Mac no longer sees old external drive, or new external drive

I have been using a Seagate external drive for months. All of a sudden, my Mac doesn't see it in Finder (Or Disk Utility), and no longer mounts it. I bought a new Drive today and when I plugged it in, my mac doesn't see the new drive either. (WD My Book) I have seen a lot simular threads but nothing is working for me. Any help would be greatly appreciated

Does the time machine volume meet the requirements?
-internal drive, not start up disk
-XSAN volume
-USB drive
-fire wire drive
-eSATA drive
-network server via AFP (from machines running Leopard), including machines running file sharing
the volume must be formated as Mac OS Extended or Mac OS Extended (case-sensitive)
You can't use:
-Boot Camp partition
-iPod
-disk image
-AirPort Disk
-iDisk

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MacBook Air No Longer Sees Remote External Drive

I have an iMac with a FW800 connected external hard drive. I use it for Time Machine backups. Also use an Airport Extreme for wireless connection. My MacBook Air at one time was able to "see" that external drive via the Airport and I used it to backup the laptop with Time Machine. Now, all of a sudden, the MBA no longer sees the external drive. What has happened? I use the MBA only occasionally, and told Time Machine to backup only when I tell it to. So, LOTS probably has changed since the last backup. But, what change has broken this connection? My iMac sees it just fine and does Time Machine backups just fine. When I want to share the DVD drive of the iMac, that works as it should. I just can't see that dang external drive any longer. Both machines are at 10.5.6
Can you folks give me some places to start looking to get things working again?

Does the time machine volume meet the requirements?
-internal drive, not start up disk
-XSAN volume
-USB drive
-fire wire drive
-eSATA drive
-network server via AFP (from machines running Leopard), including machines running file sharing
the volume must be formated as Mac OS Extended or Mac OS Extended (case-sensitive)
You can't use:
-Boot Camp partition
-iPod
-disk image
-AirPort Disk
-iDisk

My G4 Mini no longer sees the optical drive....?

Hello,
Thanks for looking. I have a Mini that no longer sees any optical drive I install. It's an Apple OEM superdrive that the system profiler does not see, nor will any disc mount. I've tried and Apple OEM combo drive too. I'vre reset the PMU and done a "pram" reset too. External DVD-R drive works.. but nothing internally.
Thanks for any help.
Dave

DaddyPaycheck, thankyou for the reply. It appears there might be some physical damage which worries me. But what perplexis me is that the drive receives power... it takes the disk (won't eject it.. even on restart, but it takes the disc), and when I boot into open firmware, I get "unable to eject the drive volume"... or something like that... The point being that it appears to believe that there is a drive, but doesn't know what to do with it.
That being said...it still won't recognize in the ATA of the system profiler.
Dave

After updating to Maverick on my MacPro it no longer sees both CD drives Help

After updating to Maverick on my MacPro it no longer sees both CD drives
Can anyone help?
When I hit the eject key only the bottom drive ejects........
Thanks
[email protected]

Thanks to everyone for your thoughts on my problem...........
zapping the pram did the trick!
Ronz....
[email protected]

Clone no longer sees MBP internal drive

When I boot up from a clone on an external drive, the internal drive of my MBP no longer appears in the Finder -
nor does it appear as a startup disk in System Preferences.
In fact, none of my clones are recognising the MBP any more.
The MBP drive is only 3 months old, and Apple branded, and all drives are formatted OS Extended (Journaled).
Everything was working perfectly until recently - without there being any changes to the setup as far as I know.
Any idea what’s happened, and how to fix it?
It’s a mid-2009 MBP running 10.9.4.
(I originally posted this in the Mavericks forum, but maybe it's even more relevant here.)

Apple does not produce any drives on their own - so any "Apple branded" drive would be manufactured by a third-party.
Have you tried booting into your Recovery partition (hold down the command and R keys whilst booting) and using Disk Utility to Verify and, if needed, Repairing your internal drive? Does your machine boot with all of your clones as well as your internal drive, but does not show up on the Desktop when booted from a clone? Have you used Disk Utility to see if the machine actually 'sees' the internal drive?
Call back,
Clinton
MacBook Pro (15-inch Late 2011), OS X 10.??, 16GB Crucial RAM, Crucial M500 960GB SSD, 27” Apple Thunderbolt Display

Time Machine no longer sees my External Hard Drive

I am running an Apple iMac 27" Intel Core 2 Duo 3.06GHz with MAC OS X v.10.6.4
I have been using a LaCie 500GB External Hard Drive exclusively assigned to my Time Machine Backups. This has been working fine for the past 6 months. Now, this USB externally powered hard drive no longer shows up on my desktop. It no longer shows up in the Finder either.
Where it does show up is in the Apple Menu: About This Mac | More Info... | Hardware | USB | USB High-Speed BUS as "LaCie Hard Drive USB" with all of its specifications:
LaCie Hard Drive USB:
Product ID: 0x0951
Vendor ID: 0x059f (LaCie)
Version: 0.00
Serial Number: 152D203380B6
Speed: Up to 480 Mb/sec
Manufacturer: LaCie
Location ID: 0x24300000
Current Available (mA): 500
Current Required (mA): 2
HD appears to be spinning and emits a steady vibration that I observed before when it was working fine. One single soft click is heard on startup. Yellow solid light indicates drive is operational. I never see a blinking light when this HD starts up, it shows a solid yellow light right away.
From a "Time Machine Widget", I see that my Time Machine backup is failing with message:
Error -35 while resolving alias to backup target
Backup failed with error: 19
When I go to Apple Menu / System Preferences / Time Machine, I see that the Time Machine is turned ON with this information:
Name: Time Machine Backups
Available: <empty>
Oldest Backup: <empty>
Latest Backup: Delayed <--- this is in red
Next Backup: when disk is connected
To resolve my problem:
I tried shutting down & restarting the MAC while the Ext. HD was turned ON but it refuses to appear.
I tried unplugging & replugging at the USB connection but MAC does not respond either way. No nasty message for having improperly disconnected a drive and no message to acknowledge a newly connected drive. The drive is totally ignored.
I can't use the Disk Utility tool to verify or repair the HD because the drive does not appear on the left pane.
Before I declare 6 months of Time Machine backups as forever lost and buy a new backup drive is there anything else I can do?

W e e e e l l l l l or should I say wheeeeeieeeee! Solved - Thank You
I could not use "Disk Utility" because as I already stated, it did not show the HD on the left pane to allow me to do anything about the invisible drive.
So I followed through with your suggestion to switch the USB cable. This was an easy thing to do as I happen to have another of these LaCie Drives that I use on another of my computers. I turned the faulty drive OFF, switched the cable (the power cable fell off in the process & I plugged that back in), turned the HD back ON, waited about 30 seconds and the MAC recognized the drive and popped it back on my desktop & Finder, then Time Machine started the Backup.
I did not have to restart the MAC.
I was skeptical that the USB cable could be the culprit but indeed it was!
Time Machine completed its backup while I was writing this.
Problem Solved and Thank you k.panic

Mac no longer sees external USB audio device

Under System Settings/ Sound, I no longer see my Yamaha Audiogram 3 listed as an input OR output device. When plugged into the USB connector, I have power to the device. I tried a different USB port... same thing. I reloaded the driver, rebooted still no luck. Any help is appreciated.

I am also having this problem as it seems recent it may have something to do with updating to the new OS i think it was... 10.6.5?... I have also tried reinstalling Yamaha drivers and a few other things but with no luck.
if anyone has had a similar issue resolved please post, it seems a few people are having this problem

AEBS no longer "sees" SUB hard drive... help please.

Purchased a new aluminum iMac, MacBook for the wife, AEBS, and a 250GB SimpleTech Pininfarina USB drive about 3 months ago. All have worked flawlessly until today. AEBS will not recognize the USB drive as of today. Powered everything down, started everything back up, still nothing. Tried using the AirPort Utility, nothing the utility does not show the drive at all. Plug the USB drive directly into my iMac and it mounts and works perfectly. Plug it into the AEBS, nothing.
What changed today to make it stop working? Anyone have this issue or have a fix? This is quite maddening. All solutions appreciated.
The USB drive is formatted Mac OS Extended (Journaled)

Hi Starrainne
If your logic board is defunct, it may not be possible to access the Hard Drive through Firewire Disk mode.
How to use FireWire target disk mode, but that would be the first thing to try as you may save yourself having to remove it.
If you can make no connection with the hard drive through that method then the next option is to physically remove the HD from the eMac, which is partly shown in these pictures.
http://www.wilko.com/emac/
The HD is attached to the entire logic board assembly which also has to be removed.
Once removed you would then house it in an HD enclosure, examples are shown here:
https://eshop.macsales.com/search/HD+enclosure
effectively making it an external Hard Drive.
With the HD in the enclosure, connecting it to the MacBook via a Firewire cable it will appear as another volume. In this instance you do not need to use Fire Target Disk mode to see it, as it is now removed and you are not required to boot into it. It will just appear as another volume on your Desktop allowing you to copy the data off your old drive and onto your MacBook.
There will be quite a bit of work involved doing all of this, mainly because your eMac is such a compact and integrated product that will take some patience to dismantle.
regards roam

Imac no longer sees Back up drive

Hi there,
Apologies if this topic has been covered already but I have been searching through related posts and have come to the conclusion that my back up hard drive is knackered. Can someone confirm this please?
I am a photographer and keep all my images on the imac (mid 2010 27") on Aperture, backed up on a La Cie 1TB external Hard drive.
Today the Imac stopped seeing the hard drive when I switch it on, yet it sees it still in disk utility. When I tried to verify, it stated - it needed repair, yet when I tried to repair it it said - can not repair disk and recover backup.
Now the disk utility doesnt recognise the hard drive at all. I have tried it in all the USB ports with the same result.
Am I to assume that the drive has finally had it?
Is there any way that I can recover whats on it?
Yours hoping for a miracle.
Stuart

Arthur,
Many thanks,
It was your suggestion re removing the drive from the case that worked.
All I actuallly had to do was remove the plastic cover from the drive, which seems like madness to me. So I sat it naked on top of the table, plugged it back in, switched it on and voila, the icon popped up on the desktop again. Go figure!
I was however able to retrieve my files. I have now started a new backup on another drive which will take the best part of 48hrs to complete and I'll see how the old disk performs with the lid off for a while but I think its probably on its way out.
Regards
Stu

PCS no longer sees BT Widcomm driver

Hi
[cross-posted in Connections]
I have a 6230i and a Safecom BT dongle using the Widcomm 1.4.2 build 10 BT driver s/w on Vista.
This all used to work OK, but after installing PCS v6.85.14.1, the Nokia Connection Manager now no longer shows the Bluetooth (Widcomm) option - just the Bluetooth (Microsoft) option. If I try to check the MS option, I get the "Cannot use the connection type ... Code (OpenMedia)" error.
I've tried all sorts of repairing and uninstalling BT & PCS s/w but to no avail.
Any ideas why PCS no longer seems to recognise the Widcomm BT driver?
Message Edited by mrb08 on 17-Feb-2008 10:26 PM

Just to close this off here's my post in the other thread.
Yes I finally managed to confirm that it's a PCS bug. Here's what I did.
It appears that PCS cleaner app does not support Vista nor later versions of PCS. After uninstalling all Nokia s/w from my PC, checking no old Nokia folders remained, cleaning the registry and then reinstalling PCS 6.85.14.1, the "Cannot use the connection type ..." error remained. :-(
Then I managed to find an old download of PCS (v6.82.27.0) and after installing that, the connection error is gone and the Bluetooth (Widcomm) option is back in Connection Manager! :-)
How does one report a PCS bug to Nokia?

PCS no longer sees Bluetooth Widcomm driver

Hi
I have a 6230i and a Safecom BT dongle using the Widcomm 1.4.2 build 10 BT driver s/w on Vista.
This all used to work OK, but after installing PCS v6.85.14.1, the Nokia Connection Manager now no longer shows the Bluetooth (Widcomm) option - just the Bluetooth (Microsoft) option. If I try to check the MS option, I get the "Cannot use the connection type ... Code (OpenMedia)" error.
I've tried all sorts of repairing and uninstalling BT & PCS s/w but to no avail.
Any ideas why PCS no longer seems to recognise the Widcomm BT driver?

Hi,
i have the same exact problem, i used to have the old version of nokia pc suite which worked fine. but one day i updted the suite and then the connection manager failed to recognize the widcomm driver..i tried everything .. uninstalling and reinstalling the suite, the driver everything. notice that the ms bluetooth places can see the mobile and connect to it .. but i need to sync my calender through ms outlook.
i have posted my problem /discussions/board/message?board.id=connectivity&thread.id=13360
but no reply at all .. i believe its a bug in the nokia pc suite.
good luck

ITunes 10 (Mac) no longer sees my iPhone 4

iTunes no longer thought it was installed on my computer. I installed it, I re-associated my music, and then I tried to sync my phone, but because I manage music manually, I was getting an error message. I called Applecare to see what the error message meant. After 45 minutes on the phone, we determined that I could sync my phone, and then just restore it to the most recent backup.
Before I did that, I transferred my purchases from the phone to iTunes one more time to be safe. When I had time later, I sat down to begin the sync process.
THat's when iTunes stopped seeing my phone. It connects and I see the little wheel turn, but then it disappears. image capture launches and connects to my phone, and in the iTunes *menu* it sees my phone, just not in the sidebar.
I tried right-clicking on it to start the restore process as soon as it showed up in the sidebar, but that didn't work.
I have updated iTunes.
I have re-installed iTunes (although in Lion you can't delete it completely so all I could do is install it over the existing version of iTunes).
I have gone through all of the checklists in the support section. I have changed the cable, I have changed the USB port, the phone is fully charged.
I spent half an hour on hold yesterday with Applecare and never got through to a tech. In order for me to actually be able to get on the phone with them, it means that I have to use my boyfriend's phone for however long it takes, and he's not always home when I have time to call Apple.
Anyone got any other ideas? Every other document I have found in the KB is for pre-Lion. I cannot find anyone else that this is happening to that is on a Mac and on Lion and on iOS5 and the latest version of iTunes. What am I missing?

Help that came up after I posted had a solution: http://support.apple.com/kb/TS1538

Since installing lion, my mac no longer recognises my external hardrive also my ipad and iphone no longer automatically start itunes.

since installing lion, i can lo longer go to "my imac" and find external hard drives and other devices i plug into a usb hub. my ipad and iphone don't automatically open itunes only iphoto. my external hardrive used to also load automatically, now it doesn't and when i plug it in i can't find it. need some help i have some importanr things i need to transfer.

Try repairing the disk with disk utility, take a look at this link, http://support.apple.com/kb/HT1782

Mac no longer sees 2G iTouch

After syncing fine for months, my Mac Mini last week reported an "unknown" error after trying to sync with my 2G iTouch. Then it suddenly stopped detecting the iTouch altogehter. The facts are these:
1) iTunes 8.2.1 (6)
2) OS X 10.4.11
3) iTouch OS 3.0 (7A341)
4) iTouch model MB528LL, 7 Gb
5) Mac detects and syncs with other, non-iTouch ipods (nano2, nano3, shuffle) with no problem.
6) Mac does not detect iTouch at all. iTouch will not even charge off Mac
7) iTouch is detected, interoperates with and can be charged by old HP computer running Windows XP with no probelm.
8) Have rebooted the iTouch several times to no effect.
9) Have reset all settings on the iTouch to no effect.
10) Have tried connecting using several different cables (all of which have worked fine in the past) to no effect.
11) iTouch works fine in all other respects. I can charge it off the PC or by using a standalone charger. Can download apps, get updates, get email, surf web. Just can't by seen by the Mac anymore regardless of which cable I use.
Wondering if this has something to do with upgrading to OS 3 on the iTouch. Problem started after that. Am I supposed to change a setting in the iTouch or make some change on the Mac in order to have the Mac recognize the iTouch after the upgrade?

Welcome to Apple Discussions
As you may have discovered, just because the other iPods sync, your touch doesn't. The reason for this is that the touch and iPhone use something named Apple Mobile Device Support to handle the communication between iTunes and the touch.
The following article will tell you how to completely remove iTunes and associated pieces of software before reinstalling iTunes and correcting the problem: http://support.apple.com/kb/HT1747
This should correct things but to be totally sure, restart your Mini before you try connecting your iPod again.

System no longer "sees" my DLT drive - Adaptec card seems to be fine though

Hoping for help before going the route of purchasing new cable, etc.
I need to format a dual layer job for replication onto my DLT 7000 tape drive but DVD SP3 says the drive is not connected. I un/re-plugged all, made sure to start DLT first and let it go through all it's motions but still no good. System profiler sees the Adaptec 2930CU card and when I connect to my Epson scanner (different cable needed than the DLT drive) it works fine. So I have little reason to doubt the Adaptec card and it always worked before with this DLT drive. I had to loan out the Adaptec card to a partner while I was out of town a few months ago and we have not had any jobs requiring replication since then.
The system profiler does not see the DLT and obviously nor does DVD SP3 at this time. Is there some chance a setting/extension was thrown off by disconnecting the card and putting it in another G4 then returning it in it's former slot.
Thank you in advance for any support.

Hal,
Sorry for the delay to get back to this post.
Your help is appreciated.
I have made sure after unplugging all concerned components to start the DLT drive first before turning on the G4.
I have removed the Adaptec card from my computer and given it along with the DLT drive and cable to my partner (as it last worked on his G4 - while I was on vacation/business travel). He reports the same problem. We will be purchasing a new cable today in hopes that will resolve the problem.
I hope it is not firmware/software related as that type of problem is usually a recipe for getting to know how poorly supported that aspect of troubleshooting can be when it comes to vendor volleyball.

Mac no longer sees old external drive, or new external drive

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