# SIM signalling **URL:** \ **Category:** RC76\ **Created:** [April 24, 2023, 8:41am UTC](https://forum.sierrawireless.com/t/sim-signalling/29588 "2023-04-24T08:41:36Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![saim](https://avatars.discourse-cdn.com/v4/letter/s/c57346/32.png) [@saim](https://forum.sierrawireless.com/u/saim)\ **Post date:** [April 24, 2023, 8:41am UTC](https://forum.sierrawireless.com/t/sim-signalling/29588/1 "2023-04-24T08:41:36Z")
Hi, Has anyone tried to enable SIM status indication with libqmi APIs? I have RC76xx modem and when I try to enable signalling related to data connection status, the modem sends signals properly, but when I enable signalling similar way for SIM status changes, I don’t get any signal from the modem. I am wondering if there is any setting required in the modem to get signals about SIM status …like ‘locked’, ‘unlocked’, etc… ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [April 24, 2023, 9:04am UTC](https://forum.sierrawireless.com/t/sim-signalling/29588/2 "2023-04-24T09:04:36Z")
how about " --uim-get-card-status"? > [@EM7565 Dual SIM visibility](https://forum.sierrawireless.com/t/em7565-dual-sim-visibility/12311): > > Hi I have an EM7565 with 2 SIM cards connected tot he modem. In the initial configuration of the modem with the firmware ‘01.00.02.00\_GENERIC’ as it was delivered by Sierra, I was able to see the 2 SIM cards with : qmicli -d /dev/cdc-wdm0 --uim-get-card-status qmicli -d /dev/cdc-wdm0 --uim-get-card-status [/dev/cdc-wdm0] Successfully got card status Provisioning applications: Primary GW: slot ‘0’, application ‘0’ Primary 1X: session doesn’t exist Secondary GW: slot ‘1’, application ‘… ---
**Author:** ![saim](https://avatars.discourse-cdn.com/v4/letter/s/c57346/32.png) [@saim](https://forum.sierrawireless.com/u/saim)\ **Post date:** [April 24, 2023, 9:19am UTC](https://forum.sierrawireless.com/t/sim-signalling/29588/3 "2023-04-24T09:19:29Z")
If I query explicitly, it works fine. I get the correct status. But if, for example, someone inserts another SIM when the device is still powered ON, I would like the updates automatically. For this the libqmi (not QMICLI), has signalling options. But not sure if there are some settings required in the modem to be able to generate the signals. I think, libqmi cannot do much if signals are not received from the modem. ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [April 24, 2023, 9:21am UTC](https://forum.sierrawireless.com/t/sim-signalling/29588/4 "2023-04-24T09:21:22Z")
how about using AT command AT+KSIMDET=1 for receive the notification +SIM? ---
**Author:** ![saim](https://avatars.discourse-cdn.com/v4/letter/s/c57346/32.png) [@saim](https://forum.sierrawireless.com/u/saim)\ **Post date:** [April 24, 2023, 9:21am UTC](https://forum.sierrawireless.com/t/sim-signalling/29588/5 "2023-04-24T09:21:53Z")
I mean the following doesn’t seem to work, when used for RC76xx: [https://www.freedesktop.org/software/libqmi/libqmi-glib/1.30.8/libqmi-glib-UIM-Card-Status-indication.html](https://www.freedesktop.org/software/libqmi/libqmi-glib/1.30.8/libqmi-glib-UIM-Card-Status-indication.html) while, this works as expected. I get signals from modem if network goes off (poor signal condition for example) [https://www.freedesktop.org/software/libqmi/libqmi-glib/1.30.8/QmiClientWds.html#QmiClientWds-packet-service-status](https://www.freedesktop.org/software/libqmi/libqmi-glib/1.30.8/QmiClientWds.html#QmiClientWds-packet-service-status) ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [April 24, 2023, 9:28am UTC](https://forum.sierrawireless.com/t/sim-signalling/29588/6 "2023-04-24T09:28:38Z")
how about using AT command AT+KSIMDET=1 for receive the notification +SIM? You can also check the sample application \SampleApps\lite-qmi-uim in MBPL, I saw there is PrintUimEventsRegisterOption() ---
**Author:** ![saim](https://avatars.discourse-cdn.com/v4/letter/s/c57346/32.png) [@saim](https://forum.sierrawireless.com/u/saim)\ **Post date:** [April 24, 2023, 9:47am UTC](https://forum.sierrawireless.com/t/sim-signalling/29588/7 "2023-04-24T09:47:34Z")
I have not tried AT+KSIMDET=1, where do these notifications come? on UART or USB? ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [April 24, 2023, 9:55am UTC](https://forum.sierrawireless.com/t/sim-signalling/29588/8 "2023-04-24T09:55:33Z")
You can give a try… BTW, what port are you using ? UART or USB? ---
**Author:** ![saim](https://avatars.discourse-cdn.com/v4/letter/s/c57346/32.png) [@saim](https://forum.sierrawireless.com/u/saim)\ **Post date:** [April 24, 2023, 10:25am UTC](https://forum.sierrawireless.com/t/sim-signalling/29588/9 "2023-04-24T10:25:17Z")
ttyUSB for the AT commands. On the USB, I dont seem to get any notifications: at at OK at+ksimdet? at+ksimdet? +KSIMDET: 1 OK at+cpin? at+cpin? +CPIN: SIM PIN OK at+cpin=“1234” at+cpin=“1234” OK at+cpin? at+cpin? +CPIN: READY OK ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\ **Post date:** [April 24, 2023, 10:40am UTC](https://forum.sierrawireless.com/t/sim-signalling/29588/10 "2023-04-24T10:40:54Z")
How about you remove the sim card from the sim slot? Do you see notification?