Green Line Issue After July Security Patch Update

[sripraveen]

Hi @sumsungsupport, @Samsungmember

I received the July 2025 security patch update on my device early yesterday. After installing the update, I noticed a green line appearing on my screen. This issue started immediately after the update and was not present before.

Has anyone else experienced this after the latest update? Is there any official acknowledgment or fix from Samsung?

Device Model: Galaxy S21FE exynos

Please help or advise

[Arun_S_]

The white line issue on my S21 FE began after the May 30 update. This problem isn’t limited to the S21 FE—it affects many Samsung-supplied AMOLED screens, possibly from a defective batch also sold to other brands, including Apple. A service center representative first informed me of this.

If you face this issue, escalate it promptly via email and the customer care helpline. Always keep a receipt from an authorized service center as proof for any escalation and as evidence that you reported the problem.