I just had this issue of flickering screen tonight. On a normal 30 minutes repair it took me 3 hours, and same problem, flickering. I was turn off device before I start, static protection etc.. Tested 4 screens, some flickers immediately some after a while. This is so frustrating, damaging my reputation and killing my time. I've looked at all your comments and some I still haven't test yet, bbl with results.