Devices that use the Universal Serial Bus data interface

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1answer
10 views

MacBookPro10,1 goes to gray screen when a USB is inserted

This is a follow up to my other question. Now the problem is sometimes when inserting a USB stick, the computer freezes and goes to a complete gray screen(kernel panic). It seems to only happen if ...
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1answer
596 views

diskutil eraseDisk results in Error: 12: POSIX reports: Cannot allocate memory

I'm trying to format my usb drive that is partitioned with FAT32 by the following command in Terminal: $ diskutil eraseDisk JHFS+ UntitledUFS disk1 However, I get this output: Started erase on ...
0
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1answer
19 views

Mouse disconnected after booting

Everytime I boot up my iMac (OS X 10.9.3) it doesn't find my mouse. If I unplug the mouse and reconnect it after around 20 seconds, it works. It's an USB mouse. Every other USB device works fine. I ...
1
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1answer
1k views

AppleUSBCDC weirdness after strange incident

I use my MBP propped on one of those laptop stands, ergo my external USB mouse and USB keyboard (both generic cheap-ass Logitechs) are always connected through a powered Belkin USB hub. Yesterday I ...
1
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1answer
19 views

can't connect two hard-drives to my airport

I have two seagate usb 3.0 4tb drives full of music that I want to access wirelessly. I have my Bites USB 3.0 hub powered by DC 5V cord. I want to connect these to my airport extreme (5th gen), but ...
4
votes
2answers
5k views

Apple USB Keyboard not working on 27" iMac (Intel Core i7)

I have two similar iMacs (27" - i7 - os10.8.4 ) and use Apple's extended USB keyboards on both of them. After a power outage neither keyboard will work on one iMac (A) although both keyboards work ...
0
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1answer
20 views

Bootcamp Macbook Air thinks my USB 3.0 ports are USB 2.0

I recently installed Windows 7 via bootcamp on my new Macbook Air. I have a Seagate USB 3.0 drive that works great in OSX but behaves strangely in Windows. Windows recognizes that it is a USB 3.0 ...
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0answers
45 views

Mysterious sounds of mail activities when using external loudspeakers

When I connect over USB to my MacBook AIR my external loudspeakers ("Philips multimedia 2.0 speakers SPA2201") I sometimes here immediately afterwards sounds of mail activity. Mail.app is opened (as ...
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1answer
1k views

iPhone hotspot via USB doesn't work

iPhone 3GS, iOS 6.01 Macbook Mac OS 10.6.8 The iPhone 3GS hotspot works fine via Bluetooth, connected to my iPad. If, instead, I tried it with my Macbook via USB (can't do it via Bluetooth for ...
2
votes
1answer
2k views

iMac USB Ports Stopped Working

I have an iMac, and because I program I prefer to use the extended USB keyboard. Just as the batteries to my wireless mouse died, my USB keyboard inexplicably stopped working. I've been using this ...
2
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1answer
2k views

/dev/tty.usbmodem disappears after Mountain Lion upgrade

I just upgraded from 10.6 to Mountain Lion. Prior to the upgrade I was using an Arduino and talking to it via /dev/tty.usbmodemmfa141. That device does not appear to exist anymore. When I plug in ...
2
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1answer
10k views

Install windows (bootcamp) without CD or USB Flash Drive

I'm currently trying to install windows on my macbook (13in, 2011), but without any success. My CD drive is dead (as a matter of facts its ruining any cds I put in it), and I simply cant boot via USB. ...
0
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1answer
26 views

Format usb drive (dmg is on - and show read only)

I have a problem to format/erase an usb drive with mac os x on it. It shows that drive is read only. Is there any way that I can format/erase disk to become writable?
2
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2answers
1k views

I can no longer use my Kingston DTSE9 flash drive because it is 'write-protected'. How can I remove the write-protection?

Disk Utility won't allow me to Erase or Repair the drive, it will only let me verify it. Clicking on Disk Partition, I get the following message: This partition cannot be modified. This disk is not ...
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3answers
5k views

OS X Mavericks doesn't recognize my Nexus 5 when plugged in via USB

When I plug in my Nexus 5 into my Mid 2013 MacBook Air 11" nothing happens. It doesn't show up in the finder / on the desktop and when I enable USB tethering, it doesn't show up in my network ...
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0answers
21 views

RS232 adapter connected to Macbook Pro Retina wrongly shows sine wave on output pin

I am trying to connect my Macbook Pro Retina through serial port to an old multianalyzer. I am using USB to RS232 adapter (tested MOXA and FTDI) to connect to it. The problem is, that the transfer ...
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4answers
19k views

Emptying trash of the USB drive

I have a USB plugged in Mac. What I found was .Trashes was not emptied with the emptying trash (right click of the trash and run empty trash) for the USB drive. What might be wrong? Is there any ...
1
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1answer
511 views

Unable to boot from USB Mac

I am running OS X 10.9.2 on a late 2011 Macbook Pro. I created a Windows 7 install usb using bootcamp successfully but the startup screen is not recognizing the usb on reboot. Please help. Note: I ...
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0answers
9 views

Must unplug and replug in USB NIC before it will work

Relatively new to the world of Mac (few months now) and have a Cable Matters USB wired NIC. WiFi on the mac turned off during all of this. If I reboot my mac with the USB device inserted (and cable) ...
4
votes
1answer
5k views

Can I get S.M.A.R.T. support on external hard drives?

Disk Utility reports the S.M.A.R.T. Status as not verified for external disks, and by default Mac OS X only seems able to access S.M.A.R.T. information on internal hard drives. Is there a way to get ...
4
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4answers
750 views

Is there a way to find out when a USB flash drive has been last used (on any computer)?

I have a USB flash drive and I believed someone else may have plugged it in their computer and copied some files. Using my Mac, how do I know when was the last time my usb flash drive was plugged ...
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3answers
1k views

Installing Lion from custom DIY DVD or USB fails

After upgrading to Lion my computer is really slow. Chrome-takes-a-minute-to-open-a-tab slow. I decided to do a clean Lion install and copy all my stuff to see if that fixes it, so I got a new hard ...
2
votes
1answer
314 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 ...
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2answers
4k views

How to install Windows 8 with BootCamp 5 Assistant via USB?

I was able to put Windows 8 setup files on my usb from the installer. Now I just upgraded my machine to Mountain Lion. I have gone through the BC Assistant and it only asks for my Windows CD to be put ...
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0answers
10 views

External USB CD/DVD drive using wrong firmware -

I purchased 2 identical (presumably) external drives from Amazon (http://www.amazon.co.uk/gp/product/B009PG4NA8/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1). One of these drives works, it shows ...
3
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1answer
661 views

How to Disable USB Auto-mount

I use VirtualBox on my MBP and often need to mount my USB flash drive inside the guest. The problem I'm running into is that the host OS (OS X Mavericks) immediately mounts the USB flash drive when I ...
3
votes
1answer
86 views

Software-only way to disconnect and reconnect a USB device?

I have a DisplayLink 3rd monitor on a Mac Mini. Half the time I wake the computer up, the DisplayLink syncs but the graphics onscreen are garbled. Reaching behind the computer and ...
3
votes
1answer
2k views

How to create a USB installer for Multiple OS on an OSX system?

I would like to be able to create a disk image (that I can transfer via Disk Utility.app to a large USB storage thumb drive) which is a multiboot installer for provisioning various operating systems ...
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0answers
34 views

An external hard drive isn't recognized

Once I ejected an external hard drive incorrectly for some reason and from that time on it doesn't get recognized by my Mac so I can't see it plugged in at all (there's no sign in Finder that it's ...
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2answers
54 views

Western Digital Passport Drive Shows up on Old 2009 MacBook Pro, but not my new one

I just bought a new MacBook Pro to replace my old 2009 model. For some strange reason, the external Western Digital Passport Drive I've used for Time Machine on my old Mac doesn't seem to work on the ...
1
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1answer
289 views

Salvaging a Flash Drive that won't mount and Disc Utility can't erase, restore or repair

I have a Centon Flash Drive that will not mount. It is not readable on the iMac nor a Windows 7 machine. The drive cannot be reformatted by the Windows or IMac usual methods that this layman tried. ...
4
votes
1answer
595 views

Connecting a PC PS/2 keyboard to Mac

I've just bought a PS/2 to USB cable to use PS/2 PC keyboard (Compaq SK-2860 and Packard Bell 6301N) in my Mac (OS X 10.8.4) because my Mac's wireless keyboard doesn't work: …but my Mac does not ...
2
votes
1answer
24 views

dd ruined my USB stick, how do I recover?

I tried to copy a Linux distro over to my USB using DD. But half way through it failed because the computer went to sleep or something. I plugged the USB in and I get a message saying it's unreadable ...
3
votes
4answers
3k views

Why won't my Airport Extreme mount my USB 3.0 External Hard Drive?

I just decided to upgrade to a USB 3.0 Hard Drive Enclosure. I regularly use my Airport Extreme to share the hard drive using an older enclosure. I know that the Airport Extreme won't have USB 3.0, ...
1
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6answers
17k views

MacBook Pro USB Ports Not working

I have a MacBook Pro mid 2009 computer. Connecting my usb flash stick doesn't do anything, I tried both ports but not working. I tried connecting an iPad, the iPad charges but it doesn't open show in ...
0
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1answer
2k views

Lion USB Thumb Drive - how to erase them?

I have a stack of those official Apple Lion USB thumb drives. It seems you can't wipe them using conventional means (Disk Utility, diskutil). I think I recall reading once there was a way to erase ...
2
votes
2answers
493 views

Can I charge my Samsung Omnia W with MacBook Pro USB port?

Currently, I am using a Samsung Omnia W and mostly I am using my MacBook Pro's USB port for charging it. Is it fine for charging the battery in the mobile phone? Sometimes, I have received a 'high ...
0
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2answers
1k views

How to set VirtualBox in order to access external hard drives in guest Win7?

I have installed VirtualBox in order to use Windows 7 as guest on a Macbook Air running Mavericks (mainly to be able to use a printer that has no drivers for Mac). Also, I have installed the ...
0
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0answers
28 views

USB Flash Drive not showing up

I was using a usb flash drive to make a bootable bootcamp Windows 7 install disk. However, I tried to format it and could not, so I decided it was a good idea to manually delete the files inside. Now ...
2
votes
1answer
78 views

OSX disable wake on USB

Recently I've obtained a trackball, and I'm trying to use it with my Mac Mini running 10.9.5. The trackball is plugged in via USB port. The ball is rather sensitive, so it picks up very small ...
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7answers
2k views

Internal keyboard and trackpad stop working after plugging in USB device

I got a new MacBook Pro with OS X Mavericks. When connecting my phone via USB, the internal keyboard and the trackpad immediately stop working -- not always but in most cases. The bluetooth mouse and ...
1
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1answer
48 views

Prevent iPhone “Trust this computer” on work PC

I would like to charge my iPhone using a USB plug on my Windows PC at work. However, any time I begin charging with the phone unlocked, it prompts me: Trust This Computer Your settings and data ...
1
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1answer
44 views

2 external USB monitors on MacBook Pro

I have a new macbook pro, got it in january of 2014. I am trying to connect 2 USB ASUS MB168B monitors via the separate USB ports on my macbook pro. One will load up and they other one goes black. The ...
3
votes
1answer
2k views

boot camp fails to copy windows 8 installation files

I have been struggling to get Windows 8 installed on a brand new Macbook Pro Retina. It seemed simple enough to just run Boot Camp 5 with a 16GB flash drive in the USB port and a Windows 8 ...
0
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2answers
643 views

How to use 802.1X authentication with edimax ew-7811un usb wifi adapter?

Edimax ew-7811un, Mac OS X, Snow Leopard, 10.6.8. According to the manual, you can use 802.1X tunneled authentication with Windows (it is mentioned e.g. on page 23, ...
0
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1answer
49 views

kIOUSBEndpointCountExceeded error when plugging in USB device

I keep a lot of USB devices plugged into my 15-inch Mid 2012 MacBook Pro for my job. This MacBook Pro has 2 external USB ports. In one is for a laptop fan, and the other is a USB hub which has ...
1
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1answer
2k views

Create bootable USB of Windows 8.1 on Mavericks 10.9.4

I've followed the instructions to enable the "Create windows 7 install Disk" in bootcamp but I am attempting to install Windows 8.1. How do I force bootcamp to allow me to create a windows 7 or later ...
1
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0answers
18 views

How to share Ethernet Internet to Android phone?

I have installed Horndis driver on my Mavericks and my phone is displayed in Network preferences. The issue is I can't get access to internet. I shared Ethernet connection (from Sharing preferences) ...
0
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0answers
150 views

Mac alternative boot loader for booting legacy OS from USB

I am trying to install Windows 7 on my MacBook as a dual boot setup. I have a MacBook 7,1 running Mavericks. I have replaced the DVD drive with a SSD (now have 2 internal drives) so cannot use a ...
0
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1answer
1k views

Airport Extreme 802.11ac Can't See USB HDD

Hardware: Airport Extreme 802.11ac Transcend StoreJet 250GB HDD Belkin 4-port, powered USB hub Configuration: HDD formatted as MS-DOS (FAT32) via Disk Utility HDD connected to USB hub Airport ...