Keep the original front USB while adding a hidden rear USB port for a cleaner OEM-style setup. No more messy front-panel cables — enjoy a more concise, neat, and factory-like interior appearance.
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How to activate engineering mode of RCD330 PLUS Desay 187B
#1 · January 7, 2020, 3:19 am
Step
1,Press the "setup" button and select Copyright Information
2. Press and hold the "Media" and "Phone" buttons together at same time, if no, pls long time Press and hold the "Media" and "Phone" buttons together for more than 30 seconds to activate the hidden engineering mode.This method is only suitable for RCD330 PLUS Desay 187B.
The main menu is all Chinese, I think I will try my best to translate it into English.
