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Author Topic: Genesis checksum issues  (Read 2650 times)

vivify93

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Genesis checksum issues
« on: April 06, 2011, 12:18:42 am »
Hello, everyone! More Phantasy Star troubles! Long story short, I suddenly got the urge to try this lost little series again one day. I ragequit before and lost all my info and hacks--good thing that I was only doing simple text hacks. I did lose the Phantasy Star IV .TBL data, though...

Anyway, for some reason, Kega Fusion won't read my modified Phantasy Star II and Phantasy Star III ROMs. It says, "Checksum incorrect!" and displays a red screen with no sound. I know for certain this is my ROM, but I can't seem to find anything that will lead me to modify, correct, bypass or otherwise alter the checksum after some searching on the Internet.

Any help is welcome and appreciated! :)
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Djinn

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Re: Genesis checksum issues
« Reply #1 on: April 06, 2011, 12:40:06 am »
Fix checksum with that program:
http://mi.tsdx.net.ve/genSuite/gs_en.htm


vivify93

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Re: Genesis checksum issues
« Reply #2 on: April 06, 2011, 12:47:24 am »
Thank you very much, Djinn! ♥
[...] right here we have an example of the capacity human beings have for altruistic behavior...

...We call it romhacking.net. ;)

Azkadellia

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Re: Genesis checksum issues
« Reply #3 on: April 06, 2011, 01:04:03 am »
Also, Kega Fusion has a fix checksum option in it's menu.
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Tony H

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Re: Genesis checksum issues
« Reply #4 on: April 07, 2011, 08:32:40 pm »
Here's a guide on how to make a Game Genie code to disable the checksum check, or you can hack/patch the GG code into the ROM to permanently disable the checksum check.

http://codehut.gshi.org/ImprovedMasterCodes.txt
« Last Edit: April 07, 2011, 08:39:02 pm by Tony H »
The Code Hut: http://www.angelfire.com/games2/codehut/

Game Genie codes and ROM hacking guides

vivify93

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Re: Genesis checksum issues
« Reply #5 on: April 07, 2011, 09:08:07 pm »
Thanks for all the information, everyone. My issue is fixed now. :)
[...] right here we have an example of the capacity human beings have for altruistic behavior...

...We call it romhacking.net. ;)