Dec 21, 2020 • Filed to: Solve Mac Problems • Proven solutions
Normally when you plug in an external hard drive to your Mac's USB port you will see it appear on the desktop (aka mount on the desktop). You can also see it in the Finder in the left column under. Choose Apple menu About This Mac, click Support, then click Specifications. Check the System Information app for more details, including about USB devices connected to USB ports on your Mac. Select USB in the sidebar, then select a USB bus on the right. Get the best performance from your USB devices. May 25, 2013 What kind of USB device is it - stick/external drive/camera, etc? In FinderPreferencesGeneral tab you definitely ticked 'External Disks' or Hard Disks? What happens if, also in Finder PrefsSidebar tab you select External Disks or Hard Disks - does it show in the sidebar? If not, try restarting with the USB device plugged in - any luck?
Watch USB Movie on mac. First off, connect your iOS device to your Mac using a compatible USB cable. Now, you need to hold down the Option key on your Mac and click on the Apple menu. Next, click on System Information/Report. Next up, choose the USB option in the left sidebar. Under USB Device Tree, you should see your iPhone or iPad.
Do you own an Apple Mac computer and you noticed after a while that the USB accessories have been disabled? Don't be perturbed because in this article we will show you how to enable USB accessories and get it working again.
If USB accessories are disabled, you will no longer be able to access saved data in your flash drive. A disabled accessory may be caused by an ignorant mistake on your part or a system malfunction. Regardless of whose fault it is, a disabled accessory won't serve your interest in any way. Bearing this in mind, with the aid of the system management controller (SMC) you can enable USB accessories in your Mac computer once again.
About the SMC does and Why You Need IT?
Here are some of the functions performed by the SMC
- Activating power button when pressed
- Responds to opening and closing lids in MC notebooks
- Manages battery power
- Thermal management
- SMS (Sudden Motion Sensor)
- Light sensing (Ambient)
- Keyboard backlight
- SIL (Status indicator management)
- Video external source selector
How so you know when you need an SMC reset?
- When your Mac computer operating system is running at a very high speed even when it is not performing many tasks at once
- Inconsistent keyboard backlight
- Inconsistent indicator light
- Unresponsive ambient light
- When it doesn't respond to closings and openings
- Unexpected sleep or shutdown modes
- Improper charge
- Slow response to commands
- Failing to recognize the external drive
- Doesn't respond when you press the power button
Before you reset the SMC
Before you decide to reset your Max system to resolve a disabled USB accessory try all these steps first
How To Show Usb On Mac Catalina
- Press down the power until it shuts down
- Tap the command option then the Escape option to quit unresponsive applications
- Put Mac in sleep mode by clicking the Apple menu then click sleep. Once the system is asleep wake it up again
- Restart Mac by clicking Apple Menu
- Shut down Mac by clicking Apple menu then tap the power button again to switch it back on
If Mac is having Power issues follow these simple steps
- Unplug adapter for a minute then plug it again
- Click Apple menu to shut down
- After shutdown remove battery then re-insert it again
- Press the power button to turn the power back on again
If the accessory is still not enabled you may need to reset the system. Follow these steps
Reset on MacBook notebooks
To reset Macbook, check if the battery can be removed. If the battery can't be removed just
- Click Apple menu and shut the system down
- After the shutdown holds down the Shift + control option on the built-in keyboard and presses the power button at the same time. Hold all keys for 10 seconds. If your Macbook is a Pro the touch ID is also the power button.
- Release keys held down
- Press power key to turn Mac on again
If the battery is removable
- Shut system down
- Remove the battery
- Hold down the power key for about 5 seconds
- Fix battery back
- Press power key to turn the system back on
How to reset Mac desktop computers SMC
For Mac Pro, Mini, Xserve, and iMac follow these steps
- Click menu then shut down
- With for a few seconds
- Plug cable back to a power source
- Wait for some seconds then press the power key
If your system is an Xserve computer and it has failed to respond shut it down using commands.
How to reset SMC in Macs with Apple T2 Security Chip
- Click Menu then shut down
- After shut down hold down power for 10 seconds
- Release the button and wait for some seconds
- Press power key again to turn Mac back on
If this doesn't work do this
- Choose menu then shut down
- Unplug power cable
- Wait for some seconds
- Plug cable back to a power source
- Wait for five seconds then switch Mac on
Mac notebook with the T2 chip
- Choose the menu and shut down
- After shutting down the press and hold the power key for about 10 seconds
- Release the key and wait for some few seconds
- Press power key to time Mac on
If this step does not work follow these steps
- Choose the menu and shut Mac down
- After shutdown press, the Shift key left option key and left control key. Hold them down for 7 seconds. While these keys are held down hold down the power key for 7 seconds also
- Release all keys at once. Wait for a while
- Press the power button to turn Mac on
How To Show Usbs On Mac Desktop
All the steps listed are very effective tips you can use to enable your USB Accessories on your Max Computer. It may take you some time but try to follow all the steps just as they are listed and you can be sure that your Mac system will work as well as before again.
Final Tips: Recover Deleted or Lost Files on Mac
How To Show Usb On Mac Os
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Symptoms
Symptoms such as these could mean that a device connected to the USB-A , USB-C , or Thunderbolt 3 (USB-C) port on your Mac isn't getting enough power:
- A message says that the device needs more power, the operation can't be completed, or USB devices are disabled until you unplug the device using too much power.
- An operation that requires more power doesn't work. For example, writing to disk requires more power than reading from it.
- The device doesn't turn on or isn't recognized by your Mac.
Solutions
- Use your device as a self-powered device or connect it to a powered USB or Thunderbolt 3 (USB-C) hub if possible.
Self-powered devices get power from an electrical outlet or their own battery. Bus-powered devices get power from the device they're plugged into, such as your Mac. - Reduce the total amount of power needed from your Mac by reducing the number of bus-powered devices connected to your Mac, or using more of them as self-powered devices.
- If your device is plugged into another device (such as a display or multiport adapter) as part of a chain of devices, the other device might not be providing enough power or passing through enough power from your Mac. Plug your device directly into your Mac instead.
- Make sure that the port on your Mac and the cable you're using to connect it to your device both support the same or later USB specification as your device. For example, a device designed to support the USB 3 specification might not get enough power when plugged into a USB 2 port or cable.
- Try a different cable, in case the cable that you're using is damaged or defective. If you're using an adapter with your cable, the adapter could also be damaged or defective.
- If your Mac has multiple Thunderbolt 3 ports, connect your device to a Thunderbolt 3 port farthest away from the current port. For example, if your device is connected to the ports on the left side of MacBook Pro, connect to the Thunderbolt 3 ports on the right side.
- If your device has software (such as drivers or firmware) that can be updated, make sure that it's using the latest software from the manufacturer. To get firmware updates for Apple accessories, update your Apple software.
- Make sure that your Mac is awake and started up from the Mac operating system. Some Apple devices can request extra power only when your Mac is awake or started up from macOS.
Learn more about USB power on your Mac
System Information provides additional detail about USB power on your Mac. Connect the USB device directly to your Mac, then select USB from the sidebar in System Information. For each USB device, System Information shows:
- Current Available: The default power provided by the port to which your device is connected.
- Current Required: The power needed by your device.
- Extra Operating Current: Mac computers and Apple displays introduced after 2006, when directly connected to certain Apple devices such as iPhone or iPad, can provide extra power over one or more ports. The Mac or display must be powered on and awake to provide this extra power. A Mac started from the Windows operating system doesn't provide extra power.
Learn more about the power available under each USB specification, such as USB 2 and USB 3.
