Causes of Unreadable SD Card on Android – As you know that smartphones with the Android operating system have been able to perform very diverse functions. You can no longer only use your Android smartphone to communicate, but you can also use this device to watch videos, play games, take pictures, listen to music, and so on. Not infrequently there are also many people who store various collections of photos, music, and personal videos on their smartphones.
To be able to store various kinds of files, of course you need a smartphone with large storage memory. Currently, there are many smartphones available with large storage memory, besides that you can also expand it again by using an SD Card that functions as an external storage memory. But sometimes you have a problem where the SD Card cannot be read on Android, this could be due to several reasons which we will review below.
Causes of Unreadable SD Card

1. The First Cause of Unreadable SD Card, SD Card Not Installed Perfectly
One of the reasons why it can’t be read on an Android device is because the card is not installed properly. This component is an external storage component so you have to install it perfectly to be able to use it, there are many smartphone users who don’t install the SD Card perfectly so it can’t be read.
2. Dirty SD Card
The second thing that is also often the cause of being unreadable on a smartphone or tablet is a dirty SD Card, you need to pay attention that a dirty external memory card will not be readable. In general, this is caused by dust or other foreign objects stuck to the yellow part of the select chip, you can clean it with a tissue.
3. SD Card is Rusty Or Scratched
The third cause that also often results in unreadability on Android devices is because the SD Card has been rusted or scratched. To find out, you can carefully examine the chip select (yellow metal) on the SD Card, generally rust and scratches occur because you remove and reinstall it too often.
4. SD Card Affected by Virus
As you know that SD Card is an external storage memory which contains various kinds of files. In general, there are many people who save files on the SD card from various other devices that are the source, such as computers, flash drives, or other smartphone devices. It could be that the file contains a virus that makes the SD Card an error and cannot be read.
5. The Cause of the Last Unread SD Card, Damaged Smartphone
The fifth thing that can also be the cause of why it can’t be read is because your smartphone is damaged. If you have checked the SD Card and do not find any problems or damage, then the cause is your smartphone, it could be that the external memory slot on the smartphone is damaged.
If you often experience SD Card problems that won’t be read, then you can check some of the causes listed above.
Also Read: Causes of Exploding Smartphone Batteries.