Connect only to 5G SA

Hi there, I am wanting to connect only to 5G SA and not 5G NSA. Here are the commands I am using:

AT+QNWPREFCFG= “mode_pref”,NR5G

AT+QNWPREFCFG=“nr5g_band”
+QNWPREFCFG: “nr5g_band”,1:2:3:5:7:8:12:20:25:28:38:40:41:48:66:71:77:78:79

AT+QNWPREFCFG=“nr5g_disable_mode”,2

AT+QENG=“servingcell”
+QENG: “servingcell”,“LIMSRV”,“NR5G-SA”,“FDD”,234,20,03214412F,521,-,424130,1,1,-123,-18,-6,0,13

This is a NSA cell - what else do I need to configure to only connect to 5G SA?

Are you sure your network operator (Three UK?) supports SA mode? Some providers only do NSA, or offer SA only on a subset of their towers. Your QENV servingcell output indicates the module is trying to use SA on the n1 band, but not able to successfully connect there (“LIMSRV” - I see the same when trying to force SA connections to certain bands).

I think Three uses n1, n28, and n78, so you could try temporarily reducing your nr5g_band list to just one of these at a time, though they aren’t deployed everywhere, and n78 tends to have very short range. Three likes to do DSS / Dynamic Spectrum Sharing also, where 4G and 5G intermingle on the same bands, which may also be incompatible with SA mode.