Error with Upload and Firmware update



I tried the new version you sent and it worked perfectly!
Thank you so much!


I am having the same problem as rhatt and bennyattack and I only have access to a mac.

Any assistance will be greatly appreciated.



Hi cricketmad23,
Please send me a screenshot of the error message.
You can send it to


I also can’t update my son’s mbot ranger. I use win10
Could you give the working test version?
Thank you


Updated via mBlock v3. Solved )


Good news.
Please feel free to contact us to if you need any help in the future.