Sorry for the previous post here. I've made a seperate topic for it (Venstar V140D A33 tablet: How to get rid of the preinstalled malware of Stock ROM) so as not to high jack your topic.
I made a TWRP for A33, A23,A20 and A31s models over on TechKnow . Some of them are posted but I think I have yet
to post all of them on the Public Downloads... I will make an effort to get them all posted soon. Offhand I do not
recall the specs I used though I am thinking all used gslx Touchscreens.. I will post here again the specs of the Tabs
they are for and a link to where they are posted once I am sure they are up ... The delay in posting them has
been the installer, I was working with another person since I have no A33 on making an installer that will
work on all of the tab models from ADB, also I am working pretty heavily on A31s Dev at present and have
allowed my other projects to fall behind even though some are essentially finished as in this case.