There are situations that might have caused this error:
-
The mobile phone doesn't have support for the SD card you want to use which in this case you need to update the software on the BlackBerry
-
The SD card you want to use is actually corrupted. Attach it to a card reader then format it on the PC.
Official list for supported SD cards based on the software of the device:
BlackBerry Device Software 4.2.0 Up to 2 GB
BlackBerry Device Software 4.2.1 Up to 4 GB
BlackBerry Device Software 4.2.2 Up to 4 GB
BlackBerry Device Software 4.2.2.196 Up to 8 GB per Verizon Release Notes and confirmed by users.
BlackBerry Device Software 4.3.0 Up to 8 GB
BlackBerry Device Software 4.5.0 Up to 8 GB
BlackBerry Device Software 4.5.0.81 and later Up to 16 GB
BlackBerry Device Software 4.6.0 and later Up to 32 GB