Contra flash hacked

At this point, I usually like to attempt additional dumps so I can compare the file hashes and see that we have a good clean dump. The hashes for each dump match, so we likely got a good dump here.

Intro I was at my local Target recently and spotted the section near the video games, where there were some little collectable arcade systems and handhelds that play games like Pac-Man, Galaga, and Contra. Teardown Inside the game console, there are multiple components of interest. Hardware Probing Initially, my first thoughts after opening the device were to attempt to get a flash dump. Figure 4 — NAND Flash Block Diagram After reviewing the block diagram, we learn the following: The flash is organized by blocks Blocks consist of 64 pages A page consists of 2, bytes of data bytes of actual data 64 bytes reserved for ECC data A column address is used to index into the page to read specific bytes So, to dump the data, we would need to load the first page into the data buffer, set the column address to the first bytes, and start reading.

Figure 6 — Probing the NAND Flash With everything hooked up, we can try to do a simple operation to make sure we have everything set up correctly. Dumping the Flash….

I could have attempted to debug the communication on a logic analyzer or oscilloscope to determine the issue, but I ended up not needing to go down this road, as it turns out there is a much better way to dump the data… RTFM — USB Recovery Doing a little bit of Google searching on the RK chip revealed that it is commonly used in lower-end Android devices and TV boxes.

If we go back to the NAND datasheet, we can see that it contains 65, pages of data with 2, bytes per page for a total of ,, bytes of data. More Like This. Real or Fake? If you do not have a gamepad, you can buy one of these NES controllers:.

These emulators differ not only in the technology they use to emulate old games, but also in support of various game controllers, multiplayer mode, mobile phone touchscreen, emulation speed, absence or presence of embedded ads and in many other parameters. For maximum gaming enjoyment, it's important to choose the right emulator, because on each PC and in different Internet browsers, the individual emulators behave differently.

You can copy it freely, but indicate the origin and keep the license. By using this website, you agree with the storing of cookies in your computer unless you disable them in your Internet browser settings. All games Advanced Search. Contra - Nintendo NES system. Connecting a remote emulator. English Czech.

NES gamepad:. Gamepad control:. Player Emulator selection:. Other platforms:. Game info:. Game title:. Author released :. Konami Action, Platform, Shooter. Game manual:. File size:. Game size:. Answer : Watch this video for instructions on what to do. When you download this hack the download will contain a.

The easiest thing to do is copy the. Now launch your emulator and then open the ROM and you should be able to play the hack. Answer : Watch this video which will show you what to do. Answer : You can download the tool from Here. Question : How can I submit my rating of this game Answer : If you have played this game please let us know what you thought of it by submitting your rating below and also post a comment to let us know what you thought of this game.