Where can I find firmware and configuration files of digitizer?

Previous user of my tablet tried to upgrade the firmware of the digitizer (MXT1386-U). Unfortunately he installed firmware and configuration of MXT 1664 and the touch screen stopped working. The device is still visible by OS and I am able to install firmware but i can’t find the files anywhere.

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0


crwdns2889612:0crwdne2889612:0 0