BX3105 error 919 / 922

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

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