topic Re: Phone loses network connection. in XZ Series

Phone loses network connection.

Kebuda — Fri, 11 May 2018 07:11:25 GMT

I have 2 sim cards in my xperia xz1. The first one is for voice call and sms and the second one is for internet. Sim cards are from different cellular operators. In the same place first cards often loses network connection. If first sim loses connection the second sim loses connection too in the same time. If I disable first sim the second one works stably. If I remove the second sim the first one works unstable. The first sim works stable in other places. The first sim doesn't lose connection in my old mobile phone. How can I solve the problem?

Re: Phone loses network connection.

Lord_viridis — Fri, 11 May 2018 07:35:32 GMT

Is this in a single specific area?

Re: Phone loses network connection.

Lord_viridis — Fri, 11 May 2018 07:36:32 GMT

Can you swap the Sims in their slots and see if the same occurs

Re: Phone loses network connection.

Kebuda — Fri, 11 May 2018 08:40:00 GMT

@Viridiswrote:
Is this in a single specific area?

Yes, I think so.

>> Can you swap the Sims in their slots and see if the same occurs

Unfortunatelly, it doesn't help.

Re: Phone loses network connection.

Kebuda — Fri, 25 May 2018 08:31:59 GMT

Upd

I made a bug report (settings->system->developer options->take bug report). There are messages like:

Fatal error on the modem.
Modem subsystem failure reason: lte_ml1_rfmgr_stm.c: 8240:assert false failed: cc_id=0 shared_lna_cc_mask=0x0 s.
Subsys-restart: subsystem_restart_dev(): restart sequence requested for modem, restart level=related.