How to know about hardware id

[edha]

How to know about hardware id of uLCD-43P?.Id hardware must can't be changed, and different each lcd. Thanks.

[ESPsupport]

There is no 'hardware id'.

What were you hoping to do with it?

[edha]

I want to protect 4DG program from the cloning process without permission to another 4DG lcd.

[ESPsupport]

The program that is stored in the Flash display cannot be cloned.

So even if you allow for updating 'off uSD' then the program stored in the flash has the 'power' to use the uSD in such a way that only it can use what is on uSD. (I'm being deliberately unclear here so that you can/will come up with a 'method' that will prevent cloning from the uSD in a unique way)

[edha]

I want to sell the binary code file to my customers. How can I make a binary code only be used in single uLCD-43DT and can't be used by another uLCD-43DT?

[ESPsupport]

As I said above, you put the file on a uSD that has something 'secret' so it can only be 'used once'. The secret bit is read and used by the installer application and/or the actual application depending on how you install/use the application

[edha]

Thank you for the advice