Home Page Forums Raspberry Pi Shields Quectel EC25-AF MiniPCIe 4G/LTE with T-mobile SIM

This topic contains 12 replies, has 5 voices, and was last updated by  xmicks 2 weeks, 6 days ago.

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  • #37323

    monsiboney
    Participant

    Hi Saeed. Really, I need your help!!. Please.
    I have the Quectel EC25-AF over sixfab Mini PCle 3G,4G/LTE base shield and RPI3, I’m not able to connect to internet, I followed the steps of the tutorial of ppp connection, but I can’t see my ppp0 interface. This Quectel and sim works fine in my windows with a dongle and connect very fast to T-Mobile. I appreciate any help. Thanks a lot!!!

    [email protected]:~ $ sudo pon
    pppd options in effect:
    debug # (from /etc/ppp/peers/provider)
    updetach # (from /etc/ppp/peers/provider)
    dump # (from /etc/ppp/peers/provider)
    noauth # (from /etc/ppp/peers/provider)
    remotename 3gppp # (from /etc/ppp/peers/provider)
    /dev/ttyUSB3 # (from /etc/ppp/peers/provider)
    115200 # (from /etc/ppp/peers/provider)
    lock # (from /etc/ppp/peers/provider)
    connect chat -s -v -f /etc/chatscripts/chat-connect -T fast.t-mobile.com # (from /etc/ppp/peers/provider)
    disconnect chat -s -v -f /etc/chatscripts/chat-disconnect # (from /etc/ppp/peers/provider)
    nocrtscts # (from /etc/ppp/peers/provider)
    modem # (from /etc/ppp/peers/provider)
    asyncmap 0 # (from /etc/ppp/options)
    lcp-echo-failure 4 # (from /etc/ppp/options)
    lcp-echo-interval 30 # (from /etc/ppp/options)
    hide-password # (from /etc/ppp/peers/provider)
    novj # (from /etc/ppp/peers/provider)
    novjccomp # (from /etc/ppp/peers/provider)
    ipcp-accept-local # (from /etc/ppp/peers/provider)
    ipcp-accept-remote # (from /etc/ppp/peers/provider)
    ipparam 3gppp # (from /etc/ppp/peers/provider)
    noipdefault # (from /etc/ppp/peers/provider)
    ipcp-max-failure 30 # (from /etc/ppp/peers/provider)
    defaultroute # (from /etc/ppp/peers/provider)
    usepeerdns # (from /etc/ppp/peers/provider)
    noccp # (from /etc/ppp/peers/provider)
    noipx # (from /etc/ppp/options)
    abort on (BUSY)
    abort on (NO CARRIER)
    abort on (NO DIALTONE)
    abort on (ERROR)
    abort on (NO ANSWER)
    timeout set to 30 seconds
    send (AT^M)
    expect (OK)
    ^M
    OK
    — got it

    send (ATE0^M)
    expect (OK)
    ^M
    ^M
    OK
    — got it

    send (ATI;+CSUB;+CSQ;+COPS?;+CGREG?;&D2^M)
    expect (OK)
    ^M
    ^M
    Quectel^M
    EC25^M
    Revision: EC25AFFAR07A03M4G^M
    ^M
    SubEdition: V05^M
    ^M
    +CSQ: 27,99^M
    ^M
    +COPS: 0,0,”T-Mobile”,7^M
    ^M
    +CGREG: 0,1^M
    ^M
    OK
    — got it

    send (AT+CGDCONT=1,”IP”,”fast.t-mobile.com”,,0,0^M)
    expect (OK)
    ^M
    ^M
    OK
    — got it

    send (ATD*99#^M)
    expect (CONNECT)
    ^M
    ^M
    CONNECT
    — got it

    Script chat -s -v -f /etc/chatscripts/chat-connect -T fast.t-mobile.com finished (pid 2807), status = 0x0
    Serial connection established.
    using channel 2
    Using interface ppp0
    Connect: ppp0 <–> /dev/ttyUSB3
    sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xeffa23a> <pcomp> <accomp>]
    rcvd [LCP ConfReq id=0x3 <asyncmap 0x0> <auth chap MD5> <magic 0x1a2b010e> <pcomp> <accomp>]
    No auth is possible
    sent [LCP ConfRej id=0x3 <auth chap MD5>]
    rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0xeffa23a> <pcomp> <accomp>]
    rcvd [LCP ConfReq id=0x4 <asyncmap 0x0> <magic 0x1a2b010e> <pcomp> <accomp>]
    sent [LCP ConfAck id=0x4 <asyncmap 0x0> <magic 0x1a2b010e> <pcomp> <accomp>]
    sent [LCP EchoReq id=0x0 magic=0xeffa23a]
    sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
    rcvd [LCP DiscReq id=0x5 magic=0x1a2b010e]
    rcvd [LCP EchoRep id=0x0 magic=0x1a2b010e 0e ff a2 3a]
    Modem hangup
    Connection terminated.
    [email protected]:~ $ ifconfig ppp0
    ppp0: error fetching interface information: Device not found
    [email protected]:~ $

    #37352

    xmicks
    Participant

    I have the same issue. help needed. Did you solve it?

    #37366

    monsiboney
    Participant

    Hi
    Nop, seems to be T-Mobile look the RBPi chipset or something. I can connect to the tower but I can’t surf because I don’t get valid IPV6 address. I’m continue search.. if you solve or find something please, share.
    Thanks

    #37654

    Saeed
    Moderator

    Hi,

    Which power source are you using? Make sure the device is getting enough power. Raspberry pi original Power adapter is recommended.

    #37663

    Saeed
    Moderator

    Could you also check with Fast.t-mobile.com as APN? (source)

    #37744

    sixfab15
    Participant

    Jumping in here because I have the same issue, both ppp and qmi are not working on tmo with the AF modem.

    This repeats:
    [04-23_20:29:14:127] requestSetOperatingMode(1)
    [04-23_20:29:14:158] requestSetOperatingMode(0)
    [04-23_20:29:14:638] requestRegistrationState2 MCC: 0, MNC: 0, PS: Detached, DataCap: UNKNOW
    [04-23_20:29:14:894] requestRegistrationState2 MCC: 310, MNC: 260, PS: Detached, DataCap: UNKNOW
    [04-23_20:29:15:726] requestRegistrationState2 MCC: 310, MNC: 260, PS: Attached, DataCap: LTE
    [04-23_20:29:15:822] requestRegistrationState2 MCC: 310, MNC: 260, PS: Attached, DataCap: LTE
    [04-23_20:29:15:854] requestSetupDataCall QMUXResult = 0x1, QMUXError = 0xe
    [04-23_20:29:15:886] requestRegistrationState2 MCC: 310, MNC: 260, PS: Attached, DataCap: LTE
    [04-23_20:29:15:950] requestRegistrationState2 MCC: 310, MNC: 260, PS: Attached, DataCap: LTE
    [04-23_20:29:15:982] requestSetupDataCall QMUXResult = 0x1, QMUXError = 0xe
    [04-23_20:29:21:134] requestRegistrationState2 MCC: 310, MNC: 260, PS: Attached, DataCap: LTE
    [04-23_20:29:21:166] requestSetupDataCall QMUXResult = 0x1, QMUXError = 0xe

    Swapping with an EC25-A works fine and connects with an IP right away.

    #37762

    Saeed
    Moderator

    Hi, Does these repeat with EC25-A ?

    #37767

    sixfab15
    Participant

    No. If I put in the EC25-A the qmi script connects right away and returns with the IP.

    Could it be a bad modem?

    • This reply was modified 2 months ago by  sixfab15.
    #38367

    markk
    Participant

    I have two routers one ZBT with Qualcomm chipset and one with Mitek chipset both work rock solid with Quectel EC25-A MiniPCIe 4G/LTE with T-mobile SIM. But put in Quectel EC25-AF MiniPCIe 4G/LTE with T-mobile SIM and same problem. Any help would be appreciated.

    #38368

    xmicks
    Participant

    I had to disable Bluetooth and the serial Com. Though keep serial enabled.

    After the module can connect to the internet, I had to delete the default route and add a new one for the ppp0 interface.

    I use T-Mobile in the Netherlands with “smartsites.t-mobile” as apn.

    Mick

    #38373

    markk
    Participant

    Hi Mick,

    Do you have a copy of the commands?

    #38374

    xmicks
    Participant

    Not exactly but if you search for “rpi disable Bluetooth”, you will find a guide for that.

    Also, in raspi-config you can disable serial command line, after that you will be asked if you still want serial to be enabled, you will answer “yes”.

    #38375

    xmicks
    Participant

    And for the default route part see:

    EXTRA
    Route: One of the possible errors you may get is routing error. In this case, run the following commands

    sudo route del default

    sudo route add default ppp0

    From: https://sixfab.com/ppp-installer-for-sixfab-shield/

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