Download the latest available official firmware (typically OS 7.1.0.1098 or similar) from community-maintained archives like Internet Archive (Archive.org) or LunarProject . Look for "AllLang" or "Multilanguage" in the filename to ensure all features are included.
An updated flash file for the 9790 generally includes the following improvements: blackberry 9790 flash file updated
October 26, 2023 | Category: Firmware Updates & Repair blackberry 9790 flash file updated
file. This allows you to flash firmware from a different carrier than your original device. Run Loader Loader.exe blackberry 9790 flash file updated