The leaks for the Z10 are rolling to our hands faster than I have seen in any other device in the 10 years I have been a BlackBerry user. This time we get 10.1.0.2009 for the 100-4. Now even though it is for the 100-4 it has been confirmed working on a 100-2 and 100-3. Feel free to download it from the link below and try it out. Please remember to make a back up of your device and proceed with caution.