This firmware is only for E30 II 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 is already V1.14, then it needn't this update.
The firmware version of your E30 II could be check at this tool.
What's updated:
Fixed the bug that the F1 filter could not be set normally
Firmware and tools for Windows: Download here (Firmware and tools for Windows: Download here (This update requires a Windows 10 or higher OS with driver installed. Drivers could be download here).
Firmware and tools for MAC: Download here
If you have questions about the update of your E30 II, please contact us before updating this firmware.