清nvram

方法1：

adb root
adb shell rm -rf /mnt/vendor/nvcfg/camera
adb shell "ps -A | grep cameraserver | grep -v grep | sed 's/ [ ]*/:/g' | cut -d: -f2 | xargs kill -9"
adb reboot

方法2：

@echo on
adb wait-for-device
adb root
adb shell rm -rf  mnt/vendor/nvcfg/camera/cctNvramFile/* 
adb shell rm -rf  mnt/vendor/nvcfg/camera/cctNvramFile/* 
adb shell rm -rf data/vendor/camera_dump/*
adb shell rm -rf mnt/vendor/nvcfg/camera/*
adb shell rm -rf mnt/vendor/nvdata/media/*
adb shell rm -rf data/vendor/cameraserver/*
adb shell rm -rf data/misc/cameraserver/*
adb shell rm -rf sdcard/DCIM/Camera/*
adb shell rm -rf /data/nvram/* 
adb shell pkill camera*
adb shell stop  camerahalserver
adb shell start camerahalserver
pause

adb reboot