Hi @Armahn, sorry to hear about this.
Have you tried removing the SD card and inserting it again in your device? You can also check if you can read the SD card in a computer or another device. That way we can see if it's the SD card that is not working, or if it is the device.
If one of your friends, a family member or a colleague has an SD card, you can ask them if you borrow it and try it in your device.
Let me know how it goes!
