Hello people, My nice has a Yuandao N101 II Dual-Core that I gave to her last summer. After she installed a game the systems started to become slow, and no sound. For what she told me it was a game that was hacked and had a virus. Ok I made a factory reset. No luck no sound. I've found this forum and start to lock for some answers. I rooted the table and I think not 100% shore but after it stoped to auto-rotate. And Yes the function is active. At this moment I've installed several ROM my latest is Skandy Evolution. But no luck, no sound and no auto-rotation. I've even open the tablet and tested the speaker but nothing and nothing on headphones. Anyone has any idea of what is happening. Thanks to all.