Thanks to picchiopc and his blog
I was able to root this tablet using a pc with Linux Ubuntu 12.04 installed.
I wasn't able to see the tablet using Windows 7: maybe because both Linux and Android share the same code from Unix I had the chance to implement the adb service otherwise not usable with Windows.
The procedure is quite complex: first you need to install correctly AndroidSDK
, second you need to properly connect the device
using 2207 as [VENDOR ID] and 0000 as [PRODUCT ID], third you need to create the file adb_usb.ini inside the directory .android in your root. This file must contain just "0x2207" without quotes as text inside it.
Then use this script
to root your tablet VB734Pro with ICS installed.
FYI: Mediacom 840I and Viewsonic VB734Pro have the same motherboard, processor, etc.
BE CAREFUL: connecting the tablet to your pc with Windows can create instability to the VB734Pro, mainly because the internal sd card is unreadable (and inaccessible) to the pc. So expect the screen of your tablet start scrambling a lot when you attempt to connect to your pc via usb cable.
One workaround is to turn off your tablet, unmount your external sd card and then connect it directly to the pc using an adapter or card reader, or try to use Airdroid on the same wifi network.
UPDATE: The only good reason to root this tablet is to use Root Uninstaller, Clean Master and also Root Explorer: I was able to clean up some unnecessary apps and take a look to Google Now, that is not working fine... in this tablet.
I don't recommend the use of any sd booster, like Sd Increase or Sd-booster: it doesn't make any difference at all.
I don't recommend the use of Link2sd: it simply doubles the time when you turn on the tablet!