How to backup DRM key

[q844268235]

Hi
I have an xperia 5
I want to unlock the bootloader
But I noticed that DRM will be disabled after unlocking the bootloader
I want to know if there is a way to backup the DRM and restore it after unlocking the bootloader

[xperia 1/5] temp root exploit via CVE-2020-0041 including magisk setup

temp root exploit for sony XPERIA 1 and XPERIA 5 with android 10 firmware including temporal magisk setup from the exploit The exploit uses CVE-2020-0041 originally designed for Pixel 3 running kernel 4.9. This is a modification of the Pixel 3...

forum.xda-developers.com

I noticed this thread, which seems to make backups possible
But, how to export and restore the DRM?

 

[V0latyle]

Unless Sony is doing something out of the ordinary, the DRM key is not the issue. When the bootloader is unlocked, the device will fail Play Integrity, which most apps use as a measure of hardware and system integrity. You can fix this with a Magisk module.

More information here

 

[q844268235]

Unless Sony is doing something out of the ordinary, the DRM key is not the issue. When the bootloader is unlocked, the device will fail Play Integrity, which most apps use as a measure of hardware and system integrity. You can fix this with a Magisk module.

More information here

Hi
I have not used sony for about 8 years
I remember that sony is using it to protect some patented technology
If the key disappears after unlocking the bootloader
After that the phone will permanently lose some functions