S21 FE – Anyone facing green line or screen issues after One UI 7 update?

[jmn0009Ravan]

Hey everyone,

I’ve got the One UI 7 (Android 15) update on my Galaxy S21 FE, but I haven’t installed it yet. I’ve seen a few posts online where people said they got a green line on the screen after updating — sometimes after a few days, even without dropping the phone.

Just wanted to ask:

Has anyone here faced any screen problems after the update?

Like:

Green or pink line

Flickering

Color tint

Anything unusual on the display

If yes:

When did it happen?

Did restarting or clearing cache help?

Did you have to visit the service center? Was the fix free?

I just want to be sure before I update. Please share your experience — would really appreciate it 

Thanks!

Green line se pareshaan? Switch to the brand that cares.

#OnePlus: Lifetime green line warranty. #Samsung: Just lines, no warranty?

[_ritesh_]

Display successfully replaced. Green line issue resolved. Device is now stable and safe for future software updates.

[Vivian_1999]

Ok Thank you Bro.

[cs_member10]

Dear Samsung Member,

Greetings from Samsung Customer Support!

As per your concern, we would request you kindly visit the service centre and inspect your device with the technical team end, they will provide you with all the information in a better way after inspecting the device physically.

You can locate your nearest service centre with this given link: https://www.samsung.com/in/support/service-center/

Warm Regards,
Samsung Customer Support

[jmn0009Ravan]

Vo to theek se javab dene vale nahi hai kyu ki out of warranty hai or condition dekhenge bkl 3 saal mobile use kroge to naya ka naya thodi rahta hai

[JSPrasanth]

Dear Samsung Support Team,

I am writing to raise a complaint regarding my Samsung Galaxy S21 FE (Model: SM-G990E), which is currently facing two major issues:

 1. Display White Line Issue

After a recent software update (Firmware:G990EXXSEGYE1) waiting for install (Firmware: G990E0DMFGYF1), a white vertical line suddenly appeared on the display.

This line is always visible — even in Safe Mode and after a reboot. I confirmed it's not a software glitch, as the line does not appear in screenshots.

I believe this may be due to a display hardware issue, which has coincidentally appeared after the latest firmware update.

 2. Back Panel Loosening

Additionally, the back door of the phone became loose on its own. Due to urgency and safety concerns, I had to temporarily fix it using glue for emergency use.

This should not happen on a premium Samsung device, and I request your support in getting this inspected and resolved at an authorized service center.

Device Details:

Model: Samsung Galaxy S21 FE (SM-G990E)

Firmware Version: UPDATED G990EXXSEGYE1
Issue Observed Since: [13/06/2025]

Location: Coimbatore, Tamil Nadu  

Request:

Kindly register my complaint and provide a resolution, either out of warranty (if eligible) or with an affordable solution. Please advise me on the next steps for inspection and repair.

I have been a loyal Samsung user and expect a reliable solution for what appears to be a growing issue among S21 FE users.

Looking forward to your response

[jmn0009Ravan]

ये कुछ मदद नहीं करेंगे बनाया इन्होंने है और हमारे पैसा दिया है 50 हजार ओर दो साल में इसी दिक्कत आने लगे तो इससे तो अच्छा है किसी दूसरी ब्रांड का मोबाइल ले, OnePlus का काफी अच्छा है लाइफ टाइम फ्री डिस्पले सिर्फ OnePlus का मोबाइल है कर दो डिस्पले रिप्लेस, ओर ये लोग ओरिजनल बिल मांगेंगे और कंडीशन भी अच्छी होनी चाहिए कभी खुला नहीं होना चाहिए पैसा लूटने का धंधा बना दिया है @samsung वालो ने🤬🤬🤬

[JSPrasanth]

Most of the s21 fe user facing this issue but customers care side not responded properly

[jmn0009Ravan]

Yes My S20 had the screen blinking after update,
And that is why it should not be updated,
And next time only OnePlus 🔥🔥🔥