Programming the modem firmware loader

To program the modem firmware loader into the system RAM, do the following steps.

  1. Unzip the modem firmware package and identify the modem firmware loader file (<digest identifyer>.ipc_dfu.signed_<version>.ihex) using the digest identifier retrieved in Reading the modem key digest.
  2. Write the contents of the modem firmware loader file to the RAM.
  3. Write 1 to address 0x4002A004.
  4. Poll IPC.MODEM_CTRL_EVENT and acknowledge the event.
Parent topic: Updating the modem