This is a previous question rephrased:
How can one prepare for the restoration of an Android tablet after, say, a firmware update (in this case Lenovo, but the question is more general in nature) went awry? For Windows computers you can create a system image, to be used when there's trouble, but there doesn't seem to be anything like this for Android. What can you do up front to have a solution handy when an Android tablet remains frozen?
Read more: Preparing for Android system trouble?
