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Topic # 191484 5-Feb-2016 15:34
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Im wondering with the cheap P8 lite dual sim, how can I find out of both sim slots are 4g?

 

Some phones have a 4G slot and only a 2G slot which is no use.


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  Reply # 1486065 5-Feb-2016 16:32
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Most dual SIM phones  that have LTE on both SIMs only allow one to be the main, the second falls back to GSM.   So it you want to use this phone on Spark Skinny you may be out of luck..





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  Reply # 1486147 5-Feb-2016 18:00
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I want to use 4G for spark as main sim and vodafone as secondary

 

Ok I get it now. Had a chat with sony. No phone can do 4g and 4g. Its Lte and 2g.

 

So which Telcos are not turning off their 2G?

 

 


 
 
 
 


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  Reply # 1486152 5-Feb-2016 18:10
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When I was looking a couple of months ago the only phone that I could find still that supported dual SIM LTE with LTE on both was the Z3 D6683 model (not to be confused with the far more common regular dual SIM Z3). Band support on this was limited and it certainly doesn't have band 28.

 

 


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  Reply # 1486186 5-Feb-2016 18:30
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This phone doesn't have NFC apparently, so can't do Semble etc.






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  Reply # 1486910 7-Feb-2016 12:36
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sbiddle:

 

When I was looking a couple of months ago the only phone that I could find still that supported dual SIM LTE with LTE on both was the Z3 D6683 model (not to be confused with the far more common regular dual SIM Z3). Band support on this was limited and it certainly doesn't have band 28.

 

 

that interesting as i was actually speaking to sony yesterday and they said its not technically possible for any phone to have dual 4g or even 4g and 3g, all phones are 4g/Lte and 2g if dual sim. Thats what I was told anyway.

 

so yep you can change either sim to LTE, but the other will revert to GSM. Meaning you cant have 2 Sims running 4g at the same time.


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  Reply # 1486935 7-Feb-2016 13:06
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TeaLeaf:

 

sbiddle:

 

When I was looking a couple of months ago the only phone that I could find still that supported dual SIM LTE with LTE on both was the Z3 D6683 model (not to be confused with the far more common regular dual SIM Z3). Band support on this was limited and it certainly doesn't have band 28.

 

 

that interesting as i was actually speaking to sony yesterday and they said its not technically possible for any phone to have dual 4g or even 4g and 3g, all phones are 4g/Lte and 2g if dual sim. Thats what I was told anyway.

 

so yep you can change either sim to LTE, but the other will revert to GSM. Meaning you cant have 2 Sims running 4g at the same time.

 

 

Just looking at the D6683 again it only supports TDD LTE on the primary radio and FDD LTE on the secondary, so is pretty much useless anywhere outside China which is the market it was designed for.

 

 




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  Reply # 1487137 7-Feb-2016 19:07
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yep and when you switch the other is limited to GSM, ie you cant have dual LTE at the same time. there isnt a phone that does provide that. some of them are ok for receiving texts and calls on a gsm network.


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  Reply # 1487149 7-Feb-2016 19:27
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TeaLeaf:

 

yep and when you switch the other is limited to GSM, ie you cant have dual LTE at the same time. there isnt a phone that does provide that. some of them are ok for receiving texts and calls on a gsm network.

 

 

Yup, it really sucks that I cant have 2 skinny or spark sims in the one phone, but so long as the rest of the world keeps having GSM networks, they have no reason really to make them do more than one 3g/4g connection at a time.

 

What gets me is that they will not auto-switch data between the sims, so if I had for example a 2degrees and a vodafone sim in, and was somewhere that had no 3G/4G of 2degrees (almost anywhere inside) you would think that when it saw one sim fall back to 2G it would flick the other one over to 4G so that you still had data working, but no. They will just keep data running on the useless edge connection while the vodafone sim is sitting there on their GSM network when they have full 4G coverage.

 

 





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  Reply # 1487179 7-Feb-2016 20:58
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TeaLeaf:

 

yep and when you switch the other is limited to GSM, ie you cant have dual LTE at the same time. there isnt a phone that does provide that. some of them are ok for receiving texts and calls on a gsm network.

 

 

 

 

Incorrect. Z3 D6683 supports dual active LTE but it would seem it's still the only phone that can do it, with the caveat mentioned above about bands.

 

 

 

 




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  Reply # 1487192 7-Feb-2016 21:36
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where did you get that info?

 

because i asked sony this exact question on this phone and the z5 and they said not it cant. it can switch between LTE on each sim, but the secondary will always switch to gsm.


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  Reply # 1487291 8-Feb-2016 09:49
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TeaLeaf:

 

where did you get that info?

 

because i asked sony this exact question on this phone and the z5 and they said not it cant. it can switch between LTE on each sim, but the secondary will always switch to gsm.

 

 

Sony website.

 

Z5 dual is very different to the Z3 model I mentioned which is a specific handset for the Chinese market.

 

 

 

http://www.xperiablog.net/2015/05/02/sony-xperia-z3-dual-td-d6683-to-launch-with-4g-dual-sim-support/

 

 

 

Sony's white paper with band support

 

http://www-support-downloads.sonymobile.com/d6603/whitepaper_EN_D6603_D6653_3.pdf

 

 

 

There was also another site I read a few months ago while looking at this very issue that has a lot more detail about this phone, but I can't find it now.

 

 

 

 

 

 


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  Reply # 1487295 8-Feb-2016 10:21
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sbiddle:

 

TeaLeaf:

 

where did you get that info?

 

because i asked sony this exact question on this phone and the z5 and they said not it cant. it can switch between LTE on each sim, but the secondary will always switch to gsm.

 

 

Sony website.

 

Z5 dual is very different to the Z3 model I mentioned which is a specific handset for the Chinese market.

 

 

 

http://www.xperiablog.net/2015/05/02/sony-xperia-z3-dual-td-d6683-to-launch-with-4g-dual-sim-support/

 

 

 

Sony's white paper with band support

 

http://www-support-downloads.sonymobile.com/d6603/whitepaper_EN_D6603_D6653_3.pdf

 

 

 

There was also another site I read a few months ago while looking at this very issue that has a lot more detail about this phone, but I can't find it now.

 

 

 

 

 

 

 

 

Thanx for that .  Nice to know..





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  Reply # 1487384 8-Feb-2016 12:38
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 Im not debating that. The point that sony tech support has made to me, on ALL there phones, like every phone in the market, you can have 4G dual sim support, but not run 4G on both SIMS at the same time, the secondary has to switch to GSM. You can chose to turn it LTE, but then sim 1 becomes GSM.

 

Lets not get in an argument haha, this is what Sony have told me. Your links dont suggest any different, they just say Dual Sim 4g Support.

 

I could link a lot of threads and videos explaining this on e6683 but im not going to. Ring Sony yourself :-)


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