After reboot, double-click the SmartCarve 43 desktop icon.
Enter your best guess (try 608 first). If it accepts the password, you will see the parameter table. Do not change anything yet – just click "Read" to import your machine’s current config. Then click "OK." smartcarve 43 password install
If it rejects the password, the button will gray out for 5 seconds. Close the box and try again with a different password. After reboot, double-click the SmartCarve 43 desktop icon
LightBurn (paid, $40-$80) does not use a manufacturer password for basic machine control. It connects directly to the Ruida controller using a standard protocol. You can install LightBurn in 5 minutes without any password prompts. However, you will lose access to some proprietary SmartCarve features like camera alignment. Enter your best guess (try 608 first)
If you are setting up a laser engraver (like a generic Chinese CO2 laser) running the Leetro controller, you are likely stuck trying to get SmartCarve 4.3 up and running. The most common hurdle is the "Import Password" prompt.
Here is the step-by-step to get it installed and configured.
If “SmartCarve 43” is a real device/software you own and you are stuck on a password install step, I can help in two ways: