Sierra Wireless Forum
Troubleshooting CME Error 921, Error due to invalid state of bearer connection
IoT Modules
HL78
jyijyi
May 15, 2024, 4:15pm
21
you can check FW version by ATI3
anton
May 16, 2024, 7:30am
22
Here are the firmware details
ATI3
HL7810.5.5.14.0
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