microlog.txt

Redmi4pro, Rom Dev eu 6.12.29 A file called microlog.txt often appear in the internal sdcard every day. /storage/emulated/0/microlog.txt I wonder what it is and where it comes from? How to turn it off? I found one thread related here ' http://www.miui.com/thread-7021674-1-1.html ' but it is in...