Sidebar Sidebar
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

Micro SD read error

T

thor666

macrumors newbie
Original poster
Apr 20, 2014
4
0
Hi there people I am pretty much computer illiterate so please be a little patient with me if I'm being silly but>>>>>>

I have this issue when I insert my (SanDisk) micro sd card "The disk you inserted was not readable by this computer." with no option to "initialise" just "ignore" and "eject".

I don't know if it makes any difference but it was last in my GoPro Hero 3 Black edition.

Any help would be really appreciated.

Thank you

Joel
 
thor666 said:
Hi there people I am pretty much computer illiterate so please be a little patient with me if I'm being silly but>>>>>>

I have this issue when I insert my (SanDisk) micro sd card "The disk you inserted was not readable by this computer." with no option to "initialise" just "ignore" and "eject".

I don't know if it makes any difference but it was last in my GoPro Hero 3 Black edition.

Any help would be really appreciated.

Thank you

Joel
Click to expand...

Hi , please tell us what version of OS X are you running ( upper left corner of your desktop - apple - About this Mac ) e.g. 10.6 , 10.7 ...And which MacBook do you have. You should look at your memory card too , there's a capacity written on it - 32,64gb...
 
sorry I didn't think about that ..................

Its a:
MacBook Pro
13-inch, Mid 2012
Processor 2.5 GHz Intel Core i5
Memory 4 GB 1600 MHz DDR3
Software OS X 10.9.2

its a 64gb memory card as well


I hope thats the right info

thanks
joel
 
OK , it seems to be not a problem with hardware or software. The next thing - check what kind of filesystem is on the SD card ( disk utility - your card - filesystem )
 
Name : Apple SDXC Reader Media
Type : Disk

Partition Map Scheme : Unformatted
Disk Identifier : disk1
Media Name : Apple SDXC Reader Media
Media Type : Generic
Connection Bus : Secure Digital
Device Tree : IODeviceTree:/PCI0@0/RP01@1C/SDXC@0,1
Writable : No
Ejectable : Yes
Location : Internal
Total Capacity : 32.1 MB (32,096,256 Bytes)
Disk Number : 1
Partition Number : 0
S.M.A.R.T. Status : Not Supported



Like that ?
 
Yes like that.So the partition (card) is currently unformatted with no filesystem and no files on it.If are you sure you dont have any files or videos on it recorded by the camera etc. , go to disk utility , click (highlight) the card , go to erase tab ,click on the format and select MS-DOS(FAT) and then erase.This should be working and you will see your card as a usual drive in finder.
 
Your card is unformatted, that is why it cannot be read.
It is also 32GB not 64GB.
Go to Spotlight (the search bar top right of your screen.
Type Disk Utility and then click on it in the list that appears.
With your SDXC card inserted you will see it on the left of the screen that opens.
Click on the card, then choose the erase tab on the right.
If you want to be able to read and write to it on a Windows machine as well as Mac choose MS-Dos FAT from the format menu.
Then click erase (bottom right).
Once it has finished you will be able to put files on it.

Barney
 
it is definitely a 64gb card as it states on the card its self.

There are some videos and pictures on the card from my recent holiday and when the card is highlighted the erase option and several of the others are sort of "greyed" out so I can't select them.

thanks

joel
 
thor666 said:
it is definitely a 64gb card as it states on the card its self.

There are some videos and pictures on the card from my recent holiday and when the card is highlighted the erase option and several of the others are sort of "greyed" out so I can't select them.

thanks

joel
Click to expand...

Relabelled cards are pretty rife in some places (64GB label on a 32GB card). Does the Go Pro see it as a 64GB card?
 
thor666 said:
Name : Apple SDXC Reader Media
Type : Disk

Partition Map Scheme : Unformatted
Disk Identifier : disk1
Media Name : Apple SDXC Reader Media
Media Type : Generic
Connection Bus : Secure Digital
Device Tree : IODeviceTree:/PCI0@0/RP01@1C/SDXC@0,1
Writable : No
Ejectable : Yes
Location : Internal
Total Capacity : 32.1 MB (32,096,256 Bytes)
Disk Number : 1
Partition Number : 0
S.M.A.R.T. Status : Not Supported



Like that ?
Click to expand...
That shows it as only 32MB:confused:
Just out of interest how much did you pay for it?

Barney
 
I have a same question with you guys...help!pls!

Name : Generic Mini SD Reader Media
Type : Disk

Partition Map Scheme : Unformatted
Disk Identifier : disk1
Media Name : Generic Mini SD Reader Media
Media Type : Generic
Connection Bus : USB
USB Serial Number : 00000000000006
Device Tree : IODeviceTree:/PCI0@0/EHC2@1A
Writable : Yes
Ejectable : Yes
Location : External
Total Capacity : 32.1 MB (32,096,256 Bytes)
Disk Number : 1
Partition Number : 0
S.M.A.R.T. Status : Not Supported
 
Mato-11 said:
OK , it seems to be not a problem with hardware or software. The next thing - check what kind of filesystem is on the SD card ( disk utility - your card - filesystem )
Click to expand...

I am having a similar issue. The SD card is not readable. I have files from a video I just shot and its the main camera. Will I be able to get those files?!?!?! I'm so stressed right now.

Here is what the information is showing from disk utility
Volume type : Physical Device
BSD device node : disk4
Connection : USB
Device tree path : IODeviceTree:/PCI0@0/PEG0@1/BR00@0/BR13@1/XHC1@0
Writable : No
Is case-sensitive : No
Volume capacity : 63,864,569,856
Available space (Purgeable + Free) : 0
Purgeable space : 0
Free space : 0
Used space : 63,864,569,856
Owners enabled : No
Is encrypted : No
Can be verified : No
Can be repaired : No
Bootable : No
Journaled : No
Disk number : 4
Media name : Mass Storage Device Media
Media type : Generic
Ejectable : Yes
Solid state : No
S.M.A.R.T. status : Not Supported
 
KDanzie said:
I am having a similar issue. The SD card is not readable. I have files from a video I just shot and its the main camera. Will I be able to get those files?!?!?! I'm so stressed right now.

Here is what the information is showing from disk utility
Volume type : Physical Device
BSD device node : disk4
Connection : USB
Device tree path : IODeviceTree:/PCI0@0/PEG0@1/BR00@0/BR13@1/XHC1@0
Writable : No
Is case-sensitive : No
Volume capacity : 63,864,569,856
Available space (Purgeable + Free) : 0
Purgeable space : 0
Free space : 0
Used space : 63,864,569,856
Owners enabled : No
Is encrypted : No
Can be verified : No
Can be repaired : No
Bootable : No
Journaled : No
Disk number : 4
Media name : Mass Storage Device Media
Media type : Generic
Ejectable : Yes
Solid state : No
S.M.A.R.T. status : Not Supported
Click to expand...

The "Journaled : No", if being accurately reported, indicates that the file format is NOT HFS+ (macOS Extended), APFS, or NTFS (the journeled Windows filesystem.) That likely leaves us with exFAT and FAT32 (in Mac this is called MS-DOS), both of which the Mac should be able to read (regardless of the partition table.) It seems unlikely the card would be in a more obscure format, unless you or someone else intentionally did this.
  • What brand media card is this? (and where was it purchased? - fakes from Amazon are extremely common)
  • What MacBook Pro do you have and what OS? (specifically, does it support ExFAT and SDXC?)
  • Have you tried this using another Mac? (it isn't completely unheard of for one brand flash drive or SD card to simply not 'play nice' with a specific individual computer, for whatever reason.)
  • If a 2016-2017, what SD card reader are you using? (does it support SDXC?)
  • When you set the card up for the first time with the camera (or another computer), what format procedure and file system did you use? (or did you not do anything and just place it in the camera and began using?)
If you are confident that this is a file system that should be supported by Mac, and that the SD card reader is both SDXC capable and properly functioning, and are reasonably confident that this card is not a fake (where the firmware has been hacked to make a small 2-4 GB card appear as a 32GB+ card), the next step may be trying to read the drive in Linux, as Linux seems to have better luck reading drives that have both corruption and physical problems.
 
ZapNZs said:
The "Journaled : No", if being accurately reported, indicates that the file format is NOT HFS+ (macOS Extended), APFS, or NTFS (the journeled Windows filesystem.) That likely leaves us with exFAT and FAT32 (in Mac this is called MS-DOS), both of which the Mac should be able to read (regardless of the partition table.) It seems unlikely the card would be in a more obscure format, unless you or someone else intentionally did this.
  • What brand media card is this? (and where was it purchased? - fakes from Amazon are extremely common)
  • What MacBook Pro do you have and what OS? (specifically, does it support ExFAT and SDXC?)
  • Have you tried this using another Mac? (it isn't completely unheard of for one brand flash drive or SD card to simply not 'play nice' with a specific individual computer, for whatever reason.)
  • If a 2016-2017, what SD card reader are you using? (does it support SDXC?)
  • When you set the card up for the first time with the camera (or another computer), what format procedure and file system did you use? (or did you not do anything and just place it in the camera and began using?)
If you are confident that this is a file system that should be supported by Mac, and that the SD card reader is both SDXC capable and properly functioning, and are reasonably confident that this card is not a fake (where the firmware has been hacked to make a small 2-4 GB card appear as a 32GB+ card), the next step may be trying to read the drive in Linux, as Linux seems to have better luck reading drives that have both corruption and physical problems.
Click to expand...
 
Perhaps the SD card GetInfo apparent read error is not an error. Could it be that this type of purgeable apparent excess beyond the stated capacity of the card might represent a chip which was originally manufactured to be of a higher capacity, but when tested had too low a working capacity to be rated at the intended capacity, and was subsequently overwritten with unreadable nonsense of sufficient volume to reduce the card to be re-formatted and usable as a lower-capacity card? In this way possible junk might have been saved to be a marketable product rather than a total loss. In that case, the "purgeable" additional data reported on Info might be reclaimed (made available for use) using Apple's DiskUtility.
 
You must log in or register to reply here.
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.
Top Bottom
Back