So you updated your PRL and all of a sudden... BAM!!! You're stuck with that annoying 1x and your download speeds have dropped from 1.2Mbps and above to about 0.12Mbps and below. You can always call Sprint, wait on hold for hours, and then finally get a rep that's going to tell you that you have to reset your phone, update your PRL (which you already did), go into a Sprint store, or basically that you're just plain SOL.
With that said, if you have a rooted handset, there is another options which I've written a step by step tutorial for. Click the "Read more" link to check it out...