Open the unit. Look for the chip: (older) or STM32F407 (newer). This determines which firmware you need.
If you’d like, I can:
Sell your USB controller on eBay (they hold value) and switch to an Arduino-based GRBL system – 100% open source, zero cracks, and endless community support. planet cnc usb controller fixed crack free
Some online sources claim to offer a fixed crack free solution for the Planet CNC USB controller. However, these claims are often dubious and may involve: Open the unit
CNC machines involve high-speed movements and precise coordination. Cracked software often lacks the stability and safety features of the official version. A software glitch or "bug" introduced by a crack can lead to unexpected machine movements, potentially damaging expensive spindles, tools, or the machine frame itself. potentially damaging expensive spindles