[Q] Rooting on JB Stock is it possible?

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http://forum.xda-developers.com – Hello! I bought a Transformer Tf700 the other day and stupid as I was ( It seems ) updated it to JB before unlocking the bootloader and rooting the device. So I have been searching around the forums, but it seems that there is no way to actually Root a JB device that did not unlock the bootloader in beforehand. So my question is can I root&unlock the device? The guides I have read only tells me that I can only root & unlock from ICS and to Downgrade to ICS ( from my understanding ) I need to have the bootloader unlocked... Witch makes this a vicious circle, so from what I hav (HowTos)