title: Same serial number on several android devices. Adb is useless. How can I change the serial number?
body: <p>I bought a lot (500+) cheap China tablet with AllWinner processor and Android 4.0.3. All tablets expose the same serial number. I can't deploy my application simultaneously on several devices (with a USB hub) using ADB.EXE because it can't distinguish them.</p>
  
  <p>I'm thinking about a pre-deploy process that change the internal serial number, is it possible? Where is the serial number stored?</p>
  
  <p><strong>Note: tablets are rooted</strong></p>