60 AIR720用联通SIM卡不能GPRS附着

AIR720之前使用联通卡可正常使用,这两天AT+CGATT? 查返回一直是+CGATT: 0  附着不了。但是换移动卡可已正常使用。这是什么问题?

是联通把2G关了吗?使用AT*BAND?查询返回*BAND:15,10,129,480,133,0,2,0  是处于4G网络优先模式。AT*BANDIND? 查询返回 *BANDIND: 0, 0, 2


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1 个回答

jldzy

使用联通SIM卡会不断重启,信息如下:

[2019-06-04 12:14:01.521]
UART Boot Completed


[2019-06-04 12:14:04.130]
RDY


[2019-06-04 12:14:06.411]

89860118801282724617

^SIMST: 0


[2019-06-04 12:14:06.754]

+CPIN: READY

^SIMST: 1


[2019-06-04 12:14:07.004]

+MSTK: 11, D074010301250002028182050F80005500530049004D53615E9475280F0A01807CBE54C163A883500F0A02806C83901A884C8BC10F0C0380624B673A84254E1A53850F0804806C8353C280030F0A0580727960E0793C53050F0806806C8377E597F30F0807806C8373AF74030F0808806C835A314E50


[2019-06-04 12:14:07.332]

+MSTK: 14

+CPIN: READY

^SIMST: 1


[2019-06-04 12:14:10.597]

SMS READY


[2019-06-04 12:14:10.800]

+CGEV: ME DETACH


[2019-06-04 12:14:16.096]
 

[2019-06-04 12:14:26.484]
UART Boot Completed


[2019-06-04 12:14:29.093]
RDY


[2019-06-04 12:14:31.389]

89860118801282724617

^SIMST: 0


[2019-06-04 12:14:31.733]

+CPIN: READY

^SIMST: 1


[2019-06-04 12:14:31.983]

+MSTK: 11, D074010301250002028182050F80005500530049004D53615E9475280F0A01807CBE54C163A883500F0A02806C83901A884C8BC10F0C0380624B673A84254E1A53850F0804806C8353C280030F0A0580727960E0793C53050F0806806C8377E597F30F0807806C8373AF74030F0808806C835A314E50


[2019-06-04 12:14:32.279]

+MSTK: 14

+CPIN: READY

^SIMST: 1


[2019-06-04 12:14:35.513]
SMS READY


[2019-06-04 12:14:35.716]

+CGEV: ME DETACH


[2019-06-04 12:14:40.824]
 

[2019-06-04 12:14:51.212]
UART Boot Completed


[2019-06-04 12:14:53.821]
RDY

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  • 提出于 2019-05-07 18:16

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