I cannot get my AK90 to work. I installed the software on several laptops with Windows XP 32-bit, Vista 64-bit, Windows 7 64-bit, Windows 8 64-bit, and Windows 10 64-bit. I installed the software with the AK90 plugged in and installed the Silicon Labs software. I can read keys. However, I keep getting the Pin No Touch Error. I sanded down the contacts on the chip on the EWS. I also tried using 2 different EWS modules. I tried a different USB cable. Nothing seems to be working. I have tried putting the connector on all four positions with lots of pressure, but I cannot get the AK90 to communicate with the EWS. I ordered another AK90 as I am beginning to think that mine is defective. Has anyone had any luck with their AK90?