I decided to get US Unlocked version of Note10+. It has the most comprehensive LTE band compatibility among all models which benefits T-Mobile users. But I do like the dual sim option offered in other oversea models since I need to receive verification text message from another international sim occasionally.
Came across Simore Speed ZX-Twin Galaxy Note 10+ dual sim adapter. Its basically a tiny piggyback that should fit inside a case. Has anyone used similar device? How is battery consumption and LTE speed impact if any?
I looked at a video online. Looks like it works. What I cannot tell is if you can recover calls on both numbers all the time, or if the switch to the second SIM is the equivalent of removing one sim and inserting another. I have the dual SIM F/DS and both numbers make my.phonr ring any time (unless I'm on a call but I can direct the other to VM, or do a follow me to the number I'm on). I agree that it misses certain bands (which I'm sure results in me not getting great data speed in the US), but it's a compromise.
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Anyone tried this? My Excalibur is SIM unlocked and works with a selection of non-3 SIMs, but using a PAYG SIM from 3 says SIM not found (or words to that effect). But, the 3 PAYG SIM works fine in my Nokia N95. I notice that the SIM pinout is different (3 has only 6, but Vodafone and tmobile have 8). I confess I didn't realise that there were still 2 types on SIM in circulation 'cos I thought that all SIMs would work in all mobiles (assuming they're unlocked and all that) these days? I am I just being naive?
Yeh I believe the 3 SIM is for 3G phones only. Whereas the other carriers' sims work in 2G and 3G phones.
When there are no 3G cells in range a 3 phone is supposed to revert to T-mobile's 2G network however I guess they decided to prevent 2G phones doing this as it could get expensive for them if too many customers are using the out-sourced network perhaps.
Cheers for the reply. I since also tried it in an unlocked N73 (a phone that 3 sell or used to anyway) and that can't see the SIM either. So, I reckon it's time to call 3 and tell them I have a dud!
The think that gets me is that the SIM is a different layout to all those I've seen before, but the SIM-only deal says "if you want to keep your existing phone, get a SIM-onloy deal and provided the phone is unlocked, you're good to go" (or words to that effect). Hmmm... I'm not so sure.
One final question: I've hunted around for SIM specs but all I can find is a Russian site giving the PIN layouts of a couple of SIMs. But, can someone point me to a site that lists what kind of SIM (pin layout) is used with which kinds of phone?
EDIT:
Ahh - I thought I was getting one of these:
http://en.wikipedia.org/wiki/USIM
but I actually got one of these:
http://en.wikipedia.org/wiki/RUIM
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.
I was looking around different forums and I keep hearing that the unlocked S8 had an "LTE+" designation in the top right hand corner next to the signal strength meter. My SIM card is about 5 years old. Do I need a new SIM card and/or different APN settings to allow for LTE+ on my Galaxy S9 (which I assume is LTE Advanced (channel bonding))?
Now I know that some things such as WiFi calling and VoLTE won't work on my unlocked version though hopefully it supports all the bands that AT&T uses.
Thanks everyone.
It's been a while since I worked for AT&T but I can say this: why not? They give you the sim for free at any corporate store, so it's not like it's going to cost anything more than gas and time.
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.
Click to expand...
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.
Click to expand...
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.
Hello,
I have done the searching hear and it seems that there is incomplete information at best.
I need a dual sim as I carry a work phone and a personal phone.
I don't want to lose my number so I want to get a minimal plan to receive calls and texts and work number must be ATT.
Currently, I am on Verizon. My understanding is that Verizon is going GSM so will it work in these two variants? Not that it matters, just wondering. Have no problem switching.
If I get these variants am I going to have to always use work around to get google services?
Is google assistant working or not?
Is Samsung and/or Google pay going to be dead?
Is my assertion that paying for the 9760 variant would be of no advantage to the 9750 as 5g will never work with the 9760?
Are these phones ACTIVE dual sim meaning I have two running numbers ACTIVE at all times. No switching.
Are there adapters that anyone knows of that I can covert my current Note 10+ US unlocked to ACTIVE dual sim?
Will I suffer much in Orlando with the missing bands?
I appreciate anyone's experience using these phones in the US market and thoughts/opinions on if it is worth it to switch or just explore Samsung alternatives.
Regards
Hey,
Here you can find some info https://forum.xda-developers.com/galaxy-note-10+/how-to/talk-chinese-version-note10-5g-t3991335/page5
---------- Post added at 04:33 PM ---------- Previous post was at 04:21 PM ----------
jackler1 said:
Hello,
I have done the searching hear and it seems that there is incomplete information at best.
I need a dual sim as I carry a work phone and a personal phone.
I don't want to lose my number so I want to get a minimal plan to receive calls and texts and work number must be ATT.
Currently, I am on Verizon. My understanding is that Verizon is going GSM so will it work in these two variants? Not that it matters, just wondering. Have no problem switching.
If I get these variants am I going to have to always use work around to get google services?
Is google assistant working or not?
Is Samsung and/or Google pay going to be dead?
Is my assertion that paying for the 9760 variant would be of no advantage to the 9750 as 5g will never work with the 9760?
Are these phones ACTIVE dual sim meaning I have two running numbers ACTIVE at all times. No switching.
Are there adapters that anyone knows of that I can covert my current Note 10+ US unlocked to ACTIVE dual sim?
Will I suffer much in Orlando with the missing bands?
I appreciate anyone's experience using these phones in the US market and thoughts/opinions on if it is worth it to switch or just explore Samsung alternatives.
Regards
Click to expand...
Click to collapse
Both 9750 and 9760 are Dual SIM, 9750 is 4G and 9760 is 5G.
I'm not sure how it works with US service providers, however you can check here for the bands they support :
https://www.samsung.com/cn/smartphones/galaxy-note10/specs/ (N9760, don't forget to select Note10+ 5G)
https://www.samsung.com/hk_en/smartphones/galaxy-note10/specs/ (N9750)
On 9750, all the Google apps are pre-installed. On 9760, GMS framework is pre-installed but you need to manually install the apps, and I didn't manage to make Google location history work.
On 9750, maybe you can try Samsung Pay, but on 9760 it won't work.
Don't know if 9760 will work with 5G in the US, however in Europe it's fine. 9760 does not have mm Wave
For Dual SIM, there is an option called as "Dual SIM always on" that says : "Receive calls from both SIM cards. Some limitations may apply", maybe that's what you want.
9750 user here. Google Services is preloaded and working. Phone runs Dual Sim Dual Standby meaning both phone numbers can be reached at all times unless one of the sim is in-call. The option dual sim always on allows you set up call forwarding to the sim that's taking a call so that you can take the phone call from the other sim if needed. For data, only one sim card will be active, you will need to switch sim to use data on another sim. The main catch is that the phone is not compatible with LTE advanced in the US, so you might experience slower speed compared to the US Note10+
My phone N9750 csc BRI (taiwan) . All good