Can't connect to a network

Cellular Modules Quectel EC25 LTE Module
1

Hello all,

I am using the Sixfab core with the Quectel EC25 module.
I am using a SIM card, however, i can’t connect to any network or even scan any network:
at+csq
+CSQ: 99,99

OK
at+cops?
+COPS: 1

OK
at+cops=?
+CME ERROR: 3

Note: i don’t have an external antenna connected, is it needed?
Thank you,
Jelson G.

2

Hi,

Make sure your antenna is connected properly.

3

So, it will not work without the antenna?

4

Yes, it won’t work without an antenna.

5

Oh thank you so much, i did not buy the external Antenna initially, already ordered it!

1 Like
6

Hello Ensar,

I already have my antenna connected but the module still shows +CSQ: 99,99, and won’t do anything.

Any tip?