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by ikillbombs
Thu Feb 04, 2021 9:07 pm
Forum: HATs and other add-ons
Topic: Waveshare SIM7600X 4G HAT running just for seconds
Replies: 4
Views: 6175

Re: Waveshare SIM7600X 4G HAT running just for seconds

Hi, I had the same issue with this board. The problem is that the cables next to being shielded, got to have a ferrite suppressor. In my tests I had issues when 4G is connected and a call comes in. This resulted in a EMI error in journalctl. This was not the issue when I used 2G. The supplied cable ...
by ikillbombs
Mon Aug 26, 2019 7:43 pm
Forum: Networking and servers
Topic: 4G Hat
Replies: 135
Views: 134373

Re: 4G Hat

Hi, I have an issue regarding using the established internet connection that is described before. I've used the qmcli and have established an internet connection. After that I'm using /dev/ttyUSB2 To receive calls and use https://github.com/wilsonwang371/sim-access to communicate. Sometimes it compl...

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