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If the H53 device you use fails to open, and always be at the logo interface.
Pls update the system program !!
1. Connect " KEY1" or " KEY2 " to ground, then update it.
Here to download the updated firmware.
Here is updated video for your reference.
2. After updating，pls reboot the car radio. Here is video.
3. After a successful upgrade, files may be lost. Click here to download and install again.