I have an issue with touch screen for my IFP8650-3 modele.
I think to factory reset and looking for touch screen driver too.
I'm looking for Step by step how to do it!
You can call up Debug Menu by pressing “INPUT 991” key on the remote controller and select "Init TV" to reset system.
I try it, but system missed touchscreen driver. And no place to find this driver only.
I'm not sure what you mean by a missed touchscreen driver, but IFP's touch does not require a separate driver, so if your current touch is not working, it may be a problem with the touch frame and you will need to call a service technician to help resolve it.