No, that post is not intended to fix anything, as it clearly says.

Additionally, the nitdroid instructions are at best incomplete. If you only do that, things like e.g. the positioningd database stops updating so you will get cold GPS starts only (though some people may consider that a feature...).

I keep that the best option is a reflash -- qole made excellent instructions a few pages ago. You can certainly do it without reflashing -- aka apscli --, but why not use the opportunity to take backups and clean start? Less problems in the future... Also, a reflash is the _only_ way back, so by doing it now you force yourself to learn how it's done, find the proper firmware images for your variant, etc.