Copy both MstarUpgrade.bin and M1+WW.bin (or M1WW.bin ) directly to the of the drive. Do not put them in a folder. 2. Run the Update Power on the projector. Plug the USB drive into the USB-A port.

Improved handshaking with HDMI sources and USB-C devices.

Follow these sequential installation steps to flash the v2.03 firmware using a USB flash drive:

Maintaining up-to-date firmware ensures that your portable projector operates smoothly, maintains reliable wireless connections, and avoids common software-related system freezes. Key Requirements for the Installation

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.

Unzip the downloaded folder and copy the two bin files— MstarUpgrade.bin and M1+WW.bin —directly onto the root of your USB drive. Step-by-Step Installation: M1 Firmware Update v203

According to Insta360’s documentation, when running V203 firmware, the matters. To avoid conflicts, follow this sequence precisely:

Resolved issues with "MstarUpgrade.bin" recognition during previous update attempts.

Managing the firmware on your M1 Mac is an essential but passive process. You should always aim to keep macOS up-to-date, as that automatically delivers the latest firmware. However, the incident with macOS 26.4.1 serves as a powerful reminder that updates can go wrong. The best strategy is to .

The ViewSonic M1+ Firmware Update v2.03 improves system stability for the M1+ Ultra-Portable LED Projector, requiring a manual, FAT32-formatted USB drive to copy binary files. Users must connect the drive to the powered-on projector, confirm the update prompt, and ensure power is not interrupted during the automatic installation process. For the full update instructions, visit ViewSonic . How to Upgrade the M1+ Firmware? - Projector - ViewSonic