The update does not start up on my Big Sur. I have attempted to update the Silabs drivers, but the system seems to be rejecting loading the driver. Thoughts?
This is what worked for me:
1. Make sure the SiLabs driver has been deinstalled before performing this.
2. Reboot into Recovery Mode (hold Command-R until the Apple logo displays).
3. Log in with your password.
Select Utilities>Terminal from the drop down menu.
4. In Terminal, enter the following command:
/usr/sbin/spctl kext-consent add 52444FG85C
5. Verify success with the following commands:
/usr/sbin/spctl status SHOULD RETURN "Kernel Extension User Consent: ENABLED"
/usr/sbin/spctl kext-consent list SHOULD RETURN "Allowed Team Identifiers: 52444FG85C"
6. Now reboot into Big Sur and install SiLabs 5.3.5. Reconfigure Station Comms in WeatherCat and you should see the SiLabs 5.35 listed.
SiLabsUSBDriver:
Version: 5.3.5
Last Modified: 2/25/20, 5:20 PM
Bundle ID: com.silabs.driver.CP210xVCPDriver
Notarized: Yes
Loaded: Yes
Get Info String: Version 5.3.5
Obtained from: Identified Developer
Kind: Intel
Architectures: x86_64
64-Bit (Intel): Yes
Location: /Library/Extensions/SiLabsUSBDriver.kext
Kext Version: 5.3.5
Load Address: 18446743522366386000
Loadable: Unsupported
Dependencies: Unsupported
Signed by: Developer ID Application: Silicon Laboratories Inc (52444FG85C), Developer ID Certification Authority, Apple Root CA