Happy Monday, everyone! If your day has dragged on, we have something that may cheer you up rather quickly. A new 10.2.1 OS has leaked, and is now available to download for the Z10 (STL100-2, 3, and 4), and the Z30. As always, only give these OSes a shot if you know what you’re doing. We don’t take any responsibility if you happen to brick your device attempting to load it, so proceed with caution.