Pumpkin CN27 Android 12 car stereo volume is too high when navigating

[Jammy]

Q: Pumpkin CN27 Android 12 car stereo volume is too high when navigating

Solution countermeasures:
1. Adjust the navigation volume according to the following operation video.
Video operation reference:

https://mega.nz/file/6fgmnBZS#-d02E17-M ... y11ynW-dtU

2. If you can't solve the problem after adjusting the volume, you can try to reinstall the system
reinstall the system operation reference:

https://mega.nz/file/WTxlFYiC#ZzhmMgrrP ... XKFH8HPa2A


Steps to install the brushing software：
You can install the updated firmware by following these steps and the attached photos:

https://mega.nz/file/WTxlFYiC#ZzhmMgrrP ... XKFH8HPa2A

1. Please kindly decompress the updated file after downloading it from PC.
2. Copy the folder to the root directory of a blank USB drive. Insert the USB drive into the USB port.
3. Then click "Settings" on the main menu and go to "System" settings.
4. Click the "System Update" button, select "Erase data and format flash memory!", then click the "Install" button to update the system.
5. The system may start to update. This will take about 3 minutes for the software update. The radio will then reboot. When it goes to the main menu, the upgrade is complete. You can then unplug the USB drive. (Note: You cannot disconnect the power during the software upgrade and system reboot.) .