Recall or free repair? Apple M1 iMac users complain about screen errors, but claim Apple refuses to take responsibility

An increasing number of Apple users have shared a worrying issue with their M1 iMac devices. Owners of the all-in-one device have complained about phantom horizontal lines appearing on their screens. The first reports of the problem date back to mid-2023, and Apple has yet to acknowledge the problem. What’s worse is that the apparent design flaw often becomes apparent after two years of use, meaning most affected devices are already out of warranty.

A long (17 pages) discussion thread about Apple community forums is full of user reports about this iMac’s display error. Many users reported contacting Apple service centers only to be told they would have to replace the screens entirely – not a desirable thought considering they cost between $600 and $700, a price that could buy you a brand new Mac mini.

This image comes from Apple Community forum user leo.simon and shows the issue with horizontal lines across the screen. (Image credit: leo.simon/Apple Community)

One user, unhappy with the diagnosis, took his iMac to an independent repair shop. The technician discovered that the problem stems from the flex cable used in the displays. At maximum screen brightness, the cable must be able to carry a maximum of 50 volts, and over time this causes the connector to burn out, which in turn leads to a short circuit in the circuit and the appearance of horizontal lines.

The blame game