I programmed my BLE device using an FTDI cable and Tera Term terminal emulator. The syntax I used was AT+NAME=TK11055. I discovered after assembly and powering up that the syntax was wrong. Apparently, it should have been AT+NAMETK11055 omitting the “=”. My BLE is named "=TK11055". Too much trouble to change it. I also desoldered the 6 pin header and wired from the thru holes to the pins on the audio adapter. Was a little paranoid about potential shorts between the header pins and the audio adapter. I guess I could of put a piece of shrink wrap around the pins. That would have been easier.