RIM BlackBerry - Recent Questions, Troubleshooting & Support - Page 8
When i put my media card in my blackberry it says its not there?
back up first all of your files.then format your media card using your Blackberry,not your PC.If it is still same problem after formatting,try to replace another media card and check if other media is working in your phone.lastly,if still not working its already a hardware problem,its a memory card IC,not working anymore,you must replace it.
How do l work my blackberry9720
There are many videos on Youtube, just run a search with the next keywords:
blackberry 9720 walkthrough
Looking at these videos maybe of help and inspiration.
Good luck!
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