Samsung Galaxy A15 Screen Flickering or Lines? Causes & Fix

A flickering Samsung Galaxy A15 screen can be software, but coloured lines or flicker that started after a drop mean the AMOLED panel is damaged and needs replacing — from £26.77. The good news is you can usually tell which it is in a minute. Here's how.

Software or hardware? Quick test

1. Install the latest update (Settings > Software update) — some flicker is fixed in software.
2. Turn off Adaptive brightness and try a fixed brightness; flicker at low brightness can be a setting.
3. Boot into Safe Mode — if flicker stops, an app is the cause.
4. Note when it started — if it began after a drop or with visible lines, it's the panel.

What the symptom tells you

Direct answer: coloured lines and flicker that follows a drop are inside the bonded AMOLED panel — they can't be fixed by software or by replacing the glass alone, so the display assembly is swapped.

Fixing it: the right A15 screen

Replace with an A15 OLED screen with frame (from £26.77) or an original LCD assembly for 4G / 5G. To keep the in-display fingerprint working, choose OLED — see our A15 OLED vs LCD 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 A15 have lines on the screen?

Coloured vertical lines mean the AMOLED panel is physically damaged, usually after a drop or pressure. It's fixed by replacing the display assembly.

Is A15 screen flickering a hardware or software problem?

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 lines, it's the panel.

How much to fix a flickering A15 screen?

A replacement screen starts at £26.77 as a DIY part; a repair shop adds labour.