ID300 smartphone is a dual card dual standby smart phone which can use two SIM cards.So that we can easily distinguish between different types of calls, one SIM card used to work, another SIM card used to contact friends and family. One for working another for rest, so when you are working, you will not be disturbed, and when you have a rest, you will not be disturbed too.
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I can't find a solid answer on this. I'm looking for a dual SIM phone that doesn't limit the 2nd SIM to 2G, like most older dual SIM phones. I found one source online that says it does support 3G on SIM2 after a software upgrade.
In particular I'm curious if it's supported on LineageOS ROM. My question in the relevant thread for that has gone unanswered. For now I'd be happy to know that it works even with stock.
You can run either the first or the second SIM on 3G, but you can't run both at once on 3G. As soon as you set one SIM to 3G, the other drops back to 2G. This defeats the purpose of Dual Sim in countries like Australia that have stopped using 2G. There's only one 3G radio in the phone.
This information is for the A7 2017, but presumably it's the same for the A5 2017.
A520F-DS, the dual 3G/2G works. At least dual standby. Stock TW. Also works with 4G on 1 SIM.
screenshot
Some apps might not update the signal strength(Android 1 telephony API, single SIM, 2G doesn't really support the newer(cellids only, no signal strength unless it's matched with the neighbouring cell info), 3G dual, and most of 4G is OK). To fix this, insert 2 sims, set 1 as default for everything, remove that SIM, the signal strength will update for the other SIM.
Band Selection(3G/2G only unless the other SIM is set to that) and Band Disable(4G/3G) works and only applies on the selected SIM. Requires root or specific CSCs.
Cell Locking applies only on SIM 1 and could affect SIM 2.
I've owned three different dual SIM phones (current one is the A3) and none of them could do more than 2G for the "other" SIM. Totally agree with @ryebuck that it defeats the purpose of dual SIM devices in some countries, the more so when more countries will drop 2G in the future. Either manufacturers start making REAL dual phones, or the dual concept will die of its own death.
Hello, i have the sam A705FN (non dual sim varient, however other network providers here do have the DS varient)
When i took this phone i assumed i would get th Dual sim varient.
I see on my sim tray i have shouldhve had space for 3 cards (one last slot is blanked out)
Now my question is, if i get a ds varient sim tray will i be able to ise dual sim, even if i need to somehow flash the ds firmware.
And does the fn varient even have the hardware to support dual sim
STiCKxaH said:
Hello, i have the sam A705FN (non dual sim varient, however other network providers here do have the DS varient)
When i took this phone i assumed i would get th Dual sim varient.
I see on my sim tray i have shouldhve had space for 3 cards (one last slot is blanked out)
Now my question is, if i get a ds varient sim tray will i be able to ise dual sim, even if i need to somehow flash the ds firmware.
And does the fn varient even have the hardware to support dual sim
Click to expand...
Click to collapse
all A705FN firmwares are for dual sim , exept on your device the dual sim is greyed out , you can buy a dual sim varient but tell me whats your country and service provider
STiCKxaH said:
Hello, i have the sam A705FN (non dual sim varient, however other network providers here do have the DS varient)
When i took this phone i assumed i would get th Dual sim varient.
I see on my sim tray i have shouldhve had space for 3 cards (one last slot is blanked out)
Now my question is, if i get a ds varient sim tray will i be able to ise dual sim, even if i need to somehow flash the ds firmware.
And does the fn varient even have the hardware to support dual sim
Click to expand...
Click to collapse
I don't think you can use dual sim even if you used the tray form a dual sim model. If the phone only shows 1 IMEI number the device probably only has 1 sim card slot.
Sreedev the bro said:
I don't think you can use dual sim even if you used the tray form a dual sim model. If the phone only shows 1 IMEI number the device probably only has 1 sim card slot.
Click to expand...
Click to collapse
true but you can trick the phone by adding a 2st imei from another phone , also the firmware check of your hardware is compatible , so if it detect a dual sim it could theorically work and the settings would appear again or not be greyed out anymore
BK said:
true but you can trick the phone by adding a 2st imei from another phone , also the firmware check of your hardware is compatible , so if it detect a dual sim it could theorically work and the settings would appear again or not be greyed out anymore
Click to expand...
Click to collapse
How can we be sure that there is a second sim card reader in it?
y.erenbektas said:
How can we be sure that there is a second sim card reader in it?
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Click to collapse
Yeah you can't be sure. My guess would be that it does not have a second sim card reader because it doesn't make sense for a company to make hardware and disable it through software (Even though it could and has happened). Cant be sure until somebody does a teardown comparison.
BK said:
all A705FN firmware are for dual sim , exept on your device the dual sim is greyed out , you can buy a dual sim varient but tell me whats your country and service provider
Click to expand...
Click to collapse
Hey, sorry for only getting back to you now, life has been busy..
but here's what's happened since i last posted.
I have an a70 from MTN-SA (mobile telecommunications network south Africa)
it is a single sim tray.
i used a sim tray from the Samsung galaxy a50 Dual sim variant, with no second sim detected unfortunately.
i wonder if the device has the hardware to support a second sim. If so, i do have an extra IMEI number to use that i got off a cheapo dual sim china phone.
Sreedev the bro said:
Yeah you can't be sure. My guess would be that it does not have a second sim card reader because it doesn't make sense for a company to make hardware and disable it through software (Even though it could and has happened). Cant be sure until somebody does a teardown comparison.
Click to expand...
Click to collapse
i wondered the same thing.. But there is a dual sim variant of this device out in the wild.
My country doesn't allow dual sim (only with 2 specific carriers [cell-c & Telkom Mobile (8ta)])
so it's weird that they would make two separate hardware revisions for the same market?
I'm having trouble finding out what type of dual SIM technology the 7T uses. Is it DSFA of DSDS? Will either one allow me to take a call from two different carriers at any time? FYI I'll be using Verizon and AT&T.
OP has always 'only' DSDS. So you can only make one call with one card at the same time.
The other card is disabled during this call.
Thank you for the info. If I am currently not on a phone call, the phone being idle, are both Sims able to receive a call at anytime?
yes, of course.
RobM87 said:
I'm having trouble finding out what type of dual SIM technology the 7T uses. Is it DSFA of DSDS? Will either one allow me to take a call from two different carriers at any time? FYI I'll be using Verizon and AT&T.
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Click to collapse
Dual SIM technology? I'm on the T-Mobile variant. I'm confused.
Sent from my [device_name] using XDA-Developers Legacy app
DSDS = Dual sim, dual standby, where you have two sims from two different carriers. When one SIM is active on a call the second goes idle. DSFA = Dual sim full standby, even if one sim is active on a call the other continues to function, although I am not certain of the mechanics of how a user handles two calls at once.
These are very popular with frequent international travelers, or when someone has a company phone and a personal phone but doesn't want to carry two devices. They really haven't caught on in the US because carriers for the most part have similar coverage and don't sell them. The carriers don't want their customers to be customers of other carriers too.
Imagine living in Belgium but frequently traveling to the UK and needing to use a mobile phone in both places. The roaming fees and long distance charges would be outrageous. With a dual sim phone a user could have a Belgium sim card and a UK sim card and be able to use the appropriate sim as needed without having to place the wear and tear on the phone doing sim swaps.
I have tried to find a dual sim phone which functions well in the US. I have a dual sim S9 from the UAE market, but for some reason the data is very slow compared to a single sim S9 for the US market. I also tried a Sonim XP8 which worked well enough until the phone figured out it was in the US and disabled the second sim slot. Apparently Sonim does not want the XP8 to function as a dual sim phone in the US.
T-Mobile has disabled the second sim card slot in the 7t, for whatever reason. I have a 7t coming from direct from the manufacturer and I am excited to see how well it works as a dual sim phone. I have a line on TMO and a line on AT&T, and I don't want to carry two devices if I don't have to.
rjglenn said:
DSDS = Dual sim, dual standby, where you have two sims from two different carriers. When one SIM is active on a call the second goes idle. DSFA = Dual sim full standby, even if one sim is active on a call the other continues to function, although I am not certain of the mechanics of how a user handles two calls at once.
These are very popular with frequent international travelers, or when someone has a company phone and a personal phone but doesn't want to carry two devices. They really haven't caught on in the US because carriers for the most part have similar coverage and don't sell them. The carriers don't want their customers to be customers of other carriers too.
Imagine living in Belgium but frequently traveling to the UK and needing to use a mobile phone in both places. The roaming fees and long distance charges would be outrageous. With a dual sim phone a user could have a Belgium sim card and a UK sim card and be able to use the appropriate sim as needed without having to place the wear and tear on the phone doing sim swaps.
I have tried to find a dual sim phone which functions well in the US. I have a dual sim S9 from the UAE market, but for some reason the data is very slow compared to a single sim S9 for the US market. I also tried a Sonim XP8 which worked well enough until the phone figured out it was in the US and disabled the second sim slot. Apparently Sonim does not want the XP8 to function as a dual sim phone in the US.
T-Mobile has disabled the second sim card slot in the 7t, for whatever reason. I have a 7t coming from direct from the manufacturer and I am excited to see how well it works as a dual sim phone. I have a line on TMO and a line on AT&T, and I don't want to carry two devices if I don't have to.
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Click to collapse
I had no idea. So if I but a dual SIM card tray and flash the international version software on my T-Mobile variant I should be able to have dual SIM functionality?
Sent from my [device_name] using XDA-Developers Legacy app
OuncE718 said:
I had no idea. So if I but a dual SIM card tray and flash the international version software on my T-Mobile variant I should be able to have dual SIM functionality?
Sent from my [device_name] using XDA-Developers Legacy app
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Click to collapse
This has been done on other model phones and should be the same with this one. It was the same price point for me so I just cut TMO out of the deal. Just be careful flashing other firmware, if you are a TMO customer you wouldn't want to loose Band 71.
Has anyone attempted making their single SIM GP6 or GP6P Dual SIM just by changing the tray?
J/Wing before I order tray and find out....
V....1
The 6 Pro (and I believe the 6) are dual sim, its just one sim is an eSim, not a physical sim. Changing the tray will not make any difference as there is not 2 physical sim readers in the phone.
400ixl said:
The 6 Pro (and I believe the 6) are dual sim, its just one sim is an eSim, not a physical sim. Changing the tray will not make any difference as there is not 2 physical sim readers in the phone.
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On OS's like LOS and StratiX I believe it reads 2 IMEI and 1 ESID for eSIM.
It should also be kept in mind that Google Pixels do not have "true" dual sim (sim/sim or sim/esim in this case), but "Dual SIM Dual Standby" (DSDS). So even if the in-built sim card/scanner would be replaced, that doesn't solve the software level limitation to DSDS (only one sim can be used for calls, and the other one for sms and vice versa).
I'd like to buy a OnePLus 11 from amazon but does it support dual active sims? I'd like to be able to load balance my data between the 2 sims from different carriers. Is this possible?
Or combine the data throughput from 2 sims from the same provider. Is this possible?
jadensmith said:
I'd like to buy a OnePLus 11 from amazon but does it support dual active sims? I'd like to be able to load balance my data between the 2 sims from different carriers. Is this possible?
Or combine the data throughput from 2 sims from the same provider. Is this possible?
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Click to collapse
Yes it does. You can use two physical sims or one physical and one esim. I use two physical sims. Verizon and T-Mobile.
As for how dual sims work in Android... You select which sim you want to use data one. You don't use data from both sims at the same time. Though, you can easily pick which one you want the data for.
Both will be able to send and receive calls and texts. Though you pick your primary/default sim for what calls and texts default to.
Thank you!, Now if I can just figure out rooting so I can get call recording going.
That's not dual active. That is dual standby. You won't find any phone with dual active sim in US.
Did you need to buy a dual Sim tray?
Thanks
Oneplus has 3 sim slots: dual nano sim tray and one esim.
Tried to dual esim and sim together but some reason on sim can do nothing but text can't use it for calls since I want esim for data
Well if u use esim and sim, sim can't be Verizon