User's Manual

USR-G786-G User Manual Technical Support: h.usriot.com
Jinan USR IOT Technology Limited www.usriot.com
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6.7.2.Remote Upgrade
G786-G queries by polling, request the server once every 30 minutes by default to get whether there is an
upgrade demand. If the upgrade is needed, the firmware data will be downloaded from the server for the
upgrade; if not, the system will sleep and wait for the next round.The polling time of Fota upgrade can be set
through AT+FOTATIME” with a range of 10~65535s. Set to 0 to close the upgrade request.
7. AT Command Set
7.1. AT Command Examples
When the device works in network transparent mode, can switch to "AT command mode" by sending
time-specific data by serial port. When the operation is completed in "AT command mode", send specific
commands to return to the previous working mode.