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How to repair corrupted sd card?

does anyone know how to undelete or repair an sd card? It's happened a few times and I usually format and start over. Any help would be appreciated.
Chris

undelete-plus
Try this
http://undelete-plus.com/

yeah when connected to a sdcard reader any pc undelete software will work on it
like the link AthenaLod gave

Rudegar said:
yeah when connected to a sdcard reader any pc undelete software will work on it
like the link AthenaLod gave
Click to expand...
Click to collapse
thanks I will give it a go....
Chris

If you have problems with your memory card in 80% of all cases the controller of your card is damaged and no software or card reader can help. You must separate the memory chip and dump the raw data to recover your data, look here: CF xD SD memory card/stick photo recovery

Repairing a corrupted SD card.
If the SD card is corrupted then it will be because it has boot sector errors. Download DriveRestore Professional and you can scan your corrupted card for errors... you can then repair the card's errors when the product is activated. You can download a free trial at: www.pcrecovery.com/driverestore

don t format in the name of GOD!!!
Please all keep in mind>>>> drive recovery pro is a nice solution,but formatting a hard drive is ok,and important.NOT A SD CARD!!!The continous files are different from the usual hard drive files!!
NO NEED FORMATTING!!!
In fact>>formatting an SD card lower the life time of the card with a good year or more!!Anyhow they made to survive only around two years!!!
The continous upload and erase sssions are killing the SD card.BUT FORMATTING IS TH BIGGEST KILLER.Check the experts,what they say???
Corrupted cards can be deffected from factory as wel,but drive check and restore is the best.The sectors are damaged,and not the fragmantation....
helios

Repairing a corrupted SD card.
DriveRestore Professional will not re-format a corrupted SD card. Formatting is NOT recommended as formatting will erase all the data on the SD card. DriveRestore Professional will analyse the boot sector (that ALL drives have e.g. FAT16 and FAT32 file systems on an SD card), it will detect errors in the boot sector and then repair the errors. When the card is repaired, ALL the files will be accessible and the card is fully repaired.

Sometimes the filesystem on the card gets corrupted. It can happen for example if the card was ejected while a file operation on it was in progress. When that happens you might have trouble accessing some of the files, loading times for some directories in file explorer may be very slow.
You can attempt to fix it using the desktop windows' built-in chkdsk utility.
Open up command prompt (start->run->cmd.exe) and type
chkdsk /X /F <SD card drive letter>
My SD card reader is X:\ drive, so i wold use the following command:
chkdsk /X /F X:
SD card reader is recommended, but probably not necessary because it should also work with WinMo's built-in USB mass storage function or wm5torage.
Under linux you can check/fix the card's filesysterm and in some cases undelete a file using fsck.vfat or dosfsck (single tool, two possible names). Refer to its help for more details.

mr_deimos said:
Sometimes the filesystem on the card gets corrupted. It can happen for example if the card was ejected while a file operation on it was in progress. When that happens you might have trouble accessing some of the files, loading times for some directories in file explorer may be very slow.
You can attempt to fix it using the desktop windows' built-in chkdsk utility.
Open up command prompt (start->run->cmd.exe) and type
chkdsk /X /F <SD card drive letter>
My SD card reader is X:\ drive, so i wold use the following command:
chkdsk /X /F X:
SD card reader is recommended, but probably not necessary because it should also work with WinMo's built-in USB mass storage function or wm5torage.
Under linux you can check/fix the card's filesysterm and in some cases undelete a file using fsck.vfat or dosfsck (single tool, two possible names). Refer to its help for more details.
Click to expand...
Click to collapse
Thank you man, you are a life saver.....

mr_deimos said:
Sometimes the filesystem on the card gets corrupted. It can happen for example if the card was ejected while a file operation on it was in progress. When that happens you might have trouble accessing some of the files, loading times for some directories in file explorer may be very slow.
You can attempt to fix it using the desktop windows' built-in chkdsk utility.
Open up command prompt (start->run->cmd.exe) and type
chkdsk /X /F <SD card drive letter>
My SD card reader is X:\ drive, so i wold use the following command:
chkdsk /X /F X:
SD card reader is recommended, but probably not necessary because it should also work with WinMo's built-in USB mass storage function or wm5torage.
Under linux you can check/fix the card's filesysterm and in some cases undelete a file using fsck.vfat or dosfsck (single tool, two possible names). Refer to its help for more details.
Click to expand...
Click to collapse
wow..thankz

AthenaLod said:
Try this
http://undelete-plus.com/
Click to expand...
Click to collapse
Thanks for sharing.....

I only recently became a (sort of) expert on this as I had a corrupted NTFS bootable partition on my macbook pro with a messed up Master File Table. Man, that was a nightmare.
Anyway, the answer to this question varies greatly depending on the filesystem and the type of corruption you have. Standard Chkdsk might work (the windows utility) although I admit I have no idea how well that works on flash removable media.
Other good options are TestDisk, and there are some other free options out there.
Depending on how important your data is to you and how severe the corruption is you may need to go with a paid application. This is what I had to do because Master File Table corruptions in NTFS are particularly nasty (although some versions of them can be corrected by TestDisk). I recommend GetDataBack which worked great for me.
In any case, try TestDisk out because its a very powerful tool and it is totally free. Read up on the documentation before playing around with it though, because you can cause irreparable damage to any one of your disks if you don't know what you are doing. Ideally make an image of your card using dd (built in linux utility, just type 'man dd' at the cmd line) before attempting to fix it so you can't do anything you can't undo.

hey i formatted my card using card studio in qtek 9100 it formatted 100 % but when i attached it on the card reader then to PC! PC doesn't show this cardddddd help meeee

Instructions
things you'll need:
* SD Card
* Computer
* Internet Connection
*1
If your aim is to repair a corrupted SD card so that you can use it to store files then proceed to step #2.
If your aim is to recover the files on the SD card without erasing them, proceed to step #5.
*2
Insert the SD card into a digital camera card slot and choose to format your card. If this doesn't work then move on to the next step...
*3
Place the SD card into your computers SD card slot.
Right click on the SD card drive letter IF it appears and choose to "format."
If this doesn't work, proceed to the next step...
*4
www.sdcard.org
You will need to go to the website
http://www.sdcard.org/consumers/formatter/eula/
Here you will download, install, and run the program to format your SD card. This is the most advanced step of the three, but most likely to work 99% of the time.
*5
www.cgsecurity.org
If you want to recover files ON your SD without erasing them, then you need to download and run the software on this site.
http://www.cgsecurity.org/wiki/TestDisk_Download
This is the best free software available for this type of problem.

thanks mr deimos for the chkdsk tip.this tip is way quicker fix than the programs mentioned in other posts in this thread

yeah, thanks guys for all your advice and help

mr_deimos said:
Sometimes the filesystem on the card gets corrupted. It can happen for example if the card was ejected while a file operation on it was in progress. When that happens you might have trouble accessing some of the files, loading times for some directories in file explorer may be very slow.
You can attempt to fix it using the desktop windows' built-in chkdsk utility.
Open up command prompt (start->run->cmd.exe) and type
chkdsk /X /F <SD card drive letter>
My SD card reader is X:\ drive, so i wold use the following command:
chkdsk /X /F X:
SD card reader is recommended, but probably not necessary because it should also work with WinMo's built-in USB mass storage function or wm5torage.
Under linux you can check/fix the card's filesysterm and in some cases undelete a file using fsck.vfat or dosfsck (single tool, two possible names). Refer to its help for more details.
Click to expand...
Click to collapse
Thank you for this, saved my uSD card after flashing a kernel messed it up!

On Linux you can try dd_rescue. It creates copy like normal dd but it does not abort on errors.
Copy card to file and then mount this file like drive

Thanks for the chkdsk /X /F
I just had a currupted sd card this morning and was banging my head until I saw this and it fixed it.
THANK YOU!!!!!!!!!!!!!!!!!!!

How to fix a corrupted SD card

Hi everybody.
Is anybody has a way to retrieve data on a corrupted SD Card. I have a Sandisk 8GB which became corrupted after connecting the phone on an old PC.
All the content is still there I Guess (size of free space/used space is correct) but the name of the SDCard and of each folder and files are like... unreadable :
]░╣j╣Ð.%Ê
I tried HDD regenerator which regenerate ... nothing and Recuva like retriev only some images.
But i have some files very important on this card.
Please is anybody has a solution?
Well, now, tried Handy recovery. I saw my files, I can retrieve them but once retrieved, system said the file is corrupted. I used SPB Backup to create my saves.

yozart said:
Hi everybody.
Is anybody has a way to retrieve data on a corrupted SD Card. I have a Sandisk 8GB which became corrupted after connecting the phone on an old PC.
All the content is still there I Guess (size of free space/used space is correct) but the name of the SDCard and of each folder and files are like... unreadable :
]░╣j╣Ð.%Ê
I tried HDD regenerator which regenerate ... nothing and Recuva like retriev only some images.
But i have some files very important on this card.
Please is anybody has a solution?
Well, now, tried Handy recovery. I saw my files, I can retrieve them but once retrieved, system said the file is corrupted. I used SPB Backup to create my saves.
Click to expand...
Click to collapse
you could run chkdsk on windows or look for some other file recovery software.

Check out wizcode software. They've got a few options (undelete, unformat, scandisk). I use scandisk all the time, and it does a good job fixing corruption. But when you have screwed up directories, it may be too late.

Try this software
DDR - Memory Card Recovery
I had a corrupted 16Gig Card and it retrieved all. I could not even see any files on the card and Windows kept telling me to reformat. It costs 50.00.

Hi,
First of all due to virus your card is corrupted and you can see your card like ]░╣j╣Ð.%Ê etc. Check out your anti virus for updated virus definition and scan your system and for your card follow the same way, scan your card , you will get your files back to original and if you could not get them back to original state then you have to use a third party data recovery software.
You can check Kernel for FAT and NTFS software for the same, it will preview you the data in scan mode and if you want then can save the desired files to specific location.
Thanks

[Q] Microsd Card (Nook Color) not recognized by Windows XP after froyo flash

I used the link below to flash the internal memory card of Nook Color.
http://forum.xda-developers.com/showthread.php?t=938200
I also noticed that when I insert the Micro SD Card into the socket of the "Nook",
some files get automatically created on the card. ".Android_secure", "LOST.DIR", "tmp". In the tmp dir, there is "astro" dir with astro.db file.
Now when the I hook up the "Nook Color" to the PC the drive letters show up as "E:" and "F", but I cannot get into the drive to look at the files in them. When I click on the drive it asks to insert disk
Can someone help?
Thanks

Did you format the card upon insertion? If not try doing it from Recovery. Do you have essential files on it? FAT 32 Format is the preferred option/way.
edit: Disk Management in Windows
Some of these commands below can cause harmful an undesirable functions, leading to the formatting of your hard disk and data loss, while others will not run under Windows XP. As for Windows Vista the Run Tab is not visible in the start up menu. Windows Vista specific command prompts are not included. Start>Run>[type desired command here]
Disk management
* DISKMGMT.MSC: opens disk management utility
* CLEANMGR: opens disk drive clean up utility
* DFRG.MSC: opens disk defragmenter
* CHKDSK: complete analysis of disk partition
* DISKPART: disk partitioning tool

Microsd Card (Nook Color) not recognized by Windows XP after froyo flash
Before I flash everything was "working" fine.
Everything on the "Nook" after the "flash" is working great. I can do a lot thru froyo, but the problem below---->
I "just" cannot access the drives. Internal or external thru my PC
I tried the utilities you mentioned -->DISKMGMT.MSC. I can see the drive "E" and "F" assuming internal and additonal drive in the utility. That wont help since even though everything works perfectly on "Nook", windows XP now is unable to recognize the drives and is asking for "drivers" when I initally hook up the "Nook" thru USB.
Please help

Ok, this might be what you need:
[SCRIPT] Nook Color USB Drivers and ADB Setup (WinXP&7)

First off, I would like to thank you for your efforts in trying to help me.
I installed the ADB drivers quite a few times.
It shows up in device manager as "Android Phone" --> Android Compsite ADB Interface.
But in the "Explorer" when I click on "E" drive that corresponds to the internal memory of Nook Color, it says "Insert Disk into drive E" and now its real slow to respond of the cancel of that message
Please help

[Q] how to fix sd card ?

i have an 8 Gb sd card that was functioning very well,
untill i partitioned it using cwm and the phone turned off in the middle ( battery was out )
now i have an unallocated space with 1 Gb, i cant format it, and minitool partition wizard says bad disk
please dont say buy a new one it was class 6 and sd cards are very expensive where i live

synos_x said:
i have an 8 Gb sd card that was functioning very well,
untill i partitioned it using cwm and the phone turned off in the middle ( battery was out )
now i have an unallocated space with 1 Gb, i cant format it, and minitool partition wizard says bad disk
please dont say buy a new one it was class 6 and sd cards are very expensive where i live
Click to expand...
Click to collapse
Try again in cwm...
or else insert sd few more times in pc using memory card reader(adapter) til it stops saying bad disk and then try to format in minitool

tried both and still not working
thanks anyway

synos_x said:
tried both and still not working
thanks anyway
Click to expand...
Click to collapse
wats the problem with cwm? Wat error it shows?

Insert it in PC card reader. Find some partition manager, other than mini partition tool, for PC and try to repartition it.
If you use Windows 7 go to Control Panel->System and Security->Administrative tools -> Computer Management -> Storage -> Disk Management
and check if your card (and it's partitions) is shown. If it is try to remove existing partitions and create new FAT 32 partition spaning over entire disc.

i've used easeus partition master, and
easeus partition recovery + partition table doctor +hdd regenerator + sd formatter + minitool partition + [email protected] partition recovery+ flobo
i think it's hopeless
@tomashokenberi all of the programs including disk management , are showing one unallocated partition (1 Gb) and everytime i try to format the partition, the program fails, all of them
@vikraam the cwm just says formatting then done ( nothing else )
somebody said to me to try an mbr tool or program, and i havent found one that works on my pc (x64) do you have suggestions

How many partitions are actually shown in disk management? One or more? If there is more than one partition try to delete all partitions then create one new partition.
Also if your Windows PC uses some "ext2/3 enabler", that is software and driver that allows access to ext2/3/4 partitions from windows it may interfere with disk management and create problems.

it is showing only one partition, i've tryed gparted live cd, on several different pcs and different sd adapters all saying ( access denied, or write protected ), and yes the switch is correct,,
so what should i do now, make a hole in it and use it like a Key Chain

synos_x said:
it is showing only one partition, i've tryed gparted live cd, on several different pcs and different sd adapters all saying ( access denied, or write protected ), and yes the switch is correct,,
so what should i do now, make a hole in it and use it like a Key Chain
Click to expand...
Click to collapse
lol
P.S. : i came all the way down to find a solution

vickkr said:
lol
P.S. : i came all the way down to find a solution
Click to expand...
Click to collapse
Gave me the same bad disk error, I tried every partition manager but nothing worked!
I found my solution by changing my sdcard adapter (or usb card reader) and it works perfectly fine now

tomashokenberi said:
Insert it in PC card reader. Find some partition manager, other than mini partition tool, for PC and try to repartition it.
If you use Windows 7 go to Control Panel->System and Security->Administrative tools -> Computer Management -> Storage -> Disk Management
and check if your card (and it's partitions) is shown. If it is try to remove existing partitions and create new FAT 32 partition spaning over entire disc.
Click to expand...
Click to collapse
THANKS... , :') yo are realy realy solved my problem

solved
tomashokenberi said:
Insert it in PC card reader. Find some partition manager, other than mini partition tool, for PC and try to repartition it.
If you use Windows 7 go to Control Panel->System and Security->Administrative tools -> Computer Management -> Storage -> Disk Management
and check if your card (and it's partitions) is shown. If it is try to remove existing partitions and create new FAT 32 partition spaning over entire disc.
Click to expand...
Click to collapse
Thanks Problem solved

fix sd card
Did you try with a pc via a partition magic program?

bad disk
tomashokenberi said:
Insert it in PC card reader. Find some partition manager, other than mini partition tool, for PC and try to repartition it.
If you use Windows 7 go to Control Panel->System and Security->Administrative tools -> Computer Management -> Storage -> Disk Management
and check if your card (and it's partitions) is shown. If it is try to remove existing partitions and create new FAT 32 partition spaning over entire disc.
Click to expand...
Click to collapse
thanks, though this is an old post but you helped me with my sd card also.

faced the same problem....
simple solution:format with blackberry

Command Prompt
I don't know if the problem was solved. I have suggestions. They are worth trying but not guaranteed to work.
The 'Disk Management' thing doesn't work. I use Windows 10. It gets stuck (becomes entirely Unresponsive) until I pull out the card from the reader. And the same also happens when I double-click or right-click on the SD card in Windows Explorer.
Maybe this can work-
Check the Lock switch on Card. It should not be locked.
On the computer, disable any antivirus feature of auto-scanning USB disks when connected. Also disable Windows USB AutoPlay.
Connect Card to computer with a good card reader.
With Windows Explorer, find the drive letter of the connected SD Card.
Open Command Prompt as Administrator and write
format <drive letter followed by colon : and no slash>
Example - Attached to this post.
If error appears "Insert New Disk and press ENTER", just press 'ENTER' directly.
If error appears "Cannot open volume for direct access", write the format statement in 5th step again.
These errors appear 3-4 times, but keep following the above steps till these statements appear -
"The type of the file system is FAT32. Verifying <your card size>"
Good luck !!
Otherwise, try this http://www.cardrecoverypro.com/

Help with 128GB SD card needed

Hello!
My 128 GB SD card (Sandisk) had corrupted files. Every time I delete files, they appear again. I even tried to quick-format the card on Windows, but the files appear again. I also formated it without quick-format which took about 24 hours and the files were again on the card.
Is there a tool that could delete everything? A partition manager maybe?
Is there a way to find logs of what is happening exactly to that SD card? The card is 17 months old.
Thank you!

fetito666 said:
Hello!
My 128 GB SD card (Sandisk) had corrupted files. Every time I delete files, they appear again. I even tried to quick-format the card on Windows, but the files appear again. I also formated it without quick-format which took about 24 hours and the files were again on the card.
Is there a tool that could delete everything? A partition manager maybe?
Is there a way to find logs of what is happening exactly to that SD card? The card is 17 months old.
Thank you!
Click to expand...
Click to collapse
Run chkdisk on it, it may have errors that need to be fixed.
I DO NOT PROVIDE HELP IN PM, KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE

TechARoid said:
You should consider formatting SD Card on Android platform rather than Windows.
Click to expand...
Click to collapse
Ok, but does Android give it a new partition and file format?

Ok, I formatted it from Android within, but there are no changes. All files are still there again.
Is there a write protection on my SD card?

fetito666 said:
Ok, I formatted it from Android within, but there are no changes. All files are still there again.
Is there a write protection on my SD card?
Click to expand...
Click to collapse
Have you tried running chkdisk on it yet?
If it were write protected, it would prompt you when you went to format it in Windows.
I DO NOT PROVIDE HELP IN PM, KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE

fetito666 said:
Hello!
My 128 GB SD card (Sandisk) had corrupted files. Every time I delete files, they appear again. I even tried to quick-format the card on Windows, but the files appear again. I also formated it without quick-format which took about 24 hours and the files were again on the card.
Is there a tool that could delete everything? A partition manager maybe?
Is there a way to find logs of what is happening exactly to that SD card? The card is 17 months old.
Thank you!
Click to expand...
Click to collapse
Use this tool in your PC and format sd card in FAT32 format.

@Droidriven: I deleted the partition, but was unable to create a new one. As a result, I was unable to format it again and Windows does not assign any drive letter. Thus, I was unable to use chkdsk. However, Android still recognizes the card, but I cannot make any changes to it. Even when I format it again on Android 7, it says "format succesfull!", but the old data is still there.
@ Ashwinrg: Thank you! But now Windows does not even recognize the card because of the reason I mentioned above.
Update: I manually assigned a drive letter, started CHKDSK, but it says that during "examining the map bits of the volumen" ("el mapa de bit del volumen" in Spanish) errors have been found, but the lost archives cannot be recovered.

fetito666 said:
@Droidriven: I deleted the partition, but was unable to create a new one. As a result, I was unable to format it again and Windows does not assign any drive letter. Thus, I was unable to use chkdsk. However, Android still recognizes the card, but I cannot make any changes to it. Even when I format it again on Android 7, it says "format succesfull!", but the old data is still there.
@ Ashwinrg: Thank you! But now Windows does not even recognize the card because of the reason I mentioned above.
Update: I manually assigned a drive letter, started CHKDSK, but it says that during "examining the map bits of the volumen" ("el mapa de bit del volumen" in Spanish) errors have been found, but the lost archives cannot be recovered.
Click to expand...
Click to collapse
To fix the errors
chkdsk X: /f
Where X is the SD assigned letter
To recover some deleted files or files that you couldn't move from SD card you should have used programs like : testdisk or photorec to restore them before you did a format.

@-Hope-: CHKDSK does not work because it throws some error messages.
How do I know if the card lost its abbility to write data? All I can do is read data. I don't want to recover data. I just want to fix the card.

fetito666 said:
@-Hope-: CHKDSK does not work because it throws some error messages.
How do I know if the card lost its abbility to write data? All I can do is read data. I don't want to recover data. I just want to fix the card.
Click to expand...
Click to collapse
Hello
Seems that the SD is write protected
We can try to disable the protection using diskpart tool in windows
Connect the SD card -via card reader is a recommended step- or if your laptop have a buildin reader
Open a CMD (admin)
Type diskpart then enter
Type list disk then enter
You will see a list of disks and partitions etc..
Type select disk <number of the disk> for example
select disk 2 then enter
Type then
attributes disk clear readonly and enter
Then type exit and enter
The method is explained here with pics on wikihow
http://www.wikihow.com/Disable-Write-Protection
There are some other methods you may try too

-Hope- said:
Hello
Seems that the SD is write protected
We can try to disable the protection using diskpart tool in windows
Connect the SD card -via card reader is a recommended step- or if your laptop have a buildin reader
Open a CMD (admin)
Type diskpart then enter
Type list disk then enter
You will see a list of disks and partitions etc..
Type select disk <number of the disk> for example
select disk 2 then enter
Type then
attributes disk clear readonly and enter
Then type exit and enter
The method is explained here with pics on wikihow
http://www.wikihow.com/Disable-Write-Protection
There are some other methods you may try too
Click to expand...
Click to collapse
Unfortunately that did not help.

fetito666 said:
Unfortunately that did not help.
Click to expand...
Click to collapse
Unfortunately, I think after all of this, your card might be too corrupted to repair/reclaim. You might be chasing your own tail with this but I guess it is worth continuing to try.
I DO NOT PROVIDE HELP IN PM, KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE

I already contacted the manufacturer Sandisk which offered me a free RMA. It seems that the SD card is physically broken.
THANK YOU ALL FOR YOUR HELP!