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Module sim7670C cannot send messages, cannot call, nor receive messages or calls! Ple
#5
(01-05-2024, 03:40 AM)admin Wrote: check this sim card in your mobile phone.

I have tested all three sims and they all work fine on the mobile phone I am using. But when tested on SIM 7670C as mentioned above, one of them failed to work with messages and phone calls. The remaining 2 SIM cards respond OK to AT commands but they also have errors, one shows an error message: SIM not inserted.
AT+CPIN?
+CME ERROR: SIM not inserted
And the third sim says busy.
AT+CPIN?
+CME ERROR: SIM busy
I have tested a few sim 7670C modules but all have the same problem. Really don't understand what's going on?
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RE: Module sim7670C cannot send messages, cannot call, nor receive messages or calls! Ple - by Tchip - 01-05-2024, 01:37 PM

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