• XDA Forums have been migrated to XenForo. We are aware of several issues including missing threads, logins not working, and more. To discuss, use this thread.

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

ugene1980

New member
Dec 18, 2012
119
137
0
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
 
Last edited:

Sif1110

New member
Sep 8, 2016
22
0
0
This was released by a two Chinese developers ZhenXin and Andy Chang, The 90hz mod should be coming soon as well

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 working perfectly
- Minimal battery drain due to slight overclock from original(60hz)

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
- 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
- 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
==================================
Does it requires root or only bootloader unlocked.
Can i use it without root?
 

majimbo

New member
Sep 21, 2016
19
6
0
This was released by a two Chinese developers ZhenXin and Andy Chang, The 90hz mod should be coming soon as well

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 working perfectly
- Minimal battery drain due to slight overclock from original(60hz)

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
- 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
- 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 4796510
View attachment 4796522

Any inconvenience like the green tint in Mi 9? Low/distorted colors?

Will it be possible to overclock up to 84hz like Mi 9?
 
  • Like
Reactions: JafarSodik17

ugene1980

New member
Dec 18, 2012
119
137
0
Does it requires root or only bootloader unlocked.
Can i use it without root?
- Flash via fastboot or twrp = requires bootloader unlocked
- Flash via the Lanthanum System Toolbox app = requires root

Any inconvenience like the green tint in Mi 9? Low/distorted colors?
Will it be possible to overclock up to 84hz like Mi 9?
- No green tint at low brightness so far for me
- Developer hinted at a 90hz mod which will come out late, personally i think 75hz is a great value compromise , minimal battery drain and much smoother than 60hz
 
  • Like
Reactions: silvbm and zain720

Schnedi

New member
Oct 27, 2011
895
2,005
0
I tried it in a GSI ROM, it didn't work of course x-D

Bootloop to fastboot, had to restore the backup.

I knew it wasn't going to work because backed up DTBO is 32MB in GSIs, but I wanted to be sure.
 

majimbo

New member
Sep 21, 2016
19
6
0
- Flash via fastboot or twrp = requires bootloader unlocked
- Flash via the Lanthanum System Toolbox app = requires root



- No green tint at low brightness so far for me
- Developer hinted at a 90hz mod which will come out late, personally i think 75hz is a great value compromise , minimal battery drain and much smoother than 60hz
Perfect, flashed and working on Xiaomi.eu 10.3.15. :good: