download old hmi screen

hello, I have a problem with a project in wincc felxible sp5, I have a backup of a project that contains a TP270 10'' hmi display, and the hmi display mounted is a MP377 12'', I am told that there is a way to transfer the project from wincc to the mp377 display without the need to change the reference of the display in the project, but when transferring I get a message of inconsistency between project and target system.

How can I download the project to the screen without changing the hardware of the screen? thanks for your help.