Firmware Change Update On Blackberry 9790 Bold

4. Method 2: Manual Firmware Change (The "Vendor.xml" Trick)

This is the most reliable way to change or "refresh" the firmware. Download & Install : Install the BlackBerry Desktop Manager on your computer. Connect Device : Connect your via USB cable. Update Prompt Firmware Change Update on BLACKBERRY 9790 Bold

: Download the correct OS for the 9790 Bold. Look for files labeled "AllLang" or "Multilanguage" to ensure all language packs are included. Connect Device : Connect your via USB cable

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. Do NOT try to load OS 10 or

Q: Can I downgrade my firmware version? A: No, downgrading your firmware version is not recommended and may void your warranty.

Newer iterations of OS 7.1 optimized power management, specifically for the 9790’s slightly smaller battery compared to the 9900. System Stability: