Mac USB port detected but won’t upload

Hi @manuelbl

I’ve already tried this. When I remove the SiLabs, I cannot find the board:

$ ls -la /dev/cu*
crw-rw-rw-  1 root  wheel   21,   1 Apr 15 15:19 /dev/cu.Bluetooth-Incoming-Port

By the way, I’m using Mac OS High Sierra Version 10.13.6

EDITED

@manuelbl, I will answer your question (posted in the next reply) in this reply, due as new user I cannot post more than three replies in the same topic.

$ ls -l /Library/Extensions/*USB*
ls: /Library/Extensions/*USB*: No such file or directory

$ ls -l /System/Library/Extensions/*USB*
/System/Library/Extensions/AppleMIDIUSBDriver.plugin:
/System/Library/Extensions/AppleOSXUSBNCM.kext:
/System/Library/Extensions/AppleUSBACM.kext:
/System/Library/Extensions/AppleUSBAudio.kext:
/System/Library/Extensions/AppleUSBCDC.kext:
/System/Library/Extensions/AppleUSBCommon.kext:
/System/Library/Extensions/AppleUSBDMM.kext:
/System/Library/Extensions/AppleUSBDisplays.kext:
/System/Library/Extensions/AppleUSBECM.kext:
/System/Library/Extensions/AppleUSBEEM.kext:
/System/Library/Extensions/AppleUSBEthernet.kext:
/System/Library/Extensions/AppleUSBEthernetHost.kext:
/System/Library/Extensions/AppleUSBFTDI.kext:
/System/Library/Extensions/AppleUSBMultitouch.kext:
/System/Library/Extensions/AppleUSBNCM.kext:
/System/Library/Extensions/AppleUSBNetworking.kext:
/System/Library/Extensions/AppleUSBSerial.kext:
/System/Library/Extensions/AppleUSBTopCase.kext:
/System/Library/Extensions/AppleUSBWCM.kext:
/System/Library/Extensions/AppleUSBiBridge.kext:
/System/Library/Extensions/IOUSBAttachedSCSI.kext:
/System/Library/Extensions/IOUSBFamily.kext:
/System/Library/Extensions/IOUSBHostFamily.kext:
/System/Library/Extensions/IOUSBMassStorageClass.kext:
/System/Library/Extensions/IOUSBMassStorageDriver.kext: