Upgraded the Firmware to the new version (Android) and when I performed the preflight checks and recalibrated the compass as requested, performed lift off and checked controls, I noticed I could not rotate in either direction. I could ascend and descend and move backward and forward but I could turn or rotate at all. Landed back down and done a few more checks but could not find anything that would cause this. Can anybody help or explain what is going on? Is this a firmware issue? Thanks!