I can not get the em7455 to connect to t-mobile ,
I am using open wrt, with mbim , it works on Verizon , At&T and Sprint but will not connect to T-mobile.
I have other barnds of modoem that will connect.
Also the Sprint speed is only .3mb down
Any suggestions?
you should be using the PTCRB approved Generic PRI
https://source.sierrawireless.com/resources/airprime/minicard/74xx/airprime-em_mc74xx-approved-fw-packages/
check the PRI (configuration) with
at!priid?
this should read Generic.
to check attach state issue
at!gstatus?
So I updated the firmare to the latest generic version
at!priid?
PRI Part Number: 9904802
Revision: 001.001
Customer: Generic-Laptop
Carrier PRI: 9999999_9904609_SWI9X30C_02.30.01.01_00_GENERIC_002.045_001
at!gstatus?
!GSTATUS:
Current Time: 431 Temperature: 29
Reset Counter: 2 Mode: ONLINE
System mode: WCDMA PS state: Attached
WCDMA band: WCDMA 1900
WCDMA channel: 462
MM (CS) state: IDLE NORMAL SERVICE
WCDMA L1 state:L1M_PCH_SLEEP LAC: B46E (46190)
RRC state: DISCONNECTED UTRAN Cell ID: 04BA3E42 (79314498)
RxM RSSI C0: -70 RxD RSSI C0: —
RxM RSSI C1: — RxD RSSI C1: —
Here is what opnwrt syslog reports:
Thu Dec 20 08:34:46 2018 user.notice root: mbim SETUP
Thu Dec 20 08:34:46 2018 daemon.notice netifd: wwan (25562): mbim[25562] APN b2b.t-mobile.com
Thu Dec 20 08:34:46 2018 daemon.notice netifd: wwan (25562): mbim[25562] Reading capabilities
Thu Dec 20 08:34:46 2018 daemon.notice netifd: wwan (25562): sending (16): 01 00 00 00 10 00 00 00 01 00 00 00 00 10 00 00
Thu Dec 20 08:34:46 2018 daemon.info odhcpd[1130]: Using a RA lifetime of 0 seconds on br-lan
Thu Dec 20 08:34:49 2018 daemon.info dnsmasq[1761]: read /etc/hosts - 4 addresses
Thu Dec 20 08:34:49 2018 daemon.info dnsmasq[1761]: read /tmp/hosts/odhcpd - 1 addresses
Thu Dec 20 08:34:49 2018 daemon.info dnsmasq[1761]: read /tmp/hosts/dhcp.cfg01411c - 2 addresses
Thu Dec 20 08:34:49 2018 daemon.info dnsmasq-dhcp[1761]: read /etc/ethers - 0 addresses
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): sending (48): header_type: 0001
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): header_length: 0010
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): header_transaction: 0001
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): reading (16): 01 00 00 80 10 00 00 00 01 00 00 00 00 00 00 00
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): header_type: 80000001
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): header_length: 0010
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): header_transaction: 0001
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): 03 00 00 00 30 00 00 00 02 00 00 00 01 00 00 00 00 00 00 00 a2 89 cc 33 bc bb 8b 4f b6 b0 13 3e c2 aa e6 df 01 00 00 00 00 00 00 00 00 00 00 00
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): header_type: 0003
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): header_length: 0030
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): header_transaction: 0002
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): reading (200): 03 00 00 80 c8 00 00 00 02 00 00 00 01 00 00 00 00 00 00 00 a2 89 cc 33 bc bb 8b 4f b6 b0 13 3e c2 aa e6 df 01 00 00 00 00 00 00 00 98 00 00 00 03 00 00 00 01 00 00 00 01 00 00 00 02 00 00 00 3c 00 00 00 03 00 00 00 01 00 00 00 08 00 00 00 00 00 00 00 00 00 00 00 40 00 00 00 1e 00 00 00 60 00 00 00 28 00 00 00 88 00 00 00 0e 00 00 00 33 00 35 00 33 00 39 00 39 00 31 00 30 00 37 00 30 00 35 00 37 00 38 00 38 00 32 00 31 00 00 00 53 00 57 00 49 00 39 00 58 00 33 00 30 00 43 00 5f 00 30 00 32 00 2e 00 33 00 30 00 2e 00 30 00 31 00 2e 00 30 00 31 00 45 00 4d 00 37 00 34 00 35 00 35 00 42 00 00 00
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): header_type: 80000003
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): header_length: 00C8
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): header_transaction: 0002
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): command_id: 0001
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): status_code: 0000
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): devicetype: 0003 - remote
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): cellularclass: 0001
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): voiceclass: 0001 - no-voice
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): simclass: 0002
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): dataclass: 003C
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): smscaps: 0003
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): controlcaps: 0001
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): maxsessions: 0008
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): deviceid: 353991070578821
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): firmwareinfo: SWI9X30C_02.30.01.01
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): hardwareinfo: EM7455B
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): mbim[25562] Checking subscriber
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): sending (48): 03 00 00 00 30 00 00 00 03 00 00 00 01 00 00 00 00 00 00 00 a2 89 cc 33 bc bb 8b 4f b6 b0 13 3e c2 aa e6 df 02 00 00 00 00 00 00 00 00 00 00 00
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): header_type: 0003
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): header_length: 0030
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): header_transaction: 0003
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): reading (180): 03 00 00 80 b4 00 00 00 03 00 00 00 01 00 00 00 00 00 00 00 a2 89 cc 33 bc bb 8b 4f b6 b0 13 3e c2 aa e6 df 02 00 00 00 00 00 00 00 84 00 00 00 01 00 00 00 3c 00 00 00 1e 00 00 00 5c 00 00 00 26 00 00 00 00 00 00 00 01 00 00 00 24 00 00 00 16 00 00 00 31 00 35 00 37 00 31 00 32 00 37 00 34 00 39 00 37 00 39 00 37 00 00 00 33 00 31 00 30 00 32 00 36 00 30 00 35 00 39 00 35 00 35 00 32 00 37 00 38 00 38 00 36 00 00 00 38 00 39 00 30 00 31 00 32 00 36 00 30 00 35 00 39 00 31 00 37 00 35 00 35 00 32 00 37 00 38 00 38 00 36 00 32 00 00 00
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): header_type: 80000003
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): header_length: 00B4
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): header_transaction: 0003
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): command_id: 0002
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): status_code: 0000
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): readystate: 0001 - initialized
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): simiccid: 89012605917552xxxxxxxx
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): subscriberid: 310260595xxxxxxxx
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): number: xxxxxxxxxxxxxxx
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): mbim[25562] Register with network
Thu Dec 20 08:34:49 2018 daemon.notice netifd: wwan (25562): sending (48): 03 00 00 00 30 00 00 00 04 00 00 00 01 00 00 00 00 00 00 00 a2 89 cc 33 bc bb 8b 4f b6 b0 13 3e c2 aa e6 df 09 00 00 00 00 00 00 00 00 00 00 00
Thu Dec 20 08:35:04 2018 daemon.notice netifd: wwan (25562): ERROR: mbim message timeout
Thu Dec 20 08:35:04 2018 daemon.notice netifd: wwan (25562): header_type: 0003
Thu Dec 20 08:35:04 2018 daemon.notice netifd: wwan (25562): header_length: 0030
Thu Dec 20 08:35:04 2018 daemon.notice netifd: wwan (25562): header_transaction: 0004
Thu Dec 20 08:35:04 2018 daemon.notice netifd: wwan (25562): reading (72): 07 00 00 80 48 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 a2 89 cc 33 bc bb 8b 4f b6 b0 13 3e c2 aa e6 df 0a 00 00 00 1c 00 00 00 00 00 00 00 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Thu Dec 20 08:35:04 2018 daemon.notice netifd: wwan (25562): header_type: 80000007
Thu Dec 20 08:35:04 2018 daemon.notice netifd: wwan (25562): header_length: 0048
Thu Dec 20 08:35:04 2018 daemon.notice netifd: wwan (25562): header_transaction: 0000
Thu Dec 20 08:35:04 2018 daemon.notice netifd: wwan (25562): reading (72): 07 00 00 80 48 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 a2 89 cc 33 bc bb 8b 4f b6 b0 13 3e c2 aa e6 df 0a 00 00 00 1c 00 00 00 00 00 00 00 02 00 00 00 18 00 00 00 b0 9d 57 00 00 00 00 00 c0 eb 83 02 00 00 00 00
Thu Dec 20 08:35:04 2018 daemon.notice netifd: wwan (25562): header_type: 80000007
Thu Dec 20 08:35:04 2018 daemon.notice netifd: wwan (25562): header_length: 0048
Thu Dec 20 08:35:04 2018 daemon.notice netifd: wwan (25562): header_transaction: 0000
Thu Dec 20 08:35:04 2018 user.notice root: MBIM register
Thu Dec 20 08:35:04 2018 daemon.notice netifd: wwan (25562): mbim[25562] Subscriber registration failed
Thu Dec 20 08:35:04 2018 user.notice root: mbim bringup failed, retry in 15s
Thanks
Are you sure that you have a valid service with TMO?
Is the APN correct?
The modem is attached to 3G but PDN connection is failing - this is when the APN is sent and verified on the NTWK side.
The modem should connect to LTE by default, most likely your APN is not registering on LTE either.
On LTE the modem performs a combined attach (attach + session ) so APN is verified during the attach procedure. It falls back to 3G attach is LTE combined attach is failing
The Sim is a valild Static IP wth TMobile , I removed the sim From an idential openwrt router that has a Huawei ME906V that will connect. I is using a PPP dialup on this test system however we use qmi as well.
I want to remove the ME906V and use the EM7455 in with the new openwrt build using MBIM, Howeve it will not connect wit the T-mobile SIM
Did you change the APN name in the ME7455 to mach the ME906V’s APN?
Yes it is the same SIM ,moved form one router to the other.
A working static IP sim from T-mobile
the APN for their static ip is “b2b.t-mobile.com”