Your POCO F6 is built around a 6.67-inch 1.5K AMOLED panel that should hold a clean, steady image, so a sudden flicker, strobe, or faint horizontal tearing stands out immediately and makes you wonder whether the screen is failing. The reassuring part is that a lot of flicker on HyperOS phones traces back to software behavior, a bad app, or a charging hiccup rather than a broken panel.
Start with a free monitor test to check the panel with fullscreen test patterns. What you see there tells you whether to blame the display, the cable, or the source.
The fixes below are ordered from the safest, quickest checks to the more involved steps, ending with the official reset and after-sales paths. Work through them in order and stop as soon as the flicker disappears, since you may never need to reach the later steps. Every settings path here follows the official HyperOS support guidance, which covers POCO and HyperOS phones including the POCO F6.
Start by checking the panel for physical damage
Before you change any settings, look closely at the screen and its edges in good light. The official flicker guidance says to first make sure the screen is intact, because if there are obvious knock marks, dents, or cracks, the flicker is almost certainly a hardware problem.
If you do find impact damage, software steps will not help, and the right move is to take the phone to an authorized after-sales center rather than working through the rest of this list. If the glass looks clean and undamaged, continue with the software checks below.
Restart the phone, then force a reboot if it freezes
A normal restart clears the temporary glitches that often cause a flickering or stuttering display, and it does not erase any of your data. Power the phone off and back on the usual way first, then watch whether the flicker returns.
If the screen is frozen or completely unresponsive, use the official force-restart instead. The instruction for HyperOS phones is to press the power button for more than 10 seconds, which reboots the phone without deleting data.
If the phone will not respond at all, you can also try recovery mode. With the phone powered off, press and hold the volume up button and the power button together to see whether it enters Recovery mode. Once you are in that mode, press the power button for more than 10 seconds to restart the phone.
Calm the automatic brightness and refresh rate
Rapid, erratic brightness changes can look exactly like a flicker, so it is worth resetting how the display manages itself. In HyperOS, go to Settings > Display > Brightness level and tap to enable Automatic brightness, or toggle it off and back on to clear a stuck state. You can also enable Auto brightness quickly by swiping down from the upper-right corner of the phone to open the Control center.
Flicker can also follow a dynamically changing refresh rate. Go to Settings > Display > Refresh rate and choose Default, which lets the phone adjust the refresh rate on its own, then see whether the strobing settles.
One more thing to keep in mind here is that third-party brightness-control apps can override the system and cause flicker. If you have one installed, the Safe mode step below will help you confirm whether it is the culprit.
Switch back to the default HyperOS theme
If the flicker started right after you applied a custom personalization theme, the theme itself may be the trigger. The official flicker guidance specifically recommends reverting to the system default theme and then checking whether the problem stops.
Set the phone back to its standard theme, give it a few minutes of normal use, and watch the display closely. If the flicker clears, you have found the cause and can leave the default theme in place or try a different one.
Install the latest HyperOS update
Display bugs are frequently fixed in software, and the official flicker guidance explicitly recommends updating to the latest system version. Keeping HyperOS current is one of the most effective and lowest-risk fixes you can apply.
To check for an update on the POCO F6:
- 1.Go to Settings on your device.
- 2.Select the About phone option.
- 3.Tap the Xiaomi HyperOS icon.
- 4.Tap the three dots icon in the upper-right corner to check more settings and look for an available update.
If an update is offered, install it while the phone is charged or on power, then use the display normally to confirm the flicker is gone.
Use Safe mode to expose a misbehaving app
Safe mode starts the phone with only its built-in apps, which makes it easy to tell whether something you downloaded is causing the flicker. With the phone turned on, long press the volume down key to enter Safe mode; once you are in, the words "safe mode" appear in the lower-left corner of the screen.
Use the phone for a while in this state. If the flicker disappears in Safe mode, a third-party app is the likely cause, especially any security or screen-brightness app you installed shortly before the problem began.
To leave Safe mode, simply restart the phone. Then uninstall the suspect apps one at a time, checking the display after each removal, until the flicker stops returning.
When the flicker shows up while charging
If the screen only flickers or tears while the phone is plugged in or just after a charge, the cause is often related to heat, the battery, or the charger rather than the display itself. The charging-specific guidance gives a short set of checks to run.
- 1.Make sure the phone is not overheating while it charges, and let it cool if it feels hot.
- 2.Check the battery health, since an old or damaged battery cannot maintain steady power.
- 3.Use the original 90W charger or another correctly-rated charger and cable.
The POCO F6 charges only over 90W wired USB-C and has no wireless charging, so a charging-related flicker always comes down to the wired charger, cable, or battery. If the flicker continues with a known-good charger, move on to the reset and after-sales steps below.
Back up your data, then factory reset
If none of the software steps above resolve the flicker, a factory reset returns HyperOS to a clean state and can clear a deep software fault. This step erases everything on the phone, so back up first. The official warning is clear that performing a factory reset will erase all data on your phone, so make sure to back up any important data before proceeding.
You can start a backup from Settings > About phone > Backup & reset. Once your photos, accounts, and files are safely saved, follow the official reset path on HyperOS:
- 1.Go to Settings.
- 2.Select About phone.
- 3.Tap Factory reset.
- 4.Tap Erase all data.
- 5.Select Back up or not as your preference, then perform Factory reset.
After the reset, set the phone up and test the display before restoring all your apps, so you can tell whether the flicker is truly gone.
When to hand the phone to authorized after-sales
If the flicker is still there after you have updated HyperOS, ruled out apps in Safe mode, checked your charging setup, and even factory reset the phone, the issue is most likely hardware. The official guidance at that point is to take the phone to a Xiaomi authorized after-sales center for inspection.
A persistent flicker that survives a clean software state usually points to the AMOLED panel or the display connector, which is a service-level repair rather than something you can fix at home. Bringing it to an authorized center also keeps any warranty coverage intact.
Frequently Asked Questions
Does the POCO F6 have a DC dimming or anti-flicker toggle?
POCO does not document a user-facing anti-flicker or DC dimming switch in the POCO F6's HyperOS settings. The phone instead relies on hardware 1920Hz PWM dimming, a high-frequency dimming method designed to reduce visible flicker. A separate anti-flicker toggle is documented for some newer models, but that is not the same as the F6's built-in hardware approach.
Will a factory reset fix POCO F6 screen flickering?
A factory reset can fix flicker that is caused by software, since it returns HyperOS to a clean state. It will not help if the panel is physically damaged or failing. Always back up your data first, because the reset erases everything on the phone.
Can a charger cause the screen to flicker?
Yes. Flicker or tearing that appears while charging is often linked to heat, an aging battery, or an underrated charger. Use the original 90W wired charger and cable, and let the phone cool if it is hot. The POCO F6 has no wireless charging, so charging-related flicker always involves the wired setup.
Is POCO F6 screen flicker always a hardware fault?
No. Many cases come from a software bug, a custom theme, or a misbehaving app, which is why the update, theme, and Safe mode steps are worth trying first. If the flicker survives a factory reset, or there is visible impact damage, it is likely hardware and should be inspected by an authorized after-sales center.