JBL JBLBARSBLKAM, Service Manual

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Software Upgrade Method
1.Copy MCU software **.BIN to USB driver root catalog, and rename **.BIN to “JBLBAR.BIN”.
2. Power on the Unit set, change to USB source.
3. Insert USB to Unit set, the Unit set will read the software and grape LED fast flash.
4. Press and hold “power & volume - ” till the grape LED start to slow flash, then start upgrading
5. The upgrade stage will continue 14 - 16 minutes, after finished upgrade, 5 LEDs light
white light 2s, then Unit set will restart.
Software version information check method:
1. Unit set power on and change to BT source, press and hold RC night mode key 5s,
then it will read out present software version, such as “two, one”.
SOFTWARE UPGRADE METHOD AND CHECK INSTRUCTION