I downloaded apk file of DroidReader from here http://slideme.org/en/application/droidreader and copied it to to directory of my tablet System/APK/COMMON where are other APK files.
I could see the copied file there in the OS. Then I disconnected USB and look to that directory in tablet, but the droidreader.apk is not there. Am I doing something wrong?
Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.
This video is in connection to the article "The case of a missing mobile phone (https://www.experts-exchange.com/articles/28474/The-Case-of-a-Missing-Mobile-Phone.html)". It will help one to understand clearly the steps to track a lost android phone.
When you create an app prototype with Adobe XD, you can insert system screens -- sharing or Control Center, for example -- with just a few clicks. This video shows you how. You can take the full course on Experts Exchange at http://bit.ly/XDcourse.