The device worked fine when I went to work after I came back home the screen was all black and I couldnt wake up the device.
Tried hard reset and some other things via USB/PC but nothin worked.
From what you've described, since a hard reset didn't work (to do one, you need to hold down the Power, volume up and volume down buttons for several (I think at least 7?) seconds. If that wasn't what you did, you may not have actually hard reset it - try that instead), I think you may have encountered a hardware-related issue where the display will randomly stop working. Assuming that's the issue, to fix it, you need to remove your tablets back cover, and disconnect and reconnect the display cable and/or the cable for the battery. That specific issue is not caused by or related to any custom firmware, and can occur while running the stock firmware.
See this video on how to do that:
I highly suggest using a plastic tool to remove the back cover, especially if you have a white tablet.