General "under-the-hood" optimizations make the touchscreen more responsive and reduce boot-up times.
Newer firmware improves pairing speed and fixes audio metadata issues (e.g., song titles not appearing correctly). dmhz5350bt firmware update link
How to Download and Install the DMH-Z5350BT Firmware Update Updating the firmware on your Pioneer DMH-Z5350BT is the best way to ensure compatibility with the latest smartphone operating systems, fix software bugs, and potentially unlock new performance enhancements for your in-car entertainment system. Official Firmware Update Links Official Firmware Update Links Start your vehicle’s engine
Start your vehicle’s engine to ensure a steady power supply (do not turn off the car during the update). Connect the USB drive to the USB port of your DMH-Z5350BT. On the head unit, navigate to (gear icon). Select the System Settings tab (usually the wrench icon). Select the System Settings tab (usually the wrench icon)