Lines on display with every security update

[Dpk_og]

Why I'm getting 1 line after every security update in galaxy s21 fe.. i got 3 till now since November.. 

[Dpk_og]

I've already visited service center and tried everything which i can do.. at the end they told for payment for replacement..

[goodthings]

Your's most welcome to here.

[RajathSR]

I haven't updated my S21 FE since Jan for this very reason
before,I used to update almost instantly whenever I got the update
now I wait for 3-4 months whenever they release the update .
and only then I'll be updating

[pintus21fe]

After the update on my phone on 3 March 2025, a white line appeared and after 3-4 hours another line appeared what is going on with s21 fe 🫥

[drNavee]

It's better to ignore these updates and stay safe..too risky