ProgrammerSought

Formatting the data partition
    For the 7.1 system, if you need to format the data partition, you can open RECOVERY_SDBOOT_FOEMATE_DATA ?= true in the broadconfig file in the device directory

device/rockchip/common/BoardConfig.mk
    RECOVERY_SDBOOT_FOEMATE_DATA ?= true

Do not format the data partition
    To ensure that 100% of the data partition is not formatted when updating the mirror image, you can do the following operations
    1. Turn off RECOVERY_SDBOOT_FOEMATE_DATA
        RECOVERY_SDBOOT_FOEMATE_DATA ?= false
    2. Do not add misc partitions when making the update package