• Introducing XDA Computing: Discussion zones for Hardware, Software, and more!    Check it out!

[MOD][ROOT] Overclock your screen to 75hz refresh rate (other refresh rates later)

Search This thread

fireheart2008

Senior Member
Sep 24, 2013
64
3
Since OP deserted the post [Last edited by ugene1980; 16th September 2019], can someone please tell me the up-to-date instructions for miui 11 | 9.12.27 ?
 
Last edited:
  • Like
Reactions: ErnestoSV

feyzna

Senior Member
Aug 8, 2019
78
10
Since OP deserted the post [Last edited by ugene1980; 16th September 2019], can someone please tell me the up-to-date instructions for miui 11 | 9.12.27 ?

here's the step2step
1. Download the img
2. Reboot to TWRP
3. Backup DTBO Partition
4. Flash the img n select dtbo partition
5. Reboot to system
6. Done

--Edit--
75hz img
 

Attachments

  • dtbo75Q_K20P_12.18_Dev_Len.img
    5.9 MB · Views: 321
Last edited:
  • Like
Reactions: fireheart2008

FLash52

Senior Member
Feb 24, 2013
213
17
constanta
here's the step2step
1. Download the img
2. Reboot to TWRP
3. Backup DTBO Partition
4. Flash the img n select dtbo partition
5. Reboot to system
6. Done

--Edit--
75hz img
For xiaomi.eu 11.0.5 stable any Len or this thread's mods doesn't work with any steps. It installs but it doesn't apply, on ufotest its 60hz and it feels like 60.
 

xtolicc

New member
Jan 2, 2020
2
0
serres
problem

i tried it at HMK20ProMI9TPro_9.12.27_v11-10 (Raphael) and i when i tried to boot i get redmi logo and then black screen. Cant join to twrp or smthing... i have backup btw
 
Last edited:

feyzna

Senior Member
Aug 8, 2019
78
10
For xiaomi.eu 11.0.5 stable any Len or this thread's mods doesn't work with any steps. It installs but it doesn't apply, on ufotest its 60hz and it feels like 60.

right i forgot to mention my spec
Mi9T Pro global stock rom 11.0.1.0 + 75hz mod
 

Attachments

  • Screenshot_2020-01-03-20-36-00-653_com.android.chrome.jpg
    Screenshot_2020-01-03-20-36-00-653_com.android.chrome.jpg
    128.4 KB · Views: 480

akhand_h1y

New member
Jan 3, 2020
2
1
Not working

This was released by a two Chinese developers ZhenXin(@realheart) and Andy Chang(@atomsand)

Current released mods: 75hz & 81hz (For Android 9) and 66hz/69hz/72hz (For Android 10)

Android 9 Mods Currently works/tested on:
- Chinese dev rom 9.7.11 and below ONLY (xiaomi.eu weekly works too as it is based on the chinese dev rom)
- Chinese stable rom 10.3.16 and below ONLY (xiaomi.eu stable works too as it is based on the chinese stable rom)
- Global/Indian stable rom 10.3.3.0 - see here thanks @954wrecker
- I tested it on xiaomi.eu 9.7.4 (imho the most stable version) on a China set K20 Pro 8gb+128gb
- 75hz and 81hz both working perfectly
- Minimal battery drain due to slight overclock from original(60hz) for the 75hz version, 81hz seems minimal as well

Android 10 Mods Currently works/tested on:
- 9.8.15 working well​

Use it at your own risk! It is unknown if it causes any long term or temporary damage to the screen yet. (But since it uses the same screen as the mi9, which has the same mod released a while back, it should be fine!)

==================================
USAGE INSTRUCTIONS
==================================

MAKE A BACKUP OF DTBO PARTITION FIRST!! (Two Methods choose one)
>>>Via TWRP
- Boot to TWRP
- Select Backup
- Select only the DTBO partition
- Select storage location, click backup

>>>Via Lanthanum System Toolbox App
- Download the attached Lanthanum System Toolbox.apk file, install the apk, then open it
- Select partition settings from the hamburger menu
- Select dtbo, make a backup of it (Export image)

FLASH THE MOD (Four methods choose one)
>>>Via TWRP
- Download the attached dtbo_K20P_75Hz_d2e98.img (or dtbo_K20P_81Hz.img)
- Copy it to your thumbdrive or phone
- Boot to TWRP
- Select install
- Select install image
- Choose your image file
- SELECT DTBO partition to flash the file to
- Swipe to confirm flash!

>>>Via Fastboot
- Connect phone(bootloader mode) to computer
- Open up command prompt
- Type fastboot devices to ensure device is connected
- Type: Fastboot flash dtbo dtbo_K20P_75Hz_d2e98.img (or dtbo_K20P_81Hz.img)
- Done!

>>>Via Lanthanum System Toolbox App
- Download the attached Lanthanum System Toolbox.apk file, install the apk, then open it
- Select partition settings from the hamburger menu
- Select dtbo again, click flash image, and choose the dtbo.img file
-Reboot

>>>Via Magisk module
- Coming soon, will update once I downloaded it

You should see the changes immediately after the restart. It's way smoother than before.
If you want to go back to default, flash your backed up dtbo image file either via fastboot or TWRP restore partiton

==================================
DOWNLOAD
==================================
View attachment 4796522
For Android 9:
View attachment 4796510
View attachment 4797327
For Android 10:
View attachment 4820357
View attachment 4820358
View attachment 4820359
View attachment 4820360
Not working for MIUI 11..0.1.0 android 10 Global
 

rOck4n

Senior Member
Dec 17, 2010
243
50
www.geekologia.net
For me the only one working is the 75Hz and 69Hz from OP. Any other one won't show on test UFO or FPS Speed Test Apps. I'm on Evolution X and latest IMMENSITY kernel.
 

flecha121

New member
May 5, 2019
2
0
Can anyone help me?

I fked up, I flashed 69Hz version on my phone, running Xiaomi.eu global beta 20.1.2 and the fp stopped working, but the problem is I didn't make a backup.

The only thing I tried so far was flashing 60Hz version present on this thread, but nothing, still fp not working.

Anyone could help me pls?
 

doixanh

Inactive Recognized Developer
Jan 23, 2011
1,269
5,349
I'm on Xiaomi.eu 11.0.3, IMMERSIVE 12/31 and got 75Hz working fine, even without DC dimming...
 

Attachments

  • Screenshot_2020-01-04-08-37-55-538_com.kiwibrowser.browser.jpg
    Screenshot_2020-01-04-08-37-55-538_com.kiwibrowser.browser.jpg
    203.1 KB · Views: 640

Himanshuarora12345

New member
Jan 4, 2020
4
1
Android 10

Is the developer working on a 81hz refresh rate for android 10?
I had a high refresh rate mode for android 9 but after update it is back to normal.
Badly want an 81hz for android 10.
 
  • Like
Reactions: Dextor69

LordShini06

New member
Jan 4, 2020
1
0
Fingerprint didnt work

I try 72hz and 69hz for android Q and fingerprint just not work.
Im using xiaomi.eu 20.1.2 with android 10.
Any fix for that?
 

Top Liked Posts

  • There are no posts matching your filters.
  • 72
    This was released by a two Chinese developers ZhenXin(@realheart) and Andy Chang(@atomsand)

    Current released mods: 75hz & 81hz (For Android 9) and 66hz/69hz/72hz (For Android 10)

    Android 9 Mods Currently works/tested on:
    - Chinese dev rom 9.7.11 and below ONLY (xiaomi.eu weekly works too as it is based on the chinese dev rom)
    - Chinese stable rom 10.3.16 and below ONLY (xiaomi.eu stable works too as it is based on the chinese stable rom)
    - Global/Indian stable rom 10.3.3.0 - see here thanks @954wrecker
    - I tested it on xiaomi.eu 9.7.4 (imho the most stable version) on a China set K20 Pro 8gb+128gb
    - 75hz and 81hz both working perfectly
    - Minimal battery drain due to slight overclock from original(60hz) for the 75hz version, 81hz seems minimal as well

    Android 10 Mods Currently works/tested on:
    - 9.8.15 working well​

    Use it at your own risk! It is unknown if it causes any long term or temporary damage to the screen yet. (But since it uses the same screen as the mi9, which has the same mod released a while back, it should be fine!)

    ==================================
    USAGE INSTRUCTIONS
    ==================================

    MAKE A BACKUP OF DTBO PARTITION FIRST!! (Two Methods choose one)
    >>>Via TWRP
    - Boot to TWRP
    - Select Backup
    - Select only the DTBO partition
    - Select storage location, click backup

    >>>Via Lanthanum System Toolbox App
    - Download the attached Lanthanum System Toolbox.apk file, install the apk, then open it
    - Select partition settings from the hamburger menu
    - Select dtbo, make a backup of it (Export image)

    FLASH THE MOD (Four methods choose one)
    >>>Via TWRP
    - Download the attached dtbo_K20P_75Hz_d2e98.img (or dtbo_K20P_81Hz.img)
    - Copy it to your thumbdrive or phone
    - Boot to TWRP
    - Select install
    - Select install image
    - Choose your image file
    - SELECT DTBO partition to flash the file to
    - Swipe to confirm flash!

    >>>Via Fastboot
    - Connect phone(bootloader mode) to computer
    - Open up command prompt
    - Type fastboot devices to ensure device is connected
    - Type: Fastboot flash dtbo dtbo_K20P_75Hz_d2e98.img (or dtbo_K20P_81Hz.img)
    - Done!

    >>>Via Lanthanum System Toolbox App
    - Download the attached Lanthanum System Toolbox.apk file, install the apk, then open it
    - Select partition settings from the hamburger menu
    - Select dtbo again, click flash image, and choose the dtbo.img file
    -Reboot

    >>>Via Magisk module
    - Coming soon, will update once I downloaded it

    You should see the changes immediately after the restart. It's way smoother than before.
    If you want to go back to default, flash your backed up dtbo image file either via fastboot or TWRP restore partiton

    ==================================
    DOWNLOAD
    ==================================
    View attachment Lanthanum_System_Toolbox.apk
    For Android 9:
    View attachment dtbo_K20P_75Hz_d2e98.img
    View attachment dtbo_K20P_81Hz.img
    For Android 10:
    View attachment dtbo_K20Pro_(Q)_60hz.zip
    View attachment dtbo_K20Pro_(Q)_66hz.img
    View attachment dtbo_K20Pro_(Q)_69hz.img
    View attachment dtbo_K20Pro_(Q)_72hz.img
    8
    Decided to invest some time and reverse engineer the patch real quick to see what makes it tick and what keeps it from working on Global units.

    Turns out the whole dtbo.img is completely different.
    In fact, the dtbo.img of Global units is nearly double the size of the Chinese variants.

    I quickly realized that getting this running on Global units (and maybe EEA?) would require people to provide their own dtbo.img (for whatever region their device is from), and apply this patch on top of it.

    As part of that I created a simple patcher tool onto which you drag your dtbo.img file to get it patched to 81Hz, once done you'd just flash the patched dtbo.img.out file the tool spits out.

    I'd provide the link but XDA is brutal about Patreon and other external links. For those that really want to find it though, it's easy enough just googling for my Black-Seraph username.
    8
    Hello friends,

    I've removed some posts with rude language and off topic discussion.
    Please keep in mind to discuss on topic and without offending others:)
    Please be friendly to members and report with prove/logs/facts instead of reply/engage without content.

    I recommend to read the FORUM RULES.


    Regards!

    strongst
    Forum Moderator
    6
    Just install immensity kernel and this dtbo and you will have 75hz working everywhere with no green tint and no need to disable hw overlays and DC anti flickering no frame drops and works with all ROMs.

    Btw immensity kernel got no bugs at all now, boosts performance in an unbelievable way and is the only way to let this 75hz dtbo work properly on Raphael (tried with can based firmware Xiaomi.eu 11.0.5 and European global firmware, if you install this kernel the dtbo works , otherwise no way). This is actually the best way to have refresh oberxlocked with no issues

    Finally it works with l1 hdr and netflix also, all problems solved, I suggest manually installing also dual speaker XML mixer files in system vendor etc folder setting permissions rw-r-r 0644 to enjoy the greatest possible experience

    Use with root es file explorer to move files in root and set permission using the option properties

    All files attached , dtbo must be unzipped and use the image to flash it through twrp


    Also install in magisk 320kbps audio bitrate (normally is 96).

    If you can install viper as well use it with tube amplifier convoiler with -14db master audio and you ll enjoy something exceptional

    Of course need selinux switched on permissive, ADB and busybox installed, audio modification library then install viper drivers and set it as you like, if driver installation fails try and retry , maybe unchecking in magisk modules the aml
    5
    Does this mod make only the screen refresh more frequently or does this mean the touch screen digitizer also samples more frequently?

    At launch the digitizer was touted to be 180hz, it was throttled to 60hz in newer firmware.
    This mod increases the touch frequency to match the response rate (either 75 or 81)
    OHNUqDc.jpg

    You can test yours using this app: View attachment dc.xyn.touchrequency1.2.apk

    Would i work on further versions of miui if someone managed to port the adreno drivers?

    Yup, the dev is working on porting adreno drivers so it can be used on newer eu weeklies/newer china dev rom