Hi all, Forum Experts,
Describing my issues below, wondering if any one has experienced this? or have any views/opinoins/thoughts/etc?
We are using Q2687rd (aka Refreshed) module (with generic R7.43 firmware) within our ME. At certain locations in USA, this GPRS module cannot do a 1st time GSM registration. While a Siemens (currently Cinterion) MC56 at the same location, and with the same “fresh” SIM card, has no problems in registering in about 15secs.
Signal strength is good - more then 20 rssi on average (one example: +CSQ:.21,99) for both Q2687R and MC56. SIM card is AT&T.
My layperson’s guess is that Q2687R is trying to find a PLMN that is not there and can not pull off it. While for some reasons, MC56 has no such issues.
I will try to provide more info/data if its possible. There’s no way to get a more detail log from my side. :-/
Thanks in advance.