screen failure on 24-inch-iMac, M1, 2021
Bought this device on Dec 2021, and today the screen shows many horizontal lines at the bottom of the screen and this is also a grey area showed up, which also blinks at a frequency ~2-5 seconds. This is very annoying and makes it unusable. Since I had many devices, e.g 2018 MacBook Pro 15, 2022 M2 MacBook Air, 2022 M2 Mac Mini, so did not use iMac like 7(days/week)*24(hours/day). There are many reports on this issues which can be found on iFixit and Youtube. I think it's a manufacturing or design issue, or just bad parts causing this problem. Had old iMac being used for >10 years and had no issues. Also other displays (Aoc, Dell, LG, Samsung) I have used (1-8 years) never had this kind of issues. Apple should investigate why this occurred and repair the faulty parts.
iMac 24″, macOS 14.4