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  1.    #1  
    Does the power cable have to be attached to the phone when upgrading and hot syncing from PC. The instructions call for this but my power cable is at home.
  2. #2  
    yes it exceptions....don't try without it
  3. #3  
    I absolutely concur. I got half-way through my upgrade and got the message to plug in my phone. I had to drive home (25 miles) and back to work to complete my upgrade.
    So YES, you must have your phone plugged in.
  4.    #4  

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