Now I consider myself above average on pc/tablet/phone blah blah knowledge. This is my second tablet and my first I unlocked and rooted and my iphone is jailbroken so I have some knowledge. Now the problem I am having is my secondary tablet is a Ultratab Jazz C925 android 4.0 baseband 1.5 build number 98v2-z1-h1-h01-2659.20121012(version1). One day I am not sure what I did(this was a while ago and this is why this one is my secondary tablet) my tablet restarted and all the memory was gone. Now I don't mean I installed to many apps. It was factory reset and the total space now shows 0.00b with the apps taking 37.32. Now I should have somewhere around 700-1000 Megs with no apps installed. I have tried doing a factory restore clearing the cache and I have recently even tried to say screw it and making the default app installation location the SD card but I can't get anything to work. I have also tried installing a couple custom Roms to see if this would like reset everything. I have a feeling this might have all happened when I tried to change the partitions due to the fact the memory was set to have half internal memory and half internal SD card(was very inconvient). Does anybody have any ideas on how to fix it.