What does it mean that the memory card is write-protected? What should I do after being write-protected?
Abstract: When we use the memory card, we sometimes find that the memory card is write-protected, which makes many friends very annoyed. Then how to remove the write-protection of the memory card? What are the reasons why the memory card is write-protected? Let me introduce you today.
When we use the memory card, we sometimes find that the memory card is write-protected, which makes many friends very annoyed. Then how to remove the write-protection of the memory card? What are the reasons why the memory card is write-protected? Let me introduce you today.
What does it mean that the memory card is write-protected?
"write" protection means that the disk cannot be "written" but can only be "read". When the write protection is turned on, the data in the disk will not be modified, effectively protecting the disk data. It can also prevent viruses from infecting the disk.
"Read-only" files are also called write-protected files. In other words, the content can be modified but not saved. But it is different from read-only, read-only can be deleted, but write-protected cannot be deleted. Write protection, on the one hand, protects the original files and prevents misoperation; on the other hand, it avoids virus attacks on file data.
The memory card is write-protected in two levels, one is hardware write protection, which is often referred to as a write protection switch, hard disk restore card; the other is software write protection, which is to write-protect files through management tools. The advantage of the pure software approach is its convenience, flexibility, and low cost.
How to remove the write protection of the memory card?
There are usually many reasons for the memory card to be write-protected, that is, human factors and hardware problems. The best way to deal with such problems is to take a one-by-one investigation and determine the root cause of the problem step by step. The following is how to remove the write protection of the memory card.
Case 1: The memory card itself is normal
Method 1. Make sure that the write-protect switch of the memory card is off
Memory card write protection
Some memory cards are indeed write-protected. Compared with RS-memory cards, there is a write-protect switch on the card, which is turned off by default, but sometimes we accidentally turn it on, which will cause write-protection problems. If you encounter a write protection situation, it is recommended that you check the memory card itself and turn it off according to the above picture. Let's see if the problem is solved.
Method 2. Reconnect the memory card, card reader and the connection interface with the computer to make sure that the components are properly connected to prevent data reading and writing failures caused by poor contact.
Method 3. The memory card has been plugged and unplugged for a long time, causing the metal contact piece to be oxidized or worn. In this case, use the method to solve the memory stick. Find an eraser and rub back and forth on the metal piece. In general, it can be solved without major damage.
Case 2: The memory card is abnormal
Method 4. Try to repair the system bad block
Use the disk repair program to repair the memory card.
Open My Computer, find the drive letter of the memory card and right-click on it, select "Properties"-"Tools", click "Start Error Checking", and select "Automatically repair files" in the pop-up "Check Disk" dialog box System error" and "Scan and try to recover bad sectors", click "Start" to perform the repair operation. After completing the repair operation, format the memory card once.
Method 5. Use memory card repair software to solve
If the above two methods do not work, it means that your memory card hardware has a serious problem, so you can only use the memory card repair tool, which will format the data, so the successful repair data will be gone.
There are also many kinds of software of this kind, which can be downloaded from the U disk network. The recommended software is SDFormatter. It is easy to use. Simply plug the card into the computer, open the software, and click Start. It will prompt that formatting will lose data, and ask you if you are sure, click OK and wait for a while to repair successfully.
If the memory card repair tool can't solve it, you can consider giving up your card.
Through the above content, we have understood the reasons and solutions for the memory card being write-protected. It can be seen that there are many solutions to the memory card being write-protected, but we need to find the reason to better symptom. solve.