I wonder if anyone can help me with band locking on my RM520N-GL. I am using the latest RM520NGLAAR03A03M4G firmware. Band locking doesn’t seem to work for either 4G or 5G.
For example you can see I have 5G bands 28 and 78 which are available. However I cannot seem to lock to them.
AT+QSCAN=2,1
+QSCAN: “NR5G”,234,10,152690,321,-,-,-,0,00D7F69CE,-,52,28,18,6,-
+QSCAN: “NR5G”,234,30,156510,918,-,-,-,0,1F2154006,-,52,28,13,6,-
+QSCAN: “NR5G”,234,20,641376,25,-,-,-,1,031DDC066,-,273,78,200,12,-
+QSCAN: “NR5G”,234,10,651360,360,-,-,-,1,00AEF7586,-,106,78,32,8,-
OK
AT+QNWPREFCFG=“nr5g_band”,78
OK
AT+QENG=“servingcell”
+QENG: “servingcell”,“LIMSRV”,“NR5G-SA”,“FDD”,234,20,03214412F,521,-,424130,1,1,-122,-15,-2,0,14
OK
AT+QENG=“servingcell”
+QENG: “servingcell”,“LIMSRV”,“NR5G-SA”,“FDD”,234,20,03214412F,521,-,424130,1,1,-123,-16,-4,0,13
OK
AT+QNWPREFCFG=“nr5g_band”,28
OK
AT+QENG=“servingcell”
+QENG: “servingcell”,“LIMSRV”,“NR5G-SA”,“FDD”,234,20,03214412F,521,-,424130,1,1,-125,-16,-5,0,12
OK
You can see the serving cell just stays on 5G band 1. Any suggestions on how to fix this?
Same for LTE. I cannot lock to the desired band (for example B28):
AT+QNWPREFCFG= “mode_pref”,LTE
OK
AT+QENG=“servingcell”
+QENG: “servingcell”,“LIMSRV”,“LTE”,“FDD”,234,30,681802,219,1617,3,5,5,55E7,-96,-9,-67,14,0,-,31
OK
AT+QNWPREFCFG=“lte_band”,28
OK
AT+QENG=“servingcell”
+QENG: “servingcell”,“LIMSRV”,“LTE”,“FDD”,234,30,681802,219,1617,3,5,5,55E7,-96,-13,-63,10,0,-,31
OK