# rkdeveloptool > Flash, dump, and manage boot firmware for Rockchip-based computer devices. > You will need to turn on the device into Maskrom/Bootrom mode before connecting it through USB. > Some subcommands may require to run as root. > More information: . - [l]ist all connected Rockchip-based flash [d]evices: `rkdeveloptool ld` - Initialize the device by forcing it to [d]ownload and install the [b]ootloader from the specified file: `rkdeveloptool db {{path/to/bootloader.bin}}` - [u]pdate the boot[l]oader software with a new one: `rkdeveloptool ul {{path/to/bootloader.bin}}` - Write an image to a GPT-formatted flash partition, specifying the initial storage sector (usually `0x0` alias `0`): `rkdeveloptool wl {{initial_sector}} {{path/to/image.img}}` - Write to the flash partition by its user-friendly name: `rkdeveloptool wlx {{partition_name}} {{path/to/image.img}}` - [r]eset/reboot the [d]evice, exit from the Maskrom/Bootrom mode to boot into the selected flash partition: `rkdeveloptool rd`