I have purchased UbiSlate 7C+ (Android 4.0.4, 1.0 GHZ, 512 MB, 4 GB with sim support). After 3 days it stops booting. Datawing logo cames and after that it stucks over there. I have logged a complaint but I have got no reply from Datawind. If any one know what happen to the tablet and how to solve the problem, please reply.