Philips SBT30ORG-37 - Manual (Page 9)

you contact Philips, ensure that the apparatus is nearby and the model number and serial number are
available.
No power
• Recharge your speaker.
No sound
• Adjust volume on your mobile phone or PC/Mac.
• Make sure that your Bluetooth mobile phone is within the effective operation range.
• Check if you have selected the correct audio source.
No response from the speaker
• Restart the speaker.