BORON LTE is connected but could not send message

Hello all,

I just started a project using BORON LTE in Korea.
For this project, I use SIM card from HOLOGRAM and was already activated and successfully connected to a carrier.
For initial setup, I followed these instructions

I first uploaded my modified 3rdPartySIM.cpp file to the device and check the led comes on.

Then I uploaded tinker via usb.

RGB led on the device shows fast blink green then glowing blue which I guess it is successfully connected to the internet.
Then I uploaded simple blinking led example which is here.
https://docs.particle.io/tutorials/hardware-projects/hardware-examples/

Below is the code I uploaded to the device.
It simply blinks an led every 500ms until it gets “off” message from Particle.io
I compiled targeted for boron with deviceOS@2.2.0

const pin_t MY_LED = D7;
SYSTEM_THREAD(ENABLED);
bool blinkOn = true;

int ledToggle(String command)
{
    if (command.equals("on")) {
      blinkOn = true;
      return 1;
    } else if (command.equals("off")) {
        blinkOn = false;
        return 0;
    } else {
        return -1;
    }
}
// setup() runs once, when the device is first turned on.
void setup() {
  // Put initialization like pinMode and begin functions here.
  pinMode(MY_LED, OUTPUT);
  Particle.function("led", ledToggle);
}

// loop() runs over and over again, as quickly as it can execute.
void loop() {
  // The core of your code will likely live here.
  if(blinkOn) {
    digitalWrite(MY_LED, HIGH);
    delay(500);
    digitalWrite(MY_LED, LOW);
    delay(500);
  }
}

Console shows connectivity immediately after the led turns glowing blue however when I send “on” or “off” via “led” message, it doesn’t respond.
It only worked for the first upload only.

Health check is not working either.

What is wrong with the setup? Is this simply an issue with carrier not allowing these kind of traffic?
I also checked the coverage for Hologram sim in Korea as below

Any suggestions would be greatly appreciated.

Kyu

Hi,

Please retrieve the Cloud Debug logs and paste back here.

Cloud debug will give me a lot of insight into the state the device thinks it is in - be it an issue with the network, a system or application firmware issue, a problem with the network coprocessor on the device, etc…

As you are aware, there are 2 ways to retrieve Cloud Debug logs:

  1. If you are using Chrome, Edge or Opera, you can try this convenient browser based retrieval (https://docs.particle.io/cloud-debug/). You can flash Device OS (including bootloader and soft device) and the cloud debug firmware right from your browser with no additional software required. Once generated, you can view the Cloud Debug logs right on the web page, with the options to copy to clipboard or download it as a file.

  2. Alternatively, you can download and install Cloud Debug (link) onto the device? Output the logs with particle serial monitor --follow in the Terminal of your choice (Mac - Terminal, Windows - cmd.exe, etc…) after installing the Particle CLI.

Please note the de-installation instructions contained within this link.

Please send me about ~10 minutes or so of logs produced by the device while it’s having trouble connecting with the Cloud.

Thank you for your reply.
Here is the debug log I downloaded from the web-tool.

Connected to USB serial
e[999;999He[6n> 0000015289 [app] INFO: Starting Tests!
0000015289 [app] INFO: Platform: Boron
0000015289 [app] INFO: Binary compiled for: 2.1.0
0000015290 [app] INFO: Cloud Debug Release 2.1.4
0000015290 [app] INFO: System version: 2.1.0
0000015291 [app] INFO: Device ID: e00fce6########20c2acca
0000015291 [app] INFO: Power source: USB Host
0000015292 [app] INFO: Battery state: disconnected, SoC: -1.00
0000015292 [app] INFO: This device could have Ethernet (is 3rd generation)
0000015294 [app] INFO: FEATURE_ETHERNET_DETECTION not enabled, so Ethernet will not be used (even i
0000023302 [app] INFO: deviceID: e00fce###########
0000023303 [app] INFO: PMIC inputVoltageLimit: 3880 mV
0000023304 [app] INFO: PMIC inputCurrentLimit: 500 mA
0000023305 [app] INFO: PMIC minimumSystemVoltage: 3500 mV
0000023306 [app] INFO: PMIC chargeCurrentValue: 896 mA
0000023307 [app] INFO: PMIC chargeVoltageValue: 4112 mV
0000023307 [app] INFO: modem is not yet responding
0000023311 [system.nm] INFO: State changed: DISABLED -> IFACE_DOWN
0000023312 [system.nm] INFO: State changed: IFACE_DOWN -> IFACE_REQUEST_UP
0000023313 [net.pppncp] TRACE: PPP netif event from queue: 1
0000023313 [ncp.client] TRACE: Modem already on
0000023314 [ncp.client] TRACE: Setting UART voltage translator state 1
0000023314 [system.nm] INFO: State changed: IFACE_REQUEST_UP -> IFACE_UP
0000023323 [app] INFO: Still trying to connect to cellular 00:00
0000023324 [app] INFO: Power source: USB Host
0000023324 [app] INFO: Battery state: disconnected, SoC: -1.00
0000023413 [ncp.client] TRACE: Setting UART voltage translator state 0
0000023513 [ncp.client] TRACE: Setting UART voltage translator state 1
0000023514 [ncp.client] TRACE: Muxer is not currently running
0000023514 [ncp.client] TRACE: Initialized muxer @ 460800 baudrate
0000023515 [gsm0710muxer] INFO: Starting GSM07.10 muxer
0000023515 [gsm0710muxer] INFO: GSM07.10 muxer thread started
0000023815 [gsm0710muxer] INFO: Stopping GSM07.10 muxer
0000023816 [gsm0710muxer] INFO: Gracefully stopping GSM07.10 muxer
0000023816 [gsm0710muxer] INFO: Closing all muxed channels
0000023816 [gsm0710muxer] INFO: Muxed channel 1 already closed
0000023817 [gsm0710muxer] INFO: Muxed channel 2 already closed
0000023817 [gsm0710muxer] INFO: Muxed channel 3 already closed
0000023817 [gsm0710muxer] INFO: Muxed channel 4 already closed
0000024468 [gsm0710muxer] INFO: Sending CLD (multiplexer close down)
0000025369 [gsm0710muxer] INFO: Received response to CLD or timed out, exiting multiplexed mode
0000025419 [gsm0710muxer] INFO: GSM07.10 muxer thread exiting
0000025420 [gsm0710muxer] INFO: GSM07.10 muxer stopped
0000025420 [ncp.client] TRACE: Initialized muxer @ 115200 baudrate
0000025420 [gsm0710muxer] INFO: Starting GSM07.10 muxer
0000025421 [gsm0710muxer] INFO: GSM07.10 muxer thread started
0000025720 [gsm0710muxer] INFO: Stopping GSM07.10 muxer
0000025721 [gsm0710muxer] INFO: Gracefully stopping GSM07.10 muxer
0000025721 [gsm0710muxer] INFO: Closing all muxed channels
0000025721 [gsm0710muxer] INFO: Muxed channel 1 already closed
0000025722 [gsm0710muxer] INFO: Muxed channel 2 already closed
0000025722 [gsm0710muxer] INFO: Muxed channel 3 already closed
0000025722 [gsm0710muxer] INFO: Muxed channel 4 already closed
0000026373 [gsm0710muxer] INFO: Sending CLD (multiplexer close down)
0000027274 [gsm0710muxer] INFO: Received response to CLD or timed out, exiting multiplexed mode
0000027324 [gsm0710muxer] INFO: GSM07.10 muxer thread exiting
0000027325 [gsm0710muxer] INFO: GSM07.10 muxer stopped
0000027326 [ncp.at] TRACE: > AT
0000027329 [ncp.at] TRACE: < OK
0000027329 [ncp.client] TRACE: NCP ready to accept AT commands
0000027329 [ncp.at] TRACE: > ATI9
0000027333 [ncp.at] TRACE: < OK
0000027333 [ncp.client] TRACE: App firmware: 204
0000027333 [ncp.at] TRACE: > AT+UGPIOC?
0000027336 [ncp.at] TRACE: < +UGPIOC:
0000027339 [ncp.at] TRACE: < OK
0000027340 [ncp.at] TRACE: > AT+UGPIOR=23
0000027345 [ncp.at] TRACE: < +UGPIOR: 23,0
0000027346 [ncp.at] TRACE: < OK
0000027346 [ncp.client] INFO: Using external Nano SIM card
0000027347 [ncp.at] TRACE: > AT+CPIN?
0000027352 [ncp.at] TRACE: < +CPIN: READY
0000027353 [ncp.at] TRACE: < OK
0000027353 [ncp.at] TRACE: > AT+CCID
0000027360 [ncp.at] TRACE: < +CCID: 8944500######481376
0000027360 [ncp.at] TRACE: < OK
0000027361 [ncp.at] TRACE: > AT+CCID
0000027363 [ncp.at] TRACE: < +CCID: 8944500#######481376
0000027364 [ncp.at] TRACE: < OK
0000027364 [ncp.at] TRACE: > AT+CIMI
0000027367 [ncp.at] TRACE: < OK
0000027367 [ncp.at] TRACE: > AT+UMNOPROF?
0000027373 [ncp.at] TRACE: < +UMNOPROF: 0
0000027375 [app.help] INFO: Mobile Network Operator Profile (UMNOPROF): default (0)
0000027374 [ncp.at] TRACE: < OK
0000027374 [ncp.at] TRACE: > AT+CFUN?
0000027379 [app.help] INFO: Set module functionality (CFUN): minimum functionality (0)
0000027380 [ncp.at] TRACE: < +CFUN: 1
0000027381 [ncp.at] TRACE: < OK
0000027381 [ncp.at] TRACE: > AT+CFUN=0,0
0000027384 [app.help] INFO: Set module functionality (CFUN): minimum functionality (0)
0000027387 [app.help] INFO:   Reset Mode: do not reset before setting fun (0)
0000027624 [ncp.at] TRACE: < OK
0000027624 [ncp.at] TRACE: > AT+UMNOPROF=1
0000027626 [ncp.at] TRACE: < OK
0000027626 [ncp.at] TRACE: > AT+CFUN=15,0
0000027630 [app.help] INFO: Set module functionality (CFUN): silent reset (15)
0000027632 [app.help] INFO:   Reset Mode: do not reset before setting fun (0)
0000027629 [ncp.at] TRACE: < OK
0000038629 [ncp.at] TRACE: > AT
0000038634 [ncp.at] TRACE: < OK
0000038635 [ncp.at] TRACE: > AT+UMNOPROF?
0000038636 [ncp.at] TRACE: < +UMNOPROF: 0
0000054552 [app.help] INFO: Mobile Network Operator Profile (UMNOPROF): default (0)
0000038637 [ncp.at] TRACE: < OK
0000038637 [ncp.at] TRACE: > AT+CFUN?
0000054555 [app.help] INFO: Set module functionality (CFUN): minimum functionality (0)
0000038638 [ncp.at] TRACE: < +CFUN: 1
0000038638 [ncp.at] TRACE: < OK
0000038639 [ncp.at] TRACE: > AT+CFUN=0,0
0000054559 [app.help] INFO: Set module functionality (CFUN): minimum functionality (0)
0000054561 [app.help] INFO:   Reset Mode: do not reset before setting fun (0)
0000038817 [ncp.at] TRACE: < OK
0000038818 [ncp.at] TRACE: > AT+UMNOPROF=1
0000038819 [ncp.at] TRACE: < OK
0000038820 [ncp.at] TRACE: > AT+CFUN=15,0
0000054567 [app.help] INFO: Set module functionality (CFUN): silent reset (15)
0000054569 [app.help] INFO:   Reset Mode: do not reset before setting fun (0)
0000038821 [ncp.at] TRACE: < OK
0000049821 [ncp.at] TRACE: > AT
0000049826 [ncp.at] TRACE: < OK
0000049826 [ncp.at] TRACE: > AT+UMNOPROF?
0000049828 [ncp.at] TRACE: < +UMNOPROF: 0
0000054574 [app.help] INFO: Mobile Network Operator Profile (UMNOPROF): default (0)
0000049829 [ncp.at] TRACE: < OK
0000049829 [ncp.client] WARN: UMNOPROF=1 did not resolve a built-in profile, please check if UMNOPR
0000049829 [ncp.at] TRACE: > AT+IFC=2,2
0000049831 [ncp.at] TRACE: < OK
0000049831 [ncp.at] TRACE: > AT
0000049832 [ncp.at] TRACE: < OK
0000049832 [ncp.at] TRACE: > AT+COPS=3,2
0000054581 [app.help] INFO: Operator Selection (COPS) Set: mode=set format (3) format=numeric (2)
0000049834 [ncp.at] TRACE: < OK
0000049835 [ncp.at] TRACE: > AT+CGEREP=1,0
0000049837 [ncp.at] TRACE: < OK
0000049837 [ncp.at] TRACE: > AT+IPR=460800
0000049843 [ncp.at] TRACE: < OK
0000050844 [ncp.at] TRACE: > AT
0000050847 [ncp.at] TRACE: < OK
0000050847 [ncp.at] TRACE: > AT+URAT?
0000050850 [ncp.at] TRACE: < +CME ERROR: Operation not supported
0000050850 [ncp.at] TRACE: > AT+CEDRXS?
0000050855 [ncp.at] TRACE: < +CEDRXS:
0000050855 [ncp.at] TRACE: < OK
0000050855 [ncp.at] TRACE: > AT+CPSMS=0
0000050861 [ncp.at] TRACE: < OK
0000050861 [ncp.at] TRACE: > AT+CMUX=0,0,,1509,,,,,
0000050865 [ncp.at] TRACE: < OK
0000050866 [gsm0710muxer] INFO: Starting GSM07.10 muxer
0000050866 [gsm0710muxer] INFO: GSM07.10 muxer thread started
0000050866 [gsm0710muxer] INFO: Openning mux channel 0
0000052134 [gsm0710muxer] INFO: Openning mux channel 1
0000052137 [ncp.at] TRACE: > AT
0000052141 [ncp.at] TRACE: < OK
0000052142 [ncp.client] TRACE: NCP state changed: 1
0000052142 [net.pppncp] TRACE: NCP event 1
0000052143 [net.ppp.client] TRACE: PPP thread event ADM_UP
0000052144 [net.ppp.client] TRACE: State NONE -> READY
0000052146 [ncp.at] TRACE: > AT+CFUN=1,0
0000054603 [app.help] INFO: Set module functionality (CFUN): full functionality (1)
0000054605 [app.help] INFO:   Reset Mode: do not reset before setting fun (0)
0000052151 [ncp.at] TRACE: < OK
0000052152 [ncp.at] TRACE: > AT+CGDCONT=1,"IP","hologram"
0000054609 [app.help] INFO: PDP context definition (CGDCONT): cid=1 pdpType=IP APN=hologram
0000052181 [ncp.at] TRACE: < OK
0000052181 [ncp.at] TRACE: > AT+CFUN=1,0
0000054613 [app.help] INFO: Set module functionality (CFUN): full functionality (1)
0000054615 [app.help] INFO:   Reset Mode: do not reset before setting fun (0)
0000052189 [ncp.at] TRACE: < OK
0000052190 [ncp.at] TRACE: > AT+CEREG=2
0000054618 [app.help] INFO: EPS network (CEREG) Set to location enabled (2)
0000052195 [ncp.at] TRACE: < OK
0000052195 [ncp.client] TRACE: NCP connection state changed: 1
0000052195 [net.pppncp] TRACE: NCP event 2
0000052196 [net.pppncp] TRACE: State changed event: 1
0000052196 [net.ppp.client] TRACE: PPP thread event LOWER_DOWN
0000052197 [ncp.at] TRACE: > AT+COPS?
0000052202 [ncp.at] TRACE: < +COPS: 0,2,"45005",7
0000054626 [app.help] INFO: Operator Selection (COPS) Read: mode=automatic (0)
0000054628 [app.help] INFO:   format=numeric (2)
0000054630 [app.help] INFO:   oper=45005 carrier=SK Telecom Co. Ltd country=Korea S, Republic of
0000052202 [ncp.at] TRACE: < OK
0000052203 [ncp.at] TRACE: > AT+CEREG?
0000052208 [ncp.at] TRACE: < +CEREG: 2,5,"1003","2EAE03",7
0000054635 [app.help] INFO: EPS network (CEREG) Status: registered, roaming (5)
0000054636 [app.help] INFO:   Tracking area code: 1003
0000054637 [app.help] INFO:   Cell identifier: 2EAE03
0000054638 [app.help] INFO:   Access technology: LTE (7)
0000052209 [ncp.at] TRACE: < OK
0000052209 [ncp.client] TRACE: NCP connection state changed: 2
0000052209 [gsm0710muxer] INFO: Openning mux channel 2
0000053475 [net.pppncp] TRACE: NCP event 100
0000053475 [net.pppncp] TRACE: New auth info
0000053477 [net.pppncp] TRACE: NCP event 2
0000053478 [net.pppncp] TRACE: State changed event: 2
0000053478 [net.ppp.client] TRACE: PPP thread event LOWER_UP
0000053479 [net.ppp.client] TRACE: State READY -> CONNECT
0000053479 [net.ppp.client] TRACE: State CONNECT -> CONNECTING
0000053479 [ncp.at] TRACE: > AT+CIMI
0000053483 [ncp.at] TRACE: < OK
0000054485 [ncp.at] TRACE: > AT
0000054489 [ncp.at] TRACE: < OK
0000054490 [ncp.at] TRACE: > ATD*99***1#
0000054498 [net.ppp.client] TRACE: PPP phase -> 3
0000054499 [net.ppp.client] TRACE: PPP phase -> 6
0000054500 [ncp.at] TRACE: > AT+CGMI
0000054506 [ncp.at] TRACE: < OK
0000054507 [app] INFO: manufacturer: u-blox
0000054513 [app] INFO: model: SARA-R410M-02B
0000054520 [app] INFO: firmware version: L0.0.00.00.05.08 [Apr 17 2019 19:34:02]
0000054527 [app] INFO: ordering code: SARA-R410M-02B
0000054534 [app] INFO: IMEI: 3564######0146
0000054540 [app] INFO: IMSI: u-blox
0000054547 [app] INFO: ICCID: 894450#######81376
0000054547 [app] INFO: Still trying to connect to cellular 00:31
0000054548 [app] INFO: Power source: USB Host
0000054548 [app] INFO: Battery state: disconnected, SoC: -1.00
0000054648 [net.ppp.client] TRACE: PPP phase -> 7
0000054940 [net.ppp.client] TRACE: PPP phase -> 9
0000055236 [system.nm] INFO: State changed: IFACE_UP -> IFACE_LINK_UP
0000055237 [net.ppp.client] TRACE: PPP thread event UP
0000055238 [net.ppp.client] TRACE: State CONNECTING -> CONNECTED
0000055238 [net.pppncp] TRACE: Negotiated MTU: 1500
0000055238 [system.nm] INFO: State changed: IFACE_LINK_UP -> IP_CONFIGURED
0000055239 [net.ppp.client] TRACE: PPP phase -> 10
0000055245 [app] INFO: Connected to cellular in 00:31
0000055246 [app] INFO: Connecting to the Particle cloud...
0000055339 [system] INFO: Cloud: connecting
0000055343 [system] INFO: Cloud socket connected
0000055344 [comm.protocol.handshake] INFO: Establish secure connection
0000055750 [ncp.at] TRACE: > AT+CCID
0000055755 [ncp.at] TRACE: < +CCID: 89445########481376
0000055756 [ncp.at] TRACE: < OK
0000055757 [ncp.at] TRACE: > AT+CGSN
0000055763 [ncp.at] TRACE: < OK
0000055764 [ncp.at] TRACE: > ATI9
0000055770 [ncp.at] TRACE: < OK
0000055771 [comm.protocol.handshake] INFO: Sending HELLO message
0000056613 [comm.protocol.handshake] INFO: Handshake completed
0000056613 [comm.protocol.handshake] TRACE: Updating protocol flags
0000057003 [ncp.at] TRACE: > AT+CCID
0000057009 [ncp.at] TRACE: < +CCID: 8944#########1481376
0000057009 [ncp.at] TRACE: < OK
0000057011 [ncp.at] TRACE: > AT+CGSN
0000057016 [ncp.at] TRACE: < OK
0000057018 [ncp.at] TRACE: > ATI9
0000057024 [ncp.at] TRACE: < OK
0000057027 [comm.protocol] INFO: Posting 'S' describe message
0000057045 [comm.protocol] INFO: Posting 'A' describe message
0000057049 [comm.protocol] INFO: Sending subscriptions
0000057805 [comm.protocol] TRACE: Reply recieved: type=2, code=0
0000057821 [comm.protocol] TRACE: message id 46 complete with code 0.00
0000057822 [comm.protocol] TRACE: Updating system DESCRIBE checksum
0000058212 [ncp.at] TRACE: > AT+CCID
0000058217 [ncp.at] TRACE: < +CCID: 89445#########1376
0000058218 [ncp.at] TRACE: < OK
0000058219 [ncp.at] TRACE: > AT+CGSN
0000058225 [ncp.at] TRACE: < OK
0000058226 [ncp.at] TRACE: > ATI9
0000058231 [ncp.at] TRACE: < OK
0000058231 [comm.protocol] TRACE: rcv'd message type=13
0000058233 [comm.protocol] TRACE: Reply recieved: type=2, code=0
0000058234 [comm.protocol] TRACE: message id 47 complete with code 0.00
0000058234 [comm.protocol] TRACE: rcv'd message type=13
0000058335 [comm.protocol] TRACE: Reply recieved: type=2, code=0
0000058336 [comm.protocol] TRACE: message id 48 complete with code 0.00
0000058336 [comm.protocol] TRACE: rcv'd message type=13
0000058436 [comm.protocol] TRACE: Reply recieved: type=2, code=0
0000058437 [comm.protocol] TRACE: message id 49 complete with code 0.00
0000058437 [comm.protocol] TRACE: rcv'd message type=13
0000058537 [comm.protocol] TRACE: Reply recieved: type=2, code=0
0000058538 [comm.protocol] TRACE: message id 50 complete with code 0.00
0000058539 [comm.protocol] TRACE: rcv'd message type=13
0000058639 [comm.protocol] TRACE: Reply recieved: type=2, code=69
0000058640 [comm.protocol] TRACE: message id 51 complete with code 2.05
0000058641 [comm.protocol] INFO: Received TIME response: 1637297995
0000058642 [comm.protocol] TRACE: rcv'd message type=12
0000058741 [comm.protocol] TRACE: Reply recieved: type=2, code=0
0000058742 [comm.protocol] TRACE: message id 52 complete with code 0.00
0000058743 [comm.protocol] TRACE: Updating application DESCRIBE checksum
0000058744 [comm.protocol] TRACE: rcv'd message type=13
0000058843 [comm.protocol] TRACE: Reply recieved: type=2, code=0
0000058844 [comm.protocol] TRACE: message id 53 complete with code 0.00
0000058845 [comm.protocol] TRACE: rcv'd message type=13
0000058945 [comm.protocol] TRACE: Reply recieved: type=2, code=0
0000058946 [comm.protocol] TRACE: message id 54 complete with code 0.00
0000058947 [comm.protocol] TRACE: rcv'd message type=13
0000059047 [comm.protocol] TRACE: Reply recieved: type=2, code=0
0000059048 [comm.protocol] TRACE: message id 55 complete with code 0.00
0000059049 [comm.protocol] TRACE: Updating subscriptions checksum
0000059050 [comm.protocol] TRACE: rcv'd message type=13
0000059081 [comm.protocol] TRACE: rcv'd message type=8
0000059081 [system] INFO: Cloud connected
0000059083 [app] INFO: Successfully connected to the Particle cloud in 00:03
0000059085 [app] INFO: Cloud connected for 00:00
0000059086 [ncp.at] TRACE: > AT+COPS=3,2
0000059227 [app.help] INFO: Operator Selection (COPS) Set: mode=set format (3) format=numeric (2)
0000059090 [ncp.at] TRACE: < OK
0000059091 [ncp.at] TRACE: > AT+COPS?
0000059096 [ncp.at] TRACE: < +COPS: 0,2,"45005",7
0000059231 [app.help] INFO: Operator Selection (COPS) Read: mode=automatic (0)
0000059233 [app.help] INFO:   format=numeric (2)
0000059235 [app.help] INFO:   oper=45005 carrier=SK Telecom Co. Ltd country=Korea S, Republic of
0000059097 [ncp.at] TRACE: < OK
0000059098 [ncp.at] TRACE: > AT+CEREG?
0000059103 [ncp.at] TRACE: < +CEREG: 2,5,"1003","2EAE03",7
0000059240 [app.help] INFO: EPS network (CEREG) Status: registered, roaming (5)
0000059241 [app.help] INFO:   Tracking area code: 1003
0000059242 [app.help] INFO:   Cell identifier: 2EAE03
0000059243 [app.help] INFO:   Access technology: LTE (7)
0000059104 [ncp.at] TRACE: < OK
0000059104 [ncp.at] TRACE: > AT+CREG?
0000059109 [ncp.at] TRACE: < +CREG: 0,5
0000059248 [app.help] INFO: Network registration (CREG) Status: registered, roaming (5)
0000059110 [ncp.at] TRACE: < OK
0000059110 [ncp.at] TRACE: > AT+CIMI
0000059111 [app] INFO: Cellular Info: cid=3059203 lac=4099 mcc=450 mnc=5
0000059112 [app] INFO: Carrier: SK Telecom Co. Ltd Country: Korea S, Republic of
0000059116 [ncp.at] TRACE: < OK
0000059116 [ncp.at] TRACE: > AT+CCID
0000059122 [ncp.at] TRACE: < +CCID: 8944#########81376
0000059122 [ncp.at] TRACE: < OK
0000059123 [ncp.at] TRACE: > AT+CGSN
0000059129 [ncp.at] TRACE: < OK
0000059129 [ncp.at] TRACE: > ATI9
0000059135 [ncp.at] TRACE: < OK
0000059136 [ncp.at] TRACE: > AT+COPS=3,2
0000059260 [app.help] INFO: Operator Selection (COPS) Set: mode=set format (3) format=numeric (2)
0000059140 [ncp.at] TRACE: < OK
0000059141 [ncp.at] TRACE: > AT+COPS?
0000059146 [ncp.at] TRACE: < +COPS: 0,2,"45005",7
0000059265 [app.help] INFO: Operator Selection (COPS) Read: mode=automatic (0)
0000059266 [app.help] INFO:   format=numeric (2)
0000059268 [app.help] INFO:   oper=45005 carrier=SK Telecom Co. Ltd country=Korea S, Republic of
0000059147 [ncp.at] TRACE: < OK
0000059147 [ncp.at] TRACE: > AT+CEREG?
0000059153 [ncp.at] TRACE: < +CEREG: 2,5,"1003","2EAE03",7
0000059274 [app.help] INFO: EPS network (CEREG) Status: registered, roaming (5)
0000059275 [app.help] INFO:   Tracking area code: 1003
0000059276 [app.help] INFO:   Cell identifier: 2EAE03
0000059277 [app.help] INFO:   Access technology: LTE (7)
0000059154 [ncp.at] TRACE: < OK
0000059154 [ncp.at] TRACE: > AT+CREG?
0000059159 [ncp.at] TRACE: < +CREG: 0,5
0000059281 [app.help] INFO: Network registration (CREG) Status: registered, roaming (5)
0000059160 [ncp.at] TRACE: < OK
0000059161 [ncp.at] TRACE: > AT+COPS=3,2
0000059285 [app.help] INFO: Operator Selection (COPS) Set: mode=set format (3) format=numeric (2)
0000059165 [ncp.at] TRACE: < OK
0000059166 [ncp.at] TRACE: > AT+COPS?
0000059171 [ncp.at] TRACE: < +COPS: 0,2,"45005",7
0000059290 [app.help] INFO: Operator Selection (COPS) Read: mode=automatic (0)
0000059291 [app.help] INFO:   format=numeric (2)
0000059293 [app.help] INFO:   oper=45005 carrier=SK Telecom Co. Ltd country=Korea S, Republic of
0000059172 [ncp.at] TRACE: < OK
0000059172 [ncp.at] TRACE: > AT+UCGED=5
0000059177 [ncp.at] TRACE: < OK
0000059178 [ncp.at] TRACE: > AT+UCGED?
0000059183 [ncp.at] TRACE: < +RSRP: 177,2500,"-079.60",
0000059183 [ncp.at] TRACE: < +RSRQ: 177,2500,"-07.60",
0000059184 [ncp.at] TRACE: < OK
0000059185 [ncp.at] TRACE: > AT+UCGED=5
0000059189 [ncp.at] TRACE: < OK
0000059190 [ncp.at] TRACE: > AT+UCGED?
0000059196 [ncp.at] TRACE: < +RSRP: 177,2500,"-079.60",
0000059196 [ncp.at] TRACE: < +RSRQ: 177,2500,"-07.30",
0000059197 [ncp.at] TRACE: < OK
0000059197 [app] INFO: Technology: LTE Cat M1, Band: LTE 900 (B5)
0000059198 [ncp.at] TRACE: > AT+COPS=3,2
0000059307 [app.help] INFO: Operator Selection (COPS) Set: mode=set format (3) format=numeric (2)
0000059202 [ncp.at] TRACE: < OK
0000059203 [ncp.at] TRACE: > AT+COPS?
0000059208 [ncp.at] TRACE: < +COPS: 0,2,"45005",7
0000059312 [app.help] INFO: Operator Selection (COPS) Read: mode=automatic (0)
0000059313 [app.help] INFO:   format=numeric (2)
0000059315 [app.help] INFO:   oper=45005 carrier=SK Telecom Co. Ltd country=Korea S, Republic of
0000059208 [ncp.at] TRACE: < OK
0000059209 [ncp.at] TRACE: > AT+UCGED=5
0000059214 [ncp.at] TRACE: < OK
0000059214 [ncp.at] TRACE: > AT+UCGED?
0000059220 [ncp.at] TRACE: < +RSRP: 177,2500,"-079.50",
0000059221 [ncp.at] TRACE: < +RSRQ: 177,2500,"-08.00",
0000059221 [ncp.at] TRACE: < OK
0000059222 [app] INFO: Strength: 63.9, Quality: 70.6, RAT: LTE Cat M1
0000059222 [app] INFO: Power source: USB Host
0000059223 [app] INFO: Battery state: disconnected, SoC: -1.00
0000059223 [app] INFO: Free Memory: 82264
0000059224 [app] INFO: Time: Fri Nov 19 04:59:55 2021
0000069084 [app] INFO: Requesting device name and IP address...
0000069087 [app] INFO: Cloud connected for 00:10
0000069088 [ncp.at] TRACE: > AT+COPS=3,2
0000069226 [app.help] INFO: Operator Selection (COPS) Set: mode=set format (3) format=numeric (2)
0000069094 [ncp.at] TRACE: < OK
0000069095 [ncp.at] TRACE: > AT+COPS?
0000069100 [ncp.at] TRACE: < +COPS: 0,2,"45005",7
0000069231 [app.help] INFO: Operator Selection (COPS) Read: mode=automatic (0)
0000069232 [app.help] INFO:   format=numeric (2)
0000069234 [app.help] INFO:   oper=45005 carrier=SK Telecom Co. Ltd country=Korea S, Republic of
0000069101 [ncp.at] TRACE: < OK
0000069102 [ncp.at] TRACE: > AT+CEREG?
0000069107 [ncp.at] TRACE: < +CEREG: 2,5,"1003","2EAE03",7
0000069240 [app.help] INFO: EPS network (CEREG) Status: registered, roaming (5)
0000069241 [app.help] INFO:   Tracking area code: 1003
0000069242 [app.help] INFO:   Cell identifier: 2EAE03
0000069243 [app.help] INFO:   Access technology: LTE (7)
0000069108 [ncp.at] TRACE: < OK
0000069108 [ncp.at] TRACE: > AT+CREG?
0000069114 [ncp.at] TRACE: < +CREG: 0,5
0000069247 [app.help] INFO: Network registration (CREG) Status: registered, roaming (5)
0000069114 [ncp.at] TRACE: < OK
0000069114 [app] INFO: Cellular Info: cid=3059203 lac=4099 mcc=450 mnc=5
0000069116 [app] INFO: Carrier: SK Telecom Co. Ltd Country: Korea S, Republic of
0000069117 [ncp.at] TRACE: > AT+CCID
0000069122 [ncp.at] TRACE: < +CCID: 89445########81376
0000069123 [ncp.at] TRACE: < OK
0000069123 [ncp.at] TRACE: > AT+CGSN
0000069129 [ncp.at] TRACE: < OK
0000069129 [ncp.at] TRACE: > ATI9
0000069135 [ncp.at] TRACE: < OK
0000069136 [ncp.at] TRACE: > AT+COPS=3,2
0000069259 [app.help] INFO: Operator Selection (COPS) Set: mode=set format (3) format=numeric (2)
0000069140 [ncp.at] TRACE: < OK
0000069141 [ncp.at] TRACE: > AT+COPS?
0000069146 [ncp.at] TRACE: < +COPS: 0,2,"45005",7
0000069263 [app.help] INFO: Operator Selection (COPS) Read: mode=automatic (0)
0000069265 [app.help] INFO:   format=numeric (2)
0000069267 [app.help] INFO:   oper=45005 carrier=SK Telecom Co. Ltd country=Korea S, Republic of
0000069146 [ncp.at] TRACE: < OK
0000069147 [ncp.at] TRACE: > AT+CEREG?
0000069152 [ncp.at] TRACE: < +CEREG: 2,5,"1003","2EAE03",7
0000069272 [app.help] INFO: EPS network (CEREG) Status: registered, roaming (5)
0000069273 [app.help] INFO:   Tracking area code: 1003
0000069274 [app.help] INFO:   Cell identifier: 2EAE03
0000069275 [app.help] INFO:   Access technology: LTE (7)
0000069153 [ncp.at] TRACE: < OK
0000069153 [ncp.at] TRACE: > AT+CREG?
0000069158 [ncp.at] TRACE: < +CREG: 0,5
0000069280 [app.help] INFO: Network registration (CREG) Status: registered, roaming (5)
0000069159 [ncp.at] TRACE: < OK
0000069159 [ncp.at] TRACE: > AT+COPS=3,2
0000069284 [app.help] INFO: Operator Selection (COPS) Set: mode=set format (3) format=numeric (2)
0000069164 [ncp.at] TRACE: < OK
0000069164 [ncp.at] TRACE: > AT+COPS?
0000069169 [ncp.at] TRACE: < +COPS: 0,2,"45005",7
0000069288 [app.help] INFO: Operator Selection (COPS) Read: mode=automatic (0)
0000069290 [app.help] INFO:   format=numeric (2)
0000069292 [app.help] INFO:   oper=45005 carrier=SK Telecom Co. Ltd country=Korea S, Republic of
0000069170 [ncp.at] TRACE: < OK
0000069171 [ncp.at] TRACE: > AT+UCGED=5
0000069175 [ncp.at] TRACE: < OK
0000069176 [ncp.at] TRACE: > AT+UCGED?
0000069182 [ncp.at] TRACE: < +RSRP: 177,2500,"-077.30",
0000069182 [ncp.at] TRACE: < +RSRQ: 177,2500,"-06.40",
0000069183 [ncp.at] TRACE: < OK
0000069183 [ncp.at] TRACE: > AT+UCGED=5
0000069188 [ncp.at] TRACE: < OK
0000069189 [ncp.at] TRACE: > AT+UCGED?
0000069195 [ncp.at] TRACE: < +RSRP: 177,2500,"-077.40",
0000069195 [ncp.at] TRACE: < +RSRQ: 177,2500,"-08.30",
0000069196 [ncp.at] TRACE: < OK
0000069196 [app] INFO: Technology: LTE Cat M1, Band: LTE 900 (B5)
0000069197 [ncp.at] TRACE: > AT+COPS=3,2
0000069306 [app.help] INFO: Operator Selection (COPS) Set: mode=set format (3) format=numeric (2)
0000069201 [ncp.at] TRACE: < OK
0000069202 [ncp.at] TRACE: > AT+COPS?
0000069207 [ncp.at] TRACE: < +COPS: 0,2,"45005",7
0000069310 [app.help] INFO: Operator Selection (COPS) Read: mode=automatic (0)
0000069312 [app.help] INFO:   format=numeric (2)
0000069314 [app.help] INFO:   oper=45005 carrier=SK Telecom Co. Ltd country=Korea S, Republic of
0000069207 [ncp.at] TRACE: < OK
0000069208 [ncp.at] TRACE: > AT+UCGED=5
0000069213 [ncp.at] TRACE: < OK
0000069213 [ncp.at] TRACE: > AT+UCGED?
0000069219 [ncp.at] TRACE: < +RSRP: 177,2500,"-077.60",
0000069220 [ncp.at] TRACE: < +RSRQ: 177,2500,"-06.70",
0000069220 [ncp.at] TRACE: < OK
0000069220 [app] INFO: Strength: 66.0, Quality: 76.5, RAT: LTE Cat M1
0000069221 [app] INFO: Power source: USB Host
0000069223 [app] INFO: Battery state: charged, SoC: 92.50
0000069223 [app] INFO: Free Memory: 82072
0000069806 [comm.protocol] TRACE: rcv'd message type=8
0000069807 [comm.protocol] TRACE: Reply recieved: type=2, code=0
0000069807 [comm.protocol] TRACE: message id 56 complete with code 0.00
0000069808 [comm.protocol] TRACE: rcv'd message type=13
0000069806 [app] INFO: Device name: ewg0001
0000069910 [comm.protocol] TRACE: rcv'd message type=8
0000069910 [app] INFO: Public IP address: 195.226.133.56
0000070009 [comm.protocol] TRACE: Reply recieved: type=2, code=0
0000070010 [comm.protocol] TRACE: message id 57 complete with code 0.00
0000070011 [comm.protocol] TRACE: rcv'd message type=13
0000079087 [app] INFO: Cloud connected for 00:20
0000079225 [app.help] INFO: EPS network (CEREG) Status: registered, roaming (5)
0000079226 [app.help] INFO:   Tracking area code: 1003
0000079227 [app.help] INFO:   Cell identifier: 2EAE03
0000079229 [app.help] INFO:   Access technology: LTE (7)
0000079231 [app.help] INFO: Network registration (CREG) Status: registered, roaming (5)
0000079112 [app] INFO: Cellular Info: cid=3059203 lac=4099 mcc=450 mnc=5
0000079114 [app] INFO: Carrier: SK Telecom Co. Ltd Country: Korea S, Republic of
0000079238 [app.help] INFO: EPS network (CEREG) Status: registered, roaming (5)
0000079239 [app.help] INFO:   Tracking area code: 1003
0000079240 [app.help] INFO:   Cell identifier: 2EAE03
0000079241 [app.help] INFO:   Access technology: LTE (7)
0000079244 [app.help] INFO: Network registration (CREG) Status: registered, roaming (5)
0000079194 [app] INFO: Technology: LTE Cat M1, Band: LTE 900 (B5)
0000079219 [app] INFO: Strength: 60.8, Quality: 58.8, RAT: LTE Cat M1
0000079219 [app] INFO: Power source: USB Host
0000079221 [app] INFO: Battery state: charged, SoC: 92.50
0000079221 [app] INFO: Free Memory: 82088
0000089087 [app] INFO: Cloud connected for 00:30
0000089285 [app.help] INFO: EPS network (CEREG) Status: registered, roaming (5)
0000089286 [app.help] INFO:   Tracking area code: 1003
0000089287 [app.help] INFO:   Cell identifier: 2EAE03
0000089288 [app.help] INFO:   Access technology: LTE (7)
0000089291 [app.help] INFO: Network registration (CREG) Status: registered, roaming (5)
0000089120 [app] INFO: Cellular Info: cid=3059203 lac=4099 mcc=450 mnc=5
0000089121 [app] INFO: Carrier: SK Telecom Co. Ltd Country: Korea S, Republic of
0000089298 [app.help] INFO: EPS network (CEREG) Status: registered, roaming (5)
0000089299 [app.help] INFO:   Tracking area code: 1003
0000089300 [app.help] INFO:   Cell identifier: 2EAE03
0000089301 [app.help] INFO:   Access technology: LTE (7)
0000089304 [app.help] INFO: Network registration (CREG) Status: registered, roaming (5)
0000089242 [app] INFO: Technology: LTE Cat M1, Band: LTE 900 (B5)
0000089279 [app] INFO: Strength: 62.9, Quality: 73.5, RAT: LTE Cat M1
0000089279 [app] INFO: Power source: USB Host
0000089281 [app] INFO: Battery state: charged, SoC: 92.50
0000089281 [app] INFO: Free Memory: 82544
0000099087 [app] INFO: Cloud connected for 00:40
0000099246 [app.help] INFO: EPS network (CEREG) Status: registered, roaming (5)
0000099247 [app.help] INFO:   Tracking area code: 1003
0000099248 [app.help] INFO:   Cell identifier: 2EAE03
0000099250 [app.help] INFO:   Access technology: LTE (7)
0000099252 [app.help] INFO: Network registration (CREG) Status: registered, roaming (5)
0000099120 [app] INFO: Cellular Info: cid=3059203 lac=4099 mcc=450 mnc=5
0000099122 [app] INFO: Carrier: SK Telecom Co. Ltd Country: Korea S, Republic of
0000099259 [app.help] INFO: EPS network (CEREG) Status: registered, roaming (5)
0000099260 [app.help] INFO:   Tracking area code: 1003
0000099261 [app.help] INFO:   Cell identifier: 2EAE03
0000099262 [app.help] INFO:   Access technology: LTE (7)
0000099265 [app.help] INFO: Network registration (CREG) Status: registered, roaming (5)
0000099215 [app] INFO: Technology: LTE Cat M1, Band: LTE 900 (B5)
0000099240 [app] INFO: Strength: 69.1, Quality: 79.4, RAT: LTE Cat M1
0000099240 [app] INFO: Power source: USB Host
0000099242 [app] INFO: Battery state: charged, SoC: 92.50
0000099242 [app] INFO: Free Memory: 82088
0000109087 [app] INFO: Cloud connected for 00:50
0000109288 [app.help] INFO: EPS network (CEREG) Status: registered, roaming (5)
0000109289 [app.help] INFO:   Tracking area code: 1003
0000109290 [app.help] INFO:   Cell identifier: 2EAE03
0000109291 [app.help] INFO:   Access technology: LTE (7)
0000109294 [app.help] INFO: Network registration (CREG) Status: registered, roaming (5)
0000109123 [app] INFO: Cellular Info: cid=3059203 lac=4099 mcc=450 mnc=5
0000109125 [app] INFO: Carrier: SK Telecom Co. Ltd Country: Korea S, Republic of
0000109301 [app.help] INFO: EPS network (CEREG) Status: registered, roaming (5)
0000109302 [app.help] INFO:   Tracking area code: 1003
0000109303 [app.help] INFO:   Cell identifier: 2EAE03
0000109304 [app.help] INFO:   Access technology: LTE (7)
0000109307 [app.help] INFO: Network registration (CREG) Status: registered, roaming (5)
0000109245 [app] INFO: Technology: LTE Cat M1, Band: LTE 900 (B5)
0000109282 [app] INFO: Strength: 68.0, Quality: 82.4, RAT: LTE Cat M1
0000109283 [app] INFO: Power source: USB Host
0000109284 [app] INFO: Battery state: charged, SoC: 92.50
0000109285 [app] INFO: Free Memory: 82608

I think you should set a shorter Particle.keepAlive() period.
Start off with Particle.keepAlive(30) and then gradually increase the value to find the correct setting for your provider.

Thank you for your suggestion.
So just put
Particle.keepAlive(30) in setup() is this correct?

Correct

It is working now with 30. I haven’t tested yet for any bigger number yet.
Thanks!

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