We tested M1 Firmware v2.03 on a representative reference device: an M1-based USB4/TBT4 external SSD enclosure with a Gen4 NVMe drive.
If you are referring to a different M1 device, here are related version histories: Canon EOS M m1 firmware update v2.03
Some users have reported that the v2.03 update has: M1 Firmware Update v2
We're excited to announce that a new firmware update for the M1 is now available! Version 2.03 brings several improvements and enhancements to your device. v2: A major architectural change from v1
Even with careful preparation, problems can arise. Here are the top three issues reported with and their solutions.