Hi Homam, On 02/06/2014 11:20 AM, Homam Dabis wrote: > I don't think it is anything to do with the APN as I can connect with > the network-manager with out disconnecting the modem or replacing the sim. > > That really doesn't mean anything. ofonod[18701]: Modem: > AT+CGDCONT=1,"IP","3ireland.ie"\r > Is the APN correct? ofonod[18701]: Modem: < \r\nOK\r\n > ofonod[18701]: drivers/atmodem/gprs-context.c:at_cgdcont_cb() ok 1 > ofonod[18701]: Modem: > AT+CGDATA="PPP",1\r > ofonod[18701]: Modem: < \r\n+CME ERROR: 50\r\n > ofonod[18701]: drivers/atmodem/gprs-context.c:at_cgdata_cb() ok 0 > ofonod[18701]: Unable to enter data state > ofonod[18701]: src/gprs.c:pri_activate_callback() 0x22f5900 > ofonod[18701]: src/gprs.c:pri_activate_callback() Activating context > failed with error: Incorrect parameters > If the APN is correct, as a quick hack try changing: gc = ofono_gprs_context_create(modem, 0, "atmodem", data->modem); in plugins/huawei.c huawei_post_sim() to gc = ofono_gprs_context_create(modem, OFONO_VENDOR_SIMCOM_SIM900, "atmodem", data->modem); Regards, -Denis