CacheBerry runs on OS 4.1 or Better
Check your OS version by opening the "Options" application and selecting "About"
Select the best version for your device
Select the option which best describes your BlackBerry device to make the most of your device features
OS 4.5, 4.3 or 4.2 (Curve 83xx, Pearl 81xx, 88xx, 87xx)
OS 4.1 (7100 Series, 7250, 7290, 7520, please check your OS version)