SIM2 uses data without permission - Samsung Galaxy S9+ Questions & Answers

I have android 9 on S9+ exynos with two sims
I have SIM1 dedicated for mobile data and SIM2 for calls.
Although I am not using data at all, I got charged for data usage using SIM2
-I disabled auto retrieve of mms messages
-I removed access points of SIM2
-I am setting SIM1 as default for mobile data
-I even have data saver on with no single app allowed for background data usage
-I also reviewed data usage of SIM2, and disabled background data usage of these apps (as shown in image number 4)
However problem still exist, it drives me crazy , I don't know what to do to stop SIM2 from using mobile data.
Take a look at attached screenshots please

Edit
If you are facing the same issue then change the network of sim2
from: auto connect LTE/3G/2G
to : 3G only or 2G only
that's it and problem will be solved

Related

[Q] DUAL SIM Problem - Lenovo S750 MTK6589

Hello everybody
I've checked forum to find a solution for my problem, but whitout succes.
Now I using LENOVO S750 Dual SIM, with standard Android 4.2.1.
SIM1(3G) - just data for the internet, skype, VoIP, etc.
SIM2(2G) - just voice calls and text.
My problem is like that:
When I'm using my phone for internet (skype, YT, data exchange) nobody can call to me on second SIM2 card number (it says out of range or phone switch off) even I have full range on both signal indicator's (3G not important but 2G is 100% range).
When I turn off the data on the SIM1 or turn on WiFI to use internet on the phone everything is OK (voice phone number on SIM2 works perfectly)
I try to change lot of settings but the problem still exist, It looks like I don't have active SIM2 card while SIM1 makes data exchange.
When I make normal phone call by SIM2, data exchange on SIM1 is switching off.
Before I do not remember that kind of problem on my phone.
Please anyone knows a solution for this??
And sorry for my english
UPDATE:
- when I turn off automatic data synchronization( settings, data use, auto sync.) everything works perfectlty, but the Gmail and any other online apps, need hand made sync, so it's just a partial soultion, any suggest??
Why data on SIM1 turn's off the SIM2 voice service??
Nobody helps??

How to remove sign from statusbar

Hello guys,
See attached screenshot and tell me how to remove marked sign from sim2 signal bar
I changed data from sim1 to sim2 & then swap again and after that this sign comes.
I tried my best but cant.
Please help.
You cannot remove that. "X" shows up when mobile data is disabled in nougat.
However you could set default data to sim 1 and turn on sim 2 data.

Dual SIM SIM1 personal with calls/data and SIM2 for work with calls/data

I have dual sim phone - SIM1 personal with calls/data and SIM2 for work with calls/data. The phone forces me to define one of the two SIM cards as default for data (aka browse the web). The problem is that if I define SIM1 as default data card, if I receive or make a call from SIM1 I can browse the web using data during the call, but if I make or receive a call with SIM2, during the call I can't browse the web (because it is dual standby). In settings menu I tried to change the default data SIM card during the call to SIM2 to continue browsing the web during the call with SIM2, but the phone tells me that" Can't change the default data card during the call". The problem is the same if I define the default data card to SIM2, so during a call with SIM1 I can't browse the web. So, resuming, the annoying thing is that I have a dual SIM phone and I have 2 SIM card both with calls and data plan, the phone forces me to define one of them as default to data, but during a call with the SIM that is not defined as default data card I can't use the web. If at least I could change, in settings menu, the default data SIM during the call it will solve my problem but the phone doesn't allow me to do that during the call. This is ridiculous!! The only chance is, if I need to access the internet during the call, to say "I will shut down this call to swipe my default SIM card to access the internet so I can talk to you while I can browse the web and read the email that you are refering to and call you again", this all in 2019, simply ridiculous.
Anyone can help me? I tried in some phones of some of my friends and it always happens the same (I tried in Asus Zenfone 3, Samsung S9, Xiaomi Mi9T). Please if anyone can help me because this behaviour makes no sense and makes dual sim completely useless nowadays.

Network data not registered (but it does connect)

My network data can connect to 4g so phone calls and MMS, but the symbol shows no data, yet when I load webpages there is data transmitting. When on wifi the symbol changes to service data enabled, it seems to have glitched when off wifi. Have done hard reset of mobile data, used another Sim and my Sim works fine in other phones, only this Sim in my phone (some sort of Sim setting error?) How can I reset this? There is no data limits on the Sim, but it seems like it's incorrectly set, running pixelexperience

Question S23U - data e-sim for traveling

Hi. I need some help when using the S918B/DS with a combination of a standard sim (voice/text/data) and an e-sim (data only). The e-sim is intended for use in the US while traveling, bought using an e-sim app. I've setup the phone to use physical sim 1 for calls and sms and the e-sim for data. An APN is provided for the e-sim which must also be used. Roaming is also enabled.
Initially the setup works out with both sim/e-sim appearing in roaming mode and the e-sim also with 4G icon using T-Mobile. However, when I turn mobile data usage off (to save data and battery) then later re-engage data then I am not able to gain access to data. The icons show (both) of the carriers in roaming mode and that's it. The only way to reengage data seems to be: go to manual network selection for the e-sim, disconnect from current carrier (T-Mobile), select a different carrier such as Verizon (where there is no access granted) and then re-connect back with T-Mobile. This must be done with data enabled, otherwise I still don't get any data access. This works but also means that I need to have data/4G on all the time and can not use it only when needed. Is there's anything I'm doing wrong or there are some settings which can be tweaked to bring back data without disconnecting/reconnecting for the esim ?
mrabcx said:
Hi. I need some help when using the S918B/DS with a combination of a standard sim (voice/text/data) and an e-sim (data only). The e-sim is intended for use in the US while traveling, bought using an e-sim app. I've setup the phone to use physical sim 1 for calls and sms and the e-sim for data. An APN is provided for the e-sim which must also be used. Roaming is also enabled.
Initially the setup works out with both sim/e-sim appearing in roaming mode and the e-sim also with 4G icon using T-Mobile. However, when I turn mobile data usage off (to save data and battery) then later re-engage data then I am not able to gain access to data. The icons show (both) of the carriers in roaming mode and that's it. The only way to reengage data seems to be: go to manual network selection for the e-sim, disconnect from current carrier (T-Mobile), select a different carrier such as Verizon (where there is no access granted) and then re-connect back with T-Mobile. This must be done with data enabled, otherwise I still don't get any data access. This works but also means that I need to have data/4G on all the time and can not use it only when needed. Is there's anything I'm doing wrong or there are some settings which can be tweaked to bring back data without disconnecting/reconnecting for the esim ?
Click to expand...
Click to collapse
If you want to save battery while travelling, instead of disabling data, you might want to set your physical sim to 3G/2G mode only (since it only for a call). And just turn of slot 2 (eSIM) when not used. Or try to disable VoLTE on the eSIM.
Or just airplane it altogether if you doesnt really intend to receive a call anyway. (I normally do it during travelling, i only use my phone to snap picture in certain area, using wifi when in resto, cafe or shopping area, and then turning off airplane only when i need to navigate using map)

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