Firmware | Blackberry Key2

Before you do anything, verify your build. Navigate to: Settings > System > About Phone > Build Number

You will see a string like ABU879. Cross-reference it here: blackberry key2 firmware

| Build Number | Android Version | Security Patch | Risk | | :--- | :--- | :--- | :--- | | ABK787 | 8.1 | August 2018 | Vulnerable (SS7, BlueBorne) | | ABN489 | 8.1 | March 2019 | Stable, Keyboard fix | | ABU879 | 8.1 | April 2020 | Most stable final Oreo | | ACV986 | 9 Pie (Beta) | December 2019 | Buggy, battery drain | Before you do anything, verify your build

If you have ABU879, stay there. It is the holy grail of KEY2 firmware. If you have the update zip file (often

If you have the update zip file (often named something like bbf100-1_update.zip), you can apply it without unlocking the bootloader.

  • Transfer File:
  • Enter Recovery Mode:
  • Apply Update:

    • (Exact partition names and files depend on image package — follow image README.)