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SD (Solid State Digital) cards are amazing bits of technology. Especially when it comes to the tiny, fingernail-sized Micro versions. These little cards can hold tens, hundreds, and even thousands of gigabytes of data!
Unfortunately, the small size of SD cards comes with a price. Not only can SD cards be fragile and easy to lose, but they also have a horrible tendency to stop working or offer up corrupted versions of your data.
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If that’s happened to you, let’s look at how to recover data from a corrupted SD card.Is My SD Card Actually Corrupt?
Before we look at recovering a corrupted SD card, let’s quickly talk about the symptoms that indicate that your SD card is suffering from corruption in the first place. Here are some common signs that your SD card has been corrupted:
You can see the files on the card, but can’t read and/or write to them
The SD card shows up as empty, even though you know there are files there
You can see files such as photos, but when you open them they are corrupted
Copying from the card shows an impossible completion time, usually ending in copy failure
The Windows 10 Disk Management Tool shows the drive, but says it’s empty or unreadable
If that’s the behavior you’re seeing, chances are that your data has become corrupt or the SD card itself is in trouble. Before you proceed, you may want to check our troubleshooting guide for when SD cards can’t be read at all.Basic Diagnostics
Before attempting data recovery or doing something drastic like formatting the SD card, there are a few basic diagnostic steps you should take to make sure you know which device is actually the problem.
Try the SD card in another device
Try a known working SD card in the same device
Try reading the SD card with a different reader
Try reading the SD card via the original device using a cableSD Card Issues Vs Corrupted Writes Fake SD Cards
If this is a new SD card or one that you’ve never really filled up before. There’s a possibility that you’ve actually bought a fake SD card. “Fake” in the sense that the capacity you were sold isn’t what’s actually on the card.
Fake SD cards are a scourge of modern technology. Since small-capacity SD cards are so cheap but larger ones are many times more expensive, scammers create cards that report false capacities. So, for example, your “128GB” SD card might only have 16 GB of actual capacity. What happens is that when that 16GB SD card fills up, the card just starts overwriting the first data in a loop.
This can actually fool us for a long time since we’re likely to check only the most recent files we’ve saved or might not reach the maximum capacity of the real SD size for quite some time.
If you suspect that your SD card is fake rather than corrupted, try using one of the many fake SD card testers available for download. FakeFlashTest is one popular solution that will tell you if your SD card is just broken or actually counterfeit.Use a Disk Checker Tool
Sometimes it’s not your actual SD card or data that’s gone wrong, but something about the card’s file system. Simply using the disk checker tool in your operating system can recover data from a corrupted SD card. In Windows 10. Here’s what to do:
If your actual data is not damaged and the SD card is physically fine, the disk checker will rebuild its logical structure and the disk should be usable again. If the card isn’t working properly, the disk checker will let you know.Using Specialized Recovery Software
If none of your DIY diagnostics yield any results and the SD card still at least shows up when you insert it, then consider using specialized SD card data recovery software.
These software packages go around the limitations of the average drive management standards and examine the SD card bit-by-bit using brute force methods. Sometimes you can recover corrupted data fully this way or at least recover your data partially. Which is better than losing all of it.
However, these programs can’t perform miracles. If the data has been physically destroyed or cannot be accessed at all, then there really is nothing the software can do.
A good place to start is Recuva, a great general-purpose data recovery tool that has saved our own data many times in the past.Hire A Data Recovery Specialist
Let’s say that the information on your SD card is absolutely critical. Perhaps you just filmed a once-in-a-lifetime event for an important project and when you got home it turns out the SD card doesn’t want to work or the data is unreadable.
When data is valuable, you’ll want to consider getting the help of a data recovery specialist to recover data from a corrupted SD card. These companies have access to equipment and software far beyond the average consumer. They can rebuild broken hardware components and directly read data from the media.
This includes not only common corruption errors but electronics failure, memory chip failure, fire damage, water damage, physical damage, and just about anything you can imagine.
Sounds great, right? Well, it certainly is, but engaging the services of these specialists is expensive, so the data in question has to be worth it to you.Prevention Is Better Than The Cure
Look, you’re probably reading this article because you’ve suffered a loss when it comes to your corrupted SD cards. Hopefully one of the solutions above has recovered some or even all of your data. However, sometimes data is simply lost forever.
So to stop yourself from becoming a victim of SD data loss again, consider doing the following:
Use automated cloud storage to back up SD card data such as photos or videos
Manually use services like Google One, DropBox or OneDrive
Move SD card contents from devices like drones and cameras to your computer ASAP
Keep at least two copies of irreplaceable data in two separate places
Only buy high-quality SD cards from reputable brands if data integrity is critical
SD cards are fairly robust, but they still seem to fail more often than other types of solid-state storage. Especially if you use them in applications where they are written to constantly. Using your SD cards in a way that acknowledges their weaknesses will help you prevent losses in the first place.
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If you are working with a corrupted file, you are likely to encounter a system message stating that you have file corruption. Additionally, issues while accessing, opening or transferring files could also indicate a possible file corruption.
Talking about what caused the corruption, it is very likely that files in the USB drive got affected by a malicious application. Besides malwares, abruptly removing the USB drive or a sudden power loss while performing read/write operation are well known causes for a file to be corrupted.
Now that you know some causes on how a file can get corrupted, let us now see how you can recover them. The first thing you can do is check if the data blocks on your drive are corrupted. To do this, you can try performing a disk scan.
You can use the chkdsk command to scan both internal and external storage devices for errors. Once the scan is complete, it creates a status report about your disk based on its file system. Furthermore, it lists, corrects and tries to recover data on the disk.
Press the Windows + R key to open Run.
You can also scan your USB flash drive from Windows Explorer.
Press Windows + E to open File Explorer.
Select Scan drive.
A file getting corrupted can mean multiple things. In some cases, it could be that the corruption causes the file attribute to change, which simultaneously results in the file to be hidden. To fix this you can try running the ATTRIB command.
The attrib command can display, set or remove file attributes. In our case, we will clear file attributes on the USB drive containing the corrupted file.
Press the Windows + R key to open Run.
Type cmd and press Ctrl + Alt + Enter to open Command Prompt as admin.
Once the command runs, you should be able to see the corrupted files on the flash drive.
Windows has a special backup feature that is available on all Windows versions after Windows 7. You can restore your USB drive if you have previously enabled this feature. It creates a history of file details at certain times.
Using this restore point, Windows restores corrupted files or even folders.
Open File Explorer.
Go to the Previous Version tab.
One thing to keep in mind is that you need to be wary when downloading hard disk recovery software. There are cases where the recovery application itself contains malware, corrupting your entire system.
If you are able to recover corrupted files from the USB flash drive, we recommend that you perform necessary measures to prevent things like such from happening again.
One primary precaution you could perform time and again to prevent files from getting corrupted is scan the USB device. When you scan your drive, the system goes through the files and folders and checks for any malicious activity that could potentially affect your USB drive.
Press the Windows + E to open File Explorer.
Go to This PC.
Select Scan now.
Windows Defender will start the scanning process and give you a report about the details of the scan. Make sure that you perform these scans every now and then.
If you have antivirus installed on your PC, you can also use this application to scan your USB drives.
You can check the status of the storage device using S.M.A.R.T. Self-Monitoring, Analysis, and Reporting Technology (SMART). It monitors storage devices connected in your system and determines whether the device is failing.
Insert the USB flash drive into the PC
Press the Windows + R key to open Run.
Type cmd and press Ctrl + Shift + Enter to open the Command prompt as admin.
Here, you will see the list of storage devices connected to the system and its status. OK means the device does not have any issues. The status will display Pred Fail if there is any issue with the device.
If it indicates Pred Fail, we recommend that you backup files from these USB flash drives.
Formatting the USB drives not only removes all the data on your storage device but also sets it to the state it was when you took it out of the package. By doing this, the system will clear all the memory blocks and reset them, eliminating any risks of possible data corruption.
However, make sure that you backup files in your USB drives before formatting it.
Open This PC.
Select the File System as Fat32 or NTFS.
How To Fix Corrupted Mac Hard Drive & Recover Data  Troubleshooting Guide: Repair Corrupted Hard Drive On Mac & Recover Important Files!
Must-Read: Do You Need Hard Drive Recovery Software? If Yes, Why?Effective Methods To Repair Corrupted Mac Hard Drive
If you begin to notice any of the symptoms listed below, start implementing the listed workarounds & start the repair process.
Your Mac suddenly starts acting weird when you have a corrupt hard drive. Some common symptoms that can be observed are:
Your Mac programs quit unexpectedly.
The device may stop responding to your commands.
It may refuse to transmit files from one place to another.
You may face issues while opening certain files & folders.
Worst-case scenarios? Your Mac refuses to start altogether.
Here’s how you can get rid of hard drive corruption issues on Mac.Workaround 1: Use Disk Utility
STEP 2- In case your computer refuses to start normally, you need to follow the steps below to launch the Disk Utility app:
Restart your Mac by pressing the shortcuts keys (Command + R)
Hold the shortcut keys (Command + R) until you see the Startup screen.
You’ll be asked to enter the login Password. Enter the same!
As soon as you do that, the Utilities window will open.
From here, you can choose Disk Utility.
STEP 4- A complete list of all the disks will appear on your screen. From here, you need to locate Mac’s hard drive.
Hopefully, you’ll be able to fix the corrupted hard drive and access the data stored in the same. If it didn’t help, go ahead with the next method!
Must-Read: Quick Ways To Stop Spinning Wheel On Mac!Workaround 2 : Run diskutil Command
The quickest and easiest way to fix a corrupted Mac hard drive is through Terminal. Follow the instructions below to start the process:
STEP 1: Launch Terminal utility on Mac.
STEP2: Type the command line: diskutil repairVolume /Volumes/[Enter Drive Name that needs to be repaired].
STEP 3: Hit the Enter button!
Once the process gets finished, a message ‘the drive is successfully repaired’ will appear on your screen. As soon as you receive that, restart your Mac and quickly access your files.Workaround 3: Fix File System Consistency Issue With FSCK Command
You must be wondering what the FSCK command is? Well, it stands for File System Consistency Check, it is responsible for verifying and repairing the consistency of the file system on your hard drive. To run the command line, this is what you need to do:
STEP 1- Press Command + S when your Mac starts to enter into Single User mode.
STEP 2- Open Terminal utility and type the command line: fsck -fy
Alternatively, you can execute the command line: /sbin/fsck -fy
Once the scanning gets completed, FSCK will automatically fix any hard drive corruption. As soon as the damaged drive is repaired, you might see the message ‘File system was modified’. You need to rerun the aforementioned command line in such scenarios until you see the message OK. Further, you can restart your Mac normally!
Must-Read: How to Repair Disk Permissions on Mac?Run Data Recovery Software For Mac To Recover Files From External Drive
Hard drive corruption often results in files disappearing from your Mac. When this happens, the best bet is Stellar Data Recovery for Mac. The tool helps recover files from a corrupted Mac hard drive. It is one of the most popular file recovery solutions that scans and restores data from a logically failed storage drive. You can rely on Free or Professional editions to perform data restoration tasks.
To recover missing files from a corrupted hard drive on Mac, all you have to do is:
STEP 1- Download & install Mac data recovery tool – Stellar. It is highly compatible with MacBook Pro/Air, iMac, Mac Mini.
STEP 2- Launch Stellar Data Recovery and from the main screen Select What To Recover, choose the option Recover Everything. Alternatively, you can choose to recover specific documents, photos, videos, music files, and so on.
STEP 4- On the next screen, you’ll be asked to select a location. We recommend choosing Macintosh HD. After that, simply toggle on the switch next to Deep Scan to run a thorough and comprehensive searching process.
Lastly, you need to specify the destination where you would like to store your recovered files. Hit the Save button to finish the data recovery process on Mac.
Additional Tip: If you frequently use Time Machine to take backup of drives, you can use it to revert to a previous version & eliminate the corrupted files. If you have a saved disk image already, you can do the following:
Connect your Time Machine backup disk.
Navigate to the folder that contains the deleted files.Frequently Asked Questions
FAQ 1How Can I Avoid Mac Hard Drive Corruption?
FAQ 2Can A Hard Drive Last 10 Years?
Well, some might last beyond ten years, but these are the outliers. The average duration of a hard disk lasts between 3 to 5 years before it starts to fail and needs to be replaced.
FAQ 3Which Is The Best Data Recovery Software For Mac?
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About the author
Is your phone running out of storage? If yes, phones with expandable memory are a life savior. You can simply get an SD card with a substantial amount of space and migrate all your files from the internal storage.
The type of SD card used in phones is the tiniest of all, MicroSD. You can even get multiple SD cards if you have a considerable amount of data.
But since this process can seem tricky depending on the phone model, we’re here to help.How to Transfer File from Internal Storage to SD Card on Android?
The fundamental way of transferring files involves sending files using the File Manager tool on an Android phone.Moving Documents Moving Photos or Videos
The process is the same to transfer other data, like images or videos. However, there are a few specific steps you can follow:Moving Apps
If you want to move all your favorite apps from internal storage to an SD card, here’s what you’ll need to do:
Note: If you’re having issues moving your app to the SD card, this is because some phones don’t support transferring system apps and such. You may even notice that the option to choose SD is not available.How to Change Default Camera Storage Location?
If you want to continue moving images to the SD card in the future, you can change a setting to make it automatic. By changing the default storage location of the Camera app, all your new pictures will start being stored on the SD card. Doing so will save you a lot of time and help make better use of the internal storage.
Here’s how you can change the default camera storage location:Why Can’t I Transfer Files from Internal Storage to Sd Card?
The process of transferring files is not always linear. There can be several factors that can act as a barrier between your files and the SD card.
Your SD card is out of storage.
Your SD card is not placed properly in the SD card tray.
The SD card is damaged or has dust particles.
Your SD card is corrupted or has a virus.
Your SD card is protected (read-only).My Phone Can’t Detected the SD Card
Sometimes your phone may not detect your SD card for various reasons. In such cases, a simple restart can suffice. Keep holding down the power button and take out the SD card tray. You can also clean the SD card if there are some visible dust/dirt particles. Put it back in and turn on your phone. Besides that, here are a few other solutions you can try.Unmount SD Card
Another way you can reset the SD card is by unmounting and then remounting it. Here’s what you’ll need to do:
Now, you can again mount the SD card and restart your phone.Using Command Prompt on a PC
You can fix internal bugs or errors within the SD card by using a command on your computer. This step also helps you check if your PC can detect the SD card. Here’s how you can do it:
Finally, you can use other solutions, like using a card reader on a PC, formatting the SD card, and factory resetting your phone.My Phone Doesn’t Have a SD Card Slot
SD Card slots were more popular back in the day. Now, newer models of phones are starting to come without an SD card slot. Phones like Google Pixel, iPhone, and the latest models of Samsung don’t have an SD card slot.
The reason behind this is to add to the user experience factor and to strengthen user data privacy. SD cards can get lost and people can easily get access to all your data on it. So, you can opt for cloud-based storage services, like Google Drive, iCloud, and more are getting popular.
Formatting an SD card from a Mac is simple and quick thanks to the Disk Utility application. This is a commonly required task before an SD card or Micro SD card can be used as a storage medium for another electronic device, or even to remove any data stored on the SD card.
This tutorial will show you how to format an SD card or Micro SD card in MacOS with the Disk Utility app.
Note that formatting an SD card or Micro SD card will erase all data on the card, as well as set a file system format for the SD card. Thus you will want to copy or backup any data on the SD card that you wish to preserve. If you’re aiming for maximum compatibility for use with most cross-platform devices, you’ll likely want to format to ExFAT, but you can also choose MacOS / OS X formats, or older FAT formats as well.How to Format an SD Card in Mac OS
Remember, this erases all data on the target SD card. Backup any important data before going further.
Connect the SD or microSD card to the Mac *
Open Disk Utility, found in /Applications/Utilities/
Eject the SD card / Micro SD card when finished to use it elsewhere
Regardless of how you format the SD card or Micro SD card, when finished it will show as visible in the Disk Utility drive list, and in the Finder as well.
Once formatting has completed you are free to use the SD card as you want, ready for use in another electronic device, or even if you wish to write an img or iso to the SD card for something like building a Raspberry Pi.
In terms of choosing a file system format when formatting an SD card, it’s largely a matter of what the intended use is. ExFat, FAT, and NTFS are generally broadly compatible and offer solutions for for both Mac and Windows PC compatibility, whereas selecting MacOS and OS X as the format are pretty much Mac compatible only. Most SD cards come pre-formatted as some variation of FAT, and ExFat generally works for what most electronic devices that use SD cards.
You can also set security measures for the SD card if desired, but doing so would make it unreadable by something like a digital camera, Raspberry Pi, smartphone, security camera, or most other devices you might be aiming to use an SD card with. Thus while you’re free to encrypt the SD card like any other storage medium, it’s generally not recommended unless your intention is to keep it exclusively for Mac use and as an encrypted data storage device.
The approach covered here obviously focuses on formatting an SD card from Disk Utility in Mac OS, but if you’d rather use the Terminal for whatever reason than you can use diskutil to erase and format from the command line as well.
* Many older Macs include an SD card reader, but most new model Macs do not have an SD card reader built-in, however you can get a USB SD card reader for around $12 on Amazon (or get a USB-C SD card reader if the Mac has only USB-C ports).
How To Recover Deleted Voicemail From iPhone
In this post, we have listed various solutions that you can use to recover your permanently deleted voicemails on your iPhone.
Also read: 8 Common iCloud Problems for iPhone And How to Fix Them.How to Retrieve Your Lost Voicemails Within No Time Solution 1: Recover Voicemails from the “Recently Deleted” Folder
Launch the Phone app on your iPhone and switch to the “Voicemail” section. Scroll down at the bottom of the page and then tap on “Deleted Messages.”
Preview the voicemail messages and select the one you accidentally deleted, which you need to recover. Select the message and then tap on “Undelete.”
Once you tap on the “Undelete” option, the voicemail will automatically be moved to your voicemails list.
Also read: Fix: Share My Location Not Working on iPhone.Solution 2: Use the iTunes App to Retrieve Deleted Voicemails
Do you frequently back up your iPhone on the iTunes app? If yes, it looks like you are in luck here. You can quickly recover deleted voicemail on your iPhone using the iTunes backup.
Launch the iTunes app on your PC. Now, connect your iPhone to your computer using a USB lightning cable.
Tap on your iPhone’s icon and select “Summary.”
Tap on the “Restore Backup” button.
Select the recently created backup using the drop-down menu.
Tap on the “Restore” button to restore your iPhone.
The restoring process will take a little time. Once the backup is restored, all your deleted voicemails will be recovered quickly.
Also read: 7 Reasons Your iPhone Is Slow And How To Fix It.Solution 3: Restore from iCloud Backup
You can also recover deleted voicemails on your iPhone using the iCloud backup. But yes, the rules are pretty the same as iTunes. You need to make sure that the iCloud backup you made includes the voicemail you accidentally deleted.
Tap on “Erase all content and settings.”
Enter your iPhone’s passcode to authenticate the process. Follow the on-screen instructions and select “Restore from iCloud backup.”
Enter your iCloud account credentials.
Tap in the iCloud backup that you need to restore.
Also Read: 11 BEST iPhone Data Recovery Software & AppsSolution 4: Use the Phone Rescue Data Recovery Tool
The Phone Rescue data recovery tool for Windows can be your life savior as it can help you effortlessly recover deleted iPhone files, including voicemails. And you know what the best part is? Once you recover deleted data using this nifty tool, none of your existing data or content will be erased from your device. The Phone Rescue Data Recovery tool ensures that all of your data and files remain secure through the recovery process. Follow these quick steps to recover your deleted voicemails using the Phone Rescue for iOS tool.
Download and install the Phone Rescue data recovery tool on your computer. Connect your iPhone to your PC using a USB lightning cable.
Launch the software and select “Recover from the iOS device.”
Uncheck the “Select all” option placed at the bottom and then only select “Voicemails” to proceed.
Now, select all the voicemails that you want to retrieve. The Phone Rescue software gives you two options to retrieve data. You can choose “Recover to Computer” or “Recover to iOS device.”
Pick your option to recover deleted voicemails on your iPhone.
Also read: 10 Best iPad & iPhone Antivirus Apps in 2023
This wraps up our guide on how to recover deleted voicemail on iPhone. So, yes, coming to the bottom line now. Suppose you quickly want to retrieve deleted voicemails on your iPhone. In that case, you can use a professional data recovery tool like Phone Rescue (Refer to Solution #4)that helps you get the job done without losing any important files or data.
About the author
A tech blogger and part-time explorer of “Everything cool and trendy”. Slipped into the writing career a couple of years back, for the love of technology. Rimzhim’s blogs solely focus on problem-solving troubleshooting guides for Windows, macOS, Android, and iPhone. She curates tech-related content, tips, DIY hacks that resolve common errors and bugs. Born and raised in the pink city.
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