Target Device: BlackBerry Bold 9780 (OS 6.0)
A: No. OS 7 requires a different GPU (340MHz vs 240MHz on the 9780). Attempting to load OS 7 firmware will hard brick the device permanently. Firmware Change Update on BLACKBERRY 9780 Bold
Unless you need a specific bug fix or language pack, staying on a stable final OS version (e.g., 6.0.0.2855) is preferable. For hobbyists, the 9780 is best preserved with its original OS or a clean, de-bloated hybrid OS from legacy communities. Target Device: BlackBerry Bold 9780 (OS 6