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indicator blinks blue continuously.
Bluetooth transmission protocol switch (standard HID and SPP):
Bluetooth protocol switch feature is provided to ensure that different
devices can be successfully connected, because some Android devices
may need to switch the serial protocol and Apple devices only support
HID. The protocol switch bar code is shown as follows:
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6.3 Scan settings
Scan status (LED indicator: green):
Scan succeeded: the indicator flashes green once, the buzzer gives off a
beep and the vibrator has a short vibration.
Scan failed: No prompt
Scan the bar code below to turn on Vibrate:
Scan the bar code below to urn off Vibrate: