My macbook will not recognise USB devices, Help!

My macbook pro with OS Yosemite will not recognise USB devices such as tom toms, digital voice recorders or cameras. I find this frustrating as I can not update or download to my macbook. Any ideas on what I can do?

Have you checked the settings in FINDER PREFERENCES?
Have you checked with the respective vendors to determine compatibility with your MBP?
Ciao.

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Iphone 5 stuck at itunes connect screen windows7 will not recognise usb device

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itunes will not recognise my device iphone 5s, pls can some one help???

Hello Tantoh,
Welcome to the Apple Support Communities!
I understand that your iPhone is not being recognized by iTunes when you connect it. To help resolve this situation, please read over and work through the steps outlined in the attached article.
If you don't see your connected device in iTunes for Mac - Apple Support
Have a great day,
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Itunes will not recognise a device

i tunes will not recognise that i have inserted the ipod usb slot into the laptop, please help

Try this:
http://support.apple.com/kb/ts1538
or
http://support.apple.com/kb/ts1591

13" MacBook Pro 2012 Not Recognising USB Devices on OSX 10.9.1

Hello,
Since updating to OSX 10.9.1, one of the USB ports of my MacBook is not always recognising devices (external HDDs and Logitech Unifying Receiver), often when the other port is used.
It is the port on the right. First I noticed this problem with the Logitech Unifying Receiver, I thought perhaps it is because of the driver, but today I had to plug in my external HDD several times to get recognised and mounted. When not recognised, the Logitech Unifying receiver is not even listed in System Information, and HDDs are not listed in Disk Utility.
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Hi AMDeeb,
Thanks for visiting Apple Support Communities.
If USB devices are not being recognized reliably by your MacBook Pro, start with resetting the NVRAM:
Resetting NVRAM / PRAM
Shut down your Mac.
Locate the following keys on the keyboard: Command (⌘), Option, P, and R.
You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.
You can find more information about this troubleshooting step here:
About NVRAM and PRAM
http://support.apple.com/kb/HT1379
Best,
Jeremy

Windows XP does not recognise USB devices after installing itunes 7.2

After downloading itunes 7.2 my PC no longer recognises my ipod nano (2G, 2Gig). Uninstalling itunes 7.2 and reverting to a previous version makes no difference.
On top of this my PC no longer recognises my external USB 2.0 HDD.
Uninstalling and allowing windows to rediscover USB devices \ hubs etc as per MS recomendations has not resolved my problem
Both devices function with no issues when plugged into my laptop.
Any suggestions on how to resolve this will be greatly received!
Many thanks
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Hi,
I'm after some advice about a problem I'm having with my R700, I can't get the laptop to recognise USB hard drives at the boot stage. I'm trying to use Acronis to create an image as I have 40 of these laptops.
The USB CD rom drive is recognised, and so is a Corsair USB pen (which unfortunately isn't big enough), but I have three USB hard drives (a Freecom Tough Drive, Buffalo MiniStation and a Western Digital Passport) and none of them are recognised by the BIOS. USB legacy emulation is enabled.
Am I missing something?
Thanks, Karen

In the past many people have noticed the same problem. External HDD cannot be used as bootable device. Paolo is right, you can use USB stick, USB optical disc drives or old USB floppy disc drives.
In my opinion you should create recovery DVD using Acronis and use this disc for OS installation.

HELP! Macbook will not wake! Please help!

+2.0ghz 13.3 Macbook Aluminum from OCT 2008 (MB466LL)+
+OS: Leopard 10.5.8+
Issue: Computer will boot, but will immediately go into some type of soft sleep mode. If I press the power button to wake it from sleep, it will attempt to wake by flickering the screen once but then goes back to dark. For about 5-10 seconds I see the desktop and a few windows open but very dark almost like the screen was completed faded to black.. and then it goes back to sleep. I've tried hitting F2 during the 5-10 seconds but it does not help or work.
Sometimes I'll succeed with getting it 100% back from sleep for about 1-2 minutes which it looks and works normal, but it then goes back to soft sleep.
I'm traveling in Brazil for a whole month, and it started happening 2 days ago. It simply went to sleep by itself after I finished watching a movie on VLC.
*-Same thing happens when booting to safemode.*
*-Same thing happens when booting from CD.. It gets to first page where I choose my language and immediately goes to sleep.*
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*_+What I've done so far:+_*
= Reset the PRAM/NVRAM
= Reset the System Management Controller (SMC)
= Unplugged battery
= Tried re-seating the RAM
= Repaired permissions
= Used Disk Utility to scan/repair HD. - Found no issues
= Disabled safe sleep in terminal using: "sudo pmset -a hibernatemode 0" and also by by going to energy saver and setting it to NEVER SLEEP.
I see that a lot of people have had this problem with Macbooks going to sleep and not waking. But not a lot of solutions.. I'm going crazy. There's an apple store near where I am right now (Sao Paulo, Brazil) but even though I somewhat speak the language I'm hesitant to take it there still. Can someone PLEASSSSSSEEEEEEEE give me a hand?
Message was edited by: RogerBraziliano

Well to anyone else that comes across this issue. After 3 days of nonstop troubleshooting I've finally figured it out and got my baby working again.
Apparently, the problem is with the Hall sensor, that reports whether your "lid" is closed or not. Unfortunately, It is - seemingly - embedded into the Top case keyboard-touchpad assembly. In fact, the majority of the problems arise from the flex cable attached to the keyboard.
So you have 2 actions to choose from. 1) Replace the "Top Case Keyboard Assembly" which you can find for $50-$100 on ebay. Or 2) Open your bottom case, and reset the keyboard ribbon cable out of its socket (which goes into the Flat cable ZIF socket). This has worked for me almost instantly. Regardless if the cable was somewhat loose before or not, I unplugged it, and reset it and It's been working ever since. If for some reason the issue returns, well I just have to hop on ebay and buy a new Topcase/Keyboard.
Good luck.
Check out step 12 on this link which shows where the Keyboard ribbon cable connects to
http://www.ifixit.com/Guide/Repair/Installing-MacBook-Pro-13-Inch-Unibody-Logic- Board-Replacement/1363/4

Windows dose not recognise USB device

First time i plugged in my 2nd gen shufle yesterday, no problems. Now i get this balloon message pop up from the task bar ech time i plug it in. I've reset my computer. Turn ipod on and off numerous times. This mesage still appears. Help?

Have you had a chance to look at this troubleshooting page? It may be of some help: iPod not recognized when connected to Windows laptop over USB

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tmplHi pranoop,
If you are having an issue with your iPod touch not being recognized by iTunes when connected to your Windows computer, I would suggest that you troubleshoot using the steps in this article -
iPhone, iPad, or iPod not recognized in iTunes for Windows - Apple Support
Thanks for using Apple Support Communities.
Sincerely,
Brett L

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the new printer was made default, and the old one removed.
Photoshop Elements 9 does not find the new printer and searches unsuccesfully
for the old one.
Tthe printer works perfectly for all other applications.
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Hi Jeff, I have found a way round the problem by using Epson scan.
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Whenever I update from Windows 7 get error 1602, iPod shows USB connection to iTunes, but iTunes will not recognize the device. None of the Apple documentation helps.

Whenever I update from Windows 7 get error 1602, iPod shows USB connection to iTunes, but iTunes will not recognize the device. None of the Apple documentation helps. The Apple Mobile Device driver is loaded and operating. The anti-virus software and firewall are not at fault (were uninstalled, and made no difference). The iTunes on my older machine running Vista does recognize the inoperative iPod (iTunes has detetced an iPod in recovery mode) and allows me to restore the device. Can anyone help to resolve this problem on the Windows 7 PC?

So yu tried all of this:
Error 1600, 1601, 1602: Try the following steps to resolve this error:
Ensure proper USB isolation troubleshooting has been performed, and test with a known-good cable.
Follow the steps listed for Error 1604.
This error may be resolved by disabling, deactivating, or uninstalling third-party security, antivirus, and firewall software. See steps in this article for details on troubleshooting security software.
Error 1604: This error is often related to USB timing. Try changing USB ports, uninstalling and reinstalling USB ports, and other available USB troubleshooting steps (troubleshooting USB connections, device not recognized properly, computer won't recognize a FireWire or USB device). If you are using a dock, bypass it and connect directly to the white Apple USB dock connector cable. If the issue persists on a known-good computer, the device may need service.
If the issue is not resolved by USB isolation troubleshooting, and another computer is not available, try these steps to resolve the issue:
Connect the device to iTunes, confirm that the device is in Recovery Mode. If it's not in Recovery Mode,put it into Recovery Mode.
Restore and wait for error 1604.
When prompted, click OK.
Close and reopen iTunes while iPhone remains connected.
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Try to restore again.
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If you had then time for an appointment at ther Genius Bar of an Apple store.

Latest Initrd not recognising USB storage devices?

Just installed 2.6.30 with all the necessary files. Everything seemed fine, except for one thing: my external USB hard drive is no longer recognised on boot. Here is my fstab and my mkinitcpio.conf.
# /etc/fstab: static file system information
# <file system> <dir> <type> <options> <dump> <pass>
none /dev/pts devpts defaults 0 0
none /dev/shm tmpfs rw,noexec,nosuid 0 0
#/dev/cdrom /media/cd auto ro,user,noauto,unhide 0 0
#/dev/dvd /media/dvd auto ro,user,noauto,unhide 0 0
#/dev/fd0 /media/fl auto user,noauto 0 0
UUID=139cf76d-425a-4c40-a5b1-bbbf22533d9a /boot ext4 defaults 0 1
UUID=4eddd177-23f6-49ab-a8ad-d3e1303133e0 / ext4 defaults 0 1
UUID=ED83-B8D4 /media/flash vfat rw,user,noauto 0 0
#UUID=ac46c6ae-d9eb-47d4-809b-19a2484b3133 /iomega ext4 rw,noexec,nosuid 0 1
UUID=ac46c6ae-d9eb-47d4-809b-19a2484b3133 /media/iomega ext4 rw,user,noauto 0 0
UUID=da9e741f-3525-47c6-8c7f-edf1ded00e7a swap swap defaults 0 0
As you can see from this, I originally had my external usb drive mounted on /iomega @ boot. However, since that no longer works, I have changed it to /media/iomega and let HAL mount it automatically when I fire up GNOME (the same way I have my flash drive set up). I used the original line with 2.6.29 with no problems.
The strange thing is, the device is there, because, when it fails, I go into single user mode, remount / read-write and then run mount -a and the device appears with no errors. If I change the line so it doesn't do an fsck on boot, it doesn't mount the device, but I do get an error saying the device is not there. I can then mount it manually at the command prompt.
The device is shown in /etc/blkid.tab and in /dev/disk/by-uuid.
# vim:set ft=sh
# MODULES
# The following modules are loaded before any boot hooks are
# run. Advanced users may wish to specify all system modules
# in this array. For instance:
# MODULES="piix ide_disk reiserfs"
MODULES=""
# BINARIES
# This setting includes, into the CPIO image, and additional
# binaries a given user may wish. This is run first, so may
# be used to override the actual binaries used in a given hook.
# (Existing files are NOT overwritten is already added)
# BINARIES are dependancy parsed, so you may safely ignore libraries
BINARIES=""
# FILES
# This setting is similar to BINARIES above, however, files are added
# as-is and are not parsed in anyway. This is useful for config files.
# Some users may wish to include modprobe.conf for custom module options,
# like so:
# FILES="/etc/modprobe.conf"
FILES=""
# HOOKS
# This is the most important setting in this file. The HOOKS control the
# modules and scripts added to the image, and what happens at boot time.
# Order is important, and it is recommended that you do not change the
# order in which HOOKS are added. Run 'mkinitcpio -H <hook name>' for
# help on a given hook.
# 'base' is _required_ unless you know precisely what you are doing.
# 'udev' is _required_ in order to automatically load modules
# 'modload' may be used in place of 'udev', but is not recommended
# 'filesystems' is _required_ unless you specify your fs modules in MODULES
# Examples:
# This setup specifies all modules in the MODULES setting above.
# No raid, lvm2, or encrypted root is needed.
# HOOKS="base"
# This setup will autodetect all modules for your system and should
# work as a sane default
# HOOKS="base udev autodetect pata scsi sata filesystems"
# This is identical to the above, except the old ide subsystem is
# used for IDE devices instead of the new pata subsystem.
# HOOKS="base udev autodetect ide scsi sata filesystems"
# This setup will generate a 'full' image which supports most systems.
# No autodetection is done.
# HOOKS="base udev pata scsi sata usb filesystems"
# This setup assembles an pata raid array with an encrypted root FS.
# Note: See 'mkinitcpio -H raid' for more information on raid devices.
# HOOKS="base udev pata raid encrypt filesystems"
# This setup loads an lvm2 volume group on a usb device.
# HOOKS="base udev usb lvm2 filesystems"
HOOKS="base udev autodetect pata scsi sata usb keymap filesystems"
# COMPRESSION
# Use this to compress the initramfs image. With kernels earlier than
# 2.6.30, only gzip is supported, which is also the default. Newer kernels
# support gzip, bzip2 and lzma.
#COMPRESSION="gzip"
#COMPRESSION="bzip2"
#COMPRESSION="lzma"
This is essentially the same as I had it in 2.6.29. I did initially use LZMA, since that gives slightly faster compression & decompression, but changed it back in case it was a timing issue (and rebuilt initrd). No joy. I also tried usbdelay=10 on boot, but again no difference.
This isn't exactly a "show-stopper", since the device functions normally otherwise and everything else is fine, but it is annoying. I would much rather have this device available automatically on boot, so that it gets checked when the max mount count comes up.

This was the bug update I received today:
FS#15282 - [mkinitcpio] Latest initrd not recognising usb storage devices?
User who did this - Thomas Bächler (brain0)
You can never rely on external hard drives to show up "in time".
The difference was that adding the "usb" hook to mkinitcpio used to add a 6 second delay on boot by default, this doesn't happen anymore. I think external drives simply don't belong in fstab, because there's too many possible race conditions. If you insist, you can try to force the usb storage driver to scan for devices sooner after detection, see the delay_use parameter to the usb-storage module.
You're going to have to modify the delay_use parameter to get it to work. Be prepared for race conditions, though. I didn't bother myself as it wasn't a show stopper for me, so I've advised that it can be closed as a non-bug.
ETA: usbdelay=10 doesn't work as that flag is apparently no longer recognised for some reason.
ETTA: I've always used UUID in the fstab because udev can remap devices on boot (I've had fstab not recognising devices because of this).
In case some people don't know, to see what the uuid for a device is, use the following:
sudo tune2fs -l <device-name>
Last edited by jamesbannon (2009-06-28 18:30:23)

I recently connected my new ipad to my itunes, but now itunes will not recognise my ipod classic, and 50gig of music has gone. ipad connects ok but no longer ipod which has been there for two years! help!!!

I recently connected my new ipad to my itunes, but now itunes will not recognise my ipod classic, and 50gig of music has gone. ipad connects ok but no longer ipod which has been there for two years! help!!!

What happens when the iPod is plugged in? anything? any errors?
Why is 50GB of music gone? All music should exist on the computer. Only a fool would rely on a single device which could easily be lost or stolen to store their content on.

HT1449 I've transferred my itunes library from PC to Macbook pro running latest itunes and now it will not recognize my iPods (nano 4 and 5th Gen an Ipod touch). All music is there and playable but will not recognize any devices

I've transferred my itunes library from PC to Macbook pro running latest itunes and now it will not recognize my iPods (nano 4 and 5th Gen an Ipod touch). All music is there and playable but will not recognize any devices. Help please

The ipod is not a backup/storage device.
You need to copy everything from your old computer to your new one.
The Apple store will do this for you, you can call apple support and they will help you, you can use google.

My macbook will not recognise USB devices, Help!

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