Repair Not Working SanDisk Memory Card without Losing Data

Tracy King updated on Jul 17, 2019 to Storage Media Recovery | How-to Articles

Summary

SanDisk memory card (e.g. micro SD card, SDHC, SDXC, and XQD card) not working properly on an Android phone, digital camera or PC, it means that the memory card is undetectable, unreadable or inaccessible. You can learn complete fixes on this page and try it one by one to fix a not working SanDisk memory card, meanwhile, using EaseUS Data Recovery Wizard to recover data from the SanDisk memory card in trouble.

Problem: SanDisk SD card not found by phone or PC

"My SD card was working flawlessly in the past few days. Suddenly, I go into my media on my phone today and it shows nothing. I go into my phone settings and it says there is no memory card detected. I tried SD cards from three other friends and they all registered fine on my phone so that isn't the issue. I then tried my SD in my laptop and the laptop won't even recognize I inserted a memory card. What could I do? This is a pressing matter because I need one of those videos off of my SD card by next week."

This is a snippet we picked up on forums.sandisk.com, one customer's SD card has a seriously malfunctioning problem, and soon this post was followed by other old and new customers. They all have this common question, why is my SanDisk memory card not working as it was? And mostly, they are using types like SanDisk Extreme Pro/Plus micro SD/SDHC/SDXC card, and a small Digital camera group is using XQD card. 

No matter how large capacity you're using, the minimum 2GB/4GB to medium 32GB/64GB/128GB to maximum 256GB/512GB, it's the same consequence when the memory card is reading, detected or recognized by a device.  You cannot take pictures, install apps, transfer files to the computer or simply cannot open the SD card.

Fix SanDisk SD card not working or detected in Windows 10/8.1/8/7

To repair not working or undetectable SanDisk memory card, you have two choices here. You follow either one to restore SanDisk memory card into reusable again.

Method 1. Run a disk checkup to repair SanDisk memory card failed error

You can try CMD order to run a disk check to fix all internal errors on SanDisk memory card so to repair the card. Or you can directly run a free partition manager software for help.

Option 1. Use free partition manager software to check and repair SanDisk memory card

If you prefer simple methods, you can simply apply EaseUS Partition Master Free with its Check partition feature to repair SanDisk memory card now:

 

Step 1: Open EaseUS Partition Master on your computer. Then locate the disk, right-click the partition you want to check, and choose "Check File System".

Check Partition - Step 1

Step 2: In the Check File System window, keep the "Try to fix errors if found" option selected and click "Start".

Check Partition - Step 2

Step 3: The software will begin checking your partition file system on your disk. When it has completed, click "Finish".

Check Partition - Step 3

Option 2. Run CMD command to check and repair SanDisk memory card

Step 1: Press Windows + X keys to bring up a dialogue, and click Command Prompt (Admin)

Step 2: Type: chkdsk /f c: (replace c with a drive letter of your external hard drive). Hit Enter to let the checking process to run.

Click to copy

Step 3: When it's finished, type: exit and hit Enter to finish the process.

Click to copy

Most of the time, to check and repair bad sectors and file system corruption on the SanDisk SD card will revive the memory card, make it appear on the phone, camera or PC normally. If it's still not working, and it's invisible in Windows Disk Management or Windows command prompt, move on the next method.

Method 2. Update SanDisk memory card driver and format it into NTFS

Step 1: Update SanDisk memory card driver

  • Open "Computer" and choose "System Properties".
  • In the taskbar on the left, click "device manager" and next to "USB controller" click "+".Then you'll see a yellow exclamation mark.
  • Right-click and choose "update driver software", then click "automatically search for driver software online".

update sandisk sd card drive to fix not working problem

Step 2: Format and reset SanDisk memory card to NTFS/FAT32

If updating driver makes it appear in Disk Management but shows invalid, unallocated or something else wrong, you can try to format it into NTFS or FAT32 so that the computer can recognize it eventually. (You can RECOVER DATA before or after performing a quick format)

  • In Windows 10/8.1/8/7, press Windows + R keys and type diskmgmt.msc to open Disk Management.
  • You can then right-click on SanDisk memory card and select "Format".
  • Then you can set file system NTFS or FAT/FAT32 for your SanDisk memory card.

format sandisk sd card to fix not working problem

How to Recover data from not working SanDisk memory card

When your SanDisk memory card, USB drive, external hard drive or SD card, etc storage devices become inaccessible, undetectable or unrecognized, don't do anything to your device. Keep it safe and then follow the below steps to recover important data.

Download professional data recovery software

Professional data recovery software - EaseUS Data Recovery Wizard is highly recommended for you. Activate to the full version for restoring unlimited data from SanDisk memory card or other storage devices. You can download it for free right here.

Recover data from SanDisk memory card

When SanDisk memory card is not working or not detectable, don't worry. EaseUS Data Recovery Wizard can help you scan, display and restore all data with ease.

NOTICE: Please be aware of stopping using your SanDisk SD card to avoid further data loss issue when you deleted or lost files on it.

Step 1. Run SD card recovery software and scan SanDisk SD card

  • Insert your SanDisk SD card to a card reader and plug it into your PC, let the computer read it.
  • Run EaseUS Data Recovery Wizard on your PC.
  • Find your SanDisk SD card and select it under External Devices.
  • Click Scan to start SanDisk SD card recovery now.
Start SanDisk SD card recovery.

Step 2. Find and preview SanDisk SD card files

Here is a quick way to guide you find lost files:

  • Delete Files: Lists your deleted files there.
  • Drive (with your device name): It loads all lost files there.
  • Lost Partition Files: Check first if it's for formatted recovery.
  • Extra Files: Finds files that lost names or paths.
Find lost files from SanDisk SD card.

You can double-click found files to preview and check out whether they are your desired files.

Step 3. Restore lost files from SanDisk SD card.

Do remember to restore and save the found SanDisk SD card files to a secure location on your PC or an external storage device.

Find lost files from SanDisk SD card.
 
 

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Frequently Asked Questions

1. Why cannot I recover 2GB data for free?

It is recommended to check the version installed is Free or Trial because they are different versions.

Trial has data preview function but cannot save any files, while the Free version enables to recover 2 GB files. The default free space is 500 MB and you may share the product on social media to get another 1.5 GB.

2. Why cannot the recovered files be opened?

A file is saved as 2 parts on the storage device: directory info (which is comprised by file name, time stamp and size info, etc.) and data content.

If the files with original file names and folder structures cannot be opened, one possible reason is the corrupted directory info. There is still a chance to recover the data content with the RAW Recovery method in our software.

3. Why isn't it suggested to recover the files back to the original drive?

The storage structure of the lost files would be altered or damaged by any changes on the drive. If you save the recovered files back to the same drive, the original data structures and data content would be corrupted or overwritten, which causes permanent data loss. So you should prepare another disk to save the files.

4. How can I check whether my data is recoverable or not before purchase?

The Free version helps you save 2GB files to better verify the recovery quality of our product before purchase.

5. How long does it take to scan the drive?

It strongly depends on the capacity of your hard drive and the performance of your computer. As reference,most drive recoveries can be completed in around 10 to 12 hours for a 1-TB healthy hard drive in general conditions.

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