Firmware updates for M1 Macs often target the "BridgeOS," the operating system that runs on the T2 security chip equivalent integrated into the M1. When a user installs an update labeled as a "firmware update," they are essentially updating the code that initializes the hardware before the primary operating system, macOS, even loads. In the case of a version like v203, such an update would likely address sleep/wake functionality, battery management logic, and the handshake between the processor and the solid-state drive. Without these refinements, the hardware would be unable to reach its full potential, leading to inefficiencies in power consumption or peripheral connectivity.
An update in the v203
Unzip the files and copy MstarUpgrade.bin and M1+WW.bin to a FAT32 formatted USB drive. Install: Power on the projector and plug in the USB drive. Confirm the update notification when it appears. m1 firmware update v203 upd