The Z30 runs . The final stable firmware for all variants is 10.3.3.3216 (Software Release 10.3.3).
Since BlackBerry’s official servers are now offline, you cannot simply click “Check for Updates” on the device. You must use community resources. Blackberry Z30 Firmware
: You can use a tool called Sachesi to combine official OS and radio files into a custom .exe package for your specific Z30 model. The Z30 runs
no longer hosts these links, enthusiasts rely on the following repositories: BlackBerry Blackberry Z30 Firmware