[App]Galaxy Max Hz (Refresh Rate Mods, Screen-off Mods and More)

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Aug 3, 2021
Pressing 120hz tile in quick settings panel would do 60hz. Now instead it opens menu with configuration. Could u revert change?


Oct 28, 2022
It seems after update s20 ultra 988n korian version 48 mhz refresh rate desabled.nob48 mhz refresh rate applied so far.
Did you experiencing in adaptive refresh screen flicker when goes down to 60? It's annoying when you have dimmed screen. Please repair it.
Easy fix, just adjust the threshold of brightness so that the Refresh Rate stays at 120/96, when at a brightness lower than 15/10 percent. Whatever makes you uncomfortable.

This app is amazing, and please don't make this seem as a bug since you clearly didn't read the faq. But if you still didn't read it, it's basically caused by each device's display being manufactured dfifferently and maybe due to some limitations in the technology depending on the gen phone you are using.
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My refresh rate lowers to 60fps when I lowered down the brightness. Is this new update? I used to have may set fps even when lower brightness.


30, 60, 120 fps is working fine with super low brightness but when using 96fps it turns to 60.
Is this normal or I'm doing something wrong?
Last edited:
Aug 17, 2022
Hello, the app broke completely for me

S20+ snap dragon varient, it was working perfectly fine and now nothing shows up, I restarted the phone and cleared cache too.

SmartSelect_20221108-172329_Galaxy MaxHz.jpg


Dec 30, 2012
Galaxy S20+ exynos, app version 8.0.10: 120hz with battery saving not working after updating to Android 13. Tried clearing data and reloading profiles. Any fix?
It seems Samsung totally disabled 48Hz in S20 OneUI5
Yeah, using SM-G980F here too and that was not working, i had to uninstall the because i felt it was not worth keeping it, seemed that was draining a big chunk of battery but not showing on device care.
Especially if i had the adaptive mode enabled or features like autosync off when screen off, or even the quick doze


Senior Member
Mar 28, 2014
Yeah, using SM-G980F here too and that was not working, i had to uninstall the because i felt it was not worth keeping it, seemed that was draining a big chunk of battery but not showing on device care.
Especially if i had the adaptive mode enabled or features like autosync off when screen off, or even the quick doze
That's strange.
The app consumption should be what is shown in the device care.

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    About this app:

    Refresh Rate Mods

    • Change default refresh rates
      -Easily change the overall refresh rate settings of devices supporting multiple refresh rates.
      -Set supported mid refresh rates as the maximum refresh rate limit for battery savings (e.g. 96hz instead of 120Hz).
      -Quick settings shortcut
      -tasker plugin support.

    • Motion smoothness mode switcher(Normal, Adaptive or High)***
      -Apply adaptive mod on device that don't natively support adaptive mode [premium]
      -Tasker plugin support.

    • Per-app refresh rate settings:
      Set different refresh rate settings for every app either adaptive or fixed(stationary) [premium].

    • Motion smoothness on power saving mode (not working to all devices with OneUI4.**+, test first). ***
      -GMH will apply a workaround to bypass 60Hz limitation on Power Saving Mode (PSM) on supported Samsung smartphones.
      -Automatically apply workaround when PSM is enabled [premium]
      Note: The workaround is already blocked in OneUI5.0. Check the extra steps provided in the app.

    Screen-off Mods:
    • Force to Lowest Hz: Force the lowest refresh rate on screen-off or Always-On Display(AOD). This overrides Samsung's strange stock behavior which sets the refresh rate to the highest on screen off (update: it is now at 60hz since OneUI3.0) to improve standby power consumption a bit.
      -Tasker plugin support

    • Auto apply power saving mode during screen-off (after ~ 10 secs)***

    • Auto disable Autosync***

    • Quick-doze mod
      Quickly enter doze mode during screen-off that can not be interrupted by motion [premium].***
      -Tasker plugin support

    • Auto SENSORS OFF (experimental non-root workaround)
      -Device sensors will automatically turn off while screen is off until the device is unlocked to help minimize battery-draining motion-triggered wakelocks while device is not being used.
      -Tasker plug-in support
    • Battery protection mod (Experimental)
      -Option to set maximum charge to 86%-95%(for OneUI4+)[premium]

    • Quick resolution switcher
      -Easily switch to any supported resolutions using the included quick setting tile***
      -Tasker plugin support
      Caution!! Be careful on applying CQHD+ on S20 series with OneUI4.* - it causes the UI to shrink after reboot or long sleep that causes difficulty on entering the lockscreen.

    • Customizable refresh rate monitor
      Use statusbar or overlay which you can place anywhere on screen.
      -Tasker plugin support.

    • Net speed statusbar indicator
    OneUI inspired UI. Dynamic theme and Icon. Manual language selection

    Note: The premium license is on a per device basis (not per user).

    ***these marked features require a one-time ADB procedure (this is not root)

    Galaxy Max Hz background service is highly optimized. Background battery usage p is very negligible .

    This app targets older android sdk in order to control refresh rates without ADB setup or root. Just tap OK the dialog that says "This app was built for an older version of Android...." when opened for the first time. If OK button is not visible, just tap the blank space on the lowest portion of the dialog.

    If google play protect will prompt during install that the app is built for older version of android and doesn't include the latest privacy protections, you can ignore it and proceed to the installation. For privacy related concern, please refer to FAQ No. 3.


    Github wiki (Please read specially before asking questions or reporting bugs)

    v7.14.17 in-app update now available
    -Auto sensors off workaround for OneUI4.0
    -Fixed bug: setting min hz for adaptive (%lhz) usingTasker not working
    -Fixed bug: unable to turn off accessibility when no feature requiring such is enabled
    -experimental workaround for enabling Adaptive/High refresh rate on PSM on OneUI4.0 (may not work on some)
    - other stability fixes
    But I am working on working around this limitation. :)
    Update: After spending some hours of research and tests, I think I now have a workaround to mimic adaptive refresh rate behavior for devices with high refresh rates like S20s. Not 100% perfect but seems working well.
    v6.62.25 now up! :)
    - Fixed crash when opening some apps in Secured Folder
    - Minor improvements on adaptive mod
    v6.62.10 changes:
    - Fixed intermittent bug on restoring power mode settings on screen-on when using quick power-doze mod

    I am getting crashes after latest update. Mostly when I switch between normal apps and apps in secure folder. The app has stopped and it closes.
    Now that I did the thing with the adb I have the same problem. Small screen flash when the rate changes.
    Yes, because you are in adaptive mode now. Adaptive is working but not the high mode. I will push an update to fix this soon.