Software upgrade instruction & Reset Procedure
Restore factory setting
1. Power on, Hold down<PLAY> & <VOLUME +>keys on the top panel about 10 seconds.
2. Then, the unit will power off, the reset successful.
3. After factory settings restored, the unit will reboot automatically.
Check soft Version:
1. Power on, the unit is nothing input(No BT connection / No USB play / No AUX IN input).
2. Hold down <BASS BOOST> & <VOLUME - > keys on the top panel about 2 seconds.
3. The unit will voice playback software version.
4. The unit will exit the SW version speech mode automatically.
Software Upgrade via USB
1. Copy the firmware file (XXX.bin) into a USB flash drive.
2. Insert the USB flash drive to the set.
3. Hold down <VOLUME+> & < BT > keys on the top panel about 10 seconds. The right woofer LED will show red
4. Starting to upgrade, The right woofer LED color to white. White LED will display the upgrade progress.
5. Then, the unit will power off , the upgrade successful.
6. The unit will reboot automatically.