Run the downloaded .exe firmware file (e.g., 9790_7.1.0.1098_P7.1.0.569.exe ). This extracts OS files to: C:\Program Files (x86)\Common Files\Research In Motion\Shared\Loader Files
Download from archive.org (version 7.1.0.42 B37). Install on Windows 7, 8, or 10 (Windows 11 requires compatibility mode). Firmware Change Update on BLACKBERRY 9790 Bold
Use JL_Cmder or BlackBerry Swiss Army Knife (BBSAK) to perform a full wipe. Enter wipe command. Your 9790 will show a "Reload Software: 507" error – this is correct. Run the downloaded
Join the Legacy BlackBerry subreddit or the Pinstack.com forums. Search for "9790 Bellagio OS upgrade" to find archived discussions and signed firmware packages. Last updated: February 2026. Firmware links and tools are checked for validity. Use at your own risk; always scan downloaded executables with Windows Defender. Firmware Change Update on BLACKBERRY 9790 Bold