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
Click to expand...
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).
My googlefu isn't turning much up on the dual sim version of this phone, but hardware seems to be almost identical to the standard version.
1)Does anybody know if the international version would work with TMobile WiFi calling? Volte?
2) is the SIM2 slot 2g only or is it 3g? (This would be my att sim card, which disabled their 2g network)
Sent from my ASUS_Z00A using Tapatalk
Same questions here. I'm interested in the international version with 128gb memory and 6gb RAM. I want to use two Sims in this phone, one TMobile and one AT&T.
I really need TMobile wifi calling to work out of the box on this phone. Has anyone been able to get an answer on this?
Thanks in advance for any help!
Is there any method to make both the sim cards to access 4g/3g network. Presently sim 1 only has access to 4g and sim 2 only 2g.
hal.debasis said:
Is there any method to make both the sim cards to access 4g/3g network. Presently sim 1 only has access to 4g and sim 2 only 2g.
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Click to collapse
Currently, NO.
Among Honor/Huawei phones, only Recently launched mate 10 amd mate 10 pro has dual 4G Volte...rest all models just support only single 4G sim slot at a time.
Inorder to provide better battery efficiency Huawei provides 4G only on one sim at a time in all it's Honor devices except mate 10 and post models because a consumer mostly uses only 4G on a single sim at a time until recently.
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.
Click to expand...
Click to collapse
but why? is that a flaw?
Can anyone confirm that while using one sim for data on 4G / LTE can you have the other sim for voice on 3G? I know that this (as every other phone in the world) is a dual stand by smartphone.
If you need further clarifying: https://forum.xda-developers.com/android/help/dual-sim-simultaneous-4g-3g-capable-t3370632
I will appreciate if anyone could confirm this along with firmware version and model version, since this feature has been available in some countries in the past, but not all.
Thanks,
JP