Sd card read only

Hi Everybody!
I have a Lexar Multi-Use 8gb memory card.
When I plug it in through the air's memory card slot, it says it is read only. I have double checked to see if the card switch was on lock, and it is not. Now the confusing part is that I can not reformat the card, or repair permissions through terminal or through disk utility.
But then when I plug the memory card into the camera, and connect the camera to the computer via usb, the only program that can delete the photos is image capture.
Has anybody else had a similar problem, or know how to fix this issue?

izzmann56 wrote:
Disk utility won't let me reformat it though.. It will ONLY let me verify permissions. Nothing else.
Can you do a low level format on your camera? If not then you may have a card that is failing. Many years ago I had a SanDisk 1GB micro that failed and the first sign of failure was the inability to format the card but I could still write to it.

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SD Card read only [Solved]

Hi,
Do not think its an Arch related problem but I have an SD Card which will only mount read-only
mount: block device /dev/sdh2 is write-protected, mounting read-only
mount: wrong fs type, bad option, bad superblock on /dev/sdh2,
missing codepage or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
It states card is write-protected it not write locked, of course not being able to write to the card I cannot reformat it.
Just wondered if card was faulty? or can I repair the filesystem on it? [ext3]
Thanks
MrG
Last edited by Mr Green (2008-02-03 09:08:31)

Wow thanks for that seems to be able to read from device not sure if it will repair it..../me reads manual
managed to read data off device and use a loop to mount to a directory
only thing is I still have no access to device I really hope its not faulty ;-(
Last edited by Mr Green (2008-01-06 14:52:47)

Can we make the time card read only in OTL?

Hi All
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Kiran,
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Both the internal Sd reader on my iMAC and a usb external reader read all cards as read/only. If you go to get info, you can't change this setting. In Disk Utility you can't do anything, everything is greyed out. When you insert a card into either reader and then remove it with ejecting, I don't get the error message telling me to eject before removing.
Any ideas any body?
Wayne
<Email Edited By Host>

There was a thread from 2009 about this problem: it seems that some sd cards (and/or perhaps some sd card slots) get confused, and indicate read only with the switch at either end, but will indicate read/write status with the switch midway between the ends (perhaps a little bit more toward the unlocked end). This sounds strange, I know, but it worked for me today, with a brand new 64GB card (the first one I've ever used in my 21 month old MBP, which indicated read-only with the switch at either end, but became read-write with the switch in the middle.

Flash card read only

I have not been able to write to 2GB SD flash cards. They attach as read only devices. I have tried two different manufacturers, Kingston and Crucial. Both of the cards are FAT 16 formatted. I can read and write to some 512MB SD flash cards that I have. Is there a size limitation? I did not see anyone else with this issue when I searched the discussion groups. Any help is appreciated.

A bit late for the original poster, but ... for anyone else searching for help now, like I just have:
I've just had the same problem, thought it was because I recently installed Leopard. Checked the Lock switch on my SD card, and it was set to allow writing.
In the end, I tried flicking the switch on the card to Lock, then back, and that resolved the issue. The internal mechanism must have been in a different position to the visible switch.

SD Card Reader only works on restart

I have a 21.5in Mid 2010 iMac running OSX 10.8.4 (Mountain Lion). If I start it with an SC card in the slot, the card is mounted (and the drive and card show up in Disk Utility). If I eject it then re-insert it, it won't mount (and doesn't show in Disk Utility). On restart, it shows up again.
I have read and tried various suggestions on the Apple Forums, and none of them have worked.

I examined the system log as I unmounted the SD card (visible since a reboot) and found the information about the unmounting of the card. When I re-inserted the card, nothing happened. No further log entries. Here is the log (with an interesting error about the LSOF being 'left open':
Jul 28 14:05:31 marks-imac com.apple.SecurityServer[15]: Succeeded authorizing right 'system.volume.removable.unmount' by client '/System/Library/CoreServices/Finder.app' [171] for authorization created by '/System/Library/CoreServices/Finder.app' [171] (100013,0)
Jul 28 14:05:31 marks-imac com.apple.SecurityServer[15]: Succeeded authorizing right 'system.volume.removable.unmount' by client '/usr/sbin/diskarbitrationd' [16] for authorization created by '/System/Library/CoreServices/Finder.app' [171] (100002,0)
Jul 28 14:05:31 marks-imac mds[40]: (Error) LSOF: File '/Volumes/CANON_DC' (fd=10) left open on device 16777221
Jul 28 14:05:32 marks-imac com.apple.SecurityServer[15]: Succeeded authorizing right 'system.volume.removable.unmount' by client '/System/Library/CoreServices/Finder.app' [171] for authorization created by '/System/Library/CoreServices/Finder.app' [171] (100013,0)
Jul 28 14:05:32 marks-imac com.apple.SecurityServer[15]: Succeeded authorizing right 'system.volume.removable.unmount' by client '/usr/sbin/diskarbitrationd' [16] for authorization created by '/System/Library/CoreServices/Finder.app' [171] (100002,0)

Used my card reader to import images, now see "incompatible JPEG" on images in camera

I have a Canon Power Shot A720 and used the card reader to import photos into the organizer. Now when I go back to erase some images from the camera I see many, but not all, of my 'once' images blacked out with a grey/white box in the center & a yellow question mark. Under the box it says "incompatible JPEG". What does that mean? It's never happened to me before, but I usually import my images directly from the camera.

Hi,
I'm not sure I understand your question since it's been a while since I had
trouble. When I had the trouble I was downloading from my camera and
storing them in the Organizer. My problem came when I edited those images
and RENAMED them. I guess the organizer didn't recognize the renamed
photos? Those were the images which had the yellow check mark. I now use a
card reader only, and I store them in 'Pictures' instead of the PSE
organizer. I haven't had any more problems. I think the Organizer, when
used properly, would be the best choice.....I just couldn't figure it out!
Frankly, I just didn't understand the Organizer and was used to my own
method for storage. I think that's what messed me up. I had help from a
computer technician to retrieve those images, and I haven't had any problems
since.
As for deleting images, I only delete images from my camera by using the
delete on my camera. I never, never delete from my card/camera by using the
prompt from my computer, like "do you want to delete these images from your
camera?"
Good luck!
Donna
I don't if I helped you at all. You're welcome to write back or hope for a
really good explanation on the forum boards.

SDCARD reader Read-Only

I have a 2012 Macbook Pro 13inch 2.5 GHz, 4GB Ram, 500GB HDD. Upgraded to Yosemite 10.10 and was looking to put Magic Lantern on a Canon camera, so I put the SDHC card in the card reader only to find that it sees the card as read-only. The lock button is in the off position (meaning it should be able to read and write to the card).
Have reset both the SMC and PRAM to no avail.
Just curious if I missed something with the 10.10 update. I have tried two different cards: One is an SDHC and the other not. Any help or guidance would be appreciated.

Never reformat a camera's memory card using your Mac — always reformat the card or delete pictures from it using your camera's menu commands, not the Mac. A card that's been formatted on a Mac or had pictures added to or deleted from it by a Mac is likely to be found unusable by many cameras. Reformatting in the camera usually resolves that problem.
As for your card being seen as read-only by the Mac, that's not a drawback if you adhere to the practices I've recommended above. But if you want to use an SD card for something other than uploading photos from your camera to your Mac, then it's a pain, and the problem ha been reported here a number of times before. For some people, inserting the card very fast into the SD slot has remedied the problem. Others have found that they need to push the card slightly upward, downward or to one side or the other while inserting it, rather than just pushing it straight in. Still others have found that certain cards' locking sliders bind against the side of the slot and get pushed into the locked (read-only) position as the card is inserted. You can experiment with all these ideas and see what happens, but in some cases just switching to a different brand of card has been the answer. And while it's irksome to contemplate resorting to a USB card reader when you have what ought to be a perfectly good SD reader built into your computer, for some people that has been preferable to relying on an unreliable SD slot.

I have both i hoto and apeture on sidebar. When I try to open apeture the dot appears it bounces but won't open. Only if I transfer a photo from i-photo or my card reader? Any suggestions.

Apeture software. It won't open from the sidebar where i-photo lies also. Only when importing photos from i-photo, or card reader. Can anyone help with suggestion.

Hi Iolenslooker,
Welcome to the Support Communities!
It's possible you may need to replace the shortcut to Aperture that is on your Dock. I would suggest first closing both applications. Then open Finder, and in the Applications folder, double click on the Aperture application. If the Aperture launches, then you can delete the shortcut from the dock, and create a new one by dragging the Aperture icon from the Applications folder to the dock. The article below will explain more:
Mac Basics: The Dock
http://support.apple.com/kb/ht2474
To remove an item from the Dock, drag its icon an inch or more off the Dock and wait a couple seconds, then release; the icon will disappear in a poof of smoke.
Don't worry, you aren't permanently removing the item from your computer; you simply got rid of its Dock icon. If you want that item back in the Dock, locate the application, file, or folder in the Finder (or with Spotlight), and drag it back into the Dock.
Cheers,
- Judy

Read-Only SD Card(s) - used to be able to read/write

Hello all,
I have searched teh forum and found a few similar threads but I believe my case is different.
For all 3 of my SD cards, they appear as read-only in my MBP (running 10.6.8), whether I connect them via the built-in card reader or via my camera (Panasonic GF1) hooked up to my MBP via USB.
I used to be able to import photos into iPhoto and then delete them from the card but this does not work any more (I do not even get prompted any more) as the card(s) is now read-only (Get Info tells me "Sharing & Permissions: You can only read"). Indeed if I try to delete, drag and drop a file onto it or even erase from disk utility, it will not let me.
Now, most threads dealing with this issue point to the card reader being faulty (or even the lock switch being in the wrong position). I am fairly sure this is not the case here as:
1) the behaviour occurs both through the built-in card-reader and the camera connection and
2) the camera does not "think" that the card is read-only, it can take new pictures, delete or format the card (note that I tried to "lock" the card with the switch and in that case the camera complains and cannot do anything with the card).
Moreover this occurs with all three cards.
On the other hand, my IPhone connected via USB is not locked to "read-only" (for example IPhoto asks me and does delete photos after import).
Thanks very much for any help on this - this is very puzzling!

If you are using a DSLR camera, like for example a Canon 60D, there may be an option to use a "Low-Level Formatting" on the card. This should make it writable when putting it into the computer.
To test this (and confirm it works) I did the following:
Hardware Used:
Canon 60D camera body
Sandisk 32GB SDHC Extreme Card
Macbook Pro 15" (mid 2010 model) with built-in SD card slot.
Steps:
Place SDHC card into camera (SD card may work as well). Navigate through menu until you arrive at settings that allow the camera to format the card. There may be an option to format it "low-level", which you would then select.
-Note that all files on card will be erased permanently.-
After the camera formats, eject the card from the camera, and place inside the built-in SD slot on the Macbook.
The card should automatically mount, containing both read and write priviledges.
Hope that helps.
~Charlie~
Owner/Founder HotTips! LLC
http://hottipscentral.com

SD card is suddenly read only (and it never used to be before).

I'm not tech-svvy at all, so I'll try to be as detailed as I can with my problem and hopefully some patient soul will be able to give me some step by step instructions on how to fix this haha.
I've had my MacBook Pro for about a year now and I haven't had a problem with transfering photos from my phone and camera onto it. My camera has an SD card and my phone has a Micro SD.
As of a few days ago, I've noticed that when I insert my SD card into the slot, there's an icon to the top left side of the window when I open it that never used to be there. It kind of looks like a pencil with a line going through it, but it still let me transfer photos to my computer, so I didn't think anything of it.
When I tried to transfer photos from my phone's Micro SD, it does the same thing. I can still transfer pictures to the computer without a problem.
The issue becomes when I want to transfer photos from my computer to the card for my camera or the one for my phone. I've tried to look through similar questions on here and elsewhere on the internet, but all I've been able to gather is that the little pencil with a line through it means my cards are in "Read Only" mode as opposed to the "Read and Write" that they should be in.
I don't recall making any changes to any sort of settings on this computer and I haven't had any recent updates to the software.
Also, none of the cards are locked. I know there's a little swtich to the side of them that manually makes them read only, but I never touch them and they're always 'unlocked' as it were.
Can anyone guide me through getting these settings back to the way they were?
(Since I'm technologically illiterate, I have no idea what operating system I'm on, so I apologize if this is an important factor in helping me.)

The contact inside the SD card slot could be dirty. you can try to clean them by shutting the system down, get some electrical contact cleaner and put a small amount on the SD card contacts and push it in and out a few times. Let it dry for a few minutes (most of these type contact cleaners alcohol based and dry fairly fast) and power up the system. See if the cards are now Read+Write.
Also check the cards to see if the little switch hasn't been pushed into the Lock setting.
Even though these card may work in your camera and or phone they may be at the end of there life cycle. Try a NEW card and see if that makes a difference.
As a last resort you can always buy a external card reader and connect it to a USB port.Some SD cards come with a small SD card reader that plugs directly into a USB port. The only problem I've had with them is that some of them do not go in all the way on MBPs. The case of the MBP stops them from inserting all the way and or if you have something else plugged in to the other USB port there isn't enough room, right to left, to insert another device. Or you could spend some more money and have Apple Care fix it, that is if none of the above work.
Good Luck.

Vivitar Media card reader. Read only?

Hello
Everyone I have a Vivitar Media card reader and every card I put in shows up read only? Any ideas?

Never reformat a camera's memory card using your Mac — always reformat the card or delete pictures from it using your camera's menu commands, not the Mac. A card that's been formatted on a Mac or had pictures added to or deleted from it by a Mac is likely to be found unusable by many cameras. Reformatting in the camera usually resolves that problem.
As for your card being seen as read-only by the Mac, that's not a drawback if you adhere to the practices I've recommended above. But if you want to use an SD card for something other than uploading photos from your camera to your Mac, then it's a pain, and the problem ha been reported here a number of times before. For some people, inserting the card very fast into the SD slot has remedied the problem. Others have found that they need to push the card slightly upward, downward or to one side or the other while inserting it, rather than just pushing it straight in. Still others have found that certain cards' locking sliders bind against the side of the slot and get pushed into the locked (read-only) position as the card is inserted. You can experiment with all these ideas and see what happens, but in some cases just switching to a different brand of card has been the answer. And while it's irksome to contemplate resorting to a USB card reader when you have what ought to be a perfectly good SD reader built into your computer, for some people that has been preferable to relying on an unreliable SD slot.

Permissions on Android AT200 removable SD card set to read only

Recently the removale SD card on my at200 has been set to read only for all but a few applications. This mean that when editing or trying to save, copy docs on the SD card I get the "not enough permissions" message. Any editing by these applications requires shifting files to onboard SD card and back again.
Toshiba file manager is able to rw OK, but my other file manager fails, as does ezy PDF.
Reading the attributes of the SD card show that it is set to rw for data.p (permissions XML). But looking at info from file manager shows sdcard directories and files set to dr- or -r-.
Is there some way of getting this changed to allow access for all my installed apps? Or even some?
Cheers
rabel

MisterX,
Found this note from zc2 on the xda forum dealing with the same issue December 2011.
"The owners of Honeycomb-powered tablets experience a problem writing to the external SD card, because since v3.2 the permissions for the files there were changed from sdcard_rw to media_rw.
According the file /system/etc/permissions/platform.xml, any application with declared permission "android.permission.WRITE_MEDIA_STORAGE" should be included to that media_rw group.
But that won't happen.
I made a test application to show the group membership (it just executes the "id" command), and according to its output, the application is not member of the media_rw group, despite the "android.permission.WRITE_MEDIA_STORAGE" permission is mentioned in its manifest.xml"
This is somewhat confirmed by a comment returned to me from the AntTek File Explorer developers on an interum work around for this problem (a common one since 3.2)
"While waiting, the simple solution, if your device is rooted, is as follows:
1. Using AntTek File Explorer, active Native mode from application preference.
2. Navigate to /system/etc/permissions.
3. Open platform.xml and find the WRITE_EXTERNAL_STORAGE permission.
4. Add an additional group definition for this permission: <group gid="media_rw" />. It will grant AntTek Explorer (and other applications) permission to writing to removable SD Card. After edited, it will look like:
<permission name="android.permission.WRITE_EXTERNAL_STORAGE">
<group gid="sdcard_rw" />
<group gid="media_rw" />
</permission>
5. Save the changes to the file.
6. Restart your tablet."
My tablet is not rooted so this was not available to me, but it appears this is a major issue for Honeycomb, including the version on the AT200. Is there any plans to fix this bug do you think? Or is there a date for the promised update to ICS for the AT200, another prime selling point.
Cheers

Hi anyone. Can I buy an SD card reader for my old Powerbook G4, OSX, 10.4.11 and it's only USB. I've never needed one previously but I now need to update the firmware on my camera. Can I get one, if so which one's best? Many thanks.

Hi anyone.
Can I buy an SD card reader for my old Powerbook G4, OSX, 10.4.11 and it's only USB.
I've never needed one previously but I now need to update the firmware on my camera.
Can I get one, if so which one's best? Many thanks.

Hello,
If it is a PowerBook G4 with a PC Card slot, you have two possibilities. You could buy a USB card reader for SD, or a PC Card adapter (such as SanDisk's 6-in-1adapter). Please note that you are or may be limited to plain SD (that is, not SDHC) unless otherwise noted. For a USB reader, make sure that it has Mac support. BTW, is an SD card absolutely necessary for the firmware update; is there not a way of updating via cable? If you post back with the camera model, someone may be able to provide additional information.
Jan

Sd card read only

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