alzhao
94
@Guest, from what I understand this should not be the problem of SIM connection.
I have tried two SIM cards here, one 3G and one 4G and I tried both EC20 and UC20.
The 3G SIM card works good with EC20 and UC20.
But the 4G SIM card only works with EC20 (or UC20) in openwrt 1407 in umts mode.
I haven’t sort of the problem but this should be a driver problem. I will buy more SIM card and try. Next week engineers will come back from New Year holiday and hopefully I will get more docs.