how to activate the reserve battery in nokia mobile phones? what to type and where to type. i tried typing *3370# in the screen, nothing happened! then i called this number *3370#, it displayed "request not complete"!!! will it work on all models? or should we type this code only when the battery gets completely dead and the phone switches off on its own?
how to use reserve battery in nokia mobile phones?
- Thread starter jagadeesh
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