Lots of people trying to play Mario Kart Tour this morning like being hit with support code 805-9314. Unfortunately, this seems to be a fairly common mistake, so you are definitely not alone in experiencing it. The error does not appear to be platform specific and can appear on both Android and iOS.
Mario Kart Tour error code 805-9314 explained
Unfortunately, searching the Nintendo Support page did not return any results for that particular error code. However, the support page advises you to deal with almost all error codes in three standard ways.
- Restart the app and try again.
- Restart the device and relaunch the app after restarting
- Completely reinstall the app
Unfortunately, if none of these options fix the problem, there is nothing more you can do except wait for the developers to release an update that fixes the problem. If you are experiencing this issue, we strongly recommend that you report the issue through the appropriate channels, so that developers can understand the extent of the issue.
Keep in mind that this is launch day and issues are going to arise, especially on mobile devices where there is such a variety of phones, and where every make and model cannot be tested before release.
Due to the lack of information on the support page, I strongly recommend that you report this issue through the email address listed above. It is best to include information such as the make and model of phone you are using, the version of the operating system you are running, and what you are doing in the game when you encounter the error. This gives developers the best chance to reproduce the code and fix the problem quickly.