1. The pid cannot be changed across categories;

2. Can only be replaced before activation;

3. Cannot operate across areas;

4. The new PID is the same as the original PID firmware Key (customized firmware new PID must be created by OEM based on the original PID);

5. The function points of the new PID are consistent with the original PID;

6. The firmware IO configuration of the new PID is consistent with the original PID;

7. The new PID and the original PID have reached trial production or mass production status;

8. The original PID in the application voucher is consistent with the PID corresponding to the authorization code;

9. The device before replacement uses sn for code scanning authorization in the production process, and the authorized PID is the same as the original PID;

Note: As long as the new PID has been replaced, it is not allowed to be modified, otherwise it may cause an exception.