CLI in zubax gnss?

Hello,I have encountered a problem when using zubax gnss. In the serial command line interface, enter “help” with only four available commands “reboot, zubax_id, wait, download” are output.I suspect that I only entered the BootLoader mode and did not enter the firmware. what should I do? Thank you!
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Please power-cycle the device. If the firmware image is valid, it will be launched automatically.

If that did not happen, please upload this binary image: https://files.zubax.com/products/com.zubax.gnss/com.zubax.gnss-2.2-4.1.62c8d4a.application.bin

Upload instructions are provided here:

(I have removed all of the duplicate posts with the same question you submitted. Please do not cross-post in the future.)