FYI, when Jonny said to avoid firmware updates, he was correct. My torque sensor failed on my Toseven DB01 and the update process was very difficult. Much of the problem was caused by my inability to understand the instructions. In my defense much of the documentation is in Chinese characters.

A more tech savvy person would have an easier time. I'm still having trouble and I'm awaiting a response from the folks in China.

Thanks

Mark