If your flash drive is detected, but you still have the trouble accessing the content on the drive, you can run First Aid: click on drive > hit First Aid > run the process to repair the error on the drive. You can open Disk Utility app to check if the USB flash drive is showing up. Reboot your Mac and insert all USB devices, including USB flash drive.Press the power button 5~6 times to completely release the static electricity of the motherboard.Unplug all USB devices and shut down your Mac.Connect the USB device to another Mac computer.Inspect the device for any physical damage or wear.As for USB ports, they can become dirty and worn over time. The damage of USB device would cause flash drive not showing up on Mac, particularly if you’re using a cheap and low-quality product. Give them a try before you buy a new USB flash drive or upgrade your system. The following methods can solve most USB flash drive not showing up on Mac issues. How to Fix USB/Thumb Flash Drive Not Showing up on Mac?Īccording to the reasons, you can find the corresponding solutions. Old operating system can’t recognize the flash drive (update the system).USB firmware is corrupted (buy a new one).USB flash drive is damaged (buy a new one).Main possibilities why USB flash drive not detected or recognized: Most problems of flash/thumb drive can be solved effortlessly. When you are stuck on the undetected USB flash drive, investigate each of reasons. There are several root causes that would lead to USB flash drive not showing up on Mac. Different recovery modes to solve data loss in different situationsįree Download Free Download Why is USB Flash Drive Not Showing up on Mac?.Preview flash drive files before recovery.Recover all sorts of your files, including photos, videos, music, emails, etc.Restore data from a deleted, formatted flash drive.Best Data Recovery for Mac and Windows Recover Data from Flash Drive Quickly

Mac installer usb not selectable