Samsung Galaxy S21 Series Users Report Green Line Display Issue

Some Samsung Galaxy S21 series owners are encountering a bothersome issue - a green line running vertically down their phone's screen. This problem seems to be affecting Galaxy S21 Ultra and Galaxy S21 FE users more frequently. Let's delve into what this green line issue is, how it impacts users, and what might be causing it.

As the name suggests, the green line issue manifests as a persistent green line stretching from the top to the bottom of the display on affected Galaxy S21 devices.

Samsung Galaxy S21 Series Green Line Issue

Multiple users have reported on online forums like X and Reddit that this green line appeared abruptly on their phones, often following a recent software update. Notably, a Galaxy S21 Ultra user claimed the green lines emerged after installing the April security update. While the functionality of the phone seems unaffected, the green line can be quite an eyesore.

Samsung hasn't officially commented on this issue yet, so the exact cause remains unclear. However, let's explore some possibilities.

This problem isn't exclusive to Samsung phones; other brands have faced similar green line issues on their devices. While the appearance often coincides with a software update, it likely isn't entirely a software bug (which would be a simpler fix).

The culprit is suspected to be a hardware defect. AMOLED displays rely on delicate flex cables that connect the motherboard to the screen. These cables can become loose, damaged, or defective due to various factors. On older phones, heat generated by demanding tasks or environmental factors could loosen the flex cable. The cables themselves might also be faulty from the manufacturing process.

Unfortunately, resolving this issue might require a display replacement, or in some cases, even a motherboard replacement. However, it's crucial to contact Samsung customer support first. Provide them with pictures and any documentation that verifies the issue. Remember, the cause and solution may vary depending on your specific phone model and situation.