Thinkpad T540p with problematic touchpad. 75% of the time it would only provide right click action (from both left and right clicks). Keypad had some issues with keys not working properly on rare occasion. Originally this laptop had the fingerprint reader. The replacement parts came from a T540p with broken screen that has been stripped for parts. Parts have not been tested. Installed the keypad and touchpad replacements, and they keypad works great! The trackpoint doesn't work at all, and neither does the touchpad. Everything is still enabled in the BIOS. I have removed the device for the synaptics touchpad and scan for new hardware, but nothing is ever detected.
What was the issue with the original parts? Why did you replace the keyboard and touch pad)??