The Km2v8001cm-b707 eMMC chip has reached the end of its life cycle or has suffered physical solder degradation.
adb shell cat /sys/block/mmcblk0/device/cid cat /sys/block/mmcblk0/device/fwrev Km2v8001cm-b707 Firmware
Navigate to > Software Update > Download and Install . The Km2v8001cm-b707 eMMC chip has reached the end
and perform a power cycle.