Not aloved Persist.img flashing to Persist then flash it in to System,
I did it, but also asked to do Factory reset and it wipe all and when it not help then USE PBRP recovery ibstal as boot and PC can see Mi A2 and if you have this firmware files FOLDER "images" then copy it to phone TWRP new folder ALSO COPY FROM PBRP recovery.zip folder "Tools" it help to get root and can again to fastboot and install TWRP v.3.2.3 jasmine.img (NOT 3.5.2)
AND FLASH ALL images to their directories and which of them DO NOT LIKE IT, flash them in to "System images"
I install Oreo 8.1 becouse all that beauty like LegionOS 3.12 android 11 even with Magisk the true junk.
AND DO NOT FORGET TO PATCH YOUR boot.img With Magisk and use boot_patched.img
AND IT WILL WILL BOOTLOOP AGAIN AND AGAIN AND GO RECOCERY and enjoy with "Grafic test"..
and get mad and "Wipe data Factory reset"
and "Reboot system Now"..
I instal all that to "a" and "b" day after day a long week "Fastboot - Rabbit" only help me