Hello Fellows, Apparently I installed some app which is conflicting with the software. Sometimes the tablet starts, and when it does, a few seconds later the massage appears "Sorry! android.process.acore unexpectedly stopped. Force close". And it reboots, and the same thing happens over and over. Sometimes it only stays on the Android logo loading, and it reboots over and over. I want to do a factory reset to erase the conflicting app I must have installed, and to format the system and start clean. How do I do that? I've looked at some posts showing combinations of buttons but that hasn't worked for me. When I try that the screen goes black and nothing happens. ADB isn't working wither because the PC won't recognize the tablet. Any solution?