What Was the WORST Android Thing That Happened in 2015?

We discussed the nice, now let's talk the naughty. This year saw some of the biggest disappointments in both hardware and software — faulty processors, failed flagships, root complications, missed software potential, security vulnerabilities and many things that gave us a lot to complain about. What was the WORST thing to happen in the Android world this year?

source: xdadevelopers