Place the firmware file in the root directory (not inside any folders).
: Keep the car running during the update to ensure continuous power. Turning off the car during the process can cause irreparable damage. Step 1: Obtain the Correct Firmware ZWNAV PX6 Carplay Bug Fix! - Tesla Android Update! zwnav firmware
Your system is rock-stable, you cannot afford 30 minutes of downtime, or you have a "no-name" clone unit that claims ZWNAV compatibility (brand spoofing is common). Place the firmware file in the root directory