Safety Bulletin Notice: Mandatory Here4 bootloader update before further flight

Safety Bulletin Notice: Mandatory Here4 bootloader update before further flight

BEFORE FURTHER FLIGHT

Urgent Bootloader Update needed on Here4 If your Here4 doesn’t breath blue on boot, then you MUST do this bootloader update

All Here4 users need to update the bootloader on their Here4 units
BEFORE FURTHER FLIGHT.

For units NOT showing blue breathing at boot

The process for doing this update is as follows:

  • Follow the steps here to update the firmware https://docs.cubepilot.org/user-guides/here-4/here-4-manual#id-3.-firmware-update
  • Once the Update is done, set parameter on Here4 FLASH_BOOTLOADER to 1 wait for either Bootloader Flash OK or Bootloader Unchanged message
  • An updated bootloader boots with Blue Breathing at boot
  • Use the Blue/white Can cable on the here 4 to CAN 1 or 2 on the Cube carrier board

For units already showing solid White LED (NOT breathing)

If you have appropriate SWD connector (6pin JST SUR) to Here4 available, and are capable of doing a bootloader update. Follow the following steps:

For STLink:

For JLink:

Important: For users that are not capable of opening Here4 unit and updating using JST SUR and Debug probe to fix solid white LED, please contact your Reseller for further support. For units that are still healthy make sure to follow primary bootloader update method.

Additional Resources: