Calyx sprint to T-Mobile. I'm about to lose my mind

[coltfreeman]

For the life of me I cannot get this system to reliably stay connected. It was fine under Sprint but now that I'm on T-Mobile I cannot seem to keep it working appropriately. The majority of time it says deauthorized, sometimes it works I have no idea why it's working during those times but it still has difficultly.

Code: Select all

. AT+COPS=?
+COPS: (1,"311 490","311 490","311490",7),(1,"U.S.Cellular","USCC","311580",7),(1,"Sprint","Sprint","310120",7),(1,"311 882","311 882","311882",7),(1,"Verizon","Verizon","311480",7),(1,"312 530","312 530","312530",7),(1,"313 100","313 100","313100",7),(1,"AT&T","AT&T","310410",7),(1,"311 589","311 589","311589",7),(1,"311 588","311 588","311588",7),,(0,1,2,3,4),(0,1,2)

OK

at+cops?
+COPS: 0

OK
  

AT!gstatus?
!GSTATUS: 
Current Time:  1287		Temperature: 38
Reset Counter: 1		Mode:        ONLINE         
System mode:   LTE        	PS state:    Not attached 
LTE band:      B26    		LTE bw:      5 MHz   
LTE Rx chan:   8763		LTE Tx chan: 26763
LTE CA state:  NOT ASSIGNED
EMM state:     Deregistered   	Attaching      
RRC state:     RRC Idle       
IMS reg state: No Srv  		

PCC RxM RSSI:  -102		RSRP (dBm):  -140
PCC RxD RSSI:  -75		RSRP (dBm):  -100
Tx Power:      0		TAC:         5443 (21571)
RSRQ (dB):     -11.4		Cell ID:     0FE4B819 (266647577)
SINR (dB):      5.6


OK

ATI
Manufacturer: Sierra Wireless, Incorporated
Model: MC7455
Revision: SWI9X30C_02.24.05.06 r7040 CARMD-EV-FRMWR2 2017/05/19 06:23:09
MEID: 35907206275916
IMEI: 355300475461682
IMEI SV: 12
FSN: LQ831609810410
+GCAP: +CGSM


OK

ATI8
Manufacturer: Sierra Wireless, Incorporated
Model: MC7455
Revision: SWI9X30C_02.24.05.06 r7040 CARMD-EV-FRMWR2 2017/05/19 06:23:09
MEID: 35907206275916
IMEI: 355300475461682
IMEI SV: 12
FSN: LQ831609810410
+GCAP: +CGSM


OK

 AT!SELRAT?
!SELRAT: 00, Automatic


OK

 AT!SELCIOT?
ERROR


 AT+CGDCONT?
+CGDCONT: 1,"IP","fast.t-mobile.com","0.0.0.0",0,0,0,0

OK

at!usbcomp?
ERROR

at!priid?
PRI Part Number: 9907458
Revision: 001.000
Customer: Generic-M2M

Carrier PRI: 9999999_9904609_SWI9X30C_02.24.05.06_00_GENERIC_002.026_000

OK


at+cpin?
+CPIN: READY

OK


 at+cimi
310260285936594

OK

 AT+CNUM
+CNUM: ,"14107100444",129


OK
 
at+ceer
+CEER: No cause information available

OK

[Didneywhorl]

SELRAT=6 if I recall is LTE only. I would set it to that.

You have to enter AT!ENTERCND="A710" before AT!USBCOMP? will work.

Make sure its in MBIM (My preference)

PS State: Not Attached means your not being allowed onto the network.

Make sure your SIM card isn't worn out, wouldn't hurt to get a new card just in case.

You MIGHT need to change the modems identity to a hotspot registered to the SIM. The old Sprint Generic firmware trick may not be good enough anymore.

[Jaybuds]

I have the same problem with the new Tmobile sim except I can never connect. Im too dumb to get the python program running correctly but maybe you can. For Tmobile the IMEI needs to match the sim in order for the tower to allow access to the network, atleast in my case and I have called Tmobile and Mobile Citizens, they both confirm the IMEI confirmation.