Why isn’t my JDG device recognized after updating to iOS 26.4? Category : Specification / Capacity / Performance The JDG series has been discontinued for several years and supports iOS versions up to 26.3 only. Devices running iOS 26.4 or later are not compatible. We recommend using the device with an earlier iOS version for proper functionality. Is the answer helpful? Related Why is the actual storage capacity of my JetFlash USB Flash drive slightly less than the volume specified on the product's package? What are the differences between USB1.0/2.0/3.0/3.1/3.2? My iPhone did ask me to install the JetDrive Go App when I inserted the JetDrive GO for the first time, but I clicked ignore. How can I download the app again? Technical Support If the answer can't help you, you can contact the Tech Support Department Get Started