Tablet screen flickering usually comes down to one of two things: a fixable software glitch or failing hardware. Before you assume the worst, know that most flicker issues are caused by display settings or a problematic app, and you can resolve them in a few minutes. If the flickering persists after trying every software fix below, then it's likely physical damage to the display or internal connection, which requires professional repair.
Why your tablet screen flickering happens
Your tablet's display is a finely tuned component, and flickering happens when the signal between the processor and the screen gets interrupted or corrupted. This can be triggered by automatic brightness sensors reacting to light, an incompatible refresh rate, a buggy app, or even heat from charging. The good news is that software-related flicker is far more common than a hardware failure, so you should work through the simple fixes first before spending money on repairs. By the end of this guide, you'll know exactly which setting or app is causing the problem and how to stop the flicker for good.
Quick software checks to stop the flicker
Start with the most common culprit: your display's auto-brightness feature. When Adaptive Brightness (or Auto-Brightness) is on, the tablet constantly adjusts the screen's brightness based on ambient light, which can cause visible flickering or pulsing. To fix this, open Settings > Display and toggle off Adaptive brightness (on Samsung/Android) or go to Settings > Accessibility > Display & Text Size and turn off Auto-Brightness on an iPad. After disabling it, manually slide the brightness bar to a comfortable mid-level setting, this alone stops the flicker in most cases. Additionally, turn off Dark mode or Night mode in Display settings, as these features can sometimes cause a low-frequency flicker on certain panels. Finally, perform a quick restart by swiping down from the top to open the Quick settings panel, tapping the Power icon, then selecting Restart > Restart, this clears any temporary software glitches.
Adjust refresh rate and motion smoothness
If the flicker persists, your tablet's refresh rate might be set too high for the content you're viewing. Many modern tablets default to a 120Hz or 90Hz adaptive refresh rate, which can cause flickering when the screen dynamically changes between rates. To stabilize it, go to Settings > Display > Motion smoothness (on Samsung Galaxy devices) and select Standard (60Hz). For other Android tablets, navigate to Settings > Display > Advanced > Refresh Rate and choose Standard 60Hz. If you notice the flicker only happens while charging, set Motion smoothness to Adaptive instead, since some devices have a known quirk where a fixed high refresh rate conflicts with the charging current. After changing this setting, the screen should display a steady image without any pulsing or flashing.
Boot into safe mode to find a faulty app
When the flicker continues, a third-party app you recently installed is likely the trigger. To confirm this, you'll need to boot your tablet into Safe Mode, which temporarily disables all non-system apps. On a Samsung tablet, press and hold the Volume down key and the Side key until the Power off screen appears, then tap and hold the Power off icon until the option for Safe mode pops up, and tap it. Alternatively, turn off your device completely, then power it on while pressing and holding the Volume down button, you'll see "Safe mode" displayed in the bottom left corner of the screen. Once in Safe Mode, check if the flickering stops. If it does, an app is definitely the culprit. Uninstall the most recent app you downloaded before the problem started, then reboot normally. Repeat this process (uninstall the latest app, reboot, test) until the flickering disappears. This is the most reliable way to isolate the problematic app without losing your data.
Update your tablet software and apps
Outdated operating systems and apps often contain bugs that cause display glitches, including screen flickering. To rule this out, check for system updates by going to Settings > Software update > Download and install (on Samsung) or Settings > System > System update (on stock Android). For iPads, go to Settings > General > Software Update. While you're at it, open your app store (Google Play Store or App Store), tap your profile icon, and select Update all to ensure every app is running the latest version. App updates frequently include fixes for compatibility issues that cause flickering, so this step is essential. If you have automatic updates enabled, your tablet will handle this in the background, but it's worth manually checking to be sure you haven't missed a critical patch.
Prevent overheating and performance issues
Heat is a silent killer of tablet screens. When your device gets too warm, whether from heavy gaming, direct sunlight, or using it while charging, the internal components can struggle, leading to flickering and other display anomalies. To prevent this, close any background apps you're not using by swiping up and away from the recent apps screen. Also, make sure your tablet has proper ventilation; avoid using it on soft surfaces like a bed or couch that block airflow. Most importantly, don't use your tablet while it's plugged in, especially if you're running demanding apps, as this generates excessive heat. These simple habits can eliminate heat-induced flickering entirely.
When to seek professional repair
If you've tried every software fix above and the tablet screen flickering persists even in Safe Mode, you're likely dealing with a hardware problem. Clear indicators include a smashed or cracked screen, water damage, or flickering that continues regardless of brightness, refresh rate, or app activity. In these cases, the display panel itself or the ribbon cable connecting it to the motherboard is likely damaged. Do not attempt to open the tablet yourself, as this voids your warranty and risks further damage. Instead, contact the manufacturer's support center or book a repair with an authorized technician. If you have a cracked screen, a genuine replacement is the only lasting solution. For all other hardware issues, a professional diagnostic is necessary to identify whether the battery, charging port, or display connector is at fault. Remember, persistent flickering after troubleshooting is a strong sign that your tablet needs physical repair, so don't delay in seeking expert help.
