Missing Partition xbl_b

Help Fairphone 5
, , , ,
2

Even in the script provided by Fairphone to restore the Stock ROM, I had to comment out the regarding lines:

    flash_image_or_abort xbl_a "${IMAGES_DIR}/xbl.elf"
    # flash_image_or_abort xbl_b "${IMAGES_DIR}/xbl.elf"
    flash_image_or_abort xbl_config_a "${IMAGES_DIR}/xbl_config.elf"
    # flash_image_or_abort xbl_config_b "${IMAGES_DIR}/xbl_config.elf"