Last month we have got a leaked FW of BB10 OS which has all the functionality that Z10 includes. Now again latest version of BB10 OS v10.0.10.648 has leaked for the BlackBerry 10 Dev Alpha. For Dev Alpha users, this update brings along some features and fixes that some Z10 owners have received through updates.
I have flashed my Dev Alpha A using this latest leaked FW 10.0.10.648 and its working properly, let me know if the same version works for Dev Alpha B
Note: GadgetnMore team takes no responsibility if your phone get dead while installing. Do at your own risk
Didn’t know how to install FW on your Dev Alpha?
Here is the procedure on installing FW on your Dev Alpha