Samsung Galaxy A54 Screen Flickering or Green Line? Causes & Fix

A flickering Samsung Galaxy A54 screen can be software, but a green line or flicker that started after a drop means the AMOLED panel is damaged and needs replacing — from £11.56. The green-line fault in particular is a classic sign of physical panel damage. Here's how to confirm it.

Software or hardware? Quick test

1. Install the latest update — some flicker is fixed in software.
2. Turn off Adaptive brightness and test a fixed brightness.
3. Boot into Safe Mode — if flicker stops, an app is to blame.
4. Note when it started — after a drop or with a visible line means the panel.

What the symptom tells you

Direct answer: a green line is almost always physical damage inside the bonded AMOLED panel — it can't be fixed by software or new glass, so the display assembly is swapped.

Fixing it: the right A54 screen

Replace with a budget A54 incell screen (£11.56) or, to keep the in-display fingerprint, an A54 OLED screen (£22.58). Compare them in our A54 LCD vs OLED guide.

Why buy your screen from Supreme Phone Parts?

• UK stock, dispatched from the UK — no long overseas waits.
• eBay Top Rated seller — trusted by UK repairers and repair shops.
• Trade & bulk pricing available for repair businesses.

Frequently asked questions

Why does my Galaxy A54 have a green line on the screen?

A green line means the AMOLED panel is physically damaged, usually after a drop or pressure. It's fixed by replacing the display assembly.

Is A54 screen flickering software or hardware?

Both are possible. If flicker stops in Safe Mode or after an update, it's software. If it began after a drop or comes with a line, it's the panel.

How much to fix a flickering A54 screen?

From £11.56 for a replacement screen; a repair shop adds labour.