Hey guys,
So I have the Z3 Dual, but where I live, we only get 3G network and no GSM, which brings me to my question:
Is anyone working towards a hack to allow my device to run BOTH my Telstra SIM cards in LTE mode without one reverting to GSM?
Thanks in advance,
Phil
Really? No gsm signal or 2g. I think 2g structures are the most basic one that every carrier Has. BecAuse if 3g becomes congested, the subscriber can fall back to 2g. Anyway i guess no hack is on going because of the rooting issues with this plus i think it's a hardware limitation. 2 simcards cannot use 1 modem (the 3g/4g) because that would tax a lot of battery power
Sent from my D6633 using XDA Free mobile app
There are 2 radios in the phone I'm suspecting, since both SIM's run different IMEI numbers (1 per radio) if you check in About Phone/Status and check the 2 SIMs.
So I can't see why this is a limitation.... renders the phone worthless for what I wanted it for (Work sim and Personal sim),
And yes, where I live, there has never been GSM, it was CDMA before the towers were upgraded to 3G (Central Wheatbelt is Western Australia).
Dysstatic said:
There are 2 radios in the phone I'm suspecting, since both SIM's run different IMEI numbers (1 per radio) if you check in About Phone/Status and check the 2 SIMs.
So I can't see why this is a limitation.... renders the phone worthless for what I wanted it for (Work sim and Personal sim),
And yes, where I live, there has never been GSM, it was CDMA before the towers were upgraded to 3G (Central Wheatbelt is Western Australia).
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Click to collapse
When you use the first SIM with LTE the second has no signal?
I can't understand if the second sim limit is only for connection or also for 3G bands.
I mean: you can still use the second line on a 3G network only for calls and SMS without using data connection or not? The second line is limited on 2G bands?
thanks for answers I ordered a Z3 Dual 2 days ago
theskig said:
When you use the first SIM with LTE the second has no signal?
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Click to collapse
Correct, because the second sim drops down to GSM, which we don't have in rural Western Australia. And vice versa, set the second SIM to LTE/WCDMA and the first SIM drops down to GSM. Meaning, you cannot run 2 SIM's side-by-side unless you live in an area that has GSM/2G still.
theskig said:
I can't understand if the second sim limit is only for connection or also for 3G bands.
I mean: you can still use the second line on a 3G network only for calls and SMS without using data connection or not? The second line is limited on 2G bands?
thanks for answers I ordered a Z3 Dual 2 days ago
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Click to collapse
So, you choose either SIM as your data sim. Whichever you choose, that sim runs in LTE mode and the other SIM is used for calls/sms only.
SMS and phone apps both have 2 send buttons labelled 1 and 2, so you can send messages or make calls from either SIM at the press of a button. But only 1 SIM has data active, that is the SIM running in LTE mode.
I have messaged Sony Mobile Developers regarding this, the reply was:
From: [email protected]
Hi Phil,
Thanks so much for your email. We will forward the dual SIM issue you have identified to our internal teams for further investigation.
Best regards,
Developer World
Hope this helps
Regards,
Phil
Dysstatic said:
Correct, because the second sim drops down to GSM, which we don't have in rural Western Australia. And vice versa, set the second SIM to LTE/WCDMA and the first SIM drops down to GSM. Meaning, you cannot run 2 SIM's side-by-side unless you live in an area that has GSM/2G still.
So, you choose either SIM as your data sim. Whichever you choose, that sim runs in LTE mode and the other SIM is used for calls/sms only.
SMS and phone apps both have 2 send buttons labelled 1 and 2, so you can send messages or make calls from either SIM at the press of a button. But only 1 SIM has data active, that is the SIM running in LTE mode.
I have messaged Sony Mobile Developers regarding this, the reply was:
From: [email protected]
Hi Phil,
Thanks so much for your email. We will forward the dual SIM issue you have identified to our internal teams for further investigation.
Best regards,
Developer World
Hope this helps
Regards,
Phil
Click to expand...
Click to collapse
Thanks for infos!
That's weird! If I live in a place with only 2G or only 3G network I cannot use 2 sim cards!
But I remember reading on online user manual that the 2 sims network settings are separated, right? If you force both on the right frequency?
In a few days I'll receive the phone and I'll help you with some tests
theskig said:
Thanks for infos!
That's weird! If I live in a place with only 2G or only 3G network I cannot use 2 sim cards!
But I remember reading on online user manual that the 2 sims network settings are separated, right? If you force both on the right frequency?
In a few days I'll receive the phone and I'll help you with some tests
Click to expand...
Click to collapse
Correct, both sims wont run on 3G at the same time..
Both sims WILL run on 2G at the same time though (GSM).
Can anyone let me know if the S8+ Dual Sim is 4G/3G as Australia is turning off all 2G networks.
Thanks
It's 4G/3G/2G (SIM 1) + 4G/3G/2G (SIM 2).
TL;DR: LTE/LTE.
Pretty sure that SIM 2 is GSM only
http://www.phonemore.com/samsung-galaxy-s8-plus-duos-sm-g955fd/specs/3256
2nd sim is 2g/3g on my s8+.
seal said:
Can anyone let me know if the S8+ Dual Sim is 4G/3G as Australia is turning off all 2G networks.
Thanks
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Click to collapse
It's 4G/3G for my 955FD
Sent from my SM-G955F using Tapatalk
Both SIMs are 3G and 4G, but you can use as 4G only one and the other one will be max 3G, or if you prefer can be 2G as well. This is not so relevant, since you switch the SIM cards for internet use (since you can not use both cards in the same time for data usage) it will change settings to 4G for the preferred SIM immediately.
Hello,
Recently I had to use two Jio SIM (VoLTE) on my Samsung ON5 which says it is a dual 4G LTE phone. But I couldn't set LTE network mode on my two Jio sims' on the same time. If SIM-1 is LTE, the SIM-2 by default goes to 2G which makes SIM-2 as inactive ( Emergency Calls Only ). Can anyone enlighten me on this? Are there any Android phones available now in the market which enables dual LTE at the same time?
I assume my question is clear.
Thank You ,
Arus Chandran
I think this is normal, at the moment all smartphones you can use only 1 SIM LTE.
GuikBretas said:
I think this is normal, at the moment all smartphones you can use only 1 SIM LTE.
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but why? is that a flaw?
I verified a very wierd behavior. Even if I selected the 4G on both Sim, the sim not selected for data traffic is always forced to connect to 3G 900MHz. If I go in areas without that kind of coverage that sim becomes unreachable. I can deduct that dual 4G is actually a fake , isn't it?
So, the OP7Pro has duel 4G capability. Would it be possible to tether from sim 2,whilst using data on the phone for sim 1. If 4g is activated for both aims, this would be great as I wouldn't slow down my data when Tethering lots from my laptop. Happy to throw some money at it if a dev can help with that.
As far as I understood, the Dual 4G means, the phone uses 4G on both sim (allowing VoLTE for example). But that switch did not lead the phone to use data on both sim simultanously... data uses always the selected sim for data.
akxak said:
As far as I understood, the Dual 4G means, the phone uses 4G on both sim (allowing VoLTE for example). But that switch did not lead the phone to use data on both sim simultanously... data uses always the selected sim for data.
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Click to collapse
Ok, that makes sense (and does work) - but to counter that, my network's VoLTE band allows you to use data on that band, as they also use it for extending indoor coverage, and so i can use data on the phone. Think it's still possible?