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1. You can format the SD memory card while the system is operating in
your car. Press and hold the mic off/on button for more than 5
seconds, the format will start with a short beeping sound.
2. When formatting, 2 single scale beeps will sound.
3. If the format is completed, the beep sound will stop and the product
will re-boot automatically.
* Once the format is completed, all data in SD memory card will be deleted. So, please make
sure that all necessary files to keep have to be backed up in another storage device.
* Even though SD memory card is formatted, all user setting values will remain same as
before without change.
How to format the SD memory card- method 2