Help, I updated my tablet_PC with this version during the upgrade and it stopped for half an hour about the file system and did not go ahead. So I had to power cycle my tablet_PC but unfortunately the green light comes on but the screen remains black. Help me, help me recover my tablet_PC. I had the first version with 211_V4 2.1_105 WMT. Please tell me I have some hope to revive my tablet_PC.