The Finnish S10 5G on which we were testing, after the update that enabled 5G in Finland has stopped working with scat. I tried to use my raw writer and the output was empty, so I think no diag messages are sent.
The same problem occurs with S20 5G (family) in Finland, UK and Italy. There is a similar problem also with all the S7 and S7 edges that we've tried, I don't know if it's related to this issue, but such a problem never happened with S6, S8, S9, S10 4G, S10e and other (midrange) exynos devices that we've tested.
We tried to disable 5G in the settings but nothing changed.

Moreover 5G devices show two DMs, DM and DM(2CP), in *#0808#, but it's impossible to enable the second one. I guess the second DM is only for qualcomm devices.

There is no error or warning, so I've nothing else to share