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Repair Not Working SanDisk Memory Card without Losing Data

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 Free to recover data from the SanDisk memory card in trouble.

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Table of Contents

Are you faced with the problem of the SanDisk SD card not showing up, recognizing by phone or PC? Try the methods here to fix it and recover data.

Workable Solutions Step-by-step Troubleshooting
Fix 1. Repair the SD card not working or not detecting Method 1. Apply SD card repair software...Full steps
Method 2. Update driver and format it into NTFS...Full steps
Fix 3. Recover the SanDisk SD card data for free Step 1. Run free SD card recovery software
Step 2. Scan the SD card
Step 3. Select files and recover...Full steps

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 the 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:

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

Note that the CMD CHKDSK command will erase all data on the SanDisk memory card. So make sure that you recover data from the SD card first with reliable EaseUS Data Recovery Wizard.  

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.

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

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

Video Tutorial of Repairing Not Working or Undetectable SD Card

Here is a video tutorial guide that you can also follow to repair the not working or not detected SD card on your own. Let's see:

How to Recover data from not working SanDisk memory card free

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

 Download for Win Recovery Rate 99.7%
 Download for Mac Trustpilot Rating 4.7

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.

Step 1. Select the SD card to scan

  • Download and install EaseUS Data Recovery Wizard on your Windows PC.
  • Use the proper way to connect your SanDisk/Lexar/Transcend SD card to the computer. 
  • Open EaseUS SD card recovery software and choose SD Card Recovery on the left panel. All connected drives will display here. Select your SD card and click "Scan".
select the sd card and click scan

Step 2. Check for scan results

  • Wait for the scanning process to complete.
  • Specify one or several file types to show up, like Pictures, Videos, Documents and so on.
  • Click "Preview" to check if they are the wanted files.
find wanted sd card files

Step 3. Recover SD card data

  • Preview the recovered files and click "Recover".
  • Choose a different location to save the recovered files instead of the original SD card.
recover sd card files

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Updated by Brithny

Brithny is a technology enthusiast, aiming to make readers' tech lives easy and enjoyable. She loves exploring new technologies and writing technical how-to tips. In her spare time, she loves sharing things about her favorite singer - Taylor Swift on her Facebook or Twitter.

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Written by Tracy King

Tracy joined in EaseUS in 2013 and has been working with EaseUS content team for over 10 years. Being enthusiastic in computing and technology, she writes tech how-to articles and share technical solutions to resolve Windows & Mac data recovery, data backup, partition management, data transfer, Windows update issues, etc.

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