- Enable ADB on the RS38 using the following instructions: https://developer.chrome.com/docs/devtools/remote-debugging
- Set default USB-mode of RS38 to PTP (Use USB for in Android settings)
- Install SDK Platform Tools from https://developer.android.com/tools/releases/platform-tools
- Connect phone with USB-cable to PC
- CD into the platform tools and run
./adb devices - A popup should appear on the phone for ADB authorization
- The RS38 should now be listed by the ADB tool
- Continue with the remote debugging instructions in Chrome to start debugging
If the phone doesn't appear in the ADB listing, try another USB-cable or another USB-port on your PC. At my PC a USB C - USB C cable connection was required.