Firmware Change Update On Blackberry 9790 Bold -

The specific OS 7.1 bundle for the 9790 (usually an .exe file provided by carriers).

A critical third-party utility used for wiping the device's memory and handling advanced firmware operations.

There are two primary methods to update the firmware on your BlackBerry 9790 Bold:

Newer firmwares fix bugs that can cause random restarts, screen freezing, or app crashes.

Note: Deleting this file is mandatory. If you do not delete it, the installation utility will block the update if the firmware carrier brand does not exactly match your physical phone's original carrier. Step 3: Wiping the Old Operating System Firmware Change Update on BLACKBERRY 9790 Bold

The initial boot phase can take up to 10–15 minutes as the system builds its internal cache. Do not pull the battery.

Switch to a rear motherboard USB port on your PC and try a different Micro-USB cable. Heavily corrupted boot sector or dead battery.

Use BlackBerry Desktop Software to back up contacts, messages, and settings. Flashing firmware wipes the device completely.

, a stalwart of the BlackBerry OS 7 era, combined a high-resolution touch screen with the classic, tactile BlackBerry keyboard. While newer devices dominate the market in 2026, the The specific OS 7

: Go to C:\Program Files (x86)\Common Files\Research In Motion\AppLoader on your PC and delete the vendor.xml file. This allows you to install firmware from a different carrier.

: A stable connection is critical to avoid interruptions that could crash the OS.

Verdict

3. Method 1: Using BlackBerry Desktop Software (Standard Update) This is the safest method for a standard version bump. Connect your BlackBerry 9790 to your computer via USB. Open . Note: Deleting this file is mandatory

If you are flashing firmware that did not originate from your phone's original cellular carrier, the installation tool will block it unless you remove the vendor restrictions. Open Windows Explorer on your PC.

What's improved

Q: Can I downgrade my firmware version? A: Yes, but it's not recommended, as downgrading may cause issues with your device's performance and functionality.

| OS Version (Bundle) | Release Date | Key Features / Changes | Reported User Feedback / Performance | | :--- | :--- | :--- | :--- | | (7.0.0.2356) | Dec 2011 | First official OS release for the Bold 9790 | Early adoption OS. | | 7.1.0.336 (7.1.0.1336) | March 2012 | Introduced major OS 7.1 features: Mobile Hotspot, Wi-Fi Calling, Device Analyzer, Battery Saving Mode, Media Server, BlackBerry Tag | Restored ringtone volume to "Loud" and improved battery life over leaked versions. | | 7.1.0.523 (7.1.0.1679) | June 2012 | Enhanced NFC features and added a new Application Resource Manager | Dramatically reduced battery drain (from ~5.5%/hr to ~3.5%/hr). Lowered device temperature significantly. Improved radio for more stable signal. | | 7.1.0.569 (7.1.0.1717) | July 2012 | Smaller update focusing on refining the OS 7.1 experience | Improved overall smoothness and browser speed over .523. Noted longer boot time. | | 7.1.0.746 (7.1.0.2257) | Dec 2012 | Incremental stability and performance update | Focused on internal system refinements. | | 7.1.0.794 (7.1.0.2220) | Jan 2013 | General performance and stability enhancements | Community feedback was generally positive, noting improved daily performance. | | 7.1.0.907 (7.1.0.2494) | April 2013 | Latest build for the 9790 from various carriers, including Proximus and Vodafone UK | Users noted the Device Analyzer was hidden by default (enabled by pressing Alt + BBDA in Options), and some reported YouTube video playback errors. | | 7.1.0.1047 (7.1.0.2841) | Sep 2013 | Final major OS update released for the Bold 9790 | A stable and polished final version, representing the culmination of updates for this device. |

Flashing or changing firmware will completely wipe the internal storage of your device. Launch on your PC. Connect your Bold 9790 via the USB cable. Select Back up now from the main dashboard.