OK, To start off let me say, using the "Turn On USB Storage" option is only for transferring files like music, videos, pictures, .apk files, PDF -or- MSWord documents & so on, back & forth between the tablet & PC, just in case you didn't already know, lol... It has NOTHING to do with any of the programming whatsoever!
Now, that being said, what you need for your PC/Laptop to be able to access the, “Oh so powerful programming options”, is the "Android ADB Drivers". You need these so the PC recognizes the Vi40 as "Android ADB Interface" under the "Android" branch of tree in device manager. (See picture. Also note that under "Portable Devices" branch it list Onda_MID & my tablets' SD card. That is where the "Turn On USB" option comes into play. It lists it there.)
Getting Started
**THIS IS A MANDATORY/ MUST DO PROCEDURE BEFORE DOING ANY PROGRAMMING OF ANY KIND !!!**
First & foremost to get the ADB Interface (Android Debug Bridge) working correctly, you NEED "JAVA JDK" which is an android developer programming tool. Those can be found here at this link:
Take note if you are running 32 or 64 bit system. On that page see where it says "Java SE 7u4" Click Download. On next page, click "Accept License Agreement". Then download it for either your 32bit or 64bit system. Click by where red arrow is, the file download is listed in black bold lettering. After it finishes downloading, install it as an administrator.
On another post online I read, "Install the 32-bit JDK first, then the 64-bit. Note — Technically you can just use the 64-bit version, but you will occasionally get errors about the 32-bit version (x86) being missing. Best bet is to install both. Both Java 6 and Java 7 are supported."
**If you want to, feel free, but i just used the 64bit JDK installer for my 64bit system.**
Now you need the "Android development kit for Windows" to accompany JDK & you get that at the following link:
I used the "installer_r18-windows.exe" (Recommended) file. As i do not know full codes, script, & entire programming. Just telling you what worked for me. :-) After the installer downloads, run it. If you haven’t installed the JDK packages, the installer will say that they are required and WILL NOT let you proceed.
The installer then automatically launches the "Android SDK Manager" and prompts you to install a number of default packages. Of those listed, only the first two options (Android SDK Tools and Android SDK Platform Tools) AND the Google USB Driver package (located in the Extras tree, near the bottom of the list) are needed. After you have selected those, click Install (x) Packages. (X= # of packages.) A new window will appear – any items without a green checkmark require that you select them, then click Approve/Accept before you can proceed. After the process has finished, allow the Manager to restart the ADB process, then close the window.
Now on you tablet, "Enable Debugging Mode" and plug it in to your PC. Windows most likely still will not recognize it yet as "ADB Interface". But, open Device Manager and ensure that the “Android Phone” category at the top has an entry called "Android Composite ADB Interface" (See picture below). Now look for the plain "Android" device with a yellow exclamation point (!) next to it. (NOT pictured.) This is the Vi40. That is what we will update the drivers for next. In order to do this you must first "Disable Driver Signature Enforcement", otherwise windows will only tell you it cannot install the driver for a number of reasons, even if it recognizes it, you WIL GET AN ERROR upon installation... Please refer to "Driver Signature Enforcement" tab at the top of this page, in the menu & click on it to continue installation of the Onda drivers..... DRU.
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