If the application refuses your credentials, it is usually caused by a version conflict or a data entry mistake. Use this checklist to resolve the issue: : If an old version of Go to product viewer dialog for this item.

If the credentials are entered correctly, the software should activate, and you will not be prompted again.

If you already have a functional version of the software installed on an older PC and need to migrate or verify your keys, open the program, click on the Help menu, and select Version Information to view your registered Key ID.

The Brother PS-300B is an essential, specialized Windows utility that allows manufacturing operators to create, edit, and modify geometric stitch patterns for electronic industrial sewing machines. When you first open the software or install a major version upgrade, a validation dialogue box forces you to submit a valid security Key ID and Password combination to unlock the design interface. Where to Find Your Official Key ID and Password

: If you receive an "Invalid key ID or password" error, double-check that you are using the specific codes written on the PS-300B CD case (version 1.0 or newer). ⌨️ Entering Text in Patterns