USB flash drive not recognized by Macbook Leopard 15.1

Hi
Until last week my macbook was able to recognize my USB flash drives and my IPOD in Itunes and also as an independant drive.
Last week it started to give trouble. It simply does not recognizes any USB flash drives I plug in as well as my IPOD music into Itunes.
This is very strange since it is recognizing the HP all in one. It scans and prints. I purchased this HP all in one last week and installed the software for it. I am not sure how this could have affected that I cannot mount any USB drives.
Can you please help? Anyone?
Thanks.
Viri

Hi
Welcome to Apple discussions
Can you see the devices if you use Utilities/Disk Utility? Maybe you need to reformat them. Take care, reformatting will lose the data on the device.
Bob

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USB flash drive not recognized on desktop or disk utility

I see a number of similar threads to this but nothing solves this problem. Any help will be greatly appreciated as I am about to go crazy!
I have 3 USB thumb drives that all worked 2 days ago - now only one does. I have tried all drives in multiple ports and the same result. I have restarted the iMac (2009 Yosemite) a number of times and the same result.
This came about attempting to create bootable USBs with each of these. I was struggling with the process on my mac so took 2 (brand new 16GB PNYs) to a PC created the live boot USBs and they booted fine on the PC (knowing this wouldn't boot my mac). I did however plug them into my mac and they were recognized. I finally found success creating a Ubuntu live boot with my old USB. With that success I wanted to try with one of the new USBs on the mac.
Here is what I did:
1. Using Disk Utility - Reformatted the drive 1 partition MS Dos FAT 32
2. In Terminal unmounted the drive and ran a dd command to copy the linux .img file successfully
3. Box came up saying drive not recognized and selected to ignore (this happened on my old one that still works also)
4. Ejected drive from terminal
5 Restarted mac and attempted to boot from USB without success.
After this the 2 new USBs were no longer recognized in any usb port while the other still is. They do not show on the desktop nor in Disk Utility. I checked them on the PC and they are still both recognized and showing the FAT 32 format.
Help please!

Thank you for the reply. I found some time to go through this process a number of times without success
Any other suggestions?

USB flash drive not recognized by computer. Have tried all options of which I can think.

Okay. I have a Patriot S-Mini 32GB flash drive that my Windows 8.1 HP Slimline 400-434 is not recognizing. I believe it recognized it once, and has refused to do so since. My laptop (Windows 7 Toshiba) recognizes it just fine.
All other USB devices function perfectly on this computer. USB mouse/keyboard/USB Hub/Apple iPhone cable.
1. I have tried unplugging all other USB devices before trying this one. FAIL
2. I have gone to Device Management and the USB drive does not appear in the list. FAIL
3. I have uninstalled the USB Root Hubs and restarted the computer. FAIL
4. I have tried plugging the USB drive into the rear ports that plug directly into the motherboard. FAIL
5. I have updated the drivers, and have been unable to find a BIOS update as the link on the HP website downloads and says that it is incompatible for my computer. FAIL
...so what the bloody gorram heck do I do now?
This question was solved.
View Solution.

Okay, and in the most ridiculous way I have ever solved a technical problem...
The USB flash cannot be inserted ALL the way into the port. It has to be inserted slowly, so that the contacts line up.
I figured this out by trying to connect it into my USB hub and noticing that the red indicator light was going on and off as I inserted the USB drive, flickering on as I inserted it and then off once it was all the way in.
Weird. But hey. It works now.

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Hi
Welcome to Apple discussions
Can you see the devices if you use Utilities/Disk Utility? Maybe you need to reformat them. Take care, reformatting will lose the data on the device.
Bob

USB Flash Drive not mounting

I recently bought an 8GB USB flash drive, which came formatted FAT-32. The drive was put into a friend's Windoze laptop and had a couple GBs of jpeg and avi files transferred to it. I took the drive home and put it in my white MacBook (4GB RAM, Leopard 10.5.8) and it would not mount. I put it in my G4 MacMini; likewise, it wouldn't mount. I am assuming it also won't mount in all my older Macs with USB, either. I returned it to the Windoze laptop, and it ALSO wouldn't mount this time, except as one pulled the flash drive from the Windoze laptop, for a second a window with the flash drive's contents would flash on the desktop of the laptop. Originally, the flash drive was "properly" ejected from the Windoze laptop.
On the MacBook, both Disk Utility and DiskWarrior do not see the flash drive when it is in the USB port (either port). However, Apple System Profiler does recognize when it is plugged into the port. ASP returns the following information when the flash drive is in the high speed USB port:
"Flash Disk:
Product ID: 0x3234
Vendor ID: 0x1221
Version: 0.00
Serial Number: 10000000000003CF
Speed: Up to 480 Mb/sec
Manufacturer: USB2.0
Location ID: 0x24100000
Current Available (mA): 500
Current Required (mA): 100"
Anybody have any idea what is the cause of my problems with the flash Drive and how I can get the drive to mount? I don't think the problem is a function of my Apple hardware, as my USB ports on all my machines function with everything else USB which I have without problems. Thanks.

I know that, but I have USB in my older Macs, too, and besides, some of the most knowledgeable people are in these older forums!!
I've come to the conclusion that the drive may be defective, too, but I was just looking for some possible angle which I'd not already considered. I tried reformatting, but without the drive even being recognized, it isn't even possible to reformat. I can only get ASP to indicate that it is attached.
Thanks for your try!

USB Flash Drive not detected after OS X Mountain Lion installed.

My MacBook Air 11 inch (Mid 2011) suddenly stopped detecting all my USB flash drives a week after upgraded to Mountain Lion.
I have a tiny 16GB USB flash drive (Sandisk Cruzer Fit), for daily work, that has never been unplugged from my MBA.
Everything was fine on Lion, and a week of Mountain Lion, until just when my MBA prompted me that my flash drive "was not ejected properly" after I re-opened the display/lid, or from sleep mode.
I thought I might have accidentally removed the flash drive unknowingly. So I tried re-plugging the flash drive, closed and re-opened the MBA lid, and the same error message "The disk was not ejected properly" occured. I repeated the steps for a few times (thinking my flash drive might be faulty) and at my last attempt, the flash drive was stopped detected. I tried several USB flash drives and external hard drives (of various brands) to both the USB ports of my MBA, only the external hard drives were detected (on both USB ports) and functioning. None of the flash drives was detected on either USB port.
The tested flash drives were plugged to another 13" MacBook (Unibody, Late 2008, OS X Lion) and they all worked fine.
I wonder if anyone faces the same problem, and solution(s) please?
Additional: OS X Mountain Lion re-installed and same problem occurs / No problem with OS X Lion.

I had the same issue after installing Mountain Lion from the App store. The issue is you are missing the IOUSBFamily.kext extension amongst others. The solution is to backup your macbook, then perform a clean install of Mountain Lion.
I had this done at the Apple Store and now everything is restored as well as performance speed being improved.
Note: When restoring your files (a clean install will delete all your files and applications), use the Migration Assistant.
I would recommend going to the Apple Store to do this because they can perform the clean install from a USB which is so much faster than the download form the App store.
Hope this helps.

USB Flash Drive not geting detected

I brought HP x705w 16GB USB Flash Drive in the month of October 2014. It is not getting detected in any computers i tried. I tried from DEVICE MANAGER but same problem NOT GETTING DETECTED. It is under warranty period.I visited HP care service near me (Aurangabad) but they are not helping me. Please give some help regarding this problem.

I had the same issue after installing Mountain Lion from the App store. The issue is you are missing the IOUSBFamily.kext extension amongst others. The solution is to backup your macbook, then perform a clean install of Mountain Lion.
I had this done at the Apple Store and now everything is restored as well as performance speed being improved.
Note: When restoring your files (a clean install will delete all your files and applications), use the Migration Assistant.
I would recommend going to the Apple Store to do this because they can perform the clean install from a USB which is so much faster than the download form the App store.
Hope this helps.

USB thumb drive not recognized on nc6120 laptop

I had Windows XP Professional on my NC6120 Compaq laptop. Due to Microsoft saying it was an illegal copy I had to get a different OS. I purchased a Dell Windows 7 Professional and loaded it via the different prompts. Once loaded I had no sound, no mouse, no USB operative. I fiddle fooled around in spite of these assinine sites that say they have the driver you need as though they are legite and all I got was crap loaded that I did not want or ask for. After many hours of trying I finally got some sound recognigition, and the mouse to work. I still have some graphics problems and script problems along with the fact that the computer does not recognize a thumb drive in any of the USB ports. I have tried everything that I could find on the internet and HP, Intell etc and I am at a loss as what to do.
I am not a fan of Microsoft forcing me to upgrade or because of no support to XP anymore but like everyone else I am held hostage to this monopoly.
Can any one help to at least get the USB's to recognize an "E" drive using a thumb drive. Is it possible that this Compaq NC6120 laptop doesn't have the gears to run Windows Professional?
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Hi:
W7 should work on your model by using some of the Vista drivers from your notebook's support and driver page.
I have no idea why the usb ports aren't working.
Suggest you reinstall W7 and do the following...
1. Install the Intel chipset driver first and reboot.
https://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=20019&lang=eng&ProdId=816
2. Manually install the Vista graphics driver as follows...DL and run this file. You will get an unsupported operating system error.
http://h20564.www2.hp.com/hpsc/swd/public/detail?sp4ts.oid=447347&swItemId=ob_47264_1&swEnvOid=2094
Go to the device manager and click to expand the Display Adapters category. Click on the standard vga adapter.
Click on the driver tab. Click on update driver. Select the Browse my computer for driver software option and browse to the driver folder that was created when you ran the file. That folder will be located in C:\SWSetup\sp34749.
Make sure the Include Subfolders box is checked and the driver should install. Then reboot.
Audio: Be connected to the internet. Go to the device manager and click on the multimedia audio controller needing drivers. Click on the driver tab. Click on Update driver. Select the automatic search and after a few minutes, Windows update should find, download and install the audio driver.
Wireless: If your notebook has the Intel Pro 2200 B/G, manually install the Vista Intel wireless driver like you did the graphics driver.
Card reader: Use the vista driver from the nc6400.
Wireless assistant. Use the W7 driver from the 6910p
Quick Launch Buttons: Use the W7 driver from the 6910p.
Touchpad: Use the W7 driver from the 6910p.
If you need any other drivers, please let me know.
Oh, and if you don't like all the Dell stuff showing up on your PC, just download this plain W7 Pro 32 bit SP1 ISO file directly from Microsoft, and use the Dell W7 Pro product key on it.
http://msft.digitalrivercontent.net/win/X17-24280.iso Windows 7 Professional x86 English
Then use this tool to transfer the ISO file to a 4 GB USB flash drive or DVD.
The tool will also make the media bootable.
http://www.microsoft.com/en-us/download/windows-usb-dvd-download-tool?ClickID=arovv0vz55a0sszplnnzy...

USB Flash drive not showing on DT

Hi folks,
I received a USB flash drive with 2 GB capacity made by Super Talent (www.supertalent.com- look under Aluminum flash drives).
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Name : SKYMEDI USB Drive Media
Type : Disk
Disk Identifier : disk1
Media Name : SKYMEDI USB Drive Media
Media Type : Generic
Connection Bus : USB
Connection Type : External
USB Serial Number : 03
Writable : Yes
Ejectable : Yes
Mac OS 9 Drivers Installed : No
Location : External
Total Capacity : 2.0 TB (2,199,023,255,552 Bytes)
S.M.A.R.T. Status : Not Supported
Disk Number : 1
Partition Number : 0
Selecting HFS+ (journaled or not) or MS-DOS then clicking Erase gives me a spinning beach ball requiring me to Force Quit DU.
My config: G5 DP 2.0, 1 GB ram, 10.4.6
Any thoughts?
G5B DP2.0 & iBook366SE Mac OS X (10.4.6) Alu 20-in Display

hey there scan,
I gave the drive to a friend who has an iMac. Samething occurs: drive does not mount, DU erroneously reports 2 TB capacity and coughs up the beachball seconds after clicking on Erase to format it. He's on 10.3.9 while I'm on 10.4.6.
All the ports on my G5 are in working order as i use printer/scanner and iPod w/o problem.
Think the drive is going back.
Frank

Usb flash drive not mounting when inserted (SOLVED)

Hi,
I am (now) using fvwm-crystal with rox as my file manager and when i insert a usb flash drive in to a usb port nothing happens. I check /media and nothing is there. Yes i do have hal started at boot.
I reinstalled arch with xfce4.
Last edited by theringmaster (2007-10-09 20:28:42)

Well, there are the on-line manual pages:
man ivman
man IvmConfigActions.xml
man IvmConfigBase.xml
man IvmConfigConditions.xml
man IvmConfigProperties.xml
And there are examples in the default files (/etc/ivman/) provided with Ivman.
But that you probably already know. I'm not familiar with any other docs, except maybe tutorials on the net if you count them as docs

USB Flash Drive not working

I have purchased a USB FLASH DRIVE v112b 16GB on 26.12.13 from HP
dealer in Agartala. after using 2 months I'm facing problems with it.
Suddenly an error is showing " you need to format the disk before you
use it but format is not possible as another error showing format not
possible. what should i do now with it?
Please solve my issues asap.
Neal

Hi Neal2014,
Welcome to the HP Forums!
I would like to take a moment and thank you for using the forum, it is a great place to find answers. For you to have the best experience in the HP forum, I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I understand that you recently purchased a HP USB drive. You are now getting a message to format it, but are unable to. Have you tried to format it on a different computer?
If you are unable to format the drive, I suggest you call HP support, as I believe it will still be in warranty.
Please call HP technical support at 800-474-6836. If you live outside the US/Canada Region, please click the link below to get the support number for your region. HP Technical Support Sitemap
Sparkles1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!

USB Flash Drive not readable using 10.4.6 but is with 10.3.9

I noticed that a 32MB USB Flash Drive that used to work on my Powerbook when it was running 10.3.9 became unreadable when I upgraded to 10.4.6. This flash drive still works on my Dell WinXP system and I just tried booting the powerbook off a clone of my 10.3.9 setup (on an external firewire drive) and my flash drive works on that. So it appears to me that 10.4 has introduced a software bug that has disabled support for some flash drives. I will note that I also use a USB compact flash reader for transfering digital pictures and that does work under 10.4.6 so the problem does not affect all USB flash devices.
Is Apple aware of this? Are they working on it?
PB 1.5 GHz G4 15 Mac OS X (10.4.5)

Have you tried to open it in disk utility? Probably won't, but worth a shot. If not and you don't know who made it, then I'd say your out of luck. Probably time for a new Flash drive.
A 32meg Flash Drive today is very cheap if you can find one. You can get a 250 meg Flash drive for $20-$30. That's 8 times the storage you have now.

Formatting a USB flash drive for Mac OS X Leopard & Windows XP

I'm pretty new to Mac, so forgive me if this seems a very basic question.
How do I format a USB flash drive so that it can be seen by both an Imac running Mac OS X Leopard and a PC running Windows XP?
If one or other machine can't see the drive it makes transferring files really frustrating.
Your advice would be appreciated.
Thanks.

You can either use Windows or OSx to format the flash drive to FAT32. This will allow you to read and write from OSx and Windows. If you just bought the flash drive then double check before you format as it may already be formatted to FAT32.
Use Disk Utility from OSx to format your flash drive OR from windows, click on *My Computer* and then highlight the drive letter and choose File from the top menu and then Format.
Axel F.

Usb HP v250w USB Flash Drive not working

My name is goutam kundu and my new bought usb HP v250w USB Flash Drive is not working and not formatting also.Please provide me some information or to send the service center.

I have the same problem too. (USB was working on windows XP but no longer does but windows 7 is fine. ) I logged a request on the HP website and got an email from [email protected]
they suggested I try (as below)
Please try to use our repair tools (Uifx-I or Uifx-II) that maybe could solve the problem.
The URL: http://www.pny.com.tw/index.php?cls=2&mode=download
If you still can’t working of the USB .
Then will to provide further solutions, thanks.
I eamiled {Personal Information Removed} back with
I"ve used your appicaitona dn it was successful on my windows 7 machine
I've then put the USB into my winxp machine (which I had it working in previously)
and it is not recognised
but it does come up in the computer management section as below
And that was a month ago and I haven't heard from them since. I then emaield them and have had no response. but looking around the internet a lot of complaints exist regarding the v250w.

USB flash drive not recognized by Macbook Leopard 15.1

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