求最新固件和at说明

物联网模组 LTE-Advanced & 5G 模组
1

[quote=“1971443217, post:1, topic:11595, full:true”]

RM520N-GL

Revision: RM520NGLAAR01A07M4G

OK

869710030002905求最新版本at命令说明和固件

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2

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