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Support / Retrode 2 corrupting SNES sram?
« Last post by Driftwood on 05/Mar/2019 04:16:10 AM »
I just received my retrode 2, and the first thing I tried was to back up my saved games from my US Secret of Mana cart. Unfortunately, the srm file produced by the retrode doesn't work on my sd2snes, in Higan, or in SNES9X, and when I tried my cart in my Super Nt, I can no longer access my existing saves.

I read a similar post of someone having a problem when trying to dump their gameboy saves, and the problem ended up being a manufacturing problem where one of the pins was bent, but I don't see any obvious issue with the pins in my unit (see attachment -- sorry about the low quality but the board has a 128k limit on uploads). I also saw issues with snes saves when the unit was set to 3.3V, but I double-checked that I have it set to 5V, but no luck.

I've attached the srm from the retrode2 if anyone can help me figure out how to rescue my saves, but it would be nice to know why this happened or if there is a fix.

Thanks in advance.
Support / Consistent unpredictably bad dumps of a single Game Boy Color game
« Last post by obskyr on 03/Mar/2019 06:43:59 AM »
The game in question is Kotobattle for the Game Boy Color. The symptoms are bizarre: no matter how many times I dump it, between 60 and 110 half-random bytes are incorrect. The contacts are immaculate and shiny (I even gave 'em a peace-of-mind clean with the ol' IPA and cotton bud combo). I dumped it ten times, and the results are these:

Code: [Select]
$ md5sum Kotobattle-*.gb

None of these match the expected hash of 43351CD46357BD1615A713490401FDA8. Across these ten dumps, a total of 251 addresses were dumped incorrectly at least once. Most of these (86 addresses) were incorrect only once, but some were incorrect most every time, often in similar ways. For example, 0x1C9738 was 0x03 (which is incorrect) in eight dumps, and 0x00 (which is correct) in the other two. Most of the time, though, the errors are somewhat different – like 0x0785FC, for which 0x00 is correct, which dumped incorrectly seven times as 0xFB, 0x02, 0x93, 0x02, 0xFB, 0x02, and 0x02. Another interesting pattern is that most of these errors (206 out of 251 addresses) occurred with bytes that should've been 0x00, which may or may not mean something.

The extremely weird part is this: Kotobattle has the exact same MBC (MBC5) – and even PCB (DMG-A08-10; pictures of an identical board here) – as another game I tried dumping, and yet, Kotobattle has random incorrect bytes while the other consistently dumps well. Dumping SRAM also works totally fine every time.

That the MBC and PCB are the same as for a working game suggests that it's a software issue, but the fact that the faults are so intermittent suggests a hardware issue. I'm deeply perplexed. Does anyone have any idea what the problem could possibly be?

My Retrode is hardware version 2.2, firmware version .25a-beta, and I'm on Windows 10.

I've now tried reflowing the mask ROM and the MBC to no avail. The same mind-boggling symptoms persist. It's a bit hard to see any meaningful pattern (you can see the incorrect bytes from each dump collated here), but someone mentioned one thing: incorrectly dumped addresses with the same last three nibbles sometimes appear exactly twice. For example, 0x0907DC was incorrect 10/10 times, and 0x0AC7DC (also ends in 0x7DC) was incorrect 9/10 times – 0x5F0, 0xEBC, and 0x5C0 exhibit the same property.

At this point I'm almost considering a faulty ROM chip, but… I've never heard of mask ROM failing!
Support / Re: SNES games that may not be compatible
« Last post by Lowe0 on 22/Feb/2019 12:38:36 AM »
Can confirm Gradius III US is compatible with my Retrode.
Support / Re: SNES games that may not be compatible
« Last post by jld4snes on 19/Feb/2019 11:16:18 PM »
I think this is an issue with my Retrode which is really disappointing, as I have gone back and tried to use it on games that I have already dumped and it is no longer reading those either...
Support / Re: SNES games that may not be compatible
« Last post by jld4snes on 19/Feb/2019 04:25:55 AM »
Yes and yes.

Support / Re: SNES games that may not be compatible
« Last post by MasterOfPuppets on 19/Feb/2019 12:09:38 AM »
Are you using the most recent firmware, v0.25a? Do you have the voltage switch set correctly?

Firmware here:,392.0.html
Support / SNES games that may not be compatible
« Last post by jld4snes on 18/Feb/2019 05:40:28 AM »
   I have been using my Retrode 2 for well over a year now and I had not had any problems dumping my collection.  I picked up ten games or so recently and of those I have had no luck with the following games:

Gradius 3
Super Tennis
Chess Master

*I have cleaned the pins with isopropyl alcohol and a q-tip
**I have modified the Config file to force "snes" and tried numerous sizes to force as well.

Has anyone else had problems with these games? 

Thank you.
General Discussion / Re: Virtual Boy SRAM Support (FW v0.25)
« Last post by skaman on 18/Feb/2019 04:50:37 AM »
Love it!

That's a great enhancement.

General Discussion / Re: Virtual Boy SRAM Support (FW v0.25)
« Last post by The Real Phoenix on 15/Feb/2019 02:06:35 AM »
Small update, I made a 3D printed "sled" to force the insertion straight and avoid bending the pins.

and a clear laserdecal as sticker:
General Discussion / Re: Game Gear SMS Plugin Question
« Last post by speedyjohnny on 12/Feb/2019 07:30:45 AM »
Would be great to see a few of these sold for people (like me) who have no skill in attaching the game gear cartridge slot to the master system adapter.
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