(adsbygoogle = window.adsbygoogle || []).push({}); I'm wondering if it would mess up the firmware... I'm upgrading to 500gb from 40gb.

I heard somewhere that it could mess with the CFW. I'm on 4.46 Rebug DEX.

Thanks --- ^_^

no just switch hdd it will re install the dex firmware on the new hdd

You are fine. Just go into recovery mode and reinstall your current firmware. Although, if you would like just as a fail safe. Go back to 3.55 OFW and switch out your HDD then install 3.55 OFW again.