This is Blue tooth Test Jig & Test Topology.

See following (Fig 01) and remind you...

Fig

Info

01

(#)	Comment
(1)	GND
(2)	PIO11 Pin, to short with (1)
(3)	Jig's COM Port Side to Host / PC
(4)	Jig's Main Board Side Power Supply from USB Port of Host / PC or from USB Adapter.
(5)	if (4) is Power ready, this LED indicates the Jig Power ON

02

(#)	Comment
(1)	Enzytek BLE Golden SPS , as Test Jig
(2)	DUT - BTPay Mini, USB Connected, To Host / PC
(3)	USB Power Supply (to USB Port or Adapter)
(4)	COM Port, To Host / PC
(5)	(Wake Up Button) of DUT
(6)	BLE Indicator of DUT. LED Blinking Behavior as the following Long Period ON/ Short OFF = Scanning Short Period ON/ Long OFF = Connected

Note 01: NO PIO11 Pin is required since New Data Mode Command "^^^<CR>" for disconnection is ready.

Note 02: Tx / Rx Pairing depending on (4) RS-232 Cable Tx / Rx pins has been exchanged.

03

Test Environment, Concept Fig.

(FIg 01)

The DUT (BTPay Mini) must keep in USB connection to PC.
To plug (4) to another PC usb interface to provide Enzytek BLE SPS_C Jig Power,
To check (5) indicator On,RED
To connect (3) to PC COM Port for TS performing AT Commands to the Jig.
PIO 11 short : Short (1) and (2) immediately then OFF the link while TS asking to short "PIO 11" Pin.
How to investigate DUT's blue tooth address ?

Warn that PIO 11 PIN can't contact to any power source path or pins which such invalid shorting it will damage the Jig.
AT Commands for Enzytek Bluetooth module - Enzytek-AT_Cmds_BLE_Golden_SPS .msg

Item	Date	Comment
Example 01 Jig Test Log	22 Nov 2021	See the attachment