With the device wiped and the firmware prepared, you are ready to initiate the change.
Find a reputable source (such as older BlackBerry forums) that hosts official 7.1.0 bundles for the (Model number prefix: 9790 ).
If an update is available, follow these steps to update your device: Firmware Change Update on BLACKBERRY 9790 Bold
Do not skip these steps. Improper updates can lead to a "bricked" (unusable) device.
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. With the device wiped and the firmware prepared,
Download the specific BlackBerry 9790 OS update file. Look for the highest version available (typically OS 7.1 Bundle 2038 or higher ). Method 1: Using BlackBerry Desktop Software (Recommended)
Ensure your Bold 9790 has at least 70-80% battery . The update process is intense. Improper updates can lead to a "bricked" (unusable) device
For advanced users who want to "Wipe" the device clean before installing new firmware (recommended for a fresh start). Open and connect your device.
capabilities—turning your vintage Bold into a stylish Wi-Fi bridge for your modern tablet—and FM Radio support, a hidden hardware feature unlocked only by software. The Process: A Quick Refresh
If the Desktop Software does not detect an update, you can manually install a pre-downloaded OS package.