Questions tagged [usb]

Use this to tag for questions about the USB interface or devices connected via USB.

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Booting iMac from External SSD & UASP support in iMac, Docking station or USB to Sata Adapter?

I have Late 2013 iMac which has 5400 RPM HDD and I find it really slow. So, I purchased a Crucial MX500 SSD. I have now cloned my HDD to SSD using superduper and then booted from it. It worked. But I ...
lightsaber's user avatar
2 votes
0 answers
47 views

Slow file transfer from & between iMacs

I have a problem with slow file transfers from & between 2 iMacs which I'm hoping you can help with. iMac27 is a 2009 with 12Gb RAM & a 1Tb HDD running High Sierra 10.13.6 iMac24 is a 2007 ...
Knobby's user avatar
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2 votes
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79 views

Non-HTTPS websites don't work over Anker ethernet adapter since Catalina

I'm having a weird bug where my Anker USB-C hub is messing with the ethernet connection. I can only visit HTTPS sites and HTTP sites get redirected to a page saying: Router Behind Router Detected ...
Leo Adberg's user avatar
2 votes
0 answers
2k views

New MacBook with USB-C does not recognize an older DVD drive via USB to USB-C adapter

I just got a new MacBook and a QGeeM adapter between USB and USB-C. Trying to connect an older Apple DVD drive that has the usual USB connector. The new MacBook doesn't recognize that a device has ...
Michael's user avatar
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3k views

Refresh USB port / restart usb service

after the upgrade to Catalina I have some problem with the USB hubs. I have three USB hubs (all working fine before the upgrade) that when plugged they are recognised once every 10/15 times. If I plug ...
AdeLast's user avatar
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24 views

MacBook not booting up nor recognising bootable usb

I have this old macbook that I wanted to convert into a ubuntu server, however it didn't recognise my ubuntu server bootable usb which my newer MacBook Air did. After tying to use a 32 bit version and ...
Valentijn's user avatar
2 votes
0 answers
143 views

Trying to create a bootable USB drive for Mac Mini

I have a Mac Mini Late 2012. Trying to create a bootable USB drive. I have a USB Yosemite install drive. It has worked, many times to load Yosemite to an internal drive. I plugged this in to the ...
JTP - Apologise to Monica's user avatar
2 votes
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(How) Can I access a USB-based DVD drive while in recovery mode?

A client has the need to access a USB-based DVD drive while in recovery mode. How does one accomplish this?
user3.1415927's user avatar
2 votes
0 answers
3k views

MacBook Pro doesn't detect (anymore) ethernet connection via USB-C screen

I have a USB-C screen that offers hub functionnality (usb, audio, ethernet). While the screen is perfectly connected and works like it should for usb, audio, and of course video, the ethernet ...
Buzut's user avatar
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238 views

Disable USB C on MacBook Pro 2018

Is there a way to disable USB C ports on my MacBook Pro 2018 for anything except charging ?
MB.'s user avatar
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How can I reconnect a USB device (NOT A STORAGE DEVICE) without physically unplugging?

So I'm using Windows on Parallels Desktop for some application. After I disconnect the USB device from the virtual machine, it is not automatically connected back to macOS. I can still see the device ...
atesba's user avatar
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How to disable USB Mass Storage in Mojave to free up device for libusb?

I am trying to use usb_modeswitch via libusb to switch a Huawei HiLink USB LTE modem to Ethernet mode from mass storage mode. It fails with the following error. libusb: error [...
Filippo Valsorda's user avatar
2 votes
0 answers
160 views

Issue with iPhone for playing music in the car

For the past 2 days, I haven't been able to play music from my iPhone in my car with bluetooth, nor with a USB connection. If I connect the iPhone with bluetooth, the phone-calls work well. I have ...
David's user avatar
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2 votes
0 answers
374 views

Assign serial number to USB device

I have 2 identical USB devices (Zoom F8 multitrack field recorders) which connect as a standard audio interface. I'd like to create an aggregate device using both devices. macOS definitely "sees" both ...
howecome's user avatar
2 votes
1 answer
1k views

Mac Pro not detecting Windows install DVD

I have Mac Pro 1,1 (2006 version) running Lion 10.7.5. Bootcamp on this model officially supports up to Windows 7 x86 though people have reported being able to run Windows 10 x64. I downloaded a ...
www139's user avatar
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Is there a way to use the IPad 2018 with both a midi controller and audio out?

The iPad Pro 2018 has a single USB-C port. I have a dongle (USB-C => Audio) that lets me use headphones, I have a dongle (USB-C => USB-A) that lets me plug in a MIDI Keyboard. What I want is to be ...
Robert Anton Reese's user avatar
2 votes
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464 views

How to get Mediatek MT7601u working on 10.13.6?

My 2011 MacBook pro has a broken WiFi card so I have been using USB dongles instead. My previous one stopped working so I have been trying to get a Mediatek MT 7601u working. This MacBook Pro is ...
Simon Baldwin's user avatar
2 votes
0 answers
218 views

Why do I have to disconnect/reconnect my ethernet adapter?

I have a DongleBook Pro and I use a powered 7-port USB Hub. Connected to the Hub is a backup drive, an audio interface, an ethernet adapter, and some other stuff. The only device that causes me ...
jvdev7's user avatar
  • 121
2 votes
1 answer
2k views

How to tell the keyboard layout from the box?

I have a brand new Apple wired keyboard (someone gave it to me for free). I want to sell it on eBay. How can I tell the layout just by looking at the box? I tried to Google every number on the ...
B P's user avatar
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Create bootable macOS USB without using macOS

I need to install macOS to a new SSD because the old one might be broken (MacBook freezes after couple of mins and will seldom start again - usually error screen showing a file with question mark). ...
Adam's user avatar
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stuck in the mud -- trying to install new MacOS from USB

I have an iMac with a blank hard drive. The HD has been erased and formatted using the Disk Utility. Now I want to install MacOS -- any MacOS. When I try to install High Sierra from a 16 GB USB ...
Maggie Cummings's user avatar
2 votes
0 answers
74 views

Let connected device know about the maximum 2.1A output of a USB port via software

I am fairly technical and I was wondering if there are any software based hacks or modifications that I can apply to force the maximum of 2.1A to be supplied through a USB port without the attached ...
Isa's user avatar
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How can I tell the exact time when a drive disconnected?

I have a USB drive (a Drobo) that appears disconnecting randomly after 10-20 hours. I'm trying to gather data to help understand the root cause of the problem so I'd like to understand the timing of ...
Ivar's user avatar
  • 179
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iPhone not recognized by MacBook 12"

I want to connect an iPhone 6 to my 2016 12" MacBook. I have a USB-C to USB-A adapter. If I connect the iPhone, macOS shows a warning (translated): USB device requires power (Note: It just says power,...
dan's user avatar
  • 121
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3k views

USB-3–Lightning cable: Does it yet exist?

According to Apple, the 2017 iPad Pros (12.9 and 10.5 inch) are equipped with a USB-3–capable Lightning connector and Apple already sells a Lightning to USB 3 camera adapter. However, I am looking ...
Daniel's user avatar
  • 271
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1 answer
3k views

After installing High Sierra can't mount external USB drive (TimeMachine), why not?

I installed High Sierra and now my iMac (27" 2011) can not see the external USB TimeMachine drive. The drive shows up in DiskUtil but it's greyed out. I can not mount it. In fact it doesn't respond ...
Rich's user avatar
  • 385
2 votes
2 answers
3k views

Seeking a USB Flash Drive (nearly) flush with MacBook

I am seeking a low-profile USB flash drive (in either 2.0 or 3.0) that would sit nearly flush with the side of the MacBook. This way I can leave it in through reboot cycles, and hopefully find that ...
Calaf's user avatar
  • 4,359
2 votes
1 answer
113 views

Prevent Sierra from opening a Window for a new Volume

I have a mobile LTE modem that I connect to via Wifi. Whenever I connect via USB (for charging) Sierra opens a /Volumes/Web Connection Finder window. How can I prevent that? I can't use bless as the ...
laktak's user avatar
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100 views

MacBook Air no longer recognizes USB external HDDs, flash drives or SD cards

My MacBook Air (13-inch, Mid 2012) is no longer recognizing a USB external HDD, flash storege and even SD cards anymore. I did nothing different than usual before I confronted this big problem. My ...
Fraukn's user avatar
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2 votes
0 answers
277 views

What is the added benefit of the vendor provided FTDI USB to Serial driver?

Future Technology Devices International Ltd. provides a driver for their USB-to-Serial chips specific for MacOS 10.9 and above. When I first connect a device with such a chip, I can see the ...
user avatar
2 votes
0 answers
2k views

Bootable USB with Ubuntu does not show in boot sequence options

I followed this question (How to create a bootable Ubuntu USB stick Using OS X 10.10.2) to turn the Ubuntu 14.04 ISO to a bootable USB. I have a MBP (with touchbar) running 10.12.5. After rebooting ...
Shaihi's user avatar
  • 123
2 votes
0 answers
4k views

Installing Mac OS X 10.3/10.4 from USB

I have a PowerMac G4 (AGP) with a working copy of Mac OS 9.2, and a corrupted copy of OS X 10.3. I would like to either reinstall Panther, or upgrade to Tiger. The catch is that for several reasons I ...
Alison E.E.'s user avatar
  • 1,589
2 votes
0 answers
830 views

MacBook Sierra display ethernet needs constant re-starting

I have a shiny new MacBook Pro (13-inch, 2016, Four Thunderbolt 3 Ports) running Sierra (10.12.4). When connected to my Apple Thunderbolt Display via an Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 ...
steve's user avatar
  • 21
2 votes
0 answers
584 views

MacBook stops recognizing Android USB until restart

For years of development I've never had this issue. Today my Galaxy S7 Edge (Android 7.0) suddenly isn't detected via USB connection by my MacBook (El Capitan). AFT, adb, Unity, nothing detects it any ...
Kristof's user avatar
  • 131
2 votes
0 answers
7k views

Create a Bootable Windows 7 USB from a Mac

I found several old threads where similar situations were described with no practicable answer, so I ask again. Please forgive me if I am creating a redundant post but I have read the following ...
Electrik Dave's user avatar
2 votes
0 answers
903 views

iPhone drawing too much power from USB ports (yes, I believe it's the device). What can I do?

The issue started a couple of days ago. My Macbook Pro kept restarting. After some testing I've realized this happens only when my iPhone is plugged in for charging. I think it's the device fault ...
Iban's user avatar
  • 21
2 votes
0 answers
2k views

Apple external (magic) keyboard: SHIFT + [ not working

Im having some weird problem. I have connected my magic keyboard via USB. When I type "[" its working as you see. Also when I type SHIFT + ] I get "}". PROBLEM: But when I try to type SHIFT + [ I ...
Eimantas Gabrielius's user avatar
2 votes
3 answers
4k views

MacBook Pro 2015 install app on external drive including a cloud storage drive

I would like to install MS Office 2016 on my MacBook Pro but there's not enough space. I thought of installing it on an external USB drive. However, I got an error message that "Microsoft Office 2016 ...
Mina's user avatar
  • 21
2 votes
0 answers
2k views

Mount point for USB devices on Mac

I'm familiar with Ubuntu where USB devices are mounted at /dev/bus/usb/xxx/yyy. Is there an equivalent for Mac, i.e. a file system location where all USB devices (not just drives in /Volumes) are ...
Malcolm Crum's user avatar
2 votes
0 answers
139 views

Manually copy .ISO to bootable USB (without Bootcamp) [duplicate]

I want to create a bootable Windows USB from my Macbook manually as an alternative to Bootcamp. I've downloaded the Windows 10 ISO file. Formatted an 8GB USB with MS-DOS(FAT) with a Master Boot ...
user avatar
2 votes
0 answers
389 views

USB Microphone way too loud

I recently got a USB Microphone and no matter what I do, the microphone is way too loud. I lowered the input level in system preferences to be as low as possible without being off and it's way too ...
ari gold's user avatar
  • 121
2 votes
3 answers
4k views

USB 3.0 Ethernet dongle (AX18879) not working with 10.11.4

I have been using the StarTech USB 3.0 Gigabit Ethernet dongle which was working until I upgraded to the latest OSX Beta 10.11.4. Now it has stopped working--not even showing any indicator lights when ...
Andrew Patterson's user avatar
2 votes
0 answers
2k views

El Capitan GM and USB passthrough

After updgrading to El Capitan GM, I noticed that usb passthrough no longer works in VirtualBox, and this seems to be occuring for everyone. I have found several threads on VirtualBox forums ...
Ola Næss Kaldestad's user avatar
2 votes
0 answers
414 views

USB-C Extension Cable

I was looking around the web for a USB type C male to USB type C female extension cable, and could not find one. Does such a product exist? I have set up Apple's AV adapter for the new MacBook at my ...
Michael Cheal's user avatar
2 votes
0 answers
4k views

Connecting Apple Wireless Keyboard with USB-Receiver

I'm using a Aten CS533 to pair a USB-Keyboard with my PC, a MacBook Pro and my iPhone. I'd now like to upgrade the wired keyboard to an Apple Wirless Keyboard. But I'm not sure how to pair them. Is ...
Heinzelchen's user avatar
2 votes
0 answers
164 views

USB Hub in 'safe' mode?

I have a powered USB 2.0 hub which suddenly started acting weird. No new devices or anything. It is the same setup as before. All connected devices are still working, except one. The one device (a ...
Grav's user avatar
  • 121
2 votes
0 answers
50 views

How to detect already connected USB drive? [duplicate]

I am using a MacMini runing OS/X for some work, and I'm n00b to OS/X - and I often leave a USB drive plugged in when I switch off at night. However, when I re-start, the drive is not detected and ...
BlueChippy's user avatar
2 votes
0 answers
218 views

Phone not showing in Finder (but available for Dropbox)

I use a 3-years old Nokia X2-01 phone and moved to the Mac recently. I'd like to copy some files to the phone but I do not see it in the Finder. In Windows, I used to be able to plug the phone in via ...
Fabien Snauwaert's user avatar
2 votes
1 answer
1k views

Sound card (Audionengine D1) not working on new MacBook Pro Retina

My soundcard (USB DLC Audioengine D1) is not working on my new MacBook. My old MacBook Air from 2012 has no problem with it. When plugged in the device, I get this weird error in the Console. Looks ...
Paul's user avatar
  • 1,487
2 votes
0 answers
168 views

Installing Mavericks on USB pen to run on Windows PCs [closed]

How can I install Apple's Mavericks on a pen drive, that I can then plug into a windows machine and boot from it? I did that some years ago with 10.6: I installed it on a 16Gb pen drive and then I ...
Alex's user avatar
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