It can be quite frustrating when an SD card stops working. With the card attached to your camera, phone, tablet, or computer, suddenly you get an error message: “Unable to read” or worse, no indication the system can see the card at all. Or you try to
view, copy, or save items to your SD card, but it doesn’t work.
While SD cards tend to work more reliably than many other types of storage, an SD card, or folders and files on an SD card, may still become corrupted or fail. When your SD card fails, try the following four steps in sequence to repair and recover your files.
Can’t Save? Look for the Lock
Sometimes, when people encounter an SD card problem, the issue isn’t the card at all, but instead a switch on the card. Many SD cards can be set to stop saving, meaning they’ve been locked into “read-only” mode. Not surprisingly, if you try to write to an SD card in “read-only” mode, you can’t.
Remove and Re-insert the SD Card
An improperly or partially inserted SD card may also present problems that can be fixed by removing the card and reinserting it. Power down your system entirely. Wait for a few seconds after the power is off, then remove the SD card. If the SD card is inserted into a USB card reader, unplug the card reader first, then reconnect it to make sure that the connection isn’t the problem.
Start your system. Wait until it has completed the full startup and boot process, which may take several minutes for older and/or slower systems. After the system is fully operational, reinsert the SD card in your system’s SD card reader slot.
Once inserted, wait a bit. Some systems attempt to auto-mount and open SD card folders. After a minute or two, if your system doesn’t automatically open and displays your SD card files and folders, go ahead and manually browse your file system to see if the card appears. Then, look for your SD card in your file system with either File Explorer on Windows systems or Finder on the Mac.
Repair or Fix a Damaged SD Card
If your SD card still isn’t working properly, you can attempt a repair with built-in system tools on either Windows or macOS.
INSTALL A THIRD-PARTY APP TORECOVERY DATA
If you still can’t access files or folders on your SD card, a third-party file recovery app may help. Each of the following three apps has a solid history of data recovery. All three are apps you install on a computer, then run to scan and recover files from a connected SD card.
Although all three of the following apps can likely help you recover data from a corrupted SD card, the apps vary in price, ease of use, and platform availability.
Most people with access to a Windows computer should first try Recuva, by Piriform. The app walks you through a series of simple screens to identify the type of data you want to recover, as well as which drives and file systems to scan for that data. The app then scans the selected drives for files. The free version allows you to recover files.
Another relatively easy to use alternative is EaseUS Data Recovery, which offers versions for Windows, macOS, and Android devices. Install the app, then scan your SD card to recover data that may otherwise be difficult to read.
If you’re comfortable with a text-based interface (much like DOS-style programs from the 1980s and 1990s), the free and open to open-source runs on Windows, macOS, and Linux, and can help you recover not only photo files, but also many other formats, including Office, ZIP, and PDF files. However, PhotoRec does require more technical knowledge than the other apps listed above. For example, you’ll need to understand the file format of your SD card, and on Windows systems, you'll,l need to know how to run the app as an administrator. But if the interface and additional technical knowledge do n’ dondon'toblem for you, PhotoRec can help you recover your data.
If none of these three apps works to recover your data, it’s likely that your files will not be able to be recovered.
This post was gotten from an unknown source,so I will advice to meet a technician that have an experience to help you out before you damage your phone join
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