You need to manually download the previous version of TPControl for Android from our href="http://www.touchpanelcontrol.com/catalog/product/download">Downloads page. Assuming all information for recommissioning the device is in TPCloud, uninstall the current version first and then on device browse to href="http://www.touchpanelcontrol.com/">http://www.touchpanelcontrol.com/ then click on href="http://www.touchpanelcontrol.com/catalog/product/download">DOWNLOADS and use the link for TPControl for Android.apk - for Android 4.x+ devices (v2.6.4.0) to invoke download to the device. Then invoke installation of the downloaded file (you might be prompted to enable installing from "Unknown sources", then after installation launch TPControl. To avoid the device the updating to the current Google Play version (v2.7.0.0), I would suggest turning off "Auto-update" for TPControl in Settings for the device.