Hi guys
so i have a redmi k30 running on miui 12 EU rom android 11, rooted with magisk boot image flash. i want to apply patch to android signature verification always true but when i enter the patch to android menu the signature verification patches are not checkable and when i click on them some warning appears but still i am not able to select them.

the above warning appears when i click on signature verification always true.

still after clicking ok am not able to select the patch

although i have patched the 3rd patch "disable signature verification in the package manager" and it works as it should.

also i checked in my root directory and i can find services.jar but core.jar is Missing.

Can some big brain solve this problem please...