Lib fails to connect on MKR1400

[fabltd]

Describe the bug

Testing on MKR 1400 fails:

Starting GSMScanNetworks on SAMD MKRGSM1400
GSM_Generic v1.4.0
GSM networks scanner
[GSM] begin: UART baud = 115200
AT+CFUN=16
[GSM] begin: reset error

Steps to Reproduce

Using the default network scanner with MKRGSM works.

Using the default network scanner with GSM_Generic fails.

Expected behavior

Connection to module and GSM networks reported.

Information

Please ensure to specify the following:

• Arduino IDE version (e.g. 1.8.13) or Platform.io version

Platform IO 5.1.1 - 3.3.4

SAMD21 - MKR 1400

[khoih-prog]

Thanks for your interest in the library, which is modified and written mostly for other boards besides MKRGSM 1400 / SARA U201

Can you try the original MKRGSM library and with Arduino IDE to see if it's working OK or not, to be sure that the issue is not related to board hardware failure, SIM, network, power supply, etc ?

Only if everything is OK, the move on gradually to PIO, etc. to know which is the culprit.

I also can't help any further as I don't have the same MKRGSM 1400 / SARA U201 to test.

Anyway, I'll close this issue and won't reopen until you have more info to prove this is the bug of this library.

Good Luck,