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 a7v7 Tue Dec 23, 2025 6:00 am
Hey all,

As part of an issue I was having, I thought the best solution was to connect to the serial console. To do this I used a USB to serial interface (3.3v) and worked out what pins were GND, Tx and Rx. Once I had that worked out, I booted the system and recorded the boot. After a few moments it came to a login prompt.


Welcome to Buildroot
mpc-one-mk2 login:

mpc-one-mk2 login: root

Password:
Login incorrect
mpc-one-mk2 login: root
Password:
Login incorrect
mpc-one-mk2 login:


The serial port was just as noted in https://github.com/TheKikGen/MPC-LiveXplore/wiki although there was no power on pin 1.

Everything I read said the login would be 'root' with no password or 'root' with 'root' as the password. Neither of those worked. Does anyone know the password for MPC One+ 'root' login?

ACV
User avatar
By bitermc Tue Dec 23, 2025 7:54 am
It's root without password on SSH (it was the last time I checked, but that was 2.x).

Maybe they have disabled console login on newer images.
By a7v7 Tue Dec 23, 2025 5:51 pm
bitermc wrote:It's root without password on SSH (it was the last time I checked, but that was 2.x).

Maybe they have disabled console login on newer images.


I tried that a few times, just to be sure. I was hoping that would be it too. Alas, no dice.