求rm520n gl 最新固件和AT手册

物联网模组 LTE-Advanced & 5G 模组
1

Quectel
RM520N-GL
Revision: RM520NGLAAR03A03M4G

OK
<<EOF
AT+QGMR >> /dev/ttyUSB3
AT+QGMR

RM520NGLAAR03A03M4G_18.001.18.001

OK
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2

Hi @zhaoq
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