Here4 Safety Bulletin

Here4SafetyBulletin.md

Urgent Bootloader Update needed on Here4

All Here4 users need to update the bootloader on there Here4 units. 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

For units already showing White LED

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

For STLink:

• Use this bootloader file and flash at address 0x08000000

For JLink:

• Use this bootloader file use JFlashLite to flash.

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:

• Batch Update Tool
• Here4 FW Release 1.15.0