M35 Hot Swap problems

IoT Modules GSM Module
1

Hello

I have an device (gsm modem pool 64ports) that has Quectel M35 modules inside

It says it has M35AR01A36 Firmware version and Revision: MTK 0828

I have problems with HOT SWAP function, Im not sure why its not working

I turn on device with SIMS inserted, All sims connect OK to network
If I remove SIMs … Wait some time, and insert sims again, It wont connect until I restart modules (power off-on or using AT+CFUN)

I have another identically device, same modules/firmware and it works perfectly, I can replace sims, they re-connect every time without intervention.

I need help

Thank you

2

Try this command AT+QSIMDET=1,0 please.

3

And AT+QSIMSTAT=1

4

I received OK on both commands.
I removed actual SIM card, and put another SIM after few seconds.

I got these 2 messages, and not connecting.
+CPIN: NOT READY
+QSIMSTAT: 1,0

5

Hot-swap function takes effect after the module is restarted.

6

That means SIM card is removed.