If you are looking to update a device with this specific identifier, follow these general steps:
If device boots, use adb shell getprop ro.build.fingerprint or check /etc/firmware/ (Linux) or system/build.prop for ro.build.display.id . k1006p9mbv10+20b3+firmware+2021+best
For owners of compatible 2021-era Android boxes, this firmware remains a top recommendation If you are looking to update a device