What is Service books?
I have used several PDA's and never heard of them.
What does re-sending service books do?
I have seen it on BIS just not sure what they are.
Think of service books as sets of instructions /settings for your BB. You have one for browser, two for each email account, one for MMS and so on. They are sent to your device wirelessly and without them your BB features will not function.
Resending them corrects certain issues such as email not being received.
Hope that helps
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