Is there anyway to upgrade to jelly bean while internal memory and resetting
If you ever give your phone to a repair person or a rep at a carrier store you should assume your data can and will be looked at.  Unfortunately, I saw this all the time while working for Verizon.  We had reps that couldn't wait to get their hands on a phone and start looking through pictures and other private files of customers.  I've actually seen reps save customers pictures to their own device!  It's one of the many, many reasons I quit.  Bottom line: Anything on your phone can potentially be accessed and seen.