Dear All,
Q2687 module is working fine, when there is a network and signal is good, but when the network is weak/No network , modem network status led is continuously ON even when the network signal strength is back, Hence Not able to send “or” receive data through GPRS /SMS. If we reset it starts working. (Detects network :LED : ON/OFF).
Hi Awneil
Thanks for the reply, No It is not during emergency call mode, It was during periodic Data transfer mode, Our code inside the module is working fine even during the no network/ Weak signal, But Flash LED is continuously ON ( Module(Q2687) is not recovering automatically even after getting good network coverage).
Q2687 module “ON”, Removed Antenna , checked signal strength (AT+CSQ) it was 7,0(Signal strength is weak) …When Antenna connected checked signal strength (AT+CSQ) it was 22,0(Signal strength is Good) .
Obviously, the signal strength will be lower with the aerial not fitted than when it is fitted!
But you didn’t answer the question: How do you know that it’s not in “Emergency Calls Only” mode with the “wrong” network
Note that the response to AT+CSQ gives the signal strength of the current serving network- so just checking AT+CSQ is not sufficient - you also need to check AT+COPS?