目前所有已知的 Wii U 漏洞(例如 Nintendo Switch RCM 漏洞)都可以被通过更新系统失效。 虽然 Wii U 不再会得到任天堂官方的技术支持,但任天堂仍然可以为其发布新的系统更新。 Namely, the updates 5.5.3 up to 5.5.6 were all released after the Wii U was discontinued, so blocking updates is still a recommended action.
While Tiramisu's PayloadLoader already has built-in update blocking functionality, it is recommended to delete the update folder to effectively block system updates. If you get a red warning screen while booting into Tiramisu, the update folder still exists and it is recommended to delete it using the guide below.
?> This method of update blocking is a bit more advanced than DNS Blocking and uses a homebrew app to modify system files. However, it has the advantage that the eShop's functionality will not be restricted.
?> This method is the easier method and is recommended to less advanced users. It does, however, prevent the eShop from working. This can be worked around by running [NNUPatcher](https://wiiubru.com/appstore/zips/nnupatcher.zip) before starting the eShop.