I am using Q651 firmware on module Q2501.
after a lot of development I have a new issue, my operator doesn’t deliver me anymore the good old 64kbyte SIM cards.
Now I have 72 kbyte SIMs and I have an awful latency in receiving the +WIND:4 synchronization message.
It takes 30 secs to receive the +WIND: 4 message instead of 5 secs as usually after the +CREG: 1 indication.
Does anyone have experience in this problem of acceptance between SIM chips and Wavecom Firmware?
Thanks in advance,