How to repair corrupted sd card?

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noellenchris

Inactive Recognized Developer / Retired Moderator
May 11, 2007
2,599
886
Marlton, NJ
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
 
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pooniaprashant

Senior Member
Sep 14, 2014
436
126
hi Guys,

I have this Strontium 64gb microsd card. For some reason im unable to write any file to the card. though i can read whats there in the card.
I tried the below methods, still my SD card is not fixed.. Pls check and lemme know if anything else has to be done.

All methods tried as administrator.
Method 1:
Normal format method by clicking on the sd card - getting "Windows was unable to complete the format"

Method 2:
From disk management tried to assign some other letter for my drive..and tried formatting..so use..getting some error.
create partition primary also not working

Method 3:
From diskpart.
list disk -> select disk 1 -> clean -> give Data error <cyclic redundancy check>"

Method 4:
From EaseUS partition manager: format - create partition primary - wipe data ---- Nothing is working.

Method 5:
chkdsk

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
The type of the file system is exFAT.
Volume Serial Number is 9C33-6BBD
Windows is verifying files and folders...
Volume label is STRONTIUM.
An error occurred while examining files and directories.
An error occurred while examining files and directories.
Corruption was found while examining files and directories.
File and folder verification is complete.
The volume has been successfully checked, but Windows was unable
to mark the volume as clean.
Windows has made corrections to the file system.

62946304 KB total disk space.
48463872 KB in 10566 files.
43904 KB in 341 indexes.
0 KB in bad sectors.
256 KB in use by the system.
14438272 KB available on disk.

131072 bytes in each allocation unit.
491768 total allocation units on disk.
112799 allocation units available on disk.

Any of the above methods didnt work for me.. Guy please help to get my sd card working again.
Strontium cards have a lifetime warranty, claim that

Sent from my Redmi Note 4 using Tapatalk
 

Rao Aayush Yadav

New member
Sep 22, 2017
2
0
SD Card Corrupted

Sir,
My SD Card storage is 3.72GB When I was Making it bootable using diskpart
and started it formatting not quickly; it start formatting .
when it reached 55% suddenly computer power offed and when I start my PC and tried to open my sd card it didn't opened and showed a message to format it;
when I click on format dialog box appears showing message
"Windows is unable to complete format"
When I entered list disk command in diskpart my sd card didn't appear there


Sir, I request you to solve my problem.
 

-Hope-

Senior Member
Oct 29, 2016
448
111
hi Guys,

I have this Strontium 64gb microsd card. For some reason im unable to write any file to the card. though i can read whats there in the card.
I tried the below methods, still my SD card is not fixed.. Pls check and lemme know if anything else has to be done.

All methods tried as administrator.
Method 1:
Normal format method by clicking on the sd card - getting "Windows was unable to complete the format"

Method 2:
From disk management tried to assign some other letter for my drive..and tried formatting..so use..getting some error.
create partition primary also not working

Method 3:
From diskpart.
list disk -> select disk 1 -> clean -> give Data error <cyclic redundancy check>"

Method 4:
From EaseUS partition manager: format - create partition primary - wipe data ---- Nothing is working.

Method 5:
chkdsk

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
The type of the file system is exFAT.
Volume Serial Number is 9C33-6BBD
Windows is verifying files and folders...
Volume label is STRONTIUM.
An error occurred while examining files and directories.
An error occurred while examining files and directories.
Corruption was found while examining files and directories.
File and folder verification is complete.
The volume has been successfully checked, but Windows was unable
to mark the volume as clean.
Windows has made corrections to the file system.

62946304 KB total disk space.
48463872 KB in 10566 files.
43904 KB in 341 indexes.
0 KB in bad sectors.
256 KB in use by the system.
14438272 KB available on disk.

131072 bytes in each allocation unit.
491768 total allocation units on disk.
112799 allocation units available on disk.

Any of the above methods didnt work for me.. Guy please help to get my sd card working again.

use photorec to try to pull the data from the card although its dead and cant be fixed, seems to be critcally damaged.
 

Jimisballjohn

Senior Member
Hello everyone, just wanted to share my experience with two 32gb Samsung evo cards, a plain and a Plus one. I used them as adoptable android storage and after some time (maybe after 2 years for the first one and a year for the other) they both became corrupted and write-protected. I didn't want to experiece the fuss of replacing the items, so I tried EVERY PROPOSED SOLUTION regarding corrputed SDs. So, I tried to format them with Windows Explorer, having inserted them one time in a Card Reader and another in my oldie Nokia N95. Nothing happened and I received the error that the cards were write-protected.

I tried the diskpart and Disk Utility methods; however, the results were the same as above.

Time for EaseUS, Partition Wizard, SD Formatter Tool and HPUSBTool. Unable to format as well.

Ultimum refugium was a VM running Debian OS and gparted utility. Even this application was unable to format these two stubborn cards.

In conclusion, I resolved my problem by replacing these two cards from the merchant I bought each one. It is obvious that some sort of physical damage is unfortunately occured by using the card as adoptable storage. From now on, I am certain that I will not use this type of partition ever again.
 
Last edited:

lintan1

New member
May 3, 2018
1
0
I've been facing troublesome with my samsung evo+ 16 sd card. The problem is the file in the sd card is not getting delete and i can't add any other file in it. Somebody please help me out.
 

alicejolly123

New member
Mar 12, 2015
3
0
Fix Corrupt Memory Card

Well, I think I can help you out repair corrupted SD card. You can try these ways to repair corrupted memory card:
  • Connect Memory Card To Another Device
  • Change The Card Drive Letter Name
  • Repair Corrupt Memory Card Using CMD Command
  • Format Memory Card To Fix Corruption
  • Use SD Card Formatter Tool To Repair/Format Corrupt Card
  • Reinstall The Drivers To Make Corrupted SD Card Detected
  • Scan SD Card With Anti-Virus Software To Fix Corruption
Try these ways to fix corrupted memory card repair issue with an ease. Try the above solutions and fix your corrupted memory card issues with an ease. To know more, visit this:
rescuedigitalmedia.com/corrupt-memory-card-repair
 

McBharathi

New member
Mar 23, 2019
1
0
Sir i tried as you instructed but still i have crc problem. My sd card could not be formatted.
Sd card opens but wen i click any files tptal system has been hanged
Pls help me to access my sd card
 

YamiYukiSenpai

Senior Member
Oct 7, 2014
303
36
So my phone says my SD card (128GB Samsung EVO) is corrupted, but TWRP can still see it. Whenever I format it using Android, the card is still corrupted.
WTF?!

Edit: this happened to both my Xperia Z5 Compact & Moto Z

Figured it out. It was the Bash Magisk Module
 
Last edited:

lisa1010

New member
Aug 9, 2019
1
0
Repair corrupted SD card

Hello friend,

Corruption of SD card is really an annoying issue. I was also facing this issue many times. In such circumstances, I am also looking for an effective solution to solve this corruption issue. That Time one of my close friend suggested to me, the below given solution which I am sharing with you. So, try out these solutions once.

Solution 1:. Use CMD to Fix the Damaged SD Card

• Plug your SD card into your computer with a card reader.
• Go to the start menu, type "cmd" in a search bar, hit enter and you will see "cmd.exe" in a list of programs.
• Click "cmd.exe" and then you will get the following command window that will allow you to fix your corrupted SD card without formatting.
• Type in "chkdsk /X /f [sd card letter]:" or "chkdsk [sd card letter]: /f ".
After finishing all these steps, Windows will begin to check and fix the file system of the SD card.

Solution 2:- Scan and Repair the SD Card

Solution 3: Use SD card Recovery Tool

If the above solutions fail to work, then you can use SD card RecoveryTool. using this effective tool, you can easily repair corrupted SD card. This tool is mostly recommended by the professionals Is very helpful too. Hopefully your problem get solved soon.
 

wian

Senior Member
Dec 10, 2005
108
93
You may be able to fix a corrupted card using the latest version of the official formatting tool: https://www.sdcard.org/downloads/formatter/

A full format takes a long time. You can first try the "Quick format" option. But if your card is screwed you probably need the thorough format:

Choose the card and select "Overwrite format" and tick box "CHS format size adjustment" then hit Format.

ALL DATA ON THE CARD WILL BE LOST!
 
Last edited:

cikos

Member
Jun 2, 2020
11
0
Chicago
Step 1: Connect the SD card to your PC

Step 2: Press Windows + E to open Windows Explorer.

Step 3: Right-click the SD card and open its Properties.

Step 4:
Click on the Tools tab.

Step 5: Click the Check button.
Step 6: Let the scan process completes. Close the scan window once it finishes.
 
Last edited:

endolith

Senior Member
So my SD card was corrupted, 256 GB SanDisk "Ultra MicroSDXC 1 ⑩ A1", and was getting CRC errors. I then put it in my Linux machine and ran badblocks destructive on it, one run of each of the 4 bit patterns (took 30 hours!), and it said 0 errors. Does that mean it's ok to keep using? The CRC errors were in the filesystem and not the hardware?
 

MaK452

New member
Nov 23, 2016
3
0
any method found on tech websites does not work. I have tried every tool like cmd, diskpart, easeus, minitool partition wizard , any thing did not worked.
Dont know what tools service center persons have. They can fix the SD card if not, they replace it.
I have strontium 64GB micro SD card. It some how got corrupted. Some chinese and unknown character and symbol was shown when connected to PC, then I ran error check and repair the errors, every thing was cleaned. I can see the files of my SD Card, but, the card became read only. I can not write data on it. Even in PC when right clicking any files, no "delete" option is available.
after trying every possible methods and tool available on Internet, atlast I had to go Service center.
He took SD card, went inside and returned in couple of minutes. Now my sd card was repaired.
But, when I inserted micro SD card in my cellphone it is now detected as Samsung SD card.
I dont know what he did. Possibly he might have write some different firmware. (I have heard that sd cards too have some micro controller and its firmware to control the main storage unit. If that firmware somehow got.corrupted, then damaged sd card is shown, which can be repaired by reflashing firmware)
 

blackhawk

Senior Member
Jun 23, 2020
9,291
3,720
Samsung Galaxy Note 10+
Use a low level formatting tool to recover corrupted cards. All data will lost.

Lexar had a great one so look through their downloads. Not sure which one it's in.
 

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  • 86
    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.
    8
    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.


    :D
    5
    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.

    Thank you man, you are a life saver.....
    4
    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.
    2
    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