I just bought on eBay an Mi10 Ultra, the top one with 16 GB RAM and 512 GB ROM. It was on a MIUI 13 weekly ROM. On receipt I immediately turned it on into fastboot mode and flashed the latest MIUI 13 stable ROM. When checking in My Device I saw a small vertical line of dead pixels on the middle lower left running from the CPU info to the Android Version (photo attached). The seller had the phone in Dark Mode and you cannot see the dead pixels. But he said that they were not there when he was using the phone and tried to blame it on the stable ROM flashing, which I think is nonsense? Any comments/advice appreciated, I reset the phone to see if that did anything, but no. This top model is very difficult to find in the UK so I will keep it (and for £400 was reasonably priced), but those pesky pixels are annoying. I just switched to Dark Mode and so can't see them.