I just had the flickering issue (don't know about ghost clicks, I didn't test much).
I fixed it by disassembling it a bit and reassembling. At first I just removed the bracket over the display cable, and reattached it. But it didn't help then.
Second time I also loosened the bracket over the earpiece speaker, adjusted it a bit, fastened the bracket and massaged the ribbon cables around it gently. Then I reattached the ribbon cables and reassembled again, and the display was fine. For now at least. It does seem the light sensor doesn't work, but I haven't tried fixing it yet.
The pink tape that came with the new display, I removed it the first time and never reattached it. I don't think it's supposed to be there.
I did not disconnect the battery.