Community

stromulous

Hello forums! I'm an American based in Taipei, and I just got a shiny-new F8132 (Dual-SIM) a couple weeks ago... but I'm having some problems with the dual-SIM feature.

Sony devices seem to have this odd habbit of forcing a restart whenvever the SIM is swapped... which is sort of OK for single-SIM phones - but for a Dual-SIM phone, that's nuts. Whenever I want to change SIMs, or change from SIM 1 to SIM 2 for mobile data, I'm forced to reboot. This completely defeats the point of dual-sim.

This isn't a requirement of Android, or of Qualcom's modems. Asus Dual-SIM devices with Qualcom modems switch just fine - without a reboot. Is there some way to disable the auto rebooting during a SIM switch? Otherwise, there is no point in supporting Dual-SIM in the first place.

If there isn't a way to disable this currently, could you guys fix this in an update?

Christofer

Sorry for the late reply.

If you are unable to access the notification menu when this happens you will not be able to access the bug report once it has been created. If you can send me the IMEI of your device in a PM I will forward this for investigation.

stromulous

Sent. I eagerly await a response.

Christofer

Thanks! I have no new information yet but I will let you know as soon as I do.

Kekeface

Is this really an issue?

Many Sony phones are waterproof, imagine changing sims with wet hands or in a humid environment.

The restart is also functioning as a precautionary measure against frying the motherboard

stromulous

Yes - this is the dual-SIM version of the phone. It supports two SIMs at once, and you're supposed to be able to move between them quickly with software - without taking apart your phone. Unfortuantely, there seems to be a glitch causing mine to reboot instead of move between them. The feature seems to be broken.

talo1019

Happening on my phone as well. LTE signal on the phone is no good compared to 3G.

Christofer

Hi @Supedajue,

This restart happens when you have two SIM cards that need different configurations.

The active configuration is chosen based on the SIM card being used. Among the configuration items are the modem parameters, that make sure the connection works well with the current SIM. The parameters require a restart for changes to take effect. When the data connection is moved to a SIM card requiring different settings, the device restarts to change them.

talo1019

@Christofer

I appreciate the explanation. But the reason to restart for dual sim phones I can accept for phones from 2013. But most new phones starting in 2015 don't need to restart.

I've had a Samsung Galaxy s7, Xiamo Mi 5, even Asus Zenfone 3 and they dont' require any restart when inserting and re-inserting sim cards.