Master Boot Record and bootloader

The SoftDevice supports the use of a bootloader. A bootloader may be used to update the firmware on the SoC.

The nRF52 software architecture includes a Master Boot Record (MBR) (see System on Chip application with the SoftDevice). The MBR is necessary for the bootloader to update the SoftDevice, or to update the bootloader itself. The MBR is a required component in the system. The inclusion of a bootloader is optional.