steps
what you'll need: USB drive (FAT16 or FAT32) or Sidus Link OTA. Menu: System Menu, then USB Mode, then select Update.
11. Download firmware from aputure.com/downloads/#ls-300x.
22. Copy firmware to root of FAT16 or FAT32 USB drive.
33. Insert USB into the control box USB port.
44. Navigate to MENU, then USB Mode, then select the update shown on screen.
55. Do not unplug power or USB during the update.
66. Fixture restarts automatically on completion.
77. Alternatively use OTA via Sidus Link app.
GotchaNo Firmware Releases section in LS 300x help center navigation. Only a general update procedure page exists. GotchaIf power fails during update, leave USB connected and power back on. Fixture will resume update. GotchaVersion number could not be confirmed.