GSM Module Error: No Network ! - Printable Version +- Comfort Automation/ Security System Forums (https://www.comfortforums.com) +-- Forum: Products (https://www.comfortforums.com/forum-3.html) +--- Forum: GSM Module (https://www.comfortforums.com/forum-48.html) +--- Thread: GSM Module Error: No Network ! (/thread-218.html)

- namnp - 09-26-2006 Hello, I have two GSM modules and one of them seemed to be faulty: the board\' D4 ERR led  (SGM module, 5.98) always ON since first switch on?. What can I need to check ? The other GSM module is working fine. Thanks - slychiu - 09-27-2006 Could it be a nework error? Have you tried exchanging the SIM cards between the two modules? Also please check the antenna connection, and the ID settings - leonchue - 09-27-2006 Some SIM cards are code-protected (ie. need to key in password to use them).  You need to disable the feature if that is the case.  - namnp - 09-27-2006 It\'s alright now. I have no answers why it\' s OK now. Actually I did not change any on board ID, sim card, antenna... just after several full downloads for other responses\' changes. Thanks