This firmware is only for E30 II lite and is NOT applicable to any other models. If this firmware is flashed to other models, it will immediately cause the product to be unusable and unable to repair by yourself. If the firmware of your E30 II lite is already V2.01, then it needn't this update.
The firmware version of your E30 II lite could be check at this tool.
What's updated:
Fixed d-3 error code and other known problems
Firmware and tools for Windows: Download here (This update requires a Windows 10 or higher OS with V4.82 or higher drivers installed. Drivers could be download here).
Firmware and tools for MAC: Download here
If you have questions about the update of your E30 II lite, please contact us before updating this firmware.