Usually it is one of the following two issues:
1) Did you ensure that your FTDI chip is installed correctly? You should see an additional two serial com ports like below.
2) Did you ensure that your tag is in HCI (or download) mode by setting all switches on SW4 to ON?
Please refer to the below for more details.
Your serial ports are OK. And you should use the first one, COM17.
Your power supply settings and SW4 configurations are correct too.
I have included my own make target for hello_sensor and you can try it out. Do a clean build.
hello_sensor-BCM920736TAG_Q32 BT_DEVICE_ADDRESS=4040A13868A2 download UART=COM11
If all failed, then your EEPROM could be corrupted. Do a recovery procedure. Refer to the below doc.
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Assuming you have followed the recovery instructions diligently, it is a possibility... My Cypress Beijing colleague will get in touch with you shortly.