Hi ,

I am trying to enable lte connection with huawei dongle , but I am getting below error log for activat/context. 

Aug 26 11:36:28 raspberrypi3 daemon.info ofonod[147]: Modem: > AT+CGDCONT=1,"IP","airtelgprs.com"\r
Aug 26 11:36:28 raspberrypi3 daemon.info ofonod[147]: Modem: < \r\nOK\r\n
Aug 26 11:36:28 raspberrypi3 daemon.debug ofonod[147]: ../ofono-1.24/drivers/atmodem/gprs-context.c:at_cgdcont_cb() ok 1
Aug 26 11:36:28 raspberrypi3 daemon.info ofonod[147]: Modem: > AT+CGDATA="PPP",1\r
Aug 26 11:36:28 raspberrypi3 daemon.info ofonod[147]: Modem: < \r\nCONNECT 100000000\r\n
Aug 26 11:36:28 raspberrypi3 daemon.debug ofonod[147]: ../ofono-1.24/drivers/atmodem/gprs-context.c:at_cgdata_cb() ok 1
Aug 26 11:36:28 raspberrypi3 daemon.debug ofonod[147]: ../ofono-1.24/drivers/atmodem/gprs-context.c:setup_ppp()
Aug 26 11:36:28 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_generate_event: current state 0:INITIAL
Aug 26 11:36:28 raspberrypi3 daemon.info ofonod[147]: PPP: event: 0 (Up), action: 2, new_state: 2 (CLOSED)
Aug 26 11:36:28 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_generate_event: current state 2:CLOSED
Aug 26 11:36:28 raspberrypi3 daemon.info ofonod[147]: PPP: event: 2 (Open), action: 1026, new_state: 6 (REQSENT)
Aug 26 11:36:28 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_initialize_restart_count: current state 2:CLOSED
Aug 26 11:36:28 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_send_configure_request: current state 2:CLOSED
Aug 26 11:36:28 raspberrypi3 daemon.info ofonod[147]: PPP: ../ofono-1.24/gatchat/gatppp.c:ppp_enter_phase() 1
Aug 26 11:36:29 raspberrypi3 daemon.info ofonod[147]: PCUI: < \r\n^BOOT:1113056,0,0,0,99\r\n
Aug 26 11:36:30 raspberrypi3 daemon.info ofonod[147]: PCUI: < \r\n^RSSI:31\r\n
Aug 26 11:36:30 raspberrypi3 daemon.info ofonod[147]: PCUI: < \r\n^LTERSRP:-76,-6\r\n
Aug 26 11:36:31 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_timeout: current state 6:REQSENT
Aug 26 11:36:31 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_generate_event: current state 6:REQSENT
Aug 26 11:36:31 raspberrypi3 daemon.info ofonod[147]: PPP: event: 4 (TO+), action: 1006, new_state: 6 (REQSENT)
Aug 26 11:36:31 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_send_configure_request: current state 6:REQSENT
Aug 26 11:36:33 raspberrypi3 daemon.info ofonod[147]: PCUI: < \r\n^RSSI:31\r\n
Aug 26 11:36:33 raspberrypi3 daemon.info ofonod[147]: PCUI: < \r\n^LTERSRP:-76,-6\r\n
Aug 26 11:36:34 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_timeout: current state 6:REQSENT
Aug 26 11:36:34 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_generate_event: current state 6:REQSENT
Aug 26 11:36:34 raspberrypi3 daemon.info ofonod[147]: PPP: event: 4 (TO+), action: 1006, new_state: 6 (REQSENT)
Aug 26 11:36:34 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_send_configure_request: current state 6:REQSENT
Aug 26 11:36:36 raspberrypi3 daemon.info ofonod[147]: PCUI: < \r\n^RSSI:31\r\n
Aug 26 11:36:36 raspberrypi3 daemon.info ofonod[147]: PCUI: < \r\n^LTERSRP:-76,-6\r\n
Aug 26 11:36:37 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_timeout: current state 6:REQSENT
Aug 26 11:36:37 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_generate_event: current state 6:REQSENT
Aug 26 11:36:37 raspberrypi3 daemon.info ofonod[147]: PPP: event: 4 (TO+), action: 1006, new_state: 6 (REQSENT)
Aug 26 11:36:37 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_send_configure_request: current state 6:REQSENT
Aug 26 11:36:39 raspberrypi3 daemon.info ofonod[147]: PCUI: < \r\n^RSSI:31\r\n\r\n^LTERSRP:-76,-6\r\n
Aug 26 11:36:40 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_timeout: current state 6:REQSENT
Aug 26 11:36:40 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_generate_event: current state 6:REQSENT
Aug 26 11:36:40 raspberrypi3 daemon.info ofonod[147]: PPP: event: 4 (TO+), action: 1006, new_state: 6 (REQSENT)
Aug 26 11:36:40 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_send_configure_request: current state 6:REQSENT
Aug 26 11:36:42 raspberrypi3 daemon.info ofonod[147]: PCUI: < \r\n^RSSI:31\r\n
Aug 26 11:36:42 raspberrypi3 daemon.info ofonod[147]: PCUI: < \r\n^LTERSRP:-76,-6\r\n
Aug 26 11:36:43 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_timeout: current state 6:REQSENT
Aug 26 11:36:43 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_generate_event: current state 6:REQSENT
Aug 26 11:36:43 raspberrypi3 daemon.info ofonod[147]: PPP: event: 4 (TO+), action: 1006, new_state: 6 (REQSENT)
Aug 26 11:36:43 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_send_configure_request: current state 6:REQSENT
Aug 26 11:36:45 raspberrypi3 daemon.info ofonod[147]: PCUI: < \r\n^RSSI:31\r\n
Aug 26 11:36:45 raspberrypi3 daemon.info ofonod[147]: PCUI: < \r\n^LTERSRP:-76,-6\r\n
Aug 26 11:36:46 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_timeout: current state 6:REQSENT
Aug 26 11:36:46 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_generate_event: current state 6:REQSENT
Aug 26 11:36:46 raspberrypi3 daemon.info ofonod[147]: PPP: event: 4 (TO+), action: 1006, new_state: 6 (REQSENT)
Aug 26 11:36:46 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_send_configure_request: current state 6:REQSENT
Aug 26 11:36:48 raspberrypi3 daemon.info ofonod[147]: PCUI: < \r\n^RSSI:31\r\n
Aug 26 11:36:48 raspberrypi3 daemon.info ofonod[147]: PCUI: < \r\n^LTERSRP:-76,-6\r\n
Aug 26 11:36:49 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_timeout: current state 6:REQSENT
Aug 26 11:36:49 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_generate_event: current state 6:REQSENT
Aug 26 11:36:49 raspberrypi3 daemon.info ofonod[147]: PPP: event: 4 (TO+), action: 1006, new_state: 6 (REQSENT)
Aug 26 11:36:49 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_send_configure_request: current state 6:REQSENT
Aug 26 11:36:51 raspberrypi3 daemon.info ofonod[147]: PCUI: < \r\n^RSSI:31\r\n
Aug 26 11:36:51 raspberrypi3 daemon.info ofonod[147]: PCUI: < \r\n^LTERSRP:-76,-6\r\n
Aug 26 11:36:52 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_timeout: current state 6:REQSENT
Aug 26 11:36:52 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_generate_event: current state 6:REQSENT
Aug 26 11:36:52 raspberrypi3 daemon.info ofonod[147]: PPP: event: 4 (TO+), action: 1006, new_state: 6 (REQSENT)
Aug 26 11:36:52 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_send_configure_request: current state 6:REQSENT
Aug 26 11:36:54 raspberrypi3 daemon.info ofonod[147]: PCUI: < \r\n^RSSI:31\r\n
Aug 26 11:36:54 raspberrypi3 daemon.info ofonod[147]: PCUI: < \r\n^LTERSRP:-76,-9\r\n
Aug 26 11:36:55 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_timeout: current state 6:REQSENT
Aug 26 11:36:55 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_generate_event: current state 6:REQSENT
Aug 26 11:36:55 raspberrypi3 daemon.info ofonod[147]: PPP: event: 4 (TO+), action: 1006, new_state: 6 (REQSENT)
Aug 26 11:36:55 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_send_configure_request: current state 6:REQSENT
Aug 26 11:36:57 raspberrypi3 daemon.info ofonod[147]: PCUI: < \r\n^RSSI:31\r\n
Aug 26 11:36:57 raspberrypi3 daemon.info ofonod[147]: PCUI: < \r\n^LTERSRP:-76,-7\r\n
Aug 26 11:36:58 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_timeout: current state 6:REQSENT
Aug 26 11:36:58 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_generate_event: current state 6:REQSENT
Aug 26 11:36:58 raspberrypi3 daemon.info ofonod[147]: PPP: event: 5 (TO-), action: 803, new_state: 3 (STOPPED)
Aug 26 11:36:58 raspberrypi3 daemon.info ofonod[147]: PPP: lcp: pppcp_this_layer_finished: current state 3:STOPPED
Aug 26 11:36:58 raspberrypi3 daemon.info ofonod[147]: PPP: ../ofono-1.24/gatchat/gatppp.c:ppp_enter_phase() 0
Aug 26 11:36:58 raspberrypi3 daemon.info ofonod[147]: PPP: ../ofono-1.24/gatchat/gatppp.c:ppp_dead()
Aug 26 11:36:58 raspberrypi3 daemon.debug ofonod[147]: ../ofono-1.24/drivers/atmodem/gprs-context.c:ppp_disconnect() Reason: 0
Aug 26 11:36:58 raspberrypi3 daemon.debug ofonod[147]: ../ofono-1.24/src/gprs.c:pri_activate_callback() 0x165b9a8
Aug 26 11:36:58 raspberrypi3 daemon.debug ofonod[147]: ../ofono-1.24/src/gprs.c:pri_activate_callback() Activating context failed with error: Unknown error type