Commands can be issued using 3.3v serial on rx/tx pins

# switch to debug mode

*DEBUG

# switch to admin mode

*ADMIN

direct connection with gsm modem

ati
ToL620:ati

LYNQ
LYNQ-L620G
L620G_v01_01b09
L620G_V3

OK

## read apn settings

AT*MCGDEFCONT?
ToL620:AT*MCGDEFCONT?

*MCGDEFCONT: "IPV4V6","internet"

OK


## read SIM card number

AT*MICCID
ToL620:AT*MICCID

+CME ERROR: SIM not inserted

?? hm. we do have sim card inserted!

AT*MICCID
ToL620:AT*MICCID

*MICCID: 8946032000001290095F

OK


## read device IMEI

AT+CGSN=1
ToL620:AT+CGSN=1

+CGSN: 864823045031648

OK

## check if device is connected

AT+CREG?
ToL620:AT+CREG?

+CREG: 0,0

OK

AT+CREG?
ToL620:AT+CREG?

+CREG: 0,7

OK

## read current NB network band

AT*MBAND?
ToL620:AT*MBAND?

OK

AT*MBAND?
ToL620:AT*MBAND?

*MBAND: 20

OK

## signal quality 

AT+CESQ
ToL620:AT+CESQ

+CESQ: 38,0,255,255,28,63

OK

+CESQ: <rxlev>,<ber>,<rscp>,<ecno>,<rsrq>,<rsrp>

AT+CESQ=?
ToL620:AT+CESQ=?

+CESQ: (0-63,99),(0-7,99),(255),(255),(0-34,255),(0-97,255)

OK

# other commands from firmware

*ANGLE
x:+0.161 y:+0.390 x:-0000711 y:-0001718


*INFORAMTION
NUM:1 Idel
NUM:2 Idel
NUM:3 Idel


# power off

*PWROFF
L620 power off


## power on - with non working sim

*PWRON
ToL620:ATE0
L620 power on

*MATREADY: 1

+CFUN: 1

+ISOFTSIM:0,ready

## power on - with working sim

*PWRON
ToL620:ATE0
L620 power on

*MATREADY: 1

+CFUN: 1

+CPIN: READY

+IP: 10.181.12.138

+EGACT:1,1,1,1

+ISOFTSIM:0,ready


# back to debug mode

*DEBUG

# go back to sleep

*SLEEP