Dr. Mario World Error Codes 0009, 0007, 0003 Explained
Dr. Mario World, Nintendo's latest mobile offering, fired up its surgery machines just a few days ago, but players have been experiencing multiple connection problems right from the get-go. Error Codes 0009, 0007, 0003 are the primary culprits right now, and they each can be game breaking in their own way.
While Nintendo has acknowledged the problems, it hasn't quite been able to fix them, so this is very much still an ongoing situation.
Dr. Mario World Error 0003
Error 0003 is the one that prevents you from logging into the game. It's related to problems with Nintendo's servers or possibly your own phone, and it keeps you stuck on the login screen.
Fortunately, there are a few possible workarounds for this particular error code.
Nintendo updated Dr. Mario World on July 10 and recommends that, should you encounter Error Code 0003, you should ensure the game is running the latest version.
If, for some reason, that can't be done when prompted to update, you can always go under the game's files in your phone and re-download, which will include the latest updates.
Of course, if it isn't your phone, then it could just be Nintendo's servers. Dr. Mario World is a highly anticipated and brand-new mobile game; it's always a possibility demand swamps the servers from time to time.
If updating the game's files doesn't work, the best bet for now, unfortunately, is just to wait a little while and try again.
Dr Mario World Error Codes 0007 and 0009
Error Code 0007 and error code 0009 cause more problems, but are a little trickier to understand.
Both are classified as some kind of communication or connection error, though some players have reported receiving both codes at different times, without seemingly doing or experiencing anything different each time.
To make matters worse, it's completely random when the codes pop up and can happen in the middle of a level, costing a valuable Heart and level progress.
As of now, there's no known way around Error Codes 0007 and 0009. One player thought it was an issue with their Bluetooth, while another solved the problem by turning Wi-Fi off and using cellular data instead. These aren't surefire fixes and don't work for everyone, though.
Given the official recognition on the Dr. Mario World Twitter page of network issues causing in-game problems, it seems this is probably some kind of server issue and not anything wrong with your phone's connection.
If so, we'll just have to wait for yet another patch to correct the bugs. When it happens, we'll update with any relevant fixes required for overcoming these error codes.