: Users discovered that firmware intended for newer v3.0 boards (like version 5.x) would "brick" the display on older v2.0 boards.
: Devices with V2.0 hardware cannot be updated to V3.0 or higher because the main boards are physically different. owon hds242 firmware
To ensure you have the correct version for your specific device, use the following official channels: Title: The Last Calibration Hardware v2