操作：
adb root
adb disable-verity
adb reboot
adb root
adb remount


Android P + kernel-4.9 or after:
adb reboot bootloader
fastboot flashing unlock
press volume up key
fastboot reboot
adb root
adb disable-verity
adb reboot
adb root
adb remount


Android P + kernel-4.9 or after
- download preloader with verified boot disabled which location is the same as scatter file. //preloader_<PROJECT>_SBOOT_DIS.bin
- boot to Home Screen
- go to setting -> system -> Developer options -> OEM unlocking
- adb reboot bootloader
- fastboot flashing unlock
- press volume up key
- fastboot reboot
- adb root
- adb disable-verity
- adb reboot
- adb root
- adb remount