I have some mistic problem width q2687 and simcard . I use the 2687 for a long time and i look
a mistic problem .
Some times when the module start not communicate widt the sim card . In these fact the simcard
from the open at not able to initilized .
My development have a periodikal function the module weakup and start connection abaout 20 time
on a day . And from the 20 time abaout 3 - 4 time the module not found the sim card .
But not send any error .
Any one have same problem ever ?