Quote from Ddren on September 17, 2019, 12:41 pm

This software is free.

DESAY RCD330 PLUS 6RD 035 187A  support aux, sd card, usb ,rear camera, mp3/wav/flac/ape/ mp4/rmvb etc..

The reason why I have not been able to send it out is that my English is not good, and some contents are inevitably translated incorrectly. 

Another is that its installation requires a few more steps, and it needs to be explained together with the picture and the text to be installed!  I am worried that once someone can't understand my explanation, causing system crash, the head unit becomes a brick and will blame me.

Therefore, I can only guarantee the following steps, which is successful in the head unit of my sales. Now I am also sending it to you free . 

1. First, download  onekey to desktop for Desay 187A

[loginview]download1  [/loginview]

2. Second, download RCDMenu_v2.22_EN

[loginview]download2[/loginview] 

RCD 330 - Desay A (with Windows CE) install guide (come from Internet).

Need

SD Card 1GB - 8GB （Cannot use SD card of class10, usually larger than 8GB）
Preferable Power Supply/Computer Supply for having the RCD on the bench.

Procedure

1 Unzip the two compressed files, open onekey to desktop for Desay 187A folder,  Copy all files  to an SD card (preformatted in FAT, it is believed that the card should be no more than 8Gb). Copy Install_RCDMenu_v2.22_EN folder to the SD card.

Insert the card into the radio, press and hold the SETUP button until the Service mode menu appears, select the first item Software update / versions

in the next window, select Update Software

then (be careful) in the menu, select the second item Update NAVI

Software Update window will appear

and the radio will restart ... There will be a window with a countdown of time, we wait about 15 seconds before the appearance of the UpDate is Complete window . Please Reboot 1 .

2 Next, you need to overload the radio with a long hold on the power button. The next time you load the radio, it will turn on in the normal operating mode.
Windows
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Press "Media" botton 3 seconds, Go to the WinCE desktop. Open the Explorer,  to open \Install_RCDMenu_v2.22_EN\install.msc file, and will install RCDMenu_v2.22_EN. Restart the head unit after the installation.

After the installation is complete, Install_RCDMenu_v2.22_EN folder  and onekey to desktop for Desay 187A  all files can be deleted. Keep "!!!Silent" folder.

EasyConnected app for Android phone.

Support Android 8 system, not compatible with Android 8.0 or higher system.

For Apple phones, you need to search for "亿连驾驶" in Apple's app store.

[loginview]Download3 for Android phone app[/loginview]

[loginview]Iphone app store for it[/loginview]

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Red Menu
copy the IMG folder (with the replacement of files) from the map to the radio on the path \ ResidentFlash \ navigation \ app \ res

[loginview]download4 RedMenu [/loginview]

 

Language (I have not tested ，Please back up the two original folder before copying)

Rename files by changing the last 2 letters to en or cn (depending on which language in the radio tape recorder we want to replace)and copy to the folder \ ResidentFlash \ navigation \ app \ language

& change your flag \ ResidentFlash \ navigation \ app \ res \ img \ Icons \ General \ Flags \

[loginview]download5 German+English   
download6 Russian+English   [/loginview]

Others do better, you can learn.

https://www.team-bhp.com/forum/car-entertainment/182719-vw-polo-vento-replaced-stock-rcd320-rcd330-plus-rear-view-camera-installation-guide-14.html