Originally Posted by ixtab
You can safely update from any previous PW version - jailbroken or not - to 5.3.1.
I highly recommend to re-apply the jailbreak once you're on version 5.3.1. This will make sure that all the required files are in place, even if the firmware update wiped them.
I did it, and everything is OK...
Previously I remove screensavers hack, and later I apply it again and works fine...