If the current machine system version is greater than or equal to version 4.0.9.3, you can directly use the firmware version 4.0.9.8 for ota upgrade. If the current machine system version is lower than version 4.0.9.3, please upgrade the machine to version 4.0.9.3 first, and then upgrade it to version 4.0.9.8. For subsequent remote upgrades to users, when the recognized machine version is lower than 4.0.9.3, the cloud will first send the firmware version 4.0.9.3 to the user for the first upgrade, and then send version 4.0.9.8 to the user for the second upgrade.
Note: It is a normal phenomenon that the upgrade process of version 4.0.9.3 is relatively slow. All ota firmware upgrades after this version will carry the fpga upgrade package (version 4.0.9.3 itself does not carry the fpga upgrade package, so some new functions cannot be used normally). After upgrading from version 4.0.9.3 to version 4.0.9.8, the newly added RERF file printing function and the heating function during printing can be used normally. The original fpga upgrade method and the old RERF file printing function are still retained.
Two USB flash drives (USB flash Drive A and USB flash Drive B)
Upgrade the file M7_Max-ota_all-4.0.9.3-20250208-a75648ff9.acfimg
Upgrade file M7_Max-ota_system-4.0.9.8-20250214-6fd90a572.acfimg
Label and comment 4.0.9.3 on USB flash drive A and 4.0.9.8 on USB flash drive B.
2. Copy the upgrade file M7_Max-ota_all-4.0.9.3-20250208-a75648ff9.acfimg from the computer to USB drive A.
3. Copy the upgrade file M7_Max-ota_system-4.0.9.8-20250214-6fd90a572.acfimg from the computer to USB flash drive B.
4. Insert USB Flash Drive A into the M7 Max machine. After the machine recognizes the insertion of the USB flash drive, click Local Upgrade.
5. After the machine is upgraded, it will automatically restart and check whether the machine system is version 4.0.9.3.
6. Then unplug USB drive A, plug in USB drive B, and repeat the local upgrade operation. After the machine is completed, it will automatically restart. Check whether the machine system is version 4.0.9.8 and the fpga version is 50.