Download the update package and extract the files (usually including an update.zip or similar) to the of the USB. Installation : Insert the USB into the head unit's OTG port.
often provide specific update files based on your board version. ⚠️ Important Warnings Free vs. Paid: sp9853i 1h10 vmm firmware update free
Due to the ever-changing nature of download links, here are the to use on Google or Bing: Download the update package and extract the files