This firmware enables root SSH access for the Nebula Pad and includes a script to download the helper tool. It is otherwise identical to the official releases.
username: root
password: creality
Do not change the password, as it will break your Nebula Pad. If you want a custom password, make your own rooted firmware with the customization script.
Warning
Use of modified firmware may cause damage to your device. Using the access given by the modified firmware may place the device in a condition where it may not work. Use at your own risk.