However, a positive ANA reading alone does not indicate an autoimmune disease. 1  The prevalence of ANAs in healthy individuals is about 3 - 15%. 2  Some medications can cause a positive ANA. 3  Other conditions, such as cancer, can cause a positive ANA.
Driver is unavailable. There is no user action in the Devices page, which displays a status message that says âDriver unavailableâ. The user needs to get support from the device manufacturer. Driver error. There is no user action in the Devices page, which displays a status message that says âDriver errorâ.
Answers. 1  If you plug in your device. 2  I just did that and I got List of devices attached and an empty list- my device isn't appearing at all! 3  The fact, that adb devices gives back an empty list, means that there is something wrong with the driver.