Security key failure

Hi

I got Wyse Z90S with different firmware version 9.02 and 9.03

The version 9.03 is much better then I took the image from this device and try to push into 9.02 version wyse device without successfully. It keep saying Security Key Failure.

Both of the Wyse device got the same hardware

I have tried both USB Iamaging and WDM with the latest version and got the same thing

I have tried pull image from another 9.03 but still got the same error

Can you guys please suggest the solution