and keyboard working consistently by disabling the touchscreen drivers. I don’t really want to replace the whole touchscreen if I can avoid it because it could just happen all over again with a new touchscreen. It also doesn’t look like HP will sell me a replacement, so I’ll have to get one from overseas (eBay, etc). I’m quite happy to open up the display and replace parts if I have to. If anyone has any experience about where the problem is (display cable, control board, etc) and whether it can be fixed without replacing the whole display, would be a great help.
Hi @debu_chocobo, You may have to open it up to find the motherboard’s make and model number number. (printed on the motherboard itself). Here’s the maintenance and service guide for the laptop, taken from this webpage. Go to p.55 to view the necessary pre-requisite steps and then the procedure to remove the systemboard. You don’t have to remove it! This is just to get access to it so that you can find the motherboard’s make and model number. Once you have the make and model number search online for (insert make and model number) schematics to hopefully find them. (Quanta Y0DE (Y0DD) board perhaps??) I could only find a Spectre X360 boardview file which may not be the one for your model anyway (this was without knowing the motherboard’s make and model number as I couldn’t find that out online). Also a boardview file (.brd file) is not a schematic. It is what it says, a view of the component layout on the board. Handy if a component is missing, damaged etc to know what it was and its value Looking at the service guide, the touchscreen is not a separately replaceable component as it is integrated with the LCD panel into the one display assembly. Even the touchscreen control wires are in with the video wires in the same cable and not in a separate cable. Finding the schematics would be a great help as without them it is guesswork (for me anyway) as to where the touchscreen circuit leaves the video cable connector on the motherboard to get to the controller (it may already be in with the touchscreen, I don’t know) and then to the IO interface chip (Input/Output) on the motherboard. As a further bit of information, as you most probably already have noted there are a lot of different display assemblies that can be used for the model. If it is determined that the touchscreen itself is the problem (maybe if the controller is there and not on the motherboard) then search online using the appropriate part number for your particular model only, to find suppliers of the display assembly. Usually the part number can be found on the back of the panel if you wish to verify which one you have. Hopefully a start. Update (06/07/2021) @debu_chocobo Can’t see it to well in the image you posted but what is printed along the edge of the board below the blue SSD?
(click on image to enlarge for better viewing) This is the first time you mentioned a broken hinge. Was the laptop dropped or mishandled to cause this or did it come this way? You said there was a refurbished sticker in the laptop which usually means used but good as new. Was there a date on the sticker or were you advised that it was a refurbished model? Did you check the video cable for damage where it passes through the other hinge?
