kad_911
Member level 2
Hello,
I'm using a Huawei M323 GSM/GPRS Module to send some data to a web server. The data sending part is working.
The problem is, the module doesnt detect all the SIM CARDs that I insert. It only detects a very few cards that are rare to find.
I checked with the service providers, but cant find anything special or different about these cards. Can anyone help me? Any Idea why this is happening?
The modules datasheet says that it automatically detects the SIM card operating voltage.
The service that works is called Hutchison Telecom Sri Lanka.
Anything else in my country doesn't work.
Please Help...
thanx,
I'm using a Huawei M323 GSM/GPRS Module to send some data to a web server. The data sending part is working.
The problem is, the module doesnt detect all the SIM CARDs that I insert. It only detects a very few cards that are rare to find.
I checked with the service providers, but cant find anything special or different about these cards. Can anyone help me? Any Idea why this is happening?
The modules datasheet says that it automatically detects the SIM card operating voltage.
The service that works is called Hutchison Telecom Sri Lanka.
Anything else in my country doesn't work.
Please Help...
thanx,
