求一下最新的固件和更新教程,邮箱:7023439@gmail.com
/ # cat /etc/quectel-project-version
Project Name: RM520NCN_VA
Project Rev : RM520NCNAAR03A03M4G_01.001
Branch Name: SDX6X
Custom Name: STD
Package Time: 2023-05-05,12:21
AT+QGMR
RM520NCNAAR03A03M4G_01.001.01.001
OK
ATI
Quectel
RM520N-CN
Revision: RM520NCNAAR03A03M4G
OK