BX3105 error 919 / 922

IoT Modules
1

What is happening:

The BX3105 works fine for a couple of seconds, with WIFI (2.4G WPA/PSK2) connected and a bluetooth classic terminal connected. then it resets with the error code 919 / 922 (sometimes one, sometimes the other) and a error message similar to ESP boot. i did not find much about what are these errors, neither have a clue of why its resetting the RTC Watchdog (boot message).

Sierra Wireless Copyright 2018
BX310x.2.6.3
READY
ets Jun  8 2016 00:22:57

rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff80c8,len:4
load:0x3fff80cc,len:436
load:0x40078000,len:0
load:0x40078000,len:19740
secure boot check fail
ets_main.c 371 
ets Jun  8 2016 00:22:57

rst:0x10 (RTCWDT_RTC_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff80c8,len:4
load:0x3fff80cc,len:436
load:0x40078000,len:0
load:0x40078000,len:19740
entry 0x40078c38

+SRBTC_IND: 0

+SRBTC_IND: 12

Sierra Wireless Copyright 2018
BX310x.2.6.3
READY

BX310x.2.6.3
OK

X2025404142110
OK

+MACADDR: "REMOVED FOR PRIVACY"
OK

OK

OK

+CME ERROR: 919

OK

OK

+CME ERROR: 919

+CME ERROR: 919

+CME ERROR: 919

OK

OK

OK

OK
1 Like
2

You can upgrade to newer FW and see if there is improvement

3

hi @italocjs @jyijyi
did you fixed the issue?
am currently working on the same module and also getting the same issue.

4

Did you try latest firmware?

5

yes, iam using latest fw @jyijyi

6

Can you paste your AT log to show the problem?

8

i don’t see error code 919 in your log…
Is problem only related to MQTT?
How about simple TCP connection?

10

simple TCP connection is working fine.
yes the problem related to MQTT.
whenever network is not available, the MQTT was not able to send the data to the server. Then I’m executing the Wi-Fi initialization code.
in this case am getting the rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) issue

11

do you mean this?

image
image1092×344 24.2 KB

How about close and delete the MQTT session when it is not able to send data?

AT+KMQTTCLOSE
AT+KMQTTDEL