Do not turn off your car engine or disconnect the car battery while the progress bar fills up. Post-Update Troubleshooting
Turn off your car and ensure the head unit is completely powered down. Insert the SD card/USB drive into the unit's port. Turn on your car ignition (boot the radio). alps 8227l demo firmware update free
Use this method if your head unit boots normally and allows access to the settings menu. Preparation Checklist Do not turn off your car engine or
Once the update is finished, the unit will prompt you to remove the SD card/USB drive and restart. Troubleshooting & Tips alps 8227l demo firmware update free
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