Rk908 Bluetooth Keyboard Manual Link -

: When plugged in via USB, the indicator may flash three times to indicate charging and five times when full. Perspectives on the

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) for 3–5 seconds. The indicator light (typically green, yellow, or cyan depending on the channel) will flash rapidly. : When plugged in via USB, the indicator

Ensure you are in Bluetooth mode rather than 2.4G mode by checking the mode switch (if applicable) or using Fn + Tab to toggle modes. : When plugged in via USB