just disassembled it with (torx?) screwdriver
the glass surface was lousy
I saw how glass goes to panel
after put the glass surface back - it works!
NO more er22!
a folk like youtube https://www.youtube.com/watch?v=ndQU7RtqfRw (videoid ndQU7RtqfRw) shows things how these works
other videos too. not affiliated.
forumperson
August 2017