Support and discussion for all of Akai’s modern standalone MPCs including the MPC X / X SE, MPC Live 1, 2 & 3, MPC One / One+, MPC Key 37/61.
By Simone Mon Jul 08, 2024 7:09 am
Hi guys
I had a problem after upload to 2.17: my MPC ONE keep stuck on the loading screen. I wait hourse and nothing chaged. I removed all the devices and reboot but nothing changed.
Any of you have the same problem? It was long time no using the MPC before the update

Thank you so much to everyone :worthy:
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By NearTao Mon Jul 08, 2024 2:19 pm
I have not hit that problem, but I believe that there are a few ways documented on the forum for how to force a system reset.

If you're not comfortable with looking around and trying out a few things, my advice would be to try and reach out to Akai and see if they can help you or give you suggestions directly.
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By Neodymium Mon Jul 08, 2024 4:37 pm
Did you remove the sim card as well. Mine didn't close down properly last night, as I turned off the USB Audio Interface before it was ready and it hung. I forced a shotdown holding the power button a few times, and disconnected everything. It wasn't until I went through all that again, with the sim card out it finally booted. May have been coincidence.
By B-Wise Mon Jul 08, 2024 4:58 pm
Neodymium wrote:Did you remove the sim card as well. Mine didn't close down properly last night, as I turned off the USB Audio Interface before it was ready and it hung. I forced a shotdown holding the power button a few times, and disconnected everything. It wasn't until I went through all that again, with the sim card out it finally booted. May have been coincidence.

Let me find out MPCs can make phone calls. Didn't know they took sim cards. :mrgreen:
By Simone Tue Jul 09, 2024 7:28 am
Now the problem changed, but no fix yet. It keep showing the loading screen, then turn black. After few seconds again the loading screen, then black again. Keep like this for hours. I disconnected all the device. No results
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By Ultros Tue Jul 09, 2024 11:52 am
It's not "broken" it just needs to be restored. you need the restoration file from akai for your specific unit. it will bring it back to life.
By Simone Wed Jul 10, 2024 7:11 am
Ultros wrote:It's not "broken" it just needs to be restored. you need the restoration file from akai for your specific unit. it will bring it back to life.


In this case It will go back to fabric conditions?
By dustyslices Wed Jul 10, 2024 7:40 am
yeah, it should do.
If it doesn’t help, most likely you will need to replace internal microSD as your device show symptoms of a corrupted/dying card.
Akai firmware (in a messed up way) doesn’t really use an internal card apart of reading „templates” menu which is not required for normal operation. It won’t work without or with broken card though because the directory structure on it is an entry point for the software. (mpc documents, synths, midi mappings etc…). These directories can be empty (no files, just empty directories) / write protected or whatever but they must exist on the card. In the event you replace the card with blank formatted one, mpc will create that directory structure but won’t use it (as it’s empty) and search for applicable files (synth content, expansions, arps chords etc) on the external drives.
At the end of the day - the internal card meant to be a way for akai to deliver the factory content to you - nothing more.

EDIT:
not to derail the topic and not sure if I’m hallucinating or not but just remembered that I spoke with someone (or read an article) who said that akai had ditched the SD card in favour of emmc chip in one of the units. Don’t really remember which unit was this about neither (ONE / ONE+ ??? ) anyone could confirm ?
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By Ultros Wed Jul 10, 2024 3:26 pm
dustyslices wrote:EDIT:
not to derail the topic and not sure if I’m hallucinating or not but just remembered that I spoke with someone (or read an article) who said that akai had ditched the SD card in favour of emmc chip in one of the units. Don’t really remember which unit was this about neither (ONE / ONE+ ??? ) anyone could confirm ?


MPC one uses a partition on the internal emmc for it, its just a diff partitioning scheme but it works out because its mmcblk1p8 iirc. last partition on the disk. mpc one indeed does NOT have an sd card and its been super reliable.

Code: Select allList of partitions by disk and by name on the AKAI MPC / Force

mmcblk1p1 uboot-spl       //DO NOT TOUCH THIS (DO NOT FASTBOOT FLASH THIS OR YOU COULD WRECK IT!)
mmcblk1p2 env             //DO NOT TOUCH THIS (DO NOT FASTBOOT FLASH THIS OR YOU COULD WRECK IT!)
mmcblk1p3 uboot           //DO NOT TOUCH THIS (DO NOT FASTBOOT FLASH THIS OR YOU COULD WRECK IT!)
mmcblk1p4 splash          //the splash image that shows up when your power on normally
mmcblk1p5 recoverysplash  //the splash image that shows up in dfu
mmcblk1p6 rootfs          //root
mmcblk1p7 content         //acvs-content
mmcblk1p8 data            //az01-internal

List of partitions by disk and by name on the ENGINE OS DEVICES Denon / Numark.

mmcblk1p1 uboot-spl       //DO NOT TOUCH THIS (DO NOT FASTBOOT FLASH THIS OR YOU COULD WRECK IT!)
mmcblk1p2 env             //DO NOT TOUCH THIS (DO NOT FASTBOOT FLASH THIS OR YOU COULD WRECK IT!)
mmcblk1p3 uboot           //DO NOT TOUCH THIS (DO NOT FASTBOOT FLASH THIS OR YOU COULD WRECK IT!)
mmcblk1p4 splash          //the splash image that shows up when your power on normally
mmcblk1p5 recoverysplash  //the splash image that shows up in dfu
mmcblk1p6 rootfs          //root
mmcblk1p7 data            //az01-internal

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By Ultros Wed Jul 10, 2024 8:26 pm
Before assuming all that, try the pc firmware installation method:

hold bank c, browse, and full level all down and press power and the unit should boot into dfu mode. Then you run the installer from the pc, or mac side. (it's fastboot). I surmise you may have not fully completed your update, or it was corrupt.