The device had a full QWERTY thumb keyboard . Reviewers from PCMag
The BlackBerry Curve 8520 Go to product viewer dialog for this item. blackberry 8250 curve
| Action | How To | | :--- | :--- | | | Press any key or the trackball | | Move cursor | Roll the trackball | | Select | Press (click) the trackball | | Back / Cancel | Press the Back key (right of trackball) | | Menu | Press the BlackBerry key (left of trackball, 7 dots) | | End call / Home | Press the End/Power key | | Open app switcher | Hold the BlackBerry key | | Lock keyboard | Hold the * (star) key (or use standby from top button) | The device had a full QWERTY thumb keyboard
| Feature | Specification | | :--- | :--- | | | CDMA 800/1900 MHz (no GSM, no SIM slot) | | Processor | 312 MHz Intel XScale | | RAM | 64 MB | | Storage | 128 MB flash (expandable via microSD up to 32GB) | | Display | 2.5-inch TFT, 320x240 pixels, 65K colors | | Keyboard | 35-key backlit QWERTY or SureType (model dependent) | | Camera | 2.0 MP with flash | | Battery | Removable 1000-1150 mAh (e.g., C-S2) | | Connectivity | USB 2.0, Bluetooth 2.0 + EDR, No Wi-Fi (on most 82xx) | | OS | BlackBerry OS 4.5 – 4.6 | | Headphone | 3.5mm jack | | Trackball | Yes (illuminated) | Bluetooth 2.0 + EDR
If you currently own an 8250 and are experiencing issues, try these fixes:
| Problem | Likely Cause | Solution | | :--- | :--- | :--- | | | Old battery (Li-ion aged) | Replace with C-S2 compatible battery | | Trackball doesn't click | Dirt or wear | Clean with isopropyl alcohol + Q-tip; rotate ball to remove debris | | No network signal | CDMA network shutdown | Phone is effectively an offline device now | | Cannot install apps | BIS dead, App World closed | Sideload .cod/.jad files via USB using javaloader or BBSAK | | White screen / error 507 | OS corrupt | Reload OS via BlackBerry Desktop Manager (if you can find OS 4.5/4.6 for 8250) | | Can't connect to PC | Missing drivers | Use Windows 7 32-bit; install BlackBerry Desktop Software 6.0 or 7.1 |