There are multiple approaches you can try to bind the device to the unsigned driver for testing purposes.
1. Disable driver enforcement in startup settings: How to Disable Driver Signature Verification on 64-Bit Windows 8 or 10 (So That You Can Install Unsigned Drivers)
This will disable the signature check until its enabled. This is the easiest way as multiple times configuration is not needed and its a simple process.
2. Test signing the driver for your PC: How to Test-Sign a Driver Package - Windows drivers | Microsoft Docs
Follow the complete procedure in the above link.
You need to put the PC in test mode after the driver is test signed to load the driver to the device.
Follow step 3 in this link to put PC in test mode: https://windowsreport.com/driver-signature-enforcement-windows-10/
Note that when using this method, if you alter the .inf file after test signing it. you need to regenerate the catalog and sign it again using the certificate.