How to Fix Samsung Galaxy S24 Ultra Screen Flickering After Update

If you own a Samsung Galaxy S24 Ultra and you notice the screen flickering after a recent update, we know how disruptive that can be. Our editorial team at Phone2Charger has reviewed this issue many times, and the pattern is usually tied to software instability, app conflicts, or power delivery. The display itself can be healthy, but the system may be sending mixed signals during brightness changes, refresh rate shifts, or touch refresh cycles. This guide is designed as a quick fix guide to help you stabilize the screen.

Start by checking whether the flicker is constant or only appears during touch, video, gaming, or charging. That detail matters because it points toward different causes. A constant flicker may point to a software fault, while a flicker during charging may point to battery or accessory issues. Because the problem began after an update, the software path is often the first place to look. Still, power delivery can trigger the same symptom, so do not ignore charging hardware.

• Symptom: screen flickering on Samsung Galaxy S24 Ultra after update.
• Primary fix: restart the device and test in safe mode.

This quick summary gives you the main symptom and the first recommended action before we move into the detailed steps.

Step-by-Step Solutions to Fix the Issue

Fix 1: Restart and Test in Safe Mode

The most effective first fix is to determine whether a third-party application is responsible. Safe mode lets the core system run without third-party apps interfering with display services.

1. 1. Back Up Your Important Data: Protect your photos, messages, contacts, and files before any reset or repair process.
2. 2. Force Restart the Device: Press and hold the power button, then tap Restart when the menu appears, or hold the power and volume down buttons for about ten seconds.
3. 3. Enter Safe Mode: Power the device on, then press and hold the power button and long press the Power Off option until Safe Mode is selected.
4. 4. Test the Screen Flicker: Use the phone for touch, brightness, and media tests. Watch for flickering, stutter, or loss of touch response.
5. 5. Restart Normally: Exit safe mode and restart the device. Then use the phone as usual to see if the flicker returns.

If the flicker stops in safe mode, a third-party app is likely the trigger. Uninstall recently installed apps one by one and test again.

Fix 2: Clear the System Cache Partition

If the restart does not help, clear the system cache. This can remove corrupted update cache files without removing personal data.

1. 1. Power Off the Device: Turn the phone completely off.
2. 2. Enter Recovery Mode: Press and hold volume up plus the power button, then release when the Samsung logo appears.
3. 3. Open Wipe Cache: Use the volume keys to move to Wipe Cache and press the power button to select it.
4. 4. Reboot the System: Choose Reboot System Now and let the device start normally.

Fix 3: Check Battery and Charging Behavior

Screen flicker can also appear when power delivery is unstable. If the issue began after an update and occurs during charging, test with the original charger and cable. Remove thick cases that may trap heat. If the flicker only happens while charging, avoid unofficial accessories and consider a battery check.

A Calm Eye Before You Decide

If the safe mode test, cache wipe, and charging test do not resolve the flicker, the issue may require deeper service. Our team at Phone2Charger Editorial Team understands that a faulty screen or outdated power hardware can feel like a dead end. Still, repairing the device is often the best first choice when possible, because it preserves your data and reduces security and performance risks. Before you rush a replacement, try the steps above in order.

If these steps do not settle the display, it may be time to contact official support or consider repair. Our team at Phone2Charger Editorial Team always recommends careful repair before replacement. Visit our store to browse our certified, fully tested catalog of high-end chargers, cables, and diagnostic accessories that guarantee safe and flawless device operation.