Used to create a bootable micro SD card that automatically flashes the firmware when the device starts .
Most A133 firmware is rootable via Magisk using the boot.img patching method. (Do not use SuperSU; it is obsolete for Android 10+). allwinner a133 firmware better
The A133 officially supports Linux Kernel 4.9. However, "better" firmware backports drivers from Kernel 5.4 LTS. You want firmware that includes: Used to create a bootable micro SD card