BlackBerry World shut down in 2019. To get games:
To understand the fix, one must understand the fragmentation that broke the BlackBerry 9720’s gaming ecosystem. Originally, the device ran on BlackBerry OS 7.1, which supported Java-based games (usually .jad or .cod files) and BlackBerry App World titles. However, as developers abandoned the platform, several issues arose.
First, certificate expiration rendered many older, pre-loaded games unplayable. The system’s date and time security checks would refuse to launch applications with expired digital signatures. Second, App World’s shutdown in 2019 removed the primary source of legitimate, working games. Third, resolution scaling was a nightmare; games designed for older, lower-resolution BlackBerry Curves would either display as postage-stamp-sized boxes or stretch grotesquely on the 480x360 pixel display of the 9720. Finally, input lag on emulated Java environments meant that classic titles like BrickBreaker or TheAsphalt series stuttered to the point of being unplayable. For a decade, the device was considered “broken” for gaming.
A white screen means the game is running but the display driver failed to initialize.
The fix sequence:
For 90% of users, this forces a display refresh and the game graphics appear.
If you get the error: "Download failed: The requested Kb is incorrect" – you need to edit the JAD file manually.
Tools needed: Notepad++ (on PC) or any text editor on the phone.
The fix:
While many puzzle games exist, the EA version of Bejeweled 2 was optimized for the trackpad navigation. The gems slide smoothly, and the explosions look vibrant on the 480x360 display.
If you are determined to use this device for gaming, here is what the "fixed" landscape looks like today:
Is the BlackBerry 9720 worth buying for gaming? No.
Unless you are a collector specifically looking to play Java ME games on a physical keyboard, the "fixed" experience is too much work for too little reward. The hours spent finding compatible file formats, installing BlackBerry Desktop Software, and dealing with crashes outweigh the novelty.
Recommendation: If you want retro gaming on a phone, buy a modern Android device and use an emulator. The BlackBerry 9720 is now strictly a collector's item or a digital detox dumbphone, not a gaming console.
The BlackBerry 9720, running on the legacy BlackBerry OS 7.1, faces significant gaming hurdles due to the official shutdown of BlackBerry World in January 2022. However, enthusiasts can still find "fixed" games—versions optimized or archived to run on this hardware without the need for active server connections. Why "Fixed" Games are Necessary Standard downloads often fail on the 9720 because:
Server End-of-Life: Apps requiring a BlackBerry ID or server authentication no longer function.
BIS Requirements: The stock browser originally required a BlackBerry Internet Service (BIS) plan, which is largely defunct.
Resolution Issues: Games must be specifically formatted for the 9720’s 480x360 display to avoid graphical glitches. Top Sources for Fixed BlackBerry 9720 Games
To get games running today, you must use third-party archives and manual installation methods:
Lunar Project Archive: This is a primary archival group dedicated to preserving BBOS software. They host "fixed" versions of apps and games tested for legacy compatibility.
Dedomil.net: A massive repository of Java (.jar/.jad) games. You can download games directly via Opera Mini or transfer them from a PC.
Waptrick: Best accessed through the built-in browser (if working) or Opera Mini for quick downloads of retro-style titles.
Phoneky: Offers a wide selection of 320x240 and 480x360 Java games compatible with the 9720's keypad and touch interface. How to Install Fixed Games on Your 9720
Since BlackBerry World is unavailable, use these manual methods: Over-the-Air (OTA) via Opera Mini: Download Opera Mini first, as it bypasses the need for BIS.
Navigate to a site like Dedomil and download the .jad file directly to your phone. Sideloading via PC: Download .cod or .jad/.jar files to your computer.
Use software like BBSAK (BlackBerry Swiss Army Knife) or BlackBerry Desktop Manager to "sideload" the files onto your device via USB. SD Card Method: Copy .jar files to your microSD card.
Open the File Manager on the 9720 and run the file to initiate installation. Common Fixes for Gaming Issues
Many high-end games (like Need for Speed) rely on shared libraries (e.g., net_rim_bbapi_...). If you install the game but not its required libraries, you get the dreaded “Module not found” error.