Answer
Execute the new SRU_BT in the device.
Check the following boxes in the new SRU_BT:
- Discoverable and Pairable
- Enable Device Under Test Mode
Click the Load Firmware button on the new SRU_BT
After it shows "Firmware Updated", click the Commit button. It will then be able to run test mode and connect with the BT test equipment.
Before leaving the SRU BT program to run the problem again, you need to suspend/resume the device first.