Boot into Download Mode without Keypress?

[Vengent]

my volume down key appears to be dead, no springiness response. Already took it apart, and can't get it to do anything while the volume up works fine. Any way to get into download mode for rom changes otherwise?

Other than the download jig. hoping for a software boot into option.

 

[zlazaar]

my volume down key appears to be dead, no springiness response. Already took it apart, and can't get it to do anything while the volume up works fine. Any way to get into download mode for rom changes otherwise?

Other than the download jig. hoping for a software boot into option.

From tablet (you must be rooted):
Enter this two command in Terminal Emulator app :

su
reboot download

From computer, using ADB commands (How to Setup the Android Debug Bridge) :
Enter this in the command prompt :

adb reboot download