Hi, I have a GBxCart RW + FlashGBX, and I'm trying to write an emulator .sav to a batteryless SRAM repro cart (FlashGBX identifies it as: Save Type: Unlicensed 512K SRAM 64KiB, Cartridge Type: 2006_TSOP_64BALL_6106 with W29GL128SH9B). My emulator save is 131088 bytes ("Pokemon - Emerald Version.zip"; 128KB + 16 byte header I think). Every attempt to write it via FlashGBX ends in either "save file was erased due to corruption" or it reverts to a previous save. I also tried patching a fresh Emerald ROM with the gbarompatcher website (SRAM Batteryless patch) and writing that instead, same result. I dumped the SRAM after making a test save on the cart and ran it through Python to check the sector structure, the magic bytes don't match standard Emerald format (expected 0x08012025, getting values like 0x01006f4f). PKHeX also rejects the dumped .sav with "unsupported file type/size" even though it's 65536 bytes. ("FreshPatched.zip" is a rom and save dump from after I wrote the patched rom to the cart, and "TestSave.zip" is a save on said patched rom up to the point of acquiring a starter, and then saved at Route 101. I progressed to the same point for "OG.zip") Writing to the OG, Patched, and Test-Saved roms through FlashGBX and injections all ended in errors, regardless of how many times I tried to read the bytes and find the save point. At some point in the process, it started saying that the SRAM size was 64KiB even though I could have sworn it was saying 128KiB for a while but then it changed and I don't know how or why that might be. Maybe I'm just going insane. I've been doing trial-and-error for two days now. Questions: What save format does a batteryless SRAM cart like this actually use, and is it compatible with a standard emulator .sav at all? How can I write my save properly to a cart like this? Is there a tool to convert/inject an emulator save into the format this cart expects? Thanks in advance.

PocketNES update, assisted by AI

Krem Quay · 2026-05-13T13:11:26+00:00

Thanks to AI like Gemini and Claude Opus, a person like me who doesn't know anything about coding can add more mappers to PocketNES. Take a look: https://github.com/GamingFanboy365/pocketnes

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Emulation gba .cht file maker?

Thread starter LHunterO78
Start date Jun 11, 2010
Views 16,501
Replies 4

LHunterO78

Member

Newcomer

Level 1

Jun 11, 2010

I have a ds iplayer gba emulater and i not sure if i should be asking it here but i want to make a .cht file for it to read so i can cheat! Yay for cheating!

Matt140

Well-Known Member

Member

Level 2

Jun 11, 2010

You can use my cheat maker found here

LHunterO78

Member

Newcomer

Level 1

Jun 16, 2010

Matt140 said:
You can use my cheat maker found here

thanks

LHunterO78

Member

Newcomer

Level 1

Jun 16, 2010

Matt140 said:
You can use my cheat maker found here

it made my cht file and my iplater knows the cheat but it doesnt do any thing

thaddius

Charmander is not pleased.

Member

Level 9

Jun 16, 2010

There is a collection of GBA cheats in the cheat section of GBA temp.

I could never get cheats to work on my iPlayer though. I'd be interested to hear if you happen to get them too.

EDIT: Looks like you ran into the same problem as me. I'm beginning to think that the cheat function was never implemented in the iPlayer's GBA emu. Everyone has advice on how to do it, but I haven't found anyone who's actually got it working.