Bummer. Also doesn’t look like RetroArch recognized AHK keystrokes. Was going to try to script my way around it
Use SetKeyDelay, -1, 110 before any Send AHK commands and they will work with Retroarch.
Can you post a full example? Thanks so much for sharing!!!
; Pause 4Joy20:: SetKeyDelay, -1, 110 Send {p} Return
I use this small AHK script to map button 20 of my 4th gamepad to send P (Pause) to Retroarch through the Launchbox frontend.
The SetKeyDelay AHK command keeps the button pressed for 110ms so Retroarch can read the key. Without SetKeyDelay some emus can’t register the key-presses because they happen too fast.
(MAME is a special case which requires the command line parameter: -keyboardprovider dinput so it can recognize the AHK dinput commands.)
Hey guys! I had the same problem, and renaming files and stuff did not work for me, I found a thread of somebody that shared his dc_flash.bin file with everybody. Since then its been working flawlessly for me.
Just download this dc_flash.bin and override the one you have. Should not ask for the date/time anymore:
Let me know how it goes!
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Be careful with BIOS files from unknown sources! For example the dc_flash.bin you posted does not match any of the known MD5 posted here: https://github.com/retropie/retropie-setup/wiki/Dreamcast
Check with: http://onlinemd5.com/
MD5sum is not listed because the dc_flash.bin was modified from a dc_nvmem.bin to override this time/date scenario. If you do not trust the file, you can give it a try in a sandboxed environment. Just my two cents for everybody struggling with this matter.
Cheers!
Hmmmm. This didn’t work for me
) :
Any tips to get it working? Could you share all your system files for DC? Maybe one of my other files conflicts?
Hey newoski!
I have zipped my system/dc folder in the below link; make a backup of your folder first just in case, and give it a try. You can run antiviruses or whatever you want on it.
Hope it works for you 
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Thanks! Will post results of test in AM
THANK YOU SO MUCH!!
Worked perfectly. No more date/time prompts.
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Glad to hear newoski 
If more people having the time/date issue can check my upload and see if it gets resolved, maybe we can leave it posted somewhere that won´t expire.
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That’s awesome someone fixed this. It’s not a huge annoyance, but it was an annoyance for sure. I’ll be sure to try this out later tonight.
Thanks for posting that
This didn’t change anything for me. The only thing I didn’t use from the folder was the VMU files because of my saves. I’m guessing it has something to do with that.
Sorry to hear that. Give it a try in backing up your dc folder, and pasting the one I uploaded entirely with mems and all. Also, try booting up the core in bios mode and in the main menu set the time/date and save the settings, and see if after that it still shows or not.
Hey no worries, I’ll give that a try tonight and see what it does for me and report back. 
I used your files and it solved the date prompt issue, doesn’t show up anymore, thanks mate.
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Excellent @aorin1
@SkyHighGam3r, in case my whole dc folder works for you, you could export your savestates to my VMUs using the VMU Explorer tool (I can give you a hand with that if you want).
Talking about saves, every time I tried Shenmue, it loads fine and the first cut scenes play fine, but as soon as the first load when the real game play starts, Reicast core crashes, so maybe if someone could share a save after this I could play it on Retroarch?
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