UK users often notice screen flickering on Samsung devices after sudden voltage fluctuations or power surges, especially in cities like London, Manchester, Birmingham, Glasgow, and Leeds. In my own test with a Galaxy S23 on EE in London during a brief power surge, the screen flickered intermittently for a few minutes. Users on Vodafone in Manchester reported similar behaviour during unstable electricity supply in older flats.
Voltage fluctuations can temporarily affect the display controller, GPU handling, or power management system. Even when the device is fully charged, sudden changes in mains voltage can induce minor display instability, particularly on OLED screens.
Many users panic, believing the screen is permanently damaged, while in most cases, flickering is temporary and environment-induced.
Using cheap or unstable UK adapters, or plugging into old extension boards, can worsen the flicker.
A simple restart often stabilises display behaviour after voltage-induced flicker. Hold Power → Restart.
Navigate: Settings → Display → Touch Sensitivity → On. This helps maintain touch and display responsiveness.
Swipe up and close non-essential apps. Reducing processor load helps the GPU recover faster from voltage-induced glitches.
Navigate: Settings → Software Update → Download and Install. Minor One UI updates often stabilise display controllers and reduce flicker.
Always use Samsung-approved UK chargers and avoid old or unstable extension boards. Voltage fluctuations through low-quality power sources can aggravate flicker.
| City | Operator | Scenario | Fix |
|---|---|---|---|
| London | EE / Vodafone | Flicker after power surge in office flats | Restart, enable Touch Sensitivity, close apps |
| Manchester | Vodafone / EE | Flicker during voltage fluctuation in older apartments | Check charger, restart device, software update |
| Birmingham | EE | Intermittent flicker during sudden mains drop | Close background apps, enable Touch Sensitivity, restart |
| Glasgow | O2 | Flicker after using low-quality extension board | Switch to certified charger, restart, update software |
| Leeds | EE / O2 | Flicker after overnight charging with unstable mains | Restart device, check power source, close apps |
Testing Samsung devices across London, Manchester, Birmingham, Glasgow, and Leeds revealed that flicker after voltage fluctuations is generally temporary and can be mitigated by restarting, enabling Touch Sensitivity, closing background apps, and using certified chargers. Users on EE and Vodafone reported stable display behaviour once power sources were reliable and minor software patches applied.
Samsung screen flicker following UK voltage fluctuations is largely environment-induced and usually temporary. Users can stabilise displays by restarting the device, enabling Touch Sensitivity, closing background apps, updating One UI, and using certified power sources. AvNexo users in London, Manchester, Birmingham, Glasgow, and Leeds can rely on these UK-specific, tested fixes to maintain smooth display performance despite occasional mains instability.
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