If your system doesn't support OTA or you have a specific firmware file from the manufacturer:
If you’re looking for the latest hardware that comes pre-loaded with the most advanced Caska software: caska software update
This guide will walk you through why you need to update, how to prepare, and the step-by-step process to get your unit running like new. If your system doesn't support OTA or you
Insert the USB into the head unit, go to Settings > About Device > Local Upgrade , and select the USB drive. Key Models to Watch in 2026 how to prepare