Change sim to external slot

on mangOH yellow by default module embedded sim is selected how to change it to external slot sim

Type: EMBEDDED
ICCID: 89332401000010743629
Home Network Operator: I TIM
EID: 89033240817620069918070002103913
IMSI: 222013068811959
Phone Number:
root@swi-mdm9x28-wp:~#

you can see here

I selected external slot sim but not able to perform cm data connect. There is some problem with by default octaveapps which restricts this, could you tell me which are octave apps so i can remove them

root@swi-mdm9x28-wp:~# app status
[stopped] NtagDhubIf
[running] actions
[running] atAirVantage
[running] atQmiLinker
[running] atService
[running] audioService
[running] avcService
[running] battery
[stopped] bluetoothSensorTag
[running] button
[running] buzzer
[running] canopen
[running] cellNetService
[running] dataConnectionService
[stopped] dataHub
[running] environment
[running] fwupdateService
[running] gpioService
[stopped] helloYellow
[running] imu
[running] io
[running] leds
[running] light
[running] location
[running] modbus
[running] modemService
[stopped] ntag
[running] portService
[running] positioningService
[running] powerMgr
[running] qmiAirVantage
[running] remote
[running] secStore
[stopped] spiService
[running] tools
[running] util
[stopped] vegasMode
[running] virtual
[stopped] voiceCallService
[stopped] wifi
[stopped] wifiService

you can see here:

getting below error, is there any way to force mobile operator manually

root@swi-mdm9x28-wp:~# cm data
Index: 1
APN: web.vodafone.de
PDP Type: IPV4V6
Connected: no
root@swi-mdm9x28-wp:~# cm radio
Power: ON
Current Network Operator:
Current RAT: Module not registered on network, RAT not available
Status: Registration was denied, usually because of invalid access credentials (LE_MRC_REG_DENIED)
Signal: No signal strength (0)
PS: Packet Switched Not registered (LE_MRC_REG_NONE)

root@swi-mdm9x28-wp:~# cm data connect
Setting up profile 1
Connecting … failed
Sun Jan 6 01:11:23 +01 1980 - Connection Failure: LE_FAULT
root@swi-mdm9x28-wp:~# cm raadio
Service ‘raadio’ does not exist.
root@swi-mdm9x28-wp:~# cm radio
Power: ON
Current Network Operator: Telekom.de
Current RAT: Module not registered on network, RAT not available
Status: Registration was denied, usually because of invalid access credentials (LE_MRC_REG_DENIED)
Signal: Strong signal strength (4)
PS: Packet Switched Not registered (LE_MRC_REG_NONE)

i think you better check by AT command first like

ati3
ati8
AT!selrat?
at!band?
AT!selciot?
AT+Cgdcont?
at!uims?
aT+cpin?
AT+COPS?
AT!gstatus?

To register dedicated operator, you need to use AT+COPS command by manual mode

BTW, what operator do you want to register? Does it support LTE CAT-M or NBIOT?