Seizefun Data Frog SF2000 Handheld Game Console, 3-inch IPS HD Screen Portable Handheld Nostalgic Arcade Retro Game Machine, 1500mAh Battery, Built-in 6000Games, Support 7 Emulators

Product Information

May 2023: I can 100% confirm that the devices supports larger SD cards. I upgraded safely to a 32GB SD by flashing the image provided by Data Frog using Balena Etcher, and then resizing the partition to the max available using Minitool Partition Wizard. For safety, I kept velocity37's firmware modification (not sure if it needs to be there permanently or not). Worked just fine. Stores the settings for UI language and TV system. Two 32-bit words (4-bytes), little endian. The first is UI language; 0x00000000 is English, 0x01000000 is Chinese, etc.. The second is the TV system setting; 0x00000000 is NTSC, 0x01000000 is PAL. Note the "🚩" icon here indicates the format of the data, or the permissible values were changed (as opposed to the data itself, which will vary from device to device based on user settings) So you can try launching the game first, and then plug in the A/V cable to get full volume on the TV. Game saves don't seem to be working for me? Save states are fine, but the built-in save function in games doesn't seem to work? The operating system does allow for save states, as well. So you do have the ability to save and load your game play on the fly. This is a nice touch for a budget handheld. Gaming Performance

Chinese translations of the English ROM names, used to display the game-lists when the UI language is set to Chinese. Not all game names are translated The last four bytes are a little-endian Uint32 storing the offset within the file of where the thumbnail metadata starts (i.e., the offset of the first byte of width data)If you only care about how your theme looks on the internal display, and don't care about how it looks on AV output, design for a 320 x 240 base resolution and do a nearest-neighbour 2x upscale when converting to SF2000 formats

Discord user nanchon18#2262 discovered that with Neo Geo games using the Unibios, the Unibios menu can be accessed in-game by pressing SELECT + START + up simultaneously. The Unibios allows access to features like cheats and DIP-switch settings for the game. .skp Files You can add your own ROMs to the roms folder on the microSD card, which will then appear in the user ROMs menu of the device. You can also modify the built-in ROM lists using FROGTOOL bnister discovered that the OS supports loading game-specific key bindings from .kmp files, stored in the save folder for each system and named after a game's ROM file (e.g., /FC/save/Game Name.EXT.kmp). They also discovered where in the bisrv.asd file the default mappings for each emulator are stored. Working with this information, notv37 worked out what bits related to what buttons for each emulator. Using both their findings, we now have a tool which can be used to update both the global button mappings for the emulators, as well as create per-ROM mappings - you can find this tool here. Emulator is PicoDrive 1.91 (Git commit cbc93b6). Works pretty well. This emulator is capable of loading Master System ROMs if placed in the user ROMs folder on the microSD card; Game Gear ROMs do not load. Some PAL-region games may run too fast; NTSC-region games seem to always run at the correct speed. On the original firmware, A was mapped to A, B was mapped to B, and RB was mapped to C for some reason. See " Button Mappings/Key Bindings" section below. Game BoyTitles for the Game Boy and Game Boy Color play well. Super Nintendo is hit or miss. And Game Boy Advance is only going to be okay (not great).

I advise that you switch comments sorting to "sort by: old", as there is a second post by me that will contain secondary (and less vital) information, as well as outdated information and other news. For example, it now contains information on a new colour version of the SF2000 being released. For the price of dinner, you can give somebody the joy of retro video games in a semi-decent handheld device that looks kind of cute and actually plays games okay.Yes" and "No" text, with "No" selected; used when being asked if you want to overwrite a save-game slot Added an FAQ. Added a section about the bootloader bug, along with steps for installing bnister's patch. Added a link to ignatzdraconis's Gitlab Repo. Some folks have updated their Discord handles to Discord's new naming convention, and those handles have been updated throughout. Another custom firmware FAQ update (a second core, gpSP, has now been compiled and is at an early stage of running). Used to store the list of ROMs added to the Favorites list; only appears after the first game is favourited after installing the 05.15 or later firmware. User ROMs cannot be added to favourites, only built-in games This is a stripped-down, bare-bones version of the Datafrog SF2000 OS without any ROMS included. This version is v1.6, also known as "08.03" (the date it was first spotted in the wild).