does a3 dual sim do 4g+3g? - Samsung Galaxy A3, A5, A7 (2017) Questions & Answe

Does anyone know if the dual sim version of a3 does 4g+3g at the same time? or only 4g+2g? Apparently the a5 and a7 have been confirmed capable of this but a3 is never mentioned
Thanks

Hello,
I just checked, by default, mine is configured for 4G+2G, but i can choose 4G+3G or 3G+4G

Misutsu said:
Hello,
I just checked, by default, mine is configured for 4G+2G, but i can choose 4G+3G or 3G+4G
Click to expand...
Click to collapse
How? My a5 2017 is dual sim and when i set sim2 to Lte/3g/2g, sim1 changes to 2g. When i set sim 1 yo that sim2 changes to 2g only.

Nomado said:
How? My a5 2017 is dual sim and when i set sim2 to Lte/3g/2g, sim1 changes to 2g. When i set sim 1 yo that sim2 changes to 2g only.
Click to expand...
Click to collapse
First, for the second SIM, i choosed 3G/2G over 2G by default. Then, when i switch, the second SIM always stays in 3G/2G

Related

dual sim standby - both 3g/4g ?

So I've read in a few reviews it's a dual sim standby (both sims are in standby for a phone call) and both of them are capable of 3g/4g at the same time?
anyone know?
reason I ask is in my country the 2g bands are closed so can't use any other dual sim phone (all of them force second sim to be on 2g)
I don't think both of them are capable of 4G for the simple reason 2 SIM from 2 different network providers = 2 IP address, and you need to know it's complex to make usable 2 IP address in the same time (MPTCP).
Then like on the OnePlus 2, you can only use one SIM for data and the other for phone calls/SMS/MMS in the same time.
The only phone that I am aware that is able to do 4g on one sim and 3g on the other is the mi5.
I am also keen to know if we can do the same on the one plus 3. I live in Singapore and 2g will be deactivated soon.
Sent from my X9009 using XDA-Developers mobile app
I'm not expecting the phone to use data on both. i'm more concerend about just being on standby for phone/msg on 3g (or 4 if possible). Like using your phone blocking data on the second sim. I don't see why it's so technologically hard. 2g is soon to be gone evrywhere
I have tested Mi5Pro and it have first sim 2G/3G/4G and the second sim 2G/3G simultaneously (dual sim stand-by).
I have read in a review than OP3 also. I will receive mine next monday, i will test ...
thanks a lot. anyone else can confirm ?
I can confirm .. i have received my op3 yesteday and it is 2G/3G/4G on sim1 and 2G/3G on sim2 simultaneously. Sim2 is only for calls and messages.
Like OP2 and other phones, it is possible to swap sims and in this case, sim2 is 2G/3G/4G with data and sim1 only 2G/3G for calls and messages.
I confirm also that op3 is dual sim stand-by and not dual sim active.
Le_Matriciel said:
I can confirm .. i have received my op3 yesteday and it is 2G/3G/4G on sim1 and 2G/3G on sim2 simultaneously. Sim2 is only for calls and messages.
Like OP2 and other phones, it is possible to swap sims and in this case, sim2 is 2G/3G/4G with data and sim1 only 2G/3G for calls and messages.
I confirm also that op3 is dual sim stand-by and not dual sim active.
Click to expand...
Click to collapse
So your SIM 1 is on 4G/LTE and SIM 2 can receive calls and text in 3G mode?
Yes but when call is made on SIM2, data on SIM1 is interrupted (dual stand-by)
Le_Matriciel said:
Yes but when call is made on SIM2, data on SIM1 is interrupted (dual stand-by)
Click to expand...
Click to collapse
Is this by design? That seems like a very frustrating limitation. I would be okay with data services flipping over to SIM2 while on the phone there.
I also seem to have a problem of the OP3 kicking down from LTE to HSPA when I make a phone call.
Any ideas?
appletalk said:
Is this by design? That seems like a very frustrating limitation. I would be okay with data services flipping over to SIM2 while on the phone there.
I also seem to have a problem of the OP3 kicking down from LTE to HSPA when I make a phone call.
Any ideas?
Click to expand...
Click to collapse
Yes, it is designed like this, like all dual sim except Asus ZenFone 2, Galaxy S4 Duo and few other models.
LTE networks has not "phone circuits" and call are made in 3G (phone connect in HSPA during call). This is for all LTE phones.
LTE calls are possible with VoLTE protocol witch is IP voice communications and not voice circuit.
For using VoLTE, the phone need compatible with this protocol AND operators needs to activate this functionality.
Le_Matriciel said:
Yes but when call is made on SIM2, data on SIM1 is interrupted (dual stand-by)
Click to expand...
Click to collapse
While you are using data on SIM1, will an incoming call on SIM2 ring on the phone or will the call be treated as though the phone is off-network and be directed to voicemail?
rickhuizinga said:
While you are using data on SIM1, will an incoming call on SIM2 ring on the phone or will the call be treated as though the phone is off-network and be directed to voicemail?
Click to expand...
Click to collapse
incoming call on SIM2 will ring.
Both the SIMS can receive calls no matter which of them are used for mobile data.
---------- Post added at 10:18 PM ---------- Previous post was at 10:01 PM ----------
spritey176 said:
So I've read in a few reviews it's a dual sim standby (both sims are in standby for a phone call) and both of them are capable of 3g/4g at the same time?
anyone know?
reason I ask is in my country the 2g bands are closed so can't use any other dual sim phone (all of them force second sim to be on 2g)
Click to expand...
Click to collapse
It is dual sim standby and both the sims are in standby for a phone call. Both of them are capable of 4G/3G/2G but NOT at the same time. 4G can be used only in one sim slot at a time. It can be set by going to settings > SIM cards> Preferred SIM for Cellular data. Whichever SIM you choose here will have 4G option. It can be changed from settings>Cellular networks > your SIM card > Preferred network type. (4G or 3G or 2G). The other SIM can have either 3G or 2G but there is no option to choose it. The only way is to click on 'Network operators' option from Cellular networks menu and choose a 2G or 3G service. Hope it helps.
I get 4g on each sim but you have to pick one for data but both are 4g
So if I have 2 sims, one for calls with 6gb 4g and one for data with 15gb 4g, when I finish the 6gb on 1st sim I can switch the data to the other sim via software? Thanks
Your right you can
Important about dual active
Le_Matriciel said:
Yes, it is designed like this, like all dual sim except Asus ZenFone 2, Galaxy S4 Duo and few other models.
LTE networks has not "phone circuits" and call are made in 3G (phone connect in HSPA during call). This is for all LTE phones.
LTE calls are possible with VoLTE protocol witch is IP voice communications and not voice circuit.
For using VoLTE, the phone need compatible with this protocol AND operators needs to activate this functionality.
Click to expand...
Click to collapse
This is true, but you can also add to the list of "Dual Active" phones all Huawei premium phones:
Mate 7, Mate 8, Honor 6, and probably Honor 7 and 8.
They all have DUAL ACTIVE SIM CARDS, which means that you can have a call on SIM-1 and get a waiting call on SIM-2, then you can answer the call and swap between the two active calls!! I even tried calling SIM-1 from SIM-2 and it was actually ringing!!
Also more importantly, when using data on SIM-1, you can make or receive a call on SIM-2 without interrupting data.
That's pretty amazing, but with a major drawback (at least for me, it is): 3G/4G service is only accessible on SIM-1 slot!! The SIM card in slot-2 will always be 2G and would never ever access 3G/4G networks
This is bad because I travel a lot, and I always need to be able to switch data from SIM-1 to SIM-2 and vice versa. The only option I have is to physically swap SIM cards between slots, which actually ruins the whole concept of having DUAL SIM mobile
My guess is that they are actually using two separate modems, each one is dedicated to one of the two SIM slots, and only one of them supports 3G/4G connectivity.
TheLoverMan said:
Your right you can
Click to expand...
Click to collapse
so, you are saying that both sims are 3G/4G capable, but can be used for data one at a time, and can be switched anytime via settings ?
I have a questión, so if a dual sim phone have 3g/4g capabilities on both sims, is there a way to make like a failover setup such as if sim1 looses data the phone switches to sim2 data automatically and viceversa?
I have problem in my one plus 3 network issues both SIM are not working properly both SIM search for network frequently when I switched data no network can anyone give solution I tried all rebooting, factory reset, searching network manually.

Is VoLte Supported on OnePlus 3 Stock 3.2.1 ?

VoLte from different service providers are going to be rolled out in India very soon. Is our Phone support VoLte feature?
Or shall we wait for another software update?
Any Custom Rom support VoLte feature at present ?
Pls reply
its supported in OOS 3.2.1
using JIO
I activate it (T-MOBILE Germany) and I can't find the settings in the menu [emoji20]
Any idea where to find?
Sent from my ONEPLUS A3003 using XDA-Developers mobile app
yes, but may depend on carrier, and it's worked since before 3.2.X for me
USA T-Mobile VoLTE works fine.
I've heard USA AT&T VoLTE isn't working yet though. Outside the USA don't know.
Not only is it supported, but you get this ridiculously stupid VoLTE icon in your status bar when you're connected! Hooray!
Yes its supported. Using JIO
Angadadlakha said:
Yes its supported. Using JIO
Click to expand...
Click to collapse
Sorry for off topic but which launcher are you using? If its the stock oneplus launcher then how did you change all the icons??
neildalal said:
Sorry for off topic but which launcher are you using? If its the stock oneplus launcher then how did you change all the icons??
Click to expand...
Click to collapse
Stock Launcher
Long press anywhere on the screen you will get 3 options Wallpapers Widgets Customize.
Go to Customize Swipe right Twice to get to the icon pack changer. The icon pack in the Screenshot is Rifon.
Angadadlakha said:
Stock Launcher
Long press anywhere on the screen you will get 3 options Wallpapers Widgets Customize.
Go to Customize Swipe right Twice to get to the icon pack changer. The icon pack in the Screenshot is Rifon.
Click to expand...
Click to collapse
Wow I never knew this existed. Thanks a lot my friend!
hrishi21007 said:
its supported in OOS 3.2.1
using JIO
Click to expand...
Click to collapse
how are u able to use Jio sim on oneplus 3...I also want it...can you suggest to get one??
mannu_in said:
how are u able to use Jio sim on oneplus 3...I also want it...can you suggest to get one??
Click to expand...
Click to collapse
Currently you can buy a LYF phone and you will get a JIO connection with it. But it will be locked to that specific handset.
To get a Sim free from handsetlock you need a employee/retailer demo sim.
Angadadlakha said:
Currently you can buy a LYF phone and you will get a JIO connection with it. But it will be locked to that specific handset.
To get a Sim free from handsetlock you need a employee/retailer demo sim.
Click to expand...
Click to collapse
HI .. are u facing any dusconnection. I have put vodafone 4g in sim slot 1 and jio in slot 2 and jio was disconnecting and reconnecting frequentry .. then i inserted jio in slot 1 and vodafone in slot 2 and now the network drop to zero after couple of hours that is network goes to no service after couple of hours and then i need to manually enable it to get the signal back. Are you facing this issue? In which slot are u using jio sim ? and are u using 2 sims i.e in both slot 1 and 2 ?
fatekills said:
HI .. are u facing any dusconnection. I have put vodafone 4g in sim slot 1 and jio in slot 2 and jio was disconnecting and reconnecting frequentry .. then i inserted jio in slot 1 and vodafone in slot 2 and now the network drop to zero after couple of hours that is network goes to no service after couple of hours and then i need to manually enable it to get the signal back. Are you facing this issue? In which slot are u using jio sim ? and are u using 2 sims i.e in both slot 1 and 2 ?
Click to expand...
Click to collapse
Im using idea on Sim 1 and Jio Sim 4G on sim 2
Make sire you put the network type to lte on JIO and gsm on the other one.
If you choose LTE for your other sim, since the handset can only support lte fir 1 sim at a time it puts the JIO sim into gsm. And JIO has only LTE band. No 2g or 3g bands. Hence the network drops.
Angadadlakha said:
Im using idea on Sim 1 and Jio Sim 4G on sim 2
Make sire you put the network type to lte on JIO and gsm on the other one.
If you choose LTE for your other sim, since the handset can only support lte fir 1 sim at a time it puts the JIO sim into gsm. And JIO has only LTE band. No 2g or 3g bands. Hence the network drops.
Click to expand...
Click to collapse
Hi.. are you telling me to select Preferred netwrok type as 3g for other sim and lte for jio sim ? and did u see any network issue like signal going completely off ( no service) for ur jio sim?
fatekills said:
Hi.. are you telling me to select Preferred netwrok type as 3g for other sim and lte for jio sim ? and did u see any network issue like signal going completely off ( no service) for ur jio sim?
Click to expand...
Click to collapse
As far as i know. When you choose the mobile data sim in sim cards menu. The option of network type disappears from the settings of the other one. For example. Please look at the attached screenshots.
Angadadlakha said:
As far as i know. When you choose the mobile data sim in sim cards menu. The option of network type disappears from the settings of the other one. For example. Please look at the attached screenshots.
Click to expand...
Click to collapse
Yes thats true.. since u told me to set lte for jio sim and gsm for other sim i was confused. At a time only one data connection will be enabled. so i guess the frequent drop is not related to that. Do u face any issue with network drop? im using jio in slot 1 and after couple of hours the network drops and it goes to no network.
fatekills said:
Yes thats true.. since u told me to set lte for jio sim and gsm for other sim i was confused. At a time only one data connection will be enabled. so i guess the frequent drop is not related to that. Do u face any issue with network drop? im using jio in slot 1 and after couple of hours the network drops and it goes to no network.
Click to expand...
Click to collapse
The data drops sometimes but comes back usually within seconds. If it doesnt i put on airplane mode and take it off again. That works. But its too rare. I use idea in slot 1 jio in slot 2
Angadadlakha said:
The data drops sometimes but comes back usually within seconds. If it doesnt i put on airplane mode and take it off again. That works. But its too rare. I use idea in slot 1 jio in slot 2
Click to expand...
Click to collapse
So the set up you have is idea in sim one.but the network u have selected is 3g or 2g.. (which gets disabled once u enable your jio sim)and u hav jio sim in slot 2 with lte enabled. Correct ?
fatekills said:
So the set up you have is idea in sim one.but the network u have selected is 3g or 2g.. (which gets disabled once u enable your jio sim)and u hav jio sim in slot 2 with lte enabled. Correct ?
Click to expand...
Click to collapse
Yes i chose 2g/3g on idea sim before i put in the jio sim.
Hmm i tried that but ..setting 2g for vodafone sim in slot 1 and jio in slot 2.. but it starts disconnecting and reconnecting again and again.
---------- Post added at 03:03 PM ---------- Previous post was at 03:03 PM ----------
Angadadlakha said:
Yes i chose 2g/3g on idea sim before i put in the jio sim.
Click to expand...
Click to collapse
Hmm i tried that but ..setting 2g for vodafone sim in slot 1 and jio in slot 2.. but it starts disconnecting and reconnecting again and again.

Network problem on ONE PLUS 3

I just brought a One plus 3 last week.
I m using jio in sim slot 1 and bsnl in sim slot 2.
If I select cellular data on the Jio sim, both sims have network. But if I select cellular data on Bsnl sim, jio does not get network. I m using on oxygen OS 3.2.6.
It is hardware or software problem?
[email protected] said:
I just brought a One plus 3 last week.
I m using jio in sim slot 1 and bsnl in sim slot 2.
If I select cellular data on the Jio sim, both sims have network. But if I select cellular data on Bsnl sim, jio does not get network. I m using on oxygen OS 3.2.6.
It is hardware or software problem?
Click to expand...
Click to collapse
thats probably because jio is a 4g only network and oneplus 3 doesn't support both sims running 4g at the same time.
bonham1988 said:
thats probably because jio is a 4g only network and oneplus 3 doesn't support both sims running 4g at the same time.
Click to expand...
Click to collapse
But bsnl is not 4g right?
[email protected] said:
But bsnl is not 4g right?
Click to expand...
Click to collapse
That doesn't matter, you can only set 4g network on the sim that has an active data connection. Suppose you have idea and Airtel and both have 4g, which ever sim is your data sim will be able to have 4g access.
Sent from my OnePlus3 using XDA Labs
[email protected] said:
I just brought a One plus 3 last week.
I m using jio in sim slot 1 and bsnl in sim slot 2.
If I select cellular data on the Jio sim, both sims have network. But if I select cellular data on Bsnl sim, jio does not get network. I m using on oxygen OS 3.2.6.
It is hardware or software problem?
Click to expand...
Click to collapse
I Have Oneplus 3T Us A3000 Model. I am From India
actually here is the main issue is Volte Related, meanwhile 4g is working internet working super but Volte for calling not working. even i switch on Volte in settings but still they did not work for i try everything.
then i search and got the band issue is here i checked my Network provider using Band 3,5,40.
but in my mobile has band 5. so i unlock rest network bands by Qcn File of CN.
successfully unlocked the all my network provider bands.
but still Volte is not working i try my all efforts and things factory reset, custom rom but still Volte not working for me.
2nd issue
even now only 1 sim can work at a time other network gone out and when i try to search network the error comes (error while searching network)
means dual stand by is not working for me. vice versa same when i switch internet on 2nd sim 1st network gone
even i switch 1 sim on 4G and other on 2G.
?please help me out my Oneplus 3T is down
---------- Post added at 07:42 AM ---------- Previous post was at 07:41 AM ----------
nikhil.agrawal said:
That doesn't matter, you can only set 4g network on the sim that has an active data connection. Suppose you have idea and Airtel and both have 4g, which ever sim is your data sim will be able to have 4g access.
Click to expand...
Click to collapse
I Have Oneplus 3T Us A3000 Model. I am From India
actually here is the main issue is Volte Related, meanwhile 4g is working internet working super but Volte for calling not working. even i switch on Volte in settings but still they did not work for i try everything.
then i search and got the band issue is here i checked my Network provider using Band 3,5,40.
but in my mobile has band 5. so i unlock rest network bands by Qcn File of CN.
successfully unlocked the all my network provider bands.
but still Volte is not working i try my all efforts and things factory reset, custom rom but still Volte not working for me.
2nd issue
even now only 1 sim can work at a time other network gone out and when i try to search network the error comes (error while searching network)
means dual stand by is not working for me. vice versa same when i switch internet on 2nd sim 1st network gone
even i switch 1 sim on 4G and other on 2G.
?please help me out my Oneplus 3T is down

Question Possible bug F3 dual sim with VoLTE

Poco F3
12.5.1 official stable
A bug or as intended?
Dual SIM, using one SIM for calls, the second for mobile internet. Different networks. Both networks support VoLTE, it is turned on and works fine while using same SIM for calls and LTE at the same time..
But hhen calling from the first SIM, don't have LTE connection on the second.
I understand the reason is maybe because they are on different networks, but I was still expecting otherwise.
An option "use secondary SIM for mobile data during calls" does not have any effect.
CAn someone recreate?
It's dual stand-by not dual active. In dual stand-by only 1 SIM can be fully active at a time.
That is 1 SIM can have an active call and Data, or one active call or Active Data. You can't have 2 active calls on different SIMs or 1 active call and active data on different SIMs.
Update: Adding link : https://en.wikipedia.org/wiki/Dual_SIM#Standby
Oh. Thanks for this.

Question LTE+ not working in SIM1

Hello guys,
I'm facing a weird bug on my oneplus 9pro. When I insert my SIM on SIM Slot 1, LTE+ doesn't show, but just LTE. But when I change the simslot to SIM Slot 2, LTE+ is displayed and I get better speed. Anyone know why it isn't working on SIM slot 1?
thanks
Have you checked your APNS?
cave.man1908 said:
Have you checked your APNS?
Click to expand...
Click to collapse
Yes, I have set the APN but the problem persists

Categories

Resources