LED 2 is designated for indicating Bluetooth® connection status, not USB connection status.
When LED 2 is off, it indicates that the device is not currently connected via Bluetooth®. In most cases, this implies that the device has a Bluetooth® signal that is not connected, unless this has been intentionally disabled through configuration.
When LED 2 is on, it indicates that the device is currently connected via Bluetooth®. LED 3 is designated for indicating readiness for Bluetooth® message exchange.
When LED 3 is off, it indicates that the Bluetooth® connection is not yet ready. This could be due to the absence of a secure connection or the non-activation of device-to-host characteristic notifications.
When LED 3 is on, it indicates that the Bluetooth® connection is ready, signaling the establishment of a secure connection and the activation of device-to-host characteristic notifications.
Press and hold the Power Button for two seconds: initially, LED 4 will light up, followed by all four LEDs illuminating for one second. This is followed by LEDs 1 and 2 remaining lit for 2 seconds, after which only LED 1 will be active.
Figure - Power On in Battery Operating Mode
Figure - LED Behavior for Bluetooth® Low Energy (LE) Ready State
If the host is within the Bluetooth® Low Energy (LE) connection range, all three LEDs (LED 1, 2, 3) will be illuminated, as described in Figure 7-8 - LED Behavior for Bluetooth® Low Energy (LE) Ready State.
DynaFlex II Go is capable of being powered off while in Battery Operating Mode only. To initiate the power-off sequence, press and hold the Power Button for two beeps then release. It's important to note that DynaFlex II Go cannot be powered off while connected via USB. If a two-beep sequence is initiated while connected to USB the device will reboot.
Figure - Power Off Device in Battery Operating Mode
DynaFlex II Go must first be paired with the host device before a secure Bluetooth® connection can be established. Follow the steps below to activate Bluetooth® pairing mode:
Press and Hold the Power Button for 4 beeps
Release the Power Button
LED 1 will remain steadily illuminated while LED 4 will begin to blink. When LED 4 is blinking it indicates the device is waiting to pair with the host. It will continue to blink for 3 minutes, waiting to pair with the host.
Figure - Activate BLE Pairing Mode
When the host is pairing with DynaFlex II GO, LED 4 will remain off and LED 2 will power on, indicating the pair is processing.
Figure - Bluetooth® LE Pair Processing
The device will return to Power On status if pairing Succeeds or Fails. LED 2 will power off and LED 1 will remain powered on.
Figure - Pairing Successful/Failed
When the device establishes a connection to the host via BLE and is prepared for secure communication, all three LEDs (LED 1, 2, 3) will illuminate steadily.
Figure - BLE Connected to Host
When the device is disconnected from the host Bluetooth® Low Energy (LE) connection, LED 3 will power off first and after 4 seconds, LED 2 will power off, LED 1 will remain powered on as the device returns to Ready State.
Figure 7-14 - Bluetooth® LE Disconnect LED Sequence
When in Bluetooth® LE Sleep Mode, DynaFlex II Go will conserve battery life by limiting power to non-essential hardware features and entering low power mode. When in Sleep Mode, the device will appear to be powered off, with no LEDs illuminated, see Figure 7-15 – Bluetooth® (LE) Sleep Mode. For information on how to disable this feature, see D998200597 DynaFlex II Go Programmer’s Manual (COMMANDS).
Figure – Bluetooth® (LE) Sleep Mode
