How to restore the device Hw v2?

I have the nRF Hw v2, and it seems like I did something wrong with a Fw:

nRF is recognizable by a computer as the COM10/11/12 device:

Most of the nRF Connect Desktop applications could recognize the device, but, unfortunately, they can not connect to it, and return an error:

or return nothing:

t looks like the Fw Application is loaded on the nRF and it is booted properly, while the modem does not respond.

Is there any Fw for the modem?

I saw some Segger software tool, and it offers to restore some image from time to time. Could it be connected to this problem?

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