If there is no response to the device connection, the reason might be that your device has no signal. Specific reasons include: BLE or ANT+ is disabled, resulting in that the device cannot be detected and connected. You may enable the Bluetooth or ANT again to re-connect the device. The device is powered off, causing that the device has no signal and cannot be connected. You may replace the battery or check whether the device’s power indicator is on and reconnect. The BLE on Onelap is disabled, resulting in that signal cannot be detected and the device cannot be connected. You may enable the BLE on Onelap to search for the device to connect. ANT stick fails. Please re-insert the ANT stick to connect again.