The BerryLeaks team has scored again with OS 10.2.1.200 for Z10 STL-100-2/3/4 models. Sadly the Q10 SQN models and the Z10 STL100-1 are not getting support on this one. This one only works with the 10.2.0.1372 radio file which is included in this autoloader and probably explains the limitations. The other limitation is that there are pin watermarks in the four corners of the screen that cannot be removed.
Check out the downloads below and the instructions here: