1. Download the latest firmware from InHand’s official resource center (https://www.inhand.com/en/resources-center/#/EnterpriseNetwork/InODU/ODU2002). 2. Log in to the ODU2002’s web management interface. 3. Navigate to the "System" > "Firmware Update" section. 4. Upload the downloaded firmware file and follow the on-screen prompts to complete the update (do not power off the device during the process).