It is not shown if the Bluetooth function of the Pocket GT unit is disabled (the Bluetooth indicator is unlit).
Hold down the [Bluetooth] button until the dot in the lower right corner of the display blinks rapidly, then make the Bluetooth settings on the mobile device properly.
When detected by the mobile device, the following indication appears.
Bluetooth Audio: POCKET-GT Audio
Bluetooth MIDI: POCKET-GT MIDI*
* Do not connect to the “POCKET-GT MIDI” in the Bluetooth setup screen on the mobile device when using BOSS TONE STUDIO for Pocket GT.
For details on the procedure, refer to “Using BOSS TONE STUDIO for Pocket GT” (PDF) or related Q&A “Cannot connect to the dedicated BOSS TONE STUDIO for Pocket GT app.”