A Software Bug Had To Trigger The Cutoff Switches, In AI 171 Boeing 787-8!

The 787-8 has been operational for 13 years, and similar switches are installed in most Boeing airplanes, and even Airbus, the only difference is within the software, and the 787-8 recently received a software update to the 787-8 radio's, which didn't work, and the auto-throttle on landing, that's were I think this software bug is, hiding!