I've messed around with this a bit more to better see what's going on. I installed Rev18 (with IOS57 as the base) to my real NAND, then created wads of IOS249 and 250 with BlueDump. I installed these into my SNEEK backup with ShowMiiNAND, and both IOS's appeared as they should in the NAND backup. But when I tried to use them, apps would hang on them just like with older cIOS revisions. So I deleted 249 and 250 in ATD again, reinstalled them into SNEEK via the installer app, and they worked just fine. And now I see them in ShowMiiNand as well.rumsey said:FenrirWolf said:Yeah, I had to follow these steps before I could finally get the cIOS installed properly. Even deleting IOS249 and IOS250 in ShowMiiNAND didn't cause it to be fully erased. Only ATD did the trick.
EDIT: Oddly enough, the IOS still doesn't show up in ShowMiiNAND, though it appears to be loading code like it ought to. Weird.
Same issue here. I did these steps on several nands, on the first one 249 and 250 showed up properly in showmiiwads and i was able to delete them. In another nand 249 and 250 DIDN'T show in showmiiwads so I assumed they weren't there but I was able to tell the install was not working (since i could not install from 249 after installing... this may be confusing but i think you understand), however when i checked with ATD they showed up and deleting them and using ios36 allowed it to install properly.
It's weird but they were somehow "hidden" from showmiiwads. Anyways I imagine lots of other people who don't do thorough testing will think they have installed it properly when they in fact have not. Luckily we caught it. Glad that other peoples input were ably to verify my observations, when i do this on other people's wiis i will be sure to double check it installed properly.
Now what's that all mean? Not entirely sure. I guess the lesson here is to run the installer app in SNEEK instead of installing rev18 via ShowMiiNAND.