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I dont know how many on forum are aware of this but there is a secret hidden menu for debugging and developers in backberry called as ENGINEERING MODE i used this mode twice while unlocking GSM of 8830 , by MFI TOOL which disabled mass strogae mode by default when writing new ram image this mode has lot of option . though i dont have bb to explore more options , but a lot can be done , besides enabling and disabling mass storage HOW TO GET INTO THIS SCREEN first of all u will need engineering screen code generator the mfi tool has this code generator all u have to do is -On device press ALT+SHIFT+H at same time , it will open help screen - on pc start MFI tool , donot connect ur blackberry , and press CTRL+ALT+SHIFT+F12 It wil open a menu in that click ESCREEN CODES it will open a code generator now look at help screen u opened on bb fill in the details in code generator exactly as u see in bb help screen it will generate a code now on ur bb , still in help screen , just type that code by pressing buttons ( for numbers use alt ) it wont show anyting on screen but when u finish typing code it will open up engineering screen it also has option in radio to enable/disable gps .