The characteristic of blackberry is that if you encrypt it, no one can crack any software, so you can only decrypt it yourself or disable encryption. Originally, the new memory card should be formatted in the mobile phone before use, and then the blackberry media file will be automatically generated after formatting, so that the device can be used normally. Of course, the next step needs you to decrypt and back up the file to your computer, then format it in your mobile phone or choose to repair the memory card, and finally restore the file to the memory card.