Stuck FastBoot Mode

Mi11Lite5G loops into fastboot after install fastboot change slot I managed to set slot A active with no further change and am now struggling to set slot B active fastboot --set-active:a fastboot fastboot getvar currentslot Fastboot firmware, ZIP firmware is official from Xiaomi EU ROM, TWRP and Card slot microSDXC Internal 64GB 4GB RAM, 64GB 6GB RAM

fastboot get active slot I guess your bootloader is unlocked? Did you try to change the active slot? Get the current active boot slot: fastboot getvar current-slot