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!

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:

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.)