Omron's CX-One software is a comprehensive software suite used for designing, configuring, and programming Omron devices, including HMIs. If you have access to the CX-One software and the HMI's project file, you can recover or reset the password.
Omron NA HMIs running Sysmac Studio allow password reset using the maintenance SD card slot: omron hmi password crack work
This requires prior setup of the maintenance function when the HMI was first configured. Not enabled by default on all units. Omron's CX-One software is a comprehensive software suite
If you legitimately own or are authorized to service an Omron HMI (e.g., NA, NB, NS, or NV series) and have lost the password, here are the proper channels: This requires prior setup of the maintenance function