DEP-3, DEP-5: Checking the ROM Version May 24, 2023 05:54 Updated Follow The following procedure can be used to check the ROM version: 1) Hold down NUMBER and VALUE while powering up. Related articles DEP-3, DEP-5: Editor/Librarian Software DEP-3, DEP-5: Initializing the DEP-3/5 and Restoring the Factory Settings GR-33: Initializing - Restoring the Factory Settings