[Q] Dual sim phone for korea - General Questions and Answers

Hi everyone.
Is there any dual sim phone in the market that will work in 3G network at the same time?
I am currently here in korea, where phone only works in 3G (UMTS 2100 I think) signal.
So if I have a dual sim, 3G should work on both sim at the same time.
Thanks a lot.

Dual sim phone with 3G fonction
hawkeye10 said:
Hi everyone.
Is there any dual sim phone in the market that will work in 3G network at the same time?
I am currently here in korea, where phone only works in 3G (UMTS 2100 I think) signal.
So if I have a dual sim, 3G should work on both sim at the same time.
Thanks a lot.
Click to expand...
Click to collapse
you can buy a TECNO T3 phone who work with dual sim WCDMA 3G

blage said:
you can buy a TECNO T3 phone who work with dual sim WCDMA 3G
Click to expand...
Click to collapse
Do both sims work simultaneously?

B63m
B79m
h7300
I9300
Regard

blage said:
you can buy a TECNO T3 phone who work with dual sim WCDMA 3G
Click to expand...
Click to collapse
I am actually not quite familiar with this brand, have you tried this model and will both work on 3G simultaneously?
harlockpfp said:
B63m
B79m
h7300
I9300
Regard
Click to expand...
Click to collapse
have you tried this phones on both 3G networks?
I read some articles regarding dual sim phone that even though it supports 3G on both sims they dont usually work at the same time, 1 in 2G and other in 3G.
Thanks.

Yes there are many types of phones came with 2 sim cards.
such as samsung & lg
but i heared about a piece that you can buy it seperatelly and insert it into the phone which make it possible to fit 2 sim cards at the same time

The Prince1 said:
Yes there are many types of phones came with 2 sim cards.
such as samsung & lg
but i heared about a piece that you can buy it seperately and insert it into the phone which make it possible to fit 2 sim cards at the same time
Click to expand...
Click to collapse
yah, i saw a lot of dual sim phones.. but the problem is, if it will both work at the same time in 3G networks.. since only 3G signal is supported here in korea..

I know this thread is old, but I have the exact problem right now. Dual Sim in korea, with one korean and one foreign sim card does not work!
Too bad...

Related

Specs on second sim on Moto G dual-sim version

Is the second SIM WCDMA 3G voice capable or is it only GSM as most dual-sim phones out there?
I can't seem to find any information on it, and this is an important piece of data for people living in countries with no 2G GSM network.
The second sim is GSM.
Enviado do meu XT1033
lcdiniz said:
The second sim is GSM.
Enviado do meu XT1033
Click to expand...
Click to collapse
In other words, useless for Japan (where all voice calls go over WCDMA and there is no GSM network).
Clarification
evildave_666 said:
In other words, useless for Japan (where all voice calls go over WCDMA and there is no GSM network).
Click to expand...
Click to collapse
You are right in that it is useless in Japan. However, just to clarify the issue: Both SIM slots are 3g capable, but the phone forces the SIM card that is not used for data to 2g mode. Only one of the SIMs can be used for data at a time, just as you can only send texts or make voice calls through one at a time so it makes sense in any other country...
What is not clear is whether this is a Motorola decision to save battery or imposed by the chip set used or an Android OS issue. Covia Fleaphone has same issue, and provides a shortcut to switch the active SIM (active=3g enabled SIM), so it seems to be not just a Motorola decision...
A
I believe it has only one 3g radio in it and used by whatever Sim is being used for data So its a hardware issue
Sent from my XT1033 using Tapatalk
jaspreet997 said:
I believe it has only one 3g radio in it and used by whatever Sim is being used for data So its a hardware issue
Click to expand...
Click to collapse
Sounds about right... It is a real pity how bad the documentation/specifications info is on dual sim phones. Make it very difficult to pick the right one, several people now claim that the Xperia M2 works with 3g on both SIMs simultaneously, but can't verify this...
At the same time I guess Japan (where I use it) is an unusual case, most places still have 2g, and Japan only recently started selling separate SIMs...
A

No Sim recognized even after putting it in India

I got my Nexus 5 from the US today , its the D820 version , I earlier read that 2g and 3g will available for this model , but when I have put the sim (micro) , it shows NO SIM. Can Anyone HElP!
karanv.10111 said:
I got my Nexus 5 from the US today , its the D820 version , I earlier read that 2g and 3g will available for this model , but when I have put the sim (micro) , it shows NO SIM. Can Anyone HElP!
Click to expand...
Click to collapse
Get a new micro sim from your operator or if u have any other, that is not the cut one but given by the stores try with it.
Operators like Airtel, bsnl, vodafone use GSM 850/900/1800/1900 MHz range here as well so it should work!
Make sure you the sim is cut properly and after inserting the sim, reboot the device!

Dual-SIM clarification

So how does dual-SIM work on this phone? Are both SIMs in stand-by? Can I use both for LTE at the same time? Or only on SIM for 4G and the other one for 2G - if so: can I choose independently which SIM should work with 4G at the moment, or is it fixed like Slot 1 = 4G / Slot 2 = 2G?
I'm thinking over getting this phone - coming from a Lenovo Vibe Z (Dual-SIM) and it sucks, that Slot 2 is always 2G
Both lines in stand by, you have the option to choose which line will provide the Internet.. But only one at a time... Hope this help you...
jnannetti said:
Both lines in stand by, you have the option to choose which line will provide the Internet.. But only one at a time... Hope this help you...
Click to expand...
Click to collapse
But are both SIMs 4G capable?
Yes!
jnannetti said:
Yes!
Click to expand...
Click to collapse
Can anyone else confirm this?
By the way, I'm a Z3 Dual user, D6633 and I checked this in my phone..
Saiyajin said:
Can anyone else confirm this?
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Click to collapse
From what I've seen on several website (including: eprice.com.hk / gsmarena.com...) it seems like most people are saying only sim 1 is LTE capable...
So which one is it?
Both SIMS 4G or only SIM1 4G?
Are there maybe different models?
Saiyajin said:
So which one is it?
Both SIMS 4G or only SIM1 4G?
Are there maybe different models?
Click to expand...
Click to collapse
Got my Z3 Dual (D6633) last saturday and both sim can do 4g, but only one at a time. U choose which sim does data. Both are always on for calls and sms unless u deliberatly turn the sim off in the settings menu.
I'm looking to buy this but wanted to know if SIM 1 is running LTE can SIM 2 run in 3G but voice/text only? Both my SIMs are with Bell Mobility in Canada and they don't have a 2G network. Thanks for the help.

Xperia XZ (F8332 model) dual SIM configuration

I have a question about dual sim model. Do both sim card can work simultaneously eg. 3G like eg Xiaomi 5?
Most of dual models work with mode (2,3,4)G/2G or 2G/(2,3,4)G only.
Regards
One SIM must be in 2G. The other can be 2G/3G/4G.
azian_advanced said:
One SIM must be in 2G. The other can be 2G/3G/4G.
Click to expand...
Click to collapse
Is that 2g , so no data phone only or just gprs?
I meant 2G as in phone or SMS only.
azian_advanced said:
I meant 2G as in phone or SMS only.
Click to expand...
Click to collapse
Any idea why is this limitation? I was trying to see it to LTE mainly to put that in VoLTE for calls and then realised either of the SIM only can be set to LTE.
On the XZ, I have sim1 on 4g and sim2 on 3g.
pptt said:
On the XZ, I have sim1 on 4g and sim2 on 3g.
Click to expand...
Click to collapse
Thanks for answer. Are you sure?
PanNet said:
Thanks for answer. Are you sure?
Click to expand...
Click to collapse
I've asked the same question to a Xperia rep. when I've purchased XZ dual in Hong Kong.
Both slots are 4G speeds, but if both slots are in use; highest speed of one slot is 4G and other limited to 3G max
They don't have 4G/4G support yet...
Hope this helps.
Well I was going to start a new thread, but this seems like the correct place to ask:
So if I have one sim dedicated to calls/text and a second sim just for data, the phone should operate the same as if I had only one sim which can do both phone and data?
Also if both sims are capable of handling calls, can i deactivate the phone of one sim card but keep the data active?

Dual SIM 4G+3G or only 4G+2G ?

I'm contemplating a purchase for a Mate 9 with dual SIM capability ( from Kogan Australia). It's advertised with dual SIM. For me, the secondary SIM would only add value if I can use it on 3G, while I keep the main SIM on 4G.
But in some documentation, the secondary SIM only supports 2G. Has anyone successfully used Mate 9 with 4G+3G SIM combination.
andrewsc said:
I'm contemplating a purchase for a Mate 9 with dual SIM capability ( from Kogan Australia). It's advertised with dual SIM. For me, the secondary SIM would only add value if I can use it on 3G, while I keep the main SIM on 4G.
But in some documentation, the secondary SIM only supports 2G. Has anyone successfully used Mate 9 with 4G+3G SIM combination.
Click to expand...
Click to collapse
For sure....! I also think 4G+4G can work...
If the Australian version is the same as the European version it will support 2G, 3G and 4G on SIM 1 whilst SIM 2 will support 2G and 3G.
Sent from my MHA-L29 using Tapatalk
3G would be great on SIM 2. The problem I'm trying to solve is that our Australian telco ( Optus ) has severely degraded its own mobile network, to the point where we can't receive voice calls anywhere in our suburb. LTE used to work well, not any more. On the other hand, they improved somewhat on their 3G network. My wife is still in contract with cheap plan. So I could arrange a dual-SIM where SIM 1 is on 4G with another telco, while SIM 2 stays at 3G with the old telco. Things may improve for their network, or the company is going down, we shall see.
4G/3G is how it does it.
Both will support 4G but you'll need to put the switcher setting on your homescreen so you can switch quickly - you can't have both on 4G but both will support it. The other will be able to use 3G.

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