Hello!
Unfortunately, the PSN or Product Serial Number is an important requirement for the activation and use of the Cuyi Cutter Plotter. This is because the PSN is used to register and activate the software associated with the cutter plotter, as well as to access technical support and updates.
If you do not have the PSN, it is recommended that you contact the seller or the manufacturer to obtain it. Alternatively, you can try to search for a PSN generator or ***** online, but be warned that this may be îllégâl and can potentially harm your computer or the cutter plotter itself.