If your Android device won’t mount an SD card, there are a few things you can do to try and fix the problem. Here are some tips:

  1. Check to see if the SD card is properly inserted into your Android device. Make sure that the card is fully inserted into the port on your device and that it’s facing the correct way.
  2. Try restarting your Android device and/or removing and reinserting the SD card several times.
  3. If all of these solutions fail, you may need to take your Android device to a service center for repair or replacement. ..