rem replied at 2017-6-23 21:30
Have you tried it with OrangePi 2G-IOT ? My board doesn't seem to recognise the SIM card on Android ...
I have test this code on OrangePi 2G-IOT Android.
And, if SIM doesn't dectect, please check frequency rage of SIM.
This is frequency rage that OrangePi 2G-IOT supports:
Sorry for really late response but I didn't manage to make it work, couldn't change the IMEI so it would register to network. I abandoned development on this board and used something else instead. Now i"m giving it another chance. So i"m asking again: how cand I change the IMEI on Android Nand version so that i can use GSM functionality ?