ADATA DashDrive Durable UD320 OTG Review
As I said, not all Android smartphones support OTG devices, even if the guys from ADATA claim that their device is compatible with any Android 4.q or higher device. In order to see if your device can work as an OTG host you can use one of the apps from Play Store specially made for this purpose (USB OTG Checker, etc).
Another thing – if you want OTG to work on your smartphone you must make sure that the USB Debugging option in the Developer menu is ticked off. If your Developer menu is not unlocked, go to the “About” section in the settings, search for “Build number” and tap it 5 times to unlock the Developer menu.
Once you have disabled USB Debugging you can connect the device to your micro SD port. On most phones, under the “Storage” section from Settings you will find a USB section after you connect the device. The phone will either mount the USB stick automatically or you can mount it manually from settings. If that does not work or you simply don’t have such an option in your menu, you can use an app like StickMount to manually mount your USB OTG device for the first time (the app can do it automatically after that). Be careful though, StickMount, like most USB mount applications, requires a rooted device.
Once the stick is mounted you can browse it using your phone’s File Manager. If the standard File Manager does not see the newly added USB memory, you can use a more advance program like ES File Explorer. You should know that in most cases only FAT32 formatted USB sticks can be used with an OTG adapter so you cannot use files bigger then 4GB.