This way is just for who only has 3DS console. We suggest you to upgrade on a never upgraded console or a DS, it’s much safer!
This is a way to upgrade DSTWO fireware on a ver2.0 3DS console directly. Please read the red sentence carefully, or your DSTWO may be broken!
NOTE: Please follow the guide, or there is a risk of bricking!
1, Essential condition: your DSTWO must be recognized on the ver2.0 3DS console. And you can see the icon of it.
2, Upgrade.
(i) rename the dstwoupdate.dat as dstwoupdateb.dat. Then copy dstwoupdateb.dat to the root of microsd card.
(ii) Inject microsd card into DSTWO, then inject DSTWO into 3DS console. Turn on the console and enter DSTWO, you will see this screen:
(it also appears on Japanese version console), please stay here and wait 3 minutes (it’s very important, and must be 3 minutes! Or it’s very dangerous for DSTWO!), please dont do anything except waitting :p
Turn off the console after 3 minutes, then delect dstwoupdateb.dat file from your microsd card. (very important! You have to delect it!)
Ok, that’s all, enjoy DSTWO on your ver2.0 3DS!
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Thank you..really informative!!