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SD card data recovery

Time: 2019-12-05 10:41:42

Author: 深圳业恒电子有限公司


SD card is one of the most commonly used data storage devices, which is often used to store important data such as photos, videos, audio, etc. However, the data on the SD card will be lost due to deletion, formatting, raw partition and other reasons. What should I do if I encounter the problem of SD card data loss? Don't worry. Actually, the recovery method is very simple. Let me introduce how to recover

In daily work and learning, SD card is often used as a storage device. It has large storage space and is easy to use. Many devices use SD card as a storage tool. SD card has become an important part of our electronic equipment, which stores photos, videos, documents, audio and other data for us. SD card provides us with great convenience, but the following troubles are also very headache, such as data loss. There are many cases of SD card losing data, such as deleting by mistake, formatting, SD card cannot be accessed, etc. Therefore, it is necessary to learn how to recover the lost data of SD card.

Can the data on the SD card be recovered? How to recover? In short, as long as the lost data is not covered, there is hope for recovery. Take delete as an example to briefly introduce the principle of data recovery. When we delete the files on the SD card, the files will not be seen, but the files are not really erased. In fact, the system just deletes the data from the file record and marks the disk space occupied by the file as "free". Before the "idle" disk space is occupied by new data, the lost data is in a recoverable state. How to retrieve the lost data? Memory card data recovery software can be used. Such software can analyze the data on SD card one by one and recover the lost files.

Common causes of SD card data loss

Why is the data on the SD card lost? What causes it? In fact, there are many reasons for the SD card data loss. Here I summarize some common reasons to help you prevent the loss in advance:

Human error operation: in the process of using SD card, there are often operations such as deleting and formatting by mistake, which results in data loss. Therefore, you need to be careful and pay more attention when deleting or formatting at ordinary times.

File system exception: if the file system of the partition is damaged or abnormal, the partition cannot be accessed normally. At this time, the partition often prompts unformatted and other errors. There are many reasons for file system failure, such as abnormal insertion and removal of SD card, virus damage, partition adjustment failure, bad path, etc.

Virus: once SD card is infected with virus, the data stored in it will be affected, for example, the virus will maliciously encrypt the data, the file display garbled, the file is maliciously deleted, etc.

There are physical faults in SD card: like other data storage devices, there are also hardware faults in SD card, such as memory chip problems. In this case, data recovery will be more complex, which needs to be handled by contacting a professional data recovery organization.

The SD card memory card data recovery software can be used to recover the data lost due to incorrect deletion, formatting, raw partition and other reasons on the memory card and other devices. Today, I recommend a good SD card data recovery software: diskgenius. Diskgenius is a professional data recovery software with comprehensive functions and high recovery success rate. The software can not only recover the data of memory card, but also support file recovery and partition recovery of computer hard disk, mobile hard disk, U disk, memory stick, virtual disk, raid, dynamic disk and other storage devices. In addition, the software supports the recovery of various files, such as photos, videos, audio, working documents, mail, etc.

In terms of data recovery of memory card, diskgenius software has special data recovery mode for error deletion, formatting, partition damage, etc., and provides deep scanning mode, which can analyze and recover NTFS, fat, exFAT, ext2 / 3 / 4 partition. As long as the lost data is not covered, the software can be used for recovery. Diskgenius data recovery software provides a free trial version, which allows users to scan SD card and preview recoverable files free of charge, so that users can fully understand the recovery degree of data in the trial phase, and have a plan in mind.

Now, let's introduce how to use diskgenius data recovery software free version to gradually recover the lost photos, videos, audio, documents and other data of SD card.


Preparation tools:

1. Computer and SD card waiting for data recovery

2. Diskgenius, SD card data recovery software

Start recovery

Step 1: download the software.

Open the diskgenius official website, click the "download" page to see that the software provides 32-bit and 64 bit versions, and download the version corresponding to your computer system according to the web page prompts. Note: do not save the software to the disk where data needs to be recovered.

Step 2: run the software.

Diskgenius provides a green version, which is convenient without installation. After the software is downloaded, decompress it, and then double-click the application to open the software.

Step 3: connect SD card.

Connect the SD card with lost data to the computer, which can be connected to the computer through the card reader, as shown in the figure below. After the SD card is connected, you can see the drive letter of one more removable disk in the computer explorer, and you can also see the SD card in the diskgenius software.

Note: if the SD card cannot be recognized by the computer and diskgenius, you can try to change the card reader or USB port connection. If it still cannot be recognized, it is likely that there is a serious physical failure of the SD card. In this case, the software cannot recover the data. You need to contact diskgenius technical personnel to check whether it still has recoverability.

Step 4: select the SD card of the recovered data, and then click the "recover file" button.

In the software, you can quickly find the partition that represents the SD card, select the SD card, and then click the "restore file" button on the toolbar. This function can be used to recover data lost due to deletion, formatting, partition cannot be opened and cannot be accessed.

Step 5: scan SD card.

Select the recovery option in the pop-up recovery file window, and click the "start" button to allow the software to start a full depth scan of the SD card. By default, the software checks all three recovery options to ensure that the software can search as much data as possible. Diskgenius will scan the SD card in full depth, but the storage space of the SD card is generally not large, and the scanning time is relatively short. Just wait patiently.

Step 6: preview the file.

File preview is a very practical function, which can help users to find out the required files in the scanning results, and judge whether the files can be successful. Double click a file in the software to open the preview window and view the file content, as shown in the following figure. If the file can be previewed normally, it means that the file is not damaged and can be recovered normally.

Step 7: copy the file.

The files listed in the scan results that need to be recovered do not mean that the files are actually recovered. Users need to copy the files to other locations to complete the SD card data recovery. Check the desired data and right-click to select "copy to specified folder", as shown in the following figure. Finally, set a location in the computer to save the recovered data.

Note: do not save the recovered files directly to the SD card where data recovery is in progress to avoid overwriting the rest of the unrecovered data.

I remind you to pay attention to the following situations when recovering SD card data in order to get the best data recovery effect:

1. Once the data on the SD card is found to be lost, all operations on the SD card shall be stopped immediately to avoid damaging the lost data. These operations include but are not limited to: storing new data, browsing or editing existing files, formatting, defragmenting disks, resizing partitions, repairing bad paths, repartitioning, etc.

2. If the SD card cannot be opened, please do not format the SD card or CHKDSK, because these operations often affect the final recovery effect.

3. Select professional data recovery software. If you encounter problems in use, please contact software technical support in time to avoid data damage caused by misoperation.

4. After data recovery, it is necessary to save the data to other locations, confirm that all the data have been recovered correctly, and then copy the data back to SD card.

How to effectively avoid SD card data loss?

In many cases, can SD card data loss be avoided? Here are some ways to avoid data loss:

Choose products with good quality: when purchasing SD card memory card, try to choose products from famous manufacturers, and purchase them on the officially recognized platform to ensure that the quality of the memory card is guaranteed.

Good usage habits: when using the SD card, handle it gently, and click the safe delete hardware icon every time before unplugging from the computer; in addition, if it's a camera or mobile phone, you need to install or remove the SD card when it's turned off.

Using anti-virus software: computer viruses or malicious software may cause data loss problems, so it is necessary to use anti-virus software to scan SD card regularly.

Back up data in time: important data in mobile phones or digital cameras should be backed up in time, which can effectively avoid many data loss problems.


Through the above method, the lost data on the SD card is recovered successfully, isn't it very simple? In the future, if you encounter the problem of data loss of SD card memory card, you can directly recover the memory card data according to this tutorial, without spending time and experience in SD card after-sales maintenance and other places.

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