Login credentials for iMX8M

[IMX8MNJ]

Once I use putty to connect to the board using the following serial settings (115200, N81) , what username/password I use to login ?

imx8mpevk login: [ 33.762487] can1-stby: disabling
[ 33.765723] can2-stby: disabling
[ 33.768974] VSD_3V3: disabling
Password:

Login incorrect
imx8mpevk login:
L
NXP i.MX Release Distro 5.4-zeus imx8mpevk ttymxc1

imx8mpevk login:

[edwardtyrrell]

A default build should be 'root' and no password option given.

imx8mm-lpddr4-evk login: root