M3 Series Hardware Manual
Page 21
... the adaptor for a long time and built-in battery was overly discharged Press Reset button to turn the power off . Troubleshooting Before contacting customer service, review the steps below to solve simple problems. If you still suspect something wrong with this unit, immediately turn the unit on. No Sound Volume may...
... the adaptor for a long time and built-in battery was overly discharged Press Reset button to turn the power off . Troubleshooting Before contacting customer service, review the steps below to solve simple problems. If you still suspect something wrong with this unit, immediately turn the unit on. No Sound Volume may...