SARA-R410M-02B can not connect to network

Hi, I’m testing on ublox EVK-R4 module with SARA-R410M-02B adapter board for connecting with LTE-M base station, but I can not register and access to the base station successfully. Could you help me for solving this problem ?
Thanks in advance.

The following are the results of running the full modem diagnostic :
AT

OK

Successful response for AT query…

ATI

Manufacturer: u-blox

Model: SARA-R410M-02B

Revision: L0.0.00.00.05.08 [Apr 17 2019 19:34:02]

SVN: 03

IMEI: 352753091028629

OK

AT+CGMI

u-blox

OK

Manufacturer : u-blox

AT+CGMM

SARA-R410M-02B

OK

Model Number : SARA-R410M-02B

AT+GMM

SARA-R410M-02B

OK

AT+CPIN?

+CPIN: READY

OK

SIM is ready

AT+CCID

+CCID: 8981300999999000006

OK

ICCID of the SIM is +CCID: 8981300999999000006

AT+CRSM=176,28539,0,0,12

+CRSM: 144,0,“02F80102F81002F85102F861”

OK

AT+CFUN?

+CFUN: 1

OK

Device has Full functionality.

AT+CSQ

+CSQ: 99,99

OK

Signal Strength is unknown. Device is not able to acquire any network. Check if device has a valid SIM.

AT+CREG?

+CREG: 0,0

OK

The device is not registered and is currently NOT searching for a new operator to which to register.

AT+CGREG?

+CGREG: 0,4

OK

Registration status is unknown.

AT+CGDCONT?

+CGDCONT: 1,“IPV4V6”,"",“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0

+CGDCONT: 2,“IPV4V6”,“vzwadmin”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0

+CGDCONT: 3,“IPV4V6”,“VZWINTERNET”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0

+CGDCONT: 4,“IPV4V6”,“vzwapp”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0

+CGDCONT: 6,“IPV4V6”,“VZWCLASS6”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0

OK

Following connection profiles are available,

CID-> 1

PDP Type->IPV4V6

APN->

PDP Address->0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0

Data Compression->0

Header Compression->0


CID-> 2

PDP Type->IPV4V6

APN->vzwadmin

PDP Address->0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0

Data Compression->0

Header Compression->0


CID-> 3

PDP Type->IPV4V6

APN->VZWINTERNET

PDP Address->0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0

Data Compression->0

Header Compression->0


CID-> 4

PDP Type->IPV4V6

APN->vzwapp

PDP Address->0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0

Data Compression->0

Header Compression->0


CID-> 6

PDP Type->IPV4V6

APN->VZWCLASS6

PDP Address->0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0

Data Compression->0

Header Compression->0

AT+CGACT?

+CGACT: 1,0

+CGACT: 2,0

+CGACT: 3,0

+CGACT: 4,0

+CGACT: 6,0

OK

AT+COPS?

+COPS: 0

OK

AT+COPS=?

+COPS: (1,“208 92”,“208 92”,“20892”,7),(0,1,2,3,4),(0,1,2)

OK

Available Networks:

Network Name->208 92

Network ID->20892

Network Status->Available

Networks found


Also can not chose radio access technology
AT+URAT?

+CME ERROR: Operation not supported

AT+URAT=7,7

+CME ERROR: Operation not supported


can not set the band

AT+UBANDMASK?

+CME ERROR: Operation not supported