No Connection to Carrier from Pinephone 3G Model
#3
You could try an alternate antenna - it shouldn't be too hard to track down a 4G antenna with the right connector.

As far as the modem goes, you're pretty much limited to what error reporting it might provide. You would have to check the AT command manual to see what's documented. I'm also not sure what ModemManager or oFono do with any errors reported - more docs or code to read. You could disable ModemManager or oFono and watch what happens with a serial terminal instead, in case they're silently dropping error messages.

Another possibility is a change in local radio infrastructure - the companies change their equipment from time to time, and failures do occur. Unless you kept a record of the details from when it was working before this will be a hard one to rule out.
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RE: No Connection to Carrier from Pinephone 3G Model - by wibble - 10-17-2021, 06:29 AM

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