This is frequently caused by one of the following conditions:
ThePhotoStick Mobile for Android device is not fully plugged into or your Android device
ThePhotoStick Mobile for Android was left plugged into your Android device when not being used and the Android OS put the ThePhotoStick Mobile device to sleep.
ThePhotoStick Mobile for Android app needs to be closed and re-opened.
Try one or more of the following suggestions:
Ensure your ThePhotoStick Mobile for Android device is plugged in fully and securely into your Android device. Some cases for Android phones may be too thick and may prevent the drive from being fully plugged in. Try plugging the ThePhotoStick Mobile for Android device in without the phone case on to see if the drive can fully plug in.
Unplug and plug back in your ThePhotoStick Mobile for Android device.
Try powering off and back on your phone or tablet