A-88: Factory Reset May 01, 2023 05:13 Updated Follow Use this procedure to restore the A-88 to its default factory settings: Press FUNCTION. Press the key labelled "FACT RESET." Press the key labelled "ENTER." Related articles A-88: Advanced USB Driver Setting A-88MKII: Factory Reset RD-88, RD-88 EX: Can I use the RD-88/RD-88 EX as a master keyboard? A-88: After installing the driver, I cannot use it when connected to macOS Big Sur (macOS11). WM-1: What type of batteries can I use?