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AT Command no response | Telit Cinterion IoT Developer Community

May 4, 2020 - 6:09am, 922 views

at-command-serial-portHello,  Our GSM Module - EHS6 A400 can't use at-command via USB-serial port. There is no response anything. Before we installed JRC-1.56.54.jad file, it worked but my application not worked. after that we try install JRC-1.56.54.jad file in to module, at-command can't use, there is no response but my laptop still found the list of serial port of modem as the picture, Do you have any suggestion to solve this problem please ?