Every time an OS leak appears it seems as though the BlackBerry Z10 owners with the STL100-1 variation get left out. Understandably, that's a bit upsetting. This time around though, there is joy to be had as OS 10.1.0.2354 is now available for download. It comes as a full auto-loader file, for simplicity sake, meaning there's no difference in the methodology of installing this versus any other leak. Realistically, it's been released in Romania but this is a packaged up version for all STL100-1 users.
As always, the typical disclaimers do apply and again, this is only for the STL100-1 variations. Use caution when installing a leaked OS like this and remember if you break your phone it's not our fault. Also, a good idea to make a backup because you're essentially performing a factory restore on your device. If you don't want to lose data, a backup is needed. You'll need a Windows PC to install these files and If it goes downhill, remember you can always wipe and restore your device.