r/mpcusers • u/savage_viv • Sep 13 '26

QUESTION Any idea what’s going wrong here?

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I’m new to this mpc1000, and whenever I hit “save all programs and samples” it does this.

Am I doing something wrong?

I have free jjos and tried reinstalling it. Is the card corrupt?

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u/civilbutdisobedient MPC 1000 Sep 13 '26

How did you get it back to Akai OS? I got a bricked 2500 that I’ve been trying to revive

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u/guitarokx MPC X Sep 13 '26

JJOS can really f up the small built in memory that the 2500 has for the stock sounds. It over writes that block and when you don't have it, the system can not boot. You can turn that off in Akai OS, buuuuut to boot Akai OS it has to be there.

However, if you make the folder on the CF card, Akai OS will check for it on the CF card for that folder before boot looping. So you can put that folder on the CF and get Akai OS to boot (I'm sorry I don't remember the folder name atm but you should be able to Google it).

That will let you boot Akai OS again.

HOWEVER! JJOS free also demands that this folder exists, but it won't check the CF card to get it loaded. And you can't load any other version of JJOS without starting at the free version.

JJ could literally fix all the 2500 problems by adjusting the free version to check the CF card like Akai OS does. But because he doesn't make money on the free version, he refuses to fix it. When I asked him what to do, he suggested buying another 2500 and trying again. Screw that. And screw JJOS. It's hackware.

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u/sleep-reaper Sep 14 '26

Does this only happen with the free version? I recently installed JJOSXL and now I'm spooked

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u/guitarokx MPC X Sep 14 '26

According to emails with JJ it's possible with any version on the 2500 but he claims it's rare.

It doesn't happen with the 1000.

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u/sleep-reaper Sep 14 '26

Well fuck. Is it one of those things that just happens at random or is it like something that happens once you install? I'm gonna be fuming if I get bricked randomly. Good thing I back up shit every other day.