Insert the USB into the head unit. A prompt should appear asking to "Upgrade." Confirm to begin the process. Do not turn off your car during this step. Method 3: Updating Core Apps (ZLINK, YouTube, Maps)
For ZLINK updates, go to the ZLINK app, enter its settings, and check for an internal update button.
Open the Play Store, tap your profile icon, and select Manage apps & device > Updates available . android yt9216bj00012v001 update full
If the head unit doesn't recognize the file, create a folder path on the USB: mnt/media_rw/udisk and place the update.zip there.
Once the download completes, tap "Update" or "Restart." The unit will reboot and install the new firmware automatically. Method 2: Manual Update via USB Insert the USB into the head unit
If the online update fails or says "up to date" despite bugs, you can perform a manual flash. Use a USB drive formatted to FAT32 .
If your steering wheel controls are failing, go to Factory Settings (usually code 8888 or 1617 ), select CANBUS , and check for specific MCU updates while connected to Wi-Fi. How To Update Your Android Head Unit + Apps Method 3: Updating Core Apps (ZLINK, YouTube, Maps)
Go to Settings > System > About Device .