Bluetooth not available & Debug or Reset Option not available..!!!

About this Mac>System Report?Hardware>Bluetooth, does it show there, something like this?

  Apple Bluetooth Software Version: 6.0.14d12

 Hardware, Features, and Settings:

 Name: im19

 Address: 14-7D-DA-3E-30-4C

 Bluetooth Low Energy Supported: Yes

 Handoff Supported: Yes

 Instant Hot Spot Supported: Yes

 Manufacturer: Broadcom

 Transport: UART

 Chipset: 4364B0

 Firmware Version: v67 c4398

 Bluetooth Power: On

 Discoverable: Off

 Connectable: Yes

 Auto Seek Pointing: Off

 Remote wake: On

 Vendor ID: 0x05AC

 Product ID: 0x007B

 HCI Version: 5.0 (0x9)

 HCI Revision: 0x112E

 LMP Version: (0x9)

 LMP Subversion: 0x1043

 Device Type (Major): Computer

 Device Type (Complete): Mac Desktop

 Composite Class Of Device: 0x380104

 Device Class (Major): 0x01

 Device Class (Minor): 0x01

 Service Class: 0x1C0

 Auto Seek Keyboard: Off

Then it appears to have died or cable problems.

https://www.amazon.com/TP-Link-Bluetooth-Receiver-Controllers-UB400/dp/B07V1SZCY6/ref=sr_1_2_sspa?

The Amazon link is just in case your BT has died, to give an alternate idea, I believe this one worked great for Macs