GPRS status problem

chenbingjy

GPRS status problem [Copy link]

I've been working on GPRS recently, and I'm using the YYW_M203C module. This module has both GPRS and GPS positioning. I sent the command CREG to inquire about the status. According to the manual, the reply +CREG: 1,1 or +CREG: 0,1 is normal. But when I try, it always replies +CREG: 1,2. Is there anyone who has used this module? Please give me a tip, thank you!

mzb2012

2 means the operator is found but the network is not registered. Is your card in poor contact?

chenbingjy

mzb2012 posted on 2018-1-18 20:40 2 means the operator is found but the network is not registered. Is your card in poor contact?

Let me take a look

chunyang

The OP did not read the manual carefully. You should first clarify the meaning of the information. If it is as mentioned on the second floor, in addition to the SIM card causing network registration problems, you should also pay attention to check whether the module is working properly, whether the antenna is correctly connected, and whether the power supply meets the requirements.

chenbingjy

chunyang posted on 2018-1-19 18:13 The OP did not read the manual carefully. First, clarify the meaning of the information. If it is as the second floor said, in addition to the SIM card causing network registration problems, also pay attention to check whether the module is correct...

The great god said