Cases on SanDisk 32GB Micro SD Card Data Loss
1. My mobile phone said that my 32GB SanDisk micro SD card is corrupted all of a sudden after I took some pictures yesterday. I can do all usual things with my phone like sending messages, and making calls. But I cannot open the micro SD card since it says card is corrupted. Then I tried to connect the micro SD card to my laptop, but it said memory card needs to be formatted. When I decided to format the memory card, it kept saying memory card not found. How can I make the micro SD card work properly on my phone or PC?
2. I have a 32GB SanDisk micro SD card on my smartphone, but I have no idea what happened to the card that the memory card is no longer detected by my phone. I have restarted the smartphone for several times, but every time the phone always said there is no memory card. Now, what I want to do is to get back the data inside the micro SD card on my smartphone. Can anyone give me a clue?
Method to Restore Undetectable Micro SD Card
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Reasons for Micro SD Card Not Detectable and Possible Solutions
Micro SD card is damaged: it means the micro SD card has been physically damaged due to some reasons. For example, the micro SD card is fall into water or drop from a high place, so the chip of the micro SD card is damaged and unable to be detected by a mobile phone or other devices. In this case, you are unable to restore data or fix the micro SD card.
Micro SD card has bad sectors: usually, if a micro SD card has been used for a long time or has been infected with virus, it will have bad sectors. In this case, you can connect the card to a computer to repair the bad sectors by relying on windows built-in tool or running a professional bad sectors repair program. Or you can try to format the memory card. What you need to pay attention is that you had better repair the bad sectors when data has been restored.