Emergency Calls Only When I Enable Data - Huawei Mate 10 Guides, News, & Discussion

I have a Huawei mate 10 lite, and when I enable data on sim slot 1 it will lose its signal and become emergency calls only. But when I enable data on sim 2 both works just fine. I just can't use data on sim 1.
Both are 3G sim cards, so I got a new 4G card and it worked for 2 days. And then 1 day it stopped. It says emergency calls only which every sim slot I use. I don't know what is going on.
Can someone please help?

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[Q] dual SIM question

Quick question for you dual SIM users.
Does the Moto G2 support 3G on both Sims?
I intend using two three SIM cards, but they only support 3G. So if SIM two is only working on 2G it would be no good to me.
Thanks
The data connection is for one sim only, you get to choose if you use data on sim one or two, data is automatically change sim, for example from 3g sim1/2g sim2 to 2g sim1/3g sim2
Thanks, I'm with you. So with my two three Sims there would be only one SIM on at any one time.
I have I signal SIM moto g1 now, and if I switch to 2g only the three SIM no longer works.
eemgee said:
Thanks, I'm with you. So with my two three Sims there would be only one SIM on at any one time.
I have I signal SIM moto g1 now, and if I switch to 2g only the three SIM no longer works.
Click to expand...
Click to collapse
Both Sim work at the same time while I'm using 3g in any Sim.
Data is available only for one Sim at a time, but the change is really fast and automatic when you select which Sim to use for data
I use mine with same carrier, it uses the 850mhz band.
Remember this phone is dualsim standby, it means if you're using voice in one Sim the other is unreachable.
fburgos said:
Both Sim work at the same time while I'm using 3g in any Sim.
Data is available only for one Sim at a time, but the change is really fast and automatic when you select which Sim to use for data
I use mine with same carrier, it uses the 850mhz band.
Remember this phone is dualsim standby, it means if you're using voice in one Sim the other is unreachable.
Click to expand...
Click to collapse
Yes just on most networks if you are on 2G the sim still works. On three they don't.
A three SIM won't work on 2G no calls text or anything.
So even with both sims in standby only one would receive calls, am I right?
Only way to receive calls on either SIM (from standby) on a moto g is if at least one SIM works on 2G?
eemgee said:
Yes just on most networks if you are on 2G the sim still works. On three they don't.
A three SIM won't work on 2G no calls text or anything.
So even with both sims in standby only one would receive calls, am I right?
Only way to receive calls on either SIM (from standby) on a moto g is if at least one SIM works on 2G?
Click to expand...
Click to collapse
I've own two dual sim phones s4mini (lost it) an this moto g 2014, both are stated as dual sim standby, I haven't notice any difference in the way they handle simcards/data/voice.
On both phones I've use same carrier/numbers, one is personal (same number for 10+ years) the other from work (same number for 5+ years).
I've never missed a call on either Sim.
Even if I'm downloading something I can receive calls and text messages on that sim the download stops but my phone core functionality is still a phone for both simcards with any combination of data in 2g/3g or 2g/2g.
I'm never going to carry two separated phones, for me is enough the dualisim standby functionality.
For you is a pain that your carrier don't support 2g network any dual sim standby won't work, you need a dual sim phone with two separate modems
fburgos said:
For you is a pain that your carrier don't support 2g network any dual sim standby won't work, you need a dual sim phone with two separate modems
Click to expand...
Click to collapse
Thanks for confirming that, only other thing I can do is use one SIM and activate call divert on the other number.
That's the main drawback with three only supporting 3G/4G

Network issues

Hello All,
I got OPO 3T before 2 weeks in India & I was using Jio 4G (VOLTE) and Vodafone as my mobile sim cards, both the sim cards were working properly for 10 days. i had to remove my vodafone sim from my mobile on day 10 due to my work schedules, and after rebooting the mobile the Jio sim network got vanished without any message or errors.
I had to travel to another country for my work where i had to change my sim cards, the new sim card which was inserted was working properly with data initially and i was using it for the whole day. I switched-off the data before i went to bed and to my surprise the sim card had the same problem "No service(Telikom)" when i checked it in the morning. I tried other network sim cards also but it is showing the same results, though the sim cards are working properly on other mobile phones.
In the Telikom sim i tried changing the APN settings as defined by the operator but without luck.
Any help would be appreciated. Thanks.
you need to set data on jio sim to get it working. if you change your data to another sim then jio network will be gone.

Dual Sim Issue

So I have my Verizon sim in tray 1 & my T-Mobile sim in tray 2. What I am trying to do is have the data push through the T-Mobile sim but still maintain calls and text coming in from Verizon sim. When I set Dial to sim 1 & Internet to sim 2 in the options it just shuts down the Verizon sim completely. What am I missing? Is what am trying to do not possible?
20 views and nada, come on someone has to have some input they can provide me lol
So I finally got the phone to keep both sims registered to their networks and my calls and sms work with it set to my Verizon sim but I can't get the data to push through on the T-Mobile sim!!!!! AHHHHHH
I think the Mi MIx only has 1 4G radio? So that if both SIM cards require 4G connection, only 1 can be connected at one time
I understand, this is exactly why I wanted this phone too! Where did you buy yours and how long till you received it?
No voice calls.
romors666 said:
So I finally got the phone to keep both sims registered to their networks and my calls and sms work with it set to my Verizon sim but I can't get the data to push through on the T-Mobile sim!!!!! AHHHHHH
Click to expand...
Click to collapse
Can you tell me what you did? I have data and sms going through fine but no calls.
Thank you.
Has any one resolved this issue?
I recently got a VZW SIM card, and everything works when it's the only SIM in the Mi MIX...but if I also put in my Project Fi SIM...I cannot send SMS via my Project Fi SIM--which carriers my main number...even though MMS also works on my Verizon SIM card......

Dual Sim Data Questions

Hi,
Got the note 9 since friday. working great. but i noticed that when i call on sim2, i can use mobile data of sim 1.
Default mobile data is from sim1. and phone calls are set to ask every time.
now my sim2 is my work number. during the working hours i call alot with this number.
my sim 1 is my private sub from t-mobile. and i mainly use the data plan of it. since i dont wanna use the internet that my boss pay's for for my personal use.
Now since i got this setup. what happends is. some one texts me a foto through whatsapp. and then calls me to sim2 before i can look / dowload the picture. then when i pickup the phone they ask me did u see the picture i sent you. i then open whatsapp. but i get the msg no network.
what i noticed is that when i call on sim1 i still have LTE data. (cause sim1 provides the data)
so it cant use data from sim 1 and voice from sim2 at the same time?
also is there a way to set certain apps to use data of a specific sim card?
lets say i open my 2nd whatsapp that it loads the images sent there from my sim2 network
but when i open my 1st whatsapp (2nd app cloning) it uses data from sim1?
or any other apps for exmp chrome and samsung internet?
is there any tweak that automates the switch data to sim2 as soon as i make a call with sim2?
now i can just click on the sim settings menu and change the default data to sim2 to receive data during the call. but when im driving in my car this are alot of buttons to press and i rather not.
i don't own N9 yet. read about dual sim technology varieties on the net, theoretically N9 should be able to get dual VOLTE feature on both SIMs (assuming it supported by carrier(s), and phone shows VOLTE icon on both SIMs). in the event you are making call on SIM 1 & trying to get data on SIM 2 or vice versa, this requires dual sims dual volte (DSDV) feature kicks in and liberates you to choose which SIM to get data from.
might really want to consult with your carrier(s) if both SIM support VOLTE.
Are you able to get VoLTE and WiFi calling to work on the international dual sim F variant of Note-9 on US T-mobile network?

Dual Sim issues, can't make calls on sim1 when sim2 is inserted

Hi,
I rebranded my VTR-L09 to L29 two years ago.
Since then I use the dual SIM functionality nearly every day at work.
SIM1 is my private card, SIM2 is my work card.
Both are in the same network (Vodafone DE) but different providers (SIM1 is 1und1 and SIM2 is Vodafone).
Since some days I'm not able to make calls with SIM1 when SIM2 is inserted.
When I try to make a call while SIM2 is active, the phone app switches automatically to SIM2 without asking.
When I disable SIM2 in Dual SIM settings, I get the message "Mobile network not available" (translated) when I try to make a call.
When SIM2 is removed I can make calls without any issues.
Internet (HSDPA+ and lower, LTE is not available in my contract) and receiving calls is still possible and without any issues even SIM2 is active.
In dual SIM settings the standard SIM for calls setting is disabled, but even if I set it to SIM1 the calls will go over SIM2.
I already called my provider and I will get a new sim card but I doubt that this is the issue.
Does anyone knows this and is there a fix for this?
I'm on C432 B376 by the way, and there's no update available for me, yet.
My phone is also rooted.
A factory reset would be very annoying since it takes extremely long time to back everything up.
Greetings,
Jannomag
I also have rebranded my VTR-L09 into VTR-L29, but I have no dual SIM issues. Build number 376 (C432). What happens if you swap the SIMs?
The same issue, but inverted. The phone switches to my companies sim card automatically.
Is it possible that the network provider block this standby dual sim thingy?
I received my new sim card but it still doesn't work.
A few days ago I installed Google's phone apk as a second phone app for my second sim, because I wanted to seperate my private and companies contact lists. This didn't worked as I expected and I completely removed it and deleted cache and dalvik via TWRP.
Maybe the issue was produced by this, but how do I remove it?
It sounds like a plausible explanation. If that is the case, I am afraid the only thing that will help is a factory reset, unless you figure out what changes were made by the google phone app.
I did a factory reset...took about 5 hours to get everything like it was before.
Even with TB some apps don't work good (WhatsApp for example, needed to reinstall it...but somehow the backup from yesterday was gone, so I got a throwback to last week).
Now I can make calls again as usual. Strange behavior...
It looks that google dialer apk messed something in your phone. good to hear,that all is ok now.
I am also rebranded VTR-L09 to VTR-L29 year ago. I am on C432 B379.
both SIMs are on Vodafone network and everything works as it should (SIM1 - private+data enabled, SIM2 - work+data disabled).
I am on stock firmware, no root, stock dialer. @Jannomag : 5 hours?Really? I made factory reset two months ago (backup trough huawei backup) and it was matte rof 1 hour. Of course i have to sign in to FB,Whatsap,instagram...

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