I have this problem, too, help me please!!! My tablet died, i've tried starting it up with or without battery, tried all button configurations for restore or anything, the only response i get is when plugged in to my computer + volume up, it sounds like something connected into the computer but only on device manager apears "Cloverview". In every other way is completly dead.
Now the question is, is there something i could do to make it live again or I should give her an honorary funeral?
ps: english is not my native language, so, sorry if i've wrote something wrong.