Probelm: When I download mBlock in the system of MacOS High Sierra 10.13 or later versions, it shows that no serial driver can be detected and the software can’t connect to Codey, mBot or other hardware.
Reason: The macOS High Sierra 10.13 or later versions require user approval before loading new third-party kernel extensions. mBlock uses CH340 serial driver so it will fail to connect to Codey or mBot if the extension loading is not approved by users.
Find the apple notice at: https://developer.apple.com/library/content/technotes/tn2459/_index.html
Solution:
- Start the terminal: Finder --> Go --> Utilities --> Terminal
2.Copy：sudo kextload /Library/Extensions/usbserial.kext/
3.Paste the line to the terminal and hit Enter. If a command Password shows up, input your computer password and hit Enter. The screenshots are as below:
Paste
Input the computer password and hit Enter
4.Open：Preference --> Security & Privacy --> General, and you will find a notice that System Software from developer “jiangsu Qinheng Co. Ltd” was blocked from loading. Click the button Allow as shown below:
Reminder: mBlock 5 of later versions will be accessible at App Store. Users can download later versions at Apple Store to get the problem solved thoroughly (update time to be determined)
If you are to download mBlock 3, you still have to stick to the solution to solve the driver problem.
