the desired firmware (.exe) to your PC.
There are two primary methods to update your firmware: using (Official) or Loader.exe (Manual/Hybrid). Method 1: Using BlackBerry Desktop Software (Recommended) This is the safest method for most users.
Optimized OS versions can improve battery efficiency, a key factor for older devices.
The software should detect a new version automatically. If not, go to the "Device" menu and select "Update." Firmware Change Update on BLACKBERRY 9790 Bold
Use BlackBerry Desktop Manager to restore:
: Ensure the micro-USB port is clean. Use a rear USB port on desktop PCs for stable power delivery.
Do NOT try to load OS 10 or Android – the 9790 is an ARMv7 device with only 512MB RAM. 7.1 is the final official firmware. the desired firmware (
This is the easiest and most secure method to update your BlackBerry 9790.
If the Desktop Software does not detect an update, you can manually install a pre-downloaded OS package.
Understanding the firmware history of the Bold 9790 is crucial for any user looking to perform an update. The device’s first OS versions started with OS 7.0.0.528, which was quickly established as a robust foundation. Optimized OS versions can improve battery efficiency, a
Are you dealing with a (like Error 507 or 205)? Are you trying to unbrand a carrier-locked device?
Since official BlackBerry servers are offline, use trusted archives:
Right-click and this file. If you find a second vendor.xml file in your user roaming folder ( %appdata%\Research In Motion\BlackBerry\Loader XML ), delete that one too. Step 3: Wipe the BlackBerry (Optional but Recommended)