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Hi
I have the Normal 64 GB N950F Verison of the Note 8. Does anyone know if the DUOS Dual Sim Mode would work if you flash the DUOS Fimrware or maybe
it will work out of the Box if you have the DUOS Sim Adapter ???
Would be great to know that.
yaesudx said:
Hi
I have the Normal 64 GB N950F Verison of the Note 8. Does anyone know if the DUOS Dual Sim Mode would work if you flash the DUOS Fimrware or maybe
it will work out of the Box if you have the DUOS Sim Adapter ???
Would be great to know that.
Click to expand...
Click to collapse
Nope that is not possible coz of firmware specifics and hardware mismatch. You would be bricking your $900 device by doing that
drmodify said:
Nope that is not possible coz of firmware specifics and hardware mismatch. You would be bricking your $900 device by doing that
Click to expand...
Click to collapse
Sorry but your totally incorrect.
You can flash F firmware on an FD and vice versa. I did it lots of times on my dual sim note 7 and s8 plus as well as flashing FD firmware on my single sim s7 edge
To put it bluntly the dual sim and single sim firmware are the same thing and can be cross flashed without issue.
That said if you have a single sim device and think flashing dual sim firmware will give you dual sim capability you are very technically challenged lol.
sent from my Note FE
force70 said:
Sorry but your totally incorrect.
You can flash F firmware on an FD and vice versa. I did it lots of times on my dual sim note 7 and s8 plus as well as flashing FD firmware on my single sim s7 edge
To put it bluntly the dual sim and single sim firmware are the same thing and can be cross flashed without issue.
That said if you have a single sim device and think flashing dual sim firmware will give you dual sim capability you are very technically challenged lol.
sent from my Note FE
Click to expand...
Click to collapse
They're not 'the same thing' or you wouldn't see any difference from flashing one or the other. However, you are right that you can use either one on either device (including N firmware on the F/FD devices and vice versa as they are all physically the same components).
If you are already rooted, the only thing you would need to do to swap to dual sim is buy the dual sim tray (I think they have some on ebay now), and replace your existing lib-sec-ril files under /system/lib and /system/lib64 with those from the dual sim model, as well as add the dsds RIL file if it is missing (my 950N didn't have it). The lib-sec-ril file seems to ignore your build.prop setting as mine is set to ss (single SIM) and swapping to the 950 FD RIL library automatically switched my phone to dual-SIM mode upon bootup.
Hey Guys
For now i am not rooted on my Note 8 just wanted to know if this would work. To bad no one has tryed before i searched also for some S8 Threads etc. The Problem is there is no SIM Tray from the DUOS
Version available to buy. At least i haven't found one yet. That was my intention to test this out i think that would help many people out there.
UPDATE:
Great thanks for the Tip i searched now in Ebay.com there are some Dual Sim Note 8 Sim slots available from china. I will order some and than i hope there is some more Custom Roms out and maybe some tutorial available
yaesudx said:
Hi
I have the Normal 64 GB N950F Verison of the Note 8. Does anyone know if the DUOS Dual Sim Mode would work if you flash the DUOS Fimrware or maybe
it will work out of the Box if you have the DUOS Sim Adapter ???
Would be great to know that.
Click to expand...
Click to collapse
Won't be possible.
Even if you get the SIM tray and pop 2 SIMs into the phone, the board is different, the EFS partition is different and there is only one IMEI on the N950F whereas the DS model has 2 IMEIs.
force70 said:
Sorry but your totally incorrect.
You can flash F firmware on an FD and vice versa. I did it lots of times on my dual sim note 7 and s8 plus as well as flashing FD firmware on my single sim s7 edge
To put it bluntly the dual sim and single sim firmware are the same thing and can be cross flashed without issue.
That said if you have a single sim device and think flashing dual sim firmware will give you dual sim capability you are very technically challenged lol.
sent from my Note FE
Click to expand...
Click to collapse
wow that was possible? cool
Well in my experience, I flashed the note 2 duos firmware to the regular note 2 and guess what happened
drmodify said:
wow that was possible? cool
Well in my experience, I flashed the note 2 duos firmware to the regular note 2 and guess what happened
Click to expand...
Click to collapse
You cant compare an ancient device (still have my note 2 though) to current state.
Alot has changed, some good...some bad lol
Any news on it?
Someone mentioned he tested with dual sim tray, he changed the sim card to another slot, it's working.
Probably, the hardware is totally same,
I remember there is some dual-sim version, but same model SM-N950F in some country.
---------- Post added at 13:43 ---------- Previous post was at 13:41 ----------
Probably, firmware will check the model and pop up the sim card management
it's not as easy as just popping in a dual tray and 2 sims, I've tried it, with sim in tray 2 it looks like connected to network but does not receive calls, you would need to find out how to either enable second imei if it is already there or apply one, and DON'T just use the same for both sim slots if you like your phone, not in Europe anyway
j_hansen said:
it's not as easy as just popping in a dual tray and 2 sims, I've tried it, with sim in tray 2 it looks like connected to network but does not receive calls, you would need to find out how to either enable second imei if it is already there or apply one, and DON'T just use the same for both sim slots if you like your phone, not in Europe anyway
Click to expand...
Click to collapse
Europe will block the IMEI if you are using same IMEI for both slots?
I'm going to write the same IMEI to second sim on my N950F..
hinnn said:
Europe will block the IMEI if you are using same IMEI for both slots?
I'm going to write the same IMEI to second sim on my N950F..
Click to expand...
Click to collapse
I can't that 100% that it WILL happen but it is definitely a big risk as it could look to the network providers that 2 different numbers are using same IMEI and then automatically get blocked, ALL EU mobile service providers share the information so even if you used sim cards from different providers you could see the imei blocked within a few days
j_hansen said:
I can't that 100% that it WILL happen but it is definitely a big risk as it could look to the network providers that 2 different numbers are using same IMEI and then automatically get blocked, ALL EU mobile service providers share the information so even if you used sim cards from different providers you could see the imei blocked within a few days
Click to expand...
Click to collapse
This is not true,
I have mod a P8 lite from single sim to dual with one IMEI and using one UK 3 card and one Greece Cosmote card for a year now which they share the same IMEI without any issue.
Regards
holifo said:
This is not true,
I have mod a P8 lite from single sim to dual with one IMEI and using one UK 3 card and one Greece Cosmote card for a year now which they share the same IMEI without any issue.
Regards
Click to expand...
Click to collapse
Thanks for your confirmation.
---------- Post added at 20:15 ---------- Previous post was at 20:13 ----------
j_hansen said:
I can't that 100% that it WILL happen but it is definitely a big risk as it could look to the network providers that 2 different numbers are using same IMEI and then automatically get blocked, ALL EU mobile service providers share the information so even if you used sim cards from different providers you could see the imei blocked within a few days
Click to expand...
Click to collapse
Thank you,
I know even in Australia, there is a big database which sharing with multiple providers, but it's being used for stolen phones, and not sure if it's working now or not.
hinnn said:
Europe will block the IMEI if you are using same IMEI for both slots?
I'm going to write the same IMEI to second sim on my N950F..
Click to expand...
Click to collapse
holifo said:
This is not true,
I have mod a P8 lite from single sim to dual with one IMEI and using one UK 3 card and one Greece Cosmote card for a year now which they share the same IMEI without any issue.
Regards
Click to expand...
Click to collapse
Greece Cosmote might not be included in the partnership between the mobile service providers, there is a reason the dual sim phones have 2 imei numbers, I'm sure you can make it work but why run the risk and use same imei when you can buy an old phone for at tenner and use the imei from that
j_hansen said:
Greece Cosmote might not be included in the partnership between the mobile service providers, there is a reason the dual sim phones have 2 imei numbers, I'm sure you can make it work but why run the risk and use same imei when you can buy an old phone for at tenner and use the imei from that
Click to expand...
Click to collapse
The problem is to be able to modify the second imei even if it is the same as the first ... I would be a tester if I know how to do it [emoji848][emoji848][emoji848] ... Sorry for the language
Enviado desde mi SM-N950F mediante Tapatalk
j_hansen said:
Greece Cosmote might not be included in the partnership between the mobile service providers, there is a reason the dual sim phones have 2 imei numbers, I'm sure you can make it work but why run the risk and use same imei when you can buy an old phone for at tenner and use the imei from that
Click to expand...
Click to collapse
Number means IMEI,
I asked same question today, they said it's much easier to copy the number from sim 1 to sim 2, they probably can finish the job in 30 mins.
So far they can NOT assign a different number to sim 2 only, if you need different number for sim 2, they need connect to some box and some server to register the number first, could be 3 days.
The BIG issue is both the number of SIM 1 and SIM 2 will be changed, so you will lose the warranty.
And the second way needs more money, would be five times or more.
hinnn said:
Number means IMEI,
I asked same question today, they said it's much easier to copy the number from sim 1 to sim 2, they probably can finish the job in 30 mins.
So far they can NOT assign a different number to sim 2 only, if you need different number for sim 2, they need connect to some box and some server to register the number first, could be 3 days.
The BIG issue is both the number of SIM 1 and SIM 2 will be changed, so you will lose the warranty.
And the second way needs more money, would be five times or more.
Click to expand...
Click to collapse
To copy the imei number of the sim 1 to the sim 2 I always need a box I can do it in another way?.. Thanks!
Enviado desde mi SM-N950F mediante Tapatalk
Francescorm76 said:
The problem is to be able to modify the second imei even if it is the same as the first ... I would be a tester if I know how to do it [emoji848][emoji848][emoji848] ... Sorry for the language
Enviado desde mi SM-N950F mediante Tapatalk
Click to expand...
Click to collapse
Buy some tool box for SAMSUNG like z3x, around USD 200 or more, then you can do that.
---------- Post added at 21:10 ---------- Previous post was at 21:08 ----------
Francescorm76 said:
To copy the imei number of the sim 1 to the sim 2 I always need a box I can do it in another way?.. Thanks!
Enviado desde mi SM-N950F mediante Tapatalk
Click to expand...
Click to collapse
Okay...I assumed you can change the efs if you already rooted your phone, but I didn't test, just need keep samsung pay.
It's too technical for me, sorry.
are there any real differences between the dual sim and single sim? besides the obvious 2 sims vs 1 sim difference lol.
what about differences between the models (clt-al00, clt-l29, clt-l09, etc)? if it helps, I am in the USA and T-mobile. I am just trying to find the best one that covers most bands if not all and prefer dual sim. any advice and help is appreciated thank you in advance
Yes there is a difference.
The difference is one accepts one sim card and the other accepts two sim cards
dieselhazza said:
Yes there is a difference.
The difference is one accepts one sim card and the other accepts two sim cards
Click to expand...
Click to collapse
Thank u for ur reply.. But I have already stated the obvious 2 sims and 1 SIM differences. Anything else besides that?
It might be possible that the only difference is the card slot. It might still work with 2 sim cards with the right sim card adapter for two sims. Afaik it worked for older models.
dieselhazza said:
Yes there is a difference.
The difference is one accepts one sim card and the other accepts two sim cards
Click to expand...
Click to collapse
paysen said:
It might be possible that the only difference is the card slot. It might still work with 2 sim cards with the right sim card adapter for two sims. Afaik it worked for older models.
Click to expand...
Click to collapse
Thank u.. Do u know if there's any difference from international and global? I'm trying to buy the p20 pro and I dont wanna end up buying one that doesnt work for my service provider in USA.
I have some relevant questions/thoughts on this. I noticed that some phones are listed as having band 41 and some are not (on eBay, varying model numbers of this phone). Now that T-Mobile might be roaming on Sprint and visa versa, band 41 does actually make a difference since the OP is using the phone on T-Mobile. Does anyone know if this is just a mistake on the listings? The official Huawei site lists band 40, but not band 41.
-Collin-
CollinFX45 said:
I have some relevant questions/thoughts on this. I noticed that some phones are listed as having band 41 and some are not (on eBay, varying model numbers of this phone). Now that T-Mobile might be roaming on Sprint and visa versa, band 41 does actually make a difference since the OP is using the phone on T-Mobile. Does anyone know if this is just a mistake on the listings? The official Huawei site lists band 40, but not band 41.
-Collin-
Click to expand...
Click to collapse
Band 41 is listed as well at least for some models. https://www.devicespecifications.com/en/model/6fe84965 another good site to see the difference between the different models is http://www.phonemore.com/huawei-p20-pro/models/1817 this one includes the different models, not all though as CLT-L04 is not included, and their specs including the bands for each of the different models. Some of them even support CDMA so in theory should be compatible with Verizon or Sprint.
I have CLT-L04
and i cant find any info about it!!!
Mine has Cat 16/ Cat 18, and it came with US charger, dual Sims and Google now. Model Number CLT-L29. Bought it from sobeonline1 on eBay. https://www.dropbox.com/s/wn539su2m077hpu/Screenshot_20180516-125141.jpg?dl=0
chrisrk45 said:
I have CLT-L04
and i cant find any info about it!!!
Click to expand...
Click to collapse
CLT-L04 is intended for the Canadian market. L29 is not so it may not have the LTE capabilities in North America while L04 would.
I thought it wasn't for sale until today (the 17th).
Wiggums said:
CLT-L04 is intended for the Canadian market. L29 is not so it may not have the LTE capabilities in North America while L04 would.
I thought it wasn't for sale until today (the 17th).
Click to expand...
Click to collapse
Thanks fot the info!!!!
Just wondering will dual Sim adapter work with single Sim phone? No software that indicates any Sim settings
Single sim doesn't get updates.
I'd like to jump in here. I just got the CLT-L04 today. I just started working for a Canadian company this week and I will be stationed in the US in Atlanta. I want dual SIM capability so that I can keep my personal phone number but not have to carry 2 devices. he SIM card tray only came with the ability to support a singel SIM card. Can I just order a dual SIM card carrier? is there anything special I need to know or do on the phone to support dual SIM's?
David Horn said:
Single sim doesn't get updates.
Click to expand...
Click to collapse
My single SIM CLT-L04 already got an update once. C792. Not carrier branded.
timkenyon said:
I'd like to jump in here. I just got the CLT-L04 today. I just started working for a Canadian company this week and I will be stationed in the US in Atlanta. I want dual SIM capability so that I can keep my personal phone number but not have to carry 2 devices. he SIM card tray only came with the ability to support a singel SIM card. Can I just order a dual SIM card carrier? is there anything special I need to know or do on the phone to support dual SIM's?
Click to expand...
Click to collapse
You need to convert your phone to dual SIM variant using paid software (which may require a bootloader unlock code that Huawei no longer provides) and then use a dual SIM tray.
I did the above and my single SIM phone is now a fully functioning dual SIM phone. There's really no difference between the two variants other than software and that tray. The tray alone will not work.
Hello,
I am willing to get the new Xperia 1 II. I am living abroad, and for many reasons, I kept my native country's sim to keep my line open. Currently, I own two phones to have both lines up. But this new Xperia seams to be released with a variant getting dual sim feature which is what I am looking for so I could replace my LG V20 and LG G8 for this amazing phone.
I read online that this phone comes with different variants:
XQ-AT51
XQ-AT52
XQ-AT72
SO-51A (NTT DoCoMo)
SOG01 (AU/Okinawa Cellular)
On this website https://www.xperiablog.net/2020/04/...eria-model-number-structure-for-2020-devices/ they tend to say that this XQ-AT52 model would be the dual sim variant, but I cannot find any online resources to confirm this.
Is there anybody who knows yet what is the dual sim variant so I don't get wrong while ordering?
(I really hope it's not only the korean version to get this dual sim variant...)
Thanks!
Hello,
I come back to you guys to have some updates about this topic since now they released the phone and preorders are available, maybe someone has some details about this feature.
I really want to know if the variant sold in Europe is supporting 2 sim.
On GSMArena, they list the phone as Hybrid Dual SIM (Nano-SIM, dual stand-by) but on sony.de, sony.fr, sony.it they list it as SIM NUMBER
Single SIM.
On B&H bhphotovideo, the phone is proposed as Sony Xperia 1 II Dual-SIM 256GB Smartphone (Unlocked).
Why would they sell a dual sim capable in America and a single sim in Europe?
asaural said:
Hello,
I am willing to get the new Xperia 1 II. I am living abroad, and for many reasons, I kept my native country's sim to keep my line open. Currently, I own two phones to have both lines up. But this new Xperia seams to be released with a variant getting dual sim feature which is what I am looking for so I could replace my LG V20 and LG G8 for this amazing phone.
I read online that this phone comes with different variants:
XQ-AT51
XQ-AT52
XQ-AT72
SO-51A (NTT DoCoMo)
SOG01 (AU/Okinawa Cellular)
On this website https://www.xperiablog.net/2020/04/...eria-model-number-structure-for-2020-devices/ they tend to say that this XQ-AT52 model would be the dual sim variant, but I cannot find any online resources to confirm this.
Is there anybody who knows yet what is the dual sim variant so I don't get wrong while ordering?
(I really hope it's not only the korean version to get this dual sim variant...)
Thanks!
Click to expand...
Click to collapse
The model selling in Taiwan is XQ-AT52 with dual sim ( 5G/4G compatible ).
If you put 2 sims, it runs in 4G mode, 5G is only working when only one sim card inserted.
5G I only works with 1 SIM card inserted? That's not very good design.
Also, can you please try to switch between SIM card for data, does it require a reboot to active? I used to own Sony phones and they all require reboot when switching between SIMs, which is very inconvenience.
I use other brand dual SIM phone now and they don't require reboot when switching between SIM.
kevin3688 said:
The model selling in Taiwan is XQ-AT52 with dual sim ( 5G/4G compatible ).
If you put 2 sims, it runs in 4G mode, 5G is only working when only one sim card inserted.
Click to expand...
Click to collapse
Do you know if the only difference between the single sim and duel sim variations are the sim tray provided with the phone and the software installed. I am wondering if I got a single sim version, if I could flash the international firmware and replace the tray with a dual sim version
solos2 said:
5G I only works with 1 SIM card inserted? That's not very good design.
Also, can you please try to switch between SIM card for data, does it require a reboot to active? I used to own Sony phones and they all require reboot when switching between SIMs, which is very inconvenience.
I use other brand dual SIM phone now and they don't require reboot when switching between SIM.
Click to expand...
Click to collapse
I've swapped sim in mine, doesn't need to reboot.
Fatmonk8 said:
Do you know if the only difference between the single sim and duel sim variations are the sim tray provided with the phone and the software installed. I am wondering if I got a single sim version, if I could flash the international firmware and replace the tray with a dual sim version
Click to expand...
Click to collapse
Normally it should work as previously it was like that.
but the SIM holder looks different to Xperia 1 dual Version
You don't need to reboot to change or swap sim, that's what i heard and that's why you don't need a pin to open the tray.. you just need to pull it.
I guess the tray for single sim is different but software is different too.. means software can handle dual sim..
I know some people with Samsung single sim model, they put 1 sim in tray and stick the second sim on the microsd. It becomes a dual sim with micro sd.
But you have to be very good to unstick the sim from original card and stick on the microsd without damaging your sim
HI all
has anyone found a way to keep both the Sims running even when the 1st has 5G on.. Like let the 2nd sim run at 4G or 3G atleast.. but why does the 2nd sim has to be off or go off when the first one runs at 5G.
I keep wanting to use 5G at all times on my first sim.. but why should my 2nd SIM stay off. this is mind boggling why would SONY implement this on a Premium Flagship while others Like Xiaomi and others have better sim management options even when 5G
this is the only thing stopping me from getting this phone although i love it.
on a separate note.
Also someone has any idea if the Special Frosted edition of this phone releasing in Japan with 12GB RAM will be dual or single sim ?
Hi There,
I am a complete and utter n00b so apologies if this question is in the wrong place or has already been answered etc but I have a Huawei P30 Pro which is version VOG-L09 which means, it has no dual sim capability, welp.
I understand the VOG-L29 does have dual sim capability so I was wondering if its possible to manipulate this using some software / firmware flashing or if there is some hardware involved which makes it impossible.
Just to be clear, I have both sim cards in the phone, but the phone does not recognise my 2nd sim card.
My UK network has decided to restrict my roaming (as I live in Spain) due to stupid Brexit, so I now have a Spanish sim card but would prefer to dual wield them if possible.
Any help would be very much appreciated!
Thanks in advance
I have done this with Mate 10pro, a few years back.
It was possible with funkyhuawei but it is a paid service. maybe you could ask them
I needed a new sim tray as well, found one cheap on eBay.
ladodo said:
I have done this with Mate 10pro, a few years back.
It was possible with funkyhuawei but it is a paid service. maybe you could ask them
I needed a new sim tray as well, found one cheap on eBay.
Click to expand...
Click to collapse
Thanks! The sim tray is actually already set up for it, I have 2 sim cards in there right now but the phone just doesn't recognize it.
Will have a look for funkyhuawei now, thanks!
Is there a Dual SIM Snapdragon S21 Ultra model? If yes, what’s the model number?
The specs at GSMArena say:
Single SIM (Nano-SIM and/or eSIM) or Dual SIM (Nano-SIM and/or eSIM, dual stand-by)
So it looks like at least one of the models is dual sim (and it's mentioned in the description on the Samsung website) - but there's no indication which model it might be.
Samsung support said my unlocked 512gb will be dual sim - but it took a lot of time on the phone researching and calling other people for them to find that info. Not even sure if it’s true at this point. It’s very strange how this is so difficult to figure out
HK unit should have dual sim according to my supplier.
Action123 said:
Samsung support said my unlocked 512gb will be dual sim - but it took a lot of time on the phone researching and calling other people for them to find that info. Not even sure if it’s true at this point. It’s very strange how this is so difficult to figure out
Click to expand...
Click to collapse
Are you purchasing it in the US from Samsung.com? Did you buy it already? Is the Dual SIM feature active or did these scummy carriers manage to bully Samsung into not selling a single Dual SIM phone into the market?
China/HK version is SD888 + dual sim
prodigiez said:
China/HK version is SD888 + dual sim
Click to expand...
Click to collapse
If I buy it in the US, will it change my updates from Samsung?
Dont waste your money getting TGY version in US.
prodigiez said:
Dont waste your money getting TGY version in US.
Click to expand...
Click to collapse
Why? What's bad about it?
It doesn't have software updates at the same rate?
I wonder if local COVID tracking support is present?
Yes. Hongkong version always release with dual sim snapdragon
Galaxy S21 Ultra 5G SM-G9980: https://samfw.com/firmware/SM-G9980
Yes, it supports dual sim
The Hong Kong variant has Dual Physical SIM's but no E-Sim. Regardless of which country you use it in you'll get timely updates as they are provided by Samsung, not your local service provider.
prodigiez said:
Dont waste your money getting TGY version in US.
Click to expand...
Click to collapse
Why not? No carrier bloatware, dual sim's, unlocked bootloader, fast updates and the only call features you won't have are CA and 5G which at this time is more of a promotional gimmick than a useful feature.
varcor said:
Why not? No carrier bloatware, dual sim's, unlocked bootloader, fast updates and the only call features you won't have are CA and 5G which at this time is more of a promotional gimmick than a useful feature.
Click to expand...
Click to collapse
What about the US unlocked version? I don't care about unlocked bootloader, I know how to remove/disable all bloatware. And, the speed of updates don't matter as much as they used to. This isn't 2012.
In India we have the dual sim exynos variant (Sim1 - PHY, Sim2 - PHY or esim) if you put in a physical Sim in the 2nd Sim position then esim gets disabled. If you use esim then the 2nd Sim is disabled.
nixnixnixnix4 said:
What about the US unlocked version? I don't care about unlocked bootloader, I know how to remove/disable all bloatware. And, the speed of updates don't matter as much as they used to. This isn't 2012.
Click to expand...
Click to collapse
Nope. I mean, I wasn't aware that it doesn't support dual physical SIM. But right on their website on the S21U page, it says that no US versions support eSIM. So I'm gonna go ahead and say that the answer is, unfortunately, no =/
But the good thing is that (probably with any unlocked version of the phone) you can just carry around both of your SIM cards and the sim pin tool in a really small, durable canister... You'd just have to turn off the phone and then swap the SIM cards whenever you wanted to change your service. It'd be slightly more annoying, but still doable!
nixnixnixnix4 said:
Are you purchasing it in the US from Samsung.com? Did you buy it already? Is the Dual SIM feature active or did these scummy carriers manage to bully Samsung into not selling a single Dual SIM phone into the market?
Click to expand...
Click to collapse
from what I can gather, after a LOT of trying . . . there is no dual sim US version samsung phone. This from a lot of searching and phone conversations with several tech and sales personnel on the phone with Samsung. For this reason, I bought a non US version which broke the Samsung Health Monitor app and does not work for 5G within the USA. other than that it seems to be behaving nicely on the Tmobile US based network.
NippleSauce said:
Nope. I mean, I wasn't aware that it doesn't support dual physical SIM. But right on their website on the S21U page, it says that no US versions support eSIM. So I'm gonna go ahead and say that the answer is, unfortunately, no =/
But the good thing is that (probably with any unlocked version of the phone) you can just carry around both of your SIM cards and the sim pin tool in a really small, durable canister... You'd just have to turn off the phone and then swap the SIM cards whenever you wanted to change your service. It'd be slightly more annoying, but still doable!
Click to expand...
Click to collapse
Ive tried that solution and its a lot more problematic than it might seem. I need the extra sim because I travel overseas and my US carrier starts complaining when my roaming data goes large (even tho they advertise "unlimited"). that means i would need to remember to turn off mobile data everytime i change the card. also the tool gets lost and bent and you can actually bend or break those sim trays after a lot of changing . . . not to mention losing sim cards on a bumpy train or taxi. I hate to invoke Murphy, but you can be assured that when a super important call is trying to come in it will not be on the line associated with the sim card currently installed. Sim swapping can also cause minor problems with messaging apps like whatsapp and telegram that could be a whole new thread. The only real viable solution for a frequent traveler is a dual sim phone with sim 2 used for mobile data in the locale physically present in. Second to that is carrying two phones. Least desireable (at least for me) is frequent sim swapping. That's my experience and humble opinion after years of very heavy international travel.
SM-G9980 has dual SIM fully working. I know for a fact because that's the version I have. }
I'm from Chile and the phone does everything I want it to do.
I have the 9980. It is fully dual sim but does not do 5G in the US. Occasionally I don't get data in some places in the US even when I have 5 bars. I'm guessing there are other bands this device misses. But that's rare. Everything is a compromise in life!
One good piece of news is that the T-MOBILE NOTE20 ULTRA now has it's esim activated. So if you are predominantly in the US this is the combo you need as it's dual sim and 5G in the US. The hope is that they do this with more devices including the s21.