1. Use whichever works for you.
2.Have you never transferred any music or any files on your sd card before?
Just copy the zip file on the sd card, use the usb mass storage mode or you can also remove your sd card and use a card reader to transfer it.
upd_1.zip worked fine. Had no problem rooting. Took around 10 mins all told.
Many thanks for your sound advice.
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