cannot get expected data format: Failed to open file '/sys/class/net/wwan1/qmi/raw_ip

[Nicolas RENAULT]

I continu to search :)

lot of questions.

minicom and AT commands

at +csq

+csq: 17,99

OK
at!gstatus?

!GSTATUS:
Current Time:  1664             Temperature: 47
Bootup Time:   0                Mode:        ONLINE
System mode:   LTE              PS state:    Not attached
LTE band:      No band          LTE bw:      Unknown
LTE Rx chan:   65535            LTE Tx chan: 65535
EMM state:     Deregistered     No Cell
RRC state:     RRC Idle
IMS reg state: No Srv

RSSI (dBm):    -79              Tx Power:    0
RSRP (dBm):    -113             TAC:         XXXXXXXXXXXXXx
RSRQ (dB):     -9               Cell ID:     XXXXXXXXXXXXXXXxx
SINR (dB):      6.6


is this normal ?

System mode:   LTE              PS state:    Not attached
LTE band:      No band          LTE bw:      Unknown
LTE Rx chan:   65535            LTE Tx chan: 6553

but if I recall the AT command regulary a have this :

  System mode:   LTE              PS state:    Not attached
LTE band:      B20              LTE bw:      10 MHz
LTE Rx chan:   6400             LTE Tx chan: 24400
EMM state:     Deregistered     Attaching
RRC state:     RRC Idle
IMS reg state: No Srv

RSSI (dBm):    -67              Tx Power:    0
RSRP (dBm):    -94              TAC:         E487 (58503)
RSRQ (dB):     -9               Cell ID:     009CA404 (10265604)
SINR (dB):      6.4

5 seconde after :

at!gstatus?

System mode:   LTE              PS state:    Not attached
LTE band:      B7               LTE bw:      20 MHz
LTE Rx chan:   3350             LTE Tx chan: 21350
EMM state:     Reg Initiated    Waiting for NW
RRC state:     Waiting RRC Cfm
IMS reg state: No Srv

RSSI (dBm):    -83              Tx Power:    0
RSRP (dBm):    -113             TAC:         E487 (58503)
RSRQ (dB):     -10              Cell ID:     0624943D (103060541)
SINR (dB):      4.4

and 5 secondes after

LTE band:      B3               LTE bw:      10 MHz
LTE Rx chan:   1501             LTE Tx chan: 19501
EMM state:     Deregistered     Attaching
RRC state:     RRC Idle
IMS reg state: No Srv

RSSI (dBm):    -79              Tx Power:    0
RSRP (dBm):    -114             TAC:         E487 (58503)
RSRQ (dB):     -9               Cell ID:     0927EF03 (153612035)
SINR (dB):      5.6

and back to No Band.

System mode:   LTE              PS state:    Not attached
LTE band:      No band          LTE bw:      Unknown
LTE Rx chan:   65535            LTE Tx chan: 65535
EMM state:     Deregistered     No Cell
RRC state:     RRC Idle
IMS reg state: No Srv

RSSI (dBm):    -79              Tx Power:    0
RSRP (dBm):    -114             TAC:         E487 (58503)
RSRQ (dB):     -9               Cell ID:     0927EF03 (153612035)
SINR (dB):      4.4

I think that i have a probleme with reception , it's normal that Cell ID 
change each 5 secondes ?

for information the operator antenna is at about 100 meters only from 
the equipement antenna.

in previous message I have this on

/ > qmicli -d /dev/cdc-wdm1 --nas-network-scan : /
/ >/Network [0]: />/MCC: '208' />/MNC: '10' />/Status: 'current-serving, 
home, not-forbidden, preferred' />/Description: 'SFR' ..... //

if the network scan report , this will assume that I can use the network ?

It's normal that I dont have umts signal ? ( I try to force umts ) :

qmicli -d /dev/cdc-wdm1 --nas-set-system-selection-preference='umts'

then no more signal  :

qmicli -d /dev/cdc-wdm1 --nas-get-signal-strength
[/dev/cdc-wdm1] Successfully got signal strength
Current:
     Network 'cdma-1x': '-128 dBm'
Other:
     Network 'cdma-1x': '-128 dBm'
     Network 'cdma-1xevdo': '-125 dBm'
RSSI:
     Network 'cdma-1x': '-128 dBm'
     Network 'cdma-1xevdo': '-125 dBm'
ECIO:
     Network 'cdma-1x': '-2,5 dBm'
     Network 'cdma-1xevdo': '-2,5 dBm'
IO: '-106 dBm'
SINR: (8) '9,0 dB'


others info
on another
equipement (same hardware but not in the same place and only 3g on the 
area ) :

Current Time:  67276            Temperature: 55
Bootup Time:   0                Mode:        ONLINE
System mode:   WCDMA            PS state:    Attached
WCDMA band:    WCDMA 900
WCDMA channel: 3075
GMM (PS) state:REGISTERED       NORMAL SERVICE
MM (CS) state: IDLE             NORMAL SERVICE

WCDMA L1 state:L1M_FACH         LAC:         xxxxxxxxxx
RRC state:   CELL_FACH          Cell ID:     XXXXXXXXXXXXXXX
RxM RSSI C0:   -85              RxD RSSI C0: -106
RxM RSSI C1:   -106             RxD RSSI C1: -106

no problem to get network and then connect , acces to the internet OK.

Regards,

Nicolas.
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