Round two: More accidental 16212 builds show up on Windows phones

Earlier tonight, Dona Sarkar teased the first new Windows 10 builds for the Fast ring in over two weeks: PC build 16203 and Mobile build 15220. However, the company ended up accidentally releasing build 16212 to phones and 32-bit PCs instead.

But while some PCs were able to install the build, phones were not, causing the device to crash upon booting up, leaving users with no option other than to restore through the Windows Device Recovery Tool. During this chaotic time, communication from Microsoft was minimal, with just a short tweet from Dona Sarkar that said not to install the build.

Now, less than four hours later, new builds are showing up on Windows phones. While the earlier 16212 build was from the rs_iot branch, those that check for updates now will find two identical builds from rs_xbox, and one from rs_devices.

And these aren't only being offered to the Fast ring. Anyone on the Creators Update or newer will find these builds waiting for them - including those in the Slow and Release Preview rings - and your phone might even try to install them automatically if you're not paying attention.

As was the case before, it's not recommended that you attempt to install them, and if you do, it's pretty much clear by now that you're on your own. Naturally, we'll be attempting this on a couple of devices, but that's because we're crazy. If we find any results that are different from before, we'll keep you updated.

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