Develop Bugs

[Q] Which one to get? Which version uses what bands?

My S3 mini broke. Now I thought to get an S4 mini, but I can't figure out which one would be the right one.
I am using a plan in the US, ultra mobile, which is on the T-mobile network I think. I also often use my cellphone
abroad with other sim cards. I've seen that there is a 16GB version available - SCH-I435 from Verizon.
I can't figure out what bands this phone uses.
http://en.wikipedia.org/wiki/Samsung_Galaxy_S4_Mini has no info on the bands.
http://www.samsung.com/us/mobile/cell-phones/SCH-I435ZKAVZW-specs says:
LTE: Bands 4/13 CDMA 1x/EVDO Rev A. 850/1900 MHz.
Are there any other 16GB versions? What about root/rom? Any significant differences? Which would you recommend?

Its more like do you want LTE or 3g support, any international unlocked version will support all bands
Afaik verizon its CDMA and dont use a sim card therefore can't switch sim

fburgos said:
Its more like do you want LTE or 3g support, any international unlocked version will support all bands
Afaik verizon its CDMA and dont use a sim card therefore can't switch sim
Click to expand...
Click to collapse
I see. That would be bad. So the verison one can not switch SIM? Which means it can't be used in europe?
This post implies that there is some kind of SIM on the SCH-I435. But I don't exactly understand what works and what doesn't.

ghostwheel said:
I see. That would be bad. So the verison one can not switch SIM? Which means it can't be used in europe?
This post implies that there is some kind of SIM on the SCH-I435. But I don't exactly understand what works and what doesn't.
Click to expand...
Click to collapse
Well Im really not sureim not in the us, but I remember a friend had a Verizon phone and can't be enabled in my country because didn't have Sim slot and all carriers have Sim buy was months ago that could have changed

If the info is of any help, I have a GT-I9195 model (currently connected to Spark, NZ) that claims to have 16G of memory and, in this case at least, is unlocked. It takes a mini-SIM, but that's not unusual now days.
Given that most phones in NZ are sold unlocked and people expect to be able to swap SIMs from one phone to another as well as take their current phones to another network, I'm guessing it supports most bands.

Mike_NZ said:
If the info is of any help, I have a GT-I9195 model (currently connected to Spark, NZ) that claims to have 16G of memory and, in this case at least, is unlocked. It takes a mini-SIM, but that's not unusual now days.
Given that most phones in NZ are sold unlocked and people expect to be able to swap SIMs from one phone to another as well as take their current phones to another network, I'm guessing it supports most bands.
Click to expand...
Click to collapse
Thank you! I'll get that model then.

Dual SIM for US variant of Note 10+?

As the title states, does the US variant of the Note 10+ have dual SIM capabilities? I've tried searching and checking Samsung's website but nothing stated.

nOrbX187 said:
As the title states, does the US variant of the Note 10+ have dual SIM capabilities? I've tried searching and checking Samsung's website but nothing stated.
Click to expand...
Click to collapse
It would be great if that were the case, but I suspect as always, the Exynos versions will be Duos. That's great unless you're on Verizon or Sprint. And in the case of that latter, I feel sorry for (Sprint users!).

I confirmed with Samsung's online chat that the unlocked US version is dual sim.

nOrbX187 said:
As the title states, does the US variant of the Note 10+ have dual SIM capabilities? I've tried searching and checking Samsung's website but nothing stated.
Click to expand...
Click to collapse
Single SIM. The tray doesn't have the layout for 2 cards.

SatanX2112 said:
I confirmed with Samsung's online chat that the unlocked US version is dual sim.
Click to expand...
Click to collapse
They have been wrong about this before. But I will be optimistic as I'm a glass half full guy.
If it has dual sim, true dual sim capability, the sticker on the box will have two IMEIs.
Dual SIM is nice, been using that feature for a while and I like how my XS Max can support Verizon and TMO at the same time. I'd rather have a dual sim tray than the e-sim to avoid a 611 call to change, but it's better than carrying two phones, etc.

says it has a dual sim:https://www.samsung.com/global/galaxy/galaxy-note10/specs/

antawnm26 said:
says it has a dual sim:https://www.samsung.com/global/galaxy/galaxy-note10/specs/
Click to expand...
Click to collapse
That's Samsung global, which is the wrong place to check. Also... "Availability of dual SIM may vary depending on country or carrier."
There U1 N10s have 1 IMEI, which means single SIM. Someone I know with the device says it only accepts 1.

Just got confirmed that the US unlocked model from samsung is NOT dual sim. Sweet jesus, what is with cell manufacturers not releasing dual sim in the us?

I am fairly sure it is a regulation thing here. I forget the specifics though.
Sent from my SM-G900V using Tapatalk

Kaliaila said:
I am fairly sure it is a regulation thing here. I forget the specifics though.
Sent from my SM-G900V using Tapatalk
Click to expand...
Click to collapse
uh no regulations because iPhone has dual sim

SatanX2112 said:
Just got confirmed that the US unlocked model from samsung is NOT dual sim. Sweet jesus, what is with cell manufacturers not releasing dual sim in the us?
Click to expand...
Click to collapse
Get the Exynos, it will be dual sim.
If you're on VZW or Sprint, however, it's not going to work.
antawnm26 said:
uh no regulations because iPhone has dual sim
Click to expand...
Click to collapse
iPhone XS and XS Max are single (physical) SIM with esim capability. The Chinese version has a dual sim tray, however.

cpufrost said:
Get the Exynos, it will be dual sim.
If you're on VZW or Sprint, however, it's not going to work.
iPhone XS and XS Max are single (physical) SIM with esim capability. The Chinese version has a dual sim tray, however.
Click to expand...
Click to collapse
The us variant of the ROG phone has dual SIM however.

Got to play with a note 10 + today. Not sure which model it was but was in the hands of a rep. It's dual SIM with dual imeis.
One of the sim trays doubles as sd card slot.
But the demo my store has is not dual SIM.

Hitman3984 said:
Got to play with a note 10 + today. Not sure which model it was but was in the hands of a rep. It's dual SIM with dual imeis.
One of the sim trays doubles as sd card slot.
But the demo my store has is not dual SIM.
Click to expand...
Click to collapse
Samsung reps usually get International variants. My rep always has had International versions since the s9

The tough question, is Note10+ 5G dual sim?
Sent from my SM-N960F using Tapatalk

jattal said:
The tough question, is Note10+ 5G dual sim?
Sent from my SM-N960F using Tapatalk
Click to expand...
Click to collapse
The one available currently is on Verizon and the answer would be no.

cpufrost said:
The one available currently is on Verizon and the answer would be no.
Click to expand...
Click to collapse
Can confirm

What is the model number of the dual sim variant?
Also do features on those International phones such as Samsung Pay/etc. work in the US
Really wish there was a way to activate dual sim in the US one, i suspect hardware is the same and if the dual sim tray can fit - then it would all be software based.
just a guess and hope

975F/DS
Samsung pay may work depending on which market your unlocked phone was designed for.

See this deal here, brand new N10/10+ great prices. Those are, I think, China/HK dual sim Snapdragon phones, should work well in the US on Tmo bands.
https://www.androidpolice.com/2019/09/14/dual-sim-note10-note10-deal-ebay/
Bands:
SM-N9750/DS (Dual SIM) Snapdragon 855 China Hong Kong Brazil
2G: CDMA 800, GSM 850/900/1800/1900
3G: CDMA2000, TD-SCDMA 1900/2000, UMTS 850/900/1900/2100
4G FDD LTE: B1(2100), B2(1900), B3(1800), B4(AWS), B5(850), B7(2600), B8(900), B12(700), B13(700), B18(800), B19(800), B20(800), B25(1900), B26(850), B28(700)
4G TDD LTE: B34(2010), B38(2600), B39(1900), B40(2300), B41(2500)

Which dual sim ultra version covers AT&T 5G bands?

I need a dual sim device but all of them seem to miss band 30 which is important on ATT. Some of the dual sim are 4G only. Some also have 5G but does anyone know if those 5G bands are the same as the 5G that ATT uses? If so, which exact model?

ekerbuddyeker said:
I need a dual sim device but all of them seem to miss band 30 which is important on ATT. Some of the dual sim are 4G only. Some also have 5G but does anyone know if those 5G bands are the same as the 5G that ATT uses? If so, which exact model?
Click to expand...
Click to collapse
The one ATT sells.
Sent from my SM-G985F using Tapatalk

vash_h said:
The one ATT sells.
Sent from my SM-G985F using Tapatalk
Click to expand...
Click to collapse
Clearly...! But I was asking about dual sim models. All the US models are single sim.
Anyone know of any DUAL sim models that have the US 5G bands?

I am not sure which version support AT&T 5G but from this website(if the information correct) https://www.techwalls.com/samsung-galaxy-s20-model-number-sm-g980-g981-differences/
Hongkong/Taiwan/[China] - Snapdragon support the same network as US model.
There are 2 dual SIM version.
1. International - Asia + Middle east
2. Hongkong/Taiwan/[China]
if you buy the phone from oversea eSIM might be disabled so many people are having this issue.
But why you need dual SIM when you can get eSIM if you buy US version.

vash_h said:
The one ATT sells.
Sent from my SM-G985F using Tapatalk
Click to expand...
Click to collapse
parnunu said:
I am not sure which version support AT&T 5G but from this website(if the information correct) https://www.techwalls.com/samsung-galaxy-s20-model-number-sm-g980-g981-differences/
Hongkong/Taiwan/[China] - Snapdragon support the same network as US model.
There are 2 dual SIM version.
1. International - Asia + Middle east
2. Hongkong/Taiwan/[China]
if you buy the phone from oversea eSIM might be disabled so many people are having this issue.
But why you need dual SIM when you can get eSIM if you buy US version.
Click to expand...
Click to collapse
Thanks. I will check.
I need two lines!

ekerbuddyeker said:
Thanks. I will check.
I need two lines!
Click to expand...
Click to collapse
I'm not sure but with US model you might able to online physical SIM and eSIM at the same time .

vash_h said:
The one ATT sells.
Sent from my SM-G985F using Tapatalk
Click to expand...
Click to collapse
parnunu said:
I'm not sure but with US model you might able to online physical SIM and eSIM at the same time .
Click to expand...
Click to collapse
I believe they only have one IMEI

after some research I think the SM-G9880 is the same as the US device but dual sim. Im not certain as there appears different information out there, but it would be great if someone who has one and is using it in the US on ATT could confirm if it gets US 5G

ekerbuddyeker said:
after some research I think the SM-G9880 is the same as the US device but dual sim. Im not certain as there appears different information out there, but it would be great if someone who has one and is using it in the US on ATT could confirm if it gets US 5G
Click to expand...
Click to collapse
Being on lockdown due to corona virus, I'm getting lazy.
Go Google all the frequencies AT&T operates on.
Go Google all the frequencies the variants of s20 you are interested in.
If all the frequencies uses by AT&T is supported then it's fine.
Sorry, I'm getting lazy from working from home..
Sent from my SM-G985F using Tapatalk

vash_h said:
Being on lockdown due to corona virus, I'm getting lazy.
Go Google all the frequencies AT&T operates on.
Go Google all the frequencies the variants of s20 you are interested in.
If all the frequencies uses by AT&T is supported then it's fine.
Sorry, I'm getting lazy from working from home..
Sent from my SM-G985F using Tapatalk
Click to expand...
Click to collapse
its crazy. there are two different versions of the SM-G988B/DS, one with 5G but no band 30, and one without 5G (but it has band 30). I think. Its so unclear. some websites show it differently.

ekerbuddyeker said:
Clearly...! But I was asking about dual sim models. All the US models are single sim.
Anyone know of any DUAL sim models that have the US 5G bands?
Click to expand...
Click to collapse
Actually ALL s20 models have hybrid dual SIM in the form of a single physical sim and one ESim.

@op did u get the sm9880? If so does it work well with at&t? I was wondering if i can use samkey to change csc to att? Im planning on getting sm9880.

Player04 said:
@op did u get the sm9880? If so does it work well with at&t? I was wondering if i can use samkey to change csc to att? Im planning on getting sm9880.
Click to expand...
Click to collapse
G9880 only supports csc TGY, BRI or CHC.

u can check if it includes att 5g band. BTW G9880 doesn't support mmwave

From Qualcomm devices you can get supported bands and combinations with Scat: https://mt-tech.fi/en/how-to-get-4g...tions-from-your-android-phone/#Scat_(Qualcomm) . Please share your device log to https://cacombos.com/contribute
I have already listed some combinations here: https://cacombos.com/search?key=S20+Ultra .

Primal instinct said:
Actually ALL s20 models have hybrid dual SIM in the form of a single physical sim and one ESim.
Click to expand...
Click to collapse
No US Galaxy devices support eSim. The main US service providers have squashed it. Only iPhone and a couple of other devices can activate eSim in the US.

S20 (0 - Hong Kong variant or F/DS - Dual SIM international) in Canada

Hi,
Does anyone have the 0 or F/DS variant in Canada and do any of the following features work for you? If they do or don't please also post your carrier (I'm on Telus).
- WiFi Calling
- LTE-A
- VoLTE
- e-SIM
Looking at getting the Hong Kong variant since e-SIM isn't even a working function in Canada or the USA for that matter when the iPhone and other phones get it. Every year I push myself closer and closer to just getting an iPhone. Boot loader completely locked down, check. Can't root, check. VoLTE doesn't work unless it's a carrier phone, check. No e-SIM, check. Like what's the point of an Android anymore? All the above features work on an iPhone no matter what carrier (or country for that matter) you bought it from. Samsung is a mush of CSC files, hardware variants, LTE bands...
Thanks,

@Class said:
Hi,
Does anyone have the 0 or F/DS variant in Canada and do any of the following features work for you? If they do or don't please also post your carrier (I'm on Telus).
- WiFi Calling
- LTE-A
- VoLTE
- e-SIM
Looking at getting the Hong Kong variant since e-SIM isn't even a working function in Canada or the USA for that matter when the iPhone and other phones get it. Every year I push myself closer and closer to just getting an iPhone. Boot loader completely locked down, check. Can't root, check. VoLTE doesn't work unless it's a carrier phone, check. No e-SIM, check. Like what's the point of an Android anymore? All the above features work on an iPhone no matter what carrier (or country for that matter) you bought it from. Samsung is a mush of CSC files, hardware variants, LTE bands...
Thanks,
Click to expand...
Click to collapse
No such thing as a perfect device, likely never will be. Best option is to list feature priorities then decide. i have the Hong Kong variant on T-mobile USA. Dual SIM which eliminates the need for an eSIM, bootloader is unlocked, can root the device. WiFi Calling and VoLTE function but no Carrier Aggeration (LTE-A). I wouldn't consider the F/DS variant, it has the Exynos SoC. Not an iPhone fan either, not impressed with their devices or ecosystem.

Thanks for the reply, its nice to see at least VoLTE and WiFi calling work (at least on T-Mobile in the USA). Anyone here on Telus? LTE-A isn't a priority considering a single band is typically fast enough for me these days, if I'm on a lower band it's for a reason (like distance). Does your dual SIM phone still support e-SIM? It's nice just to scan a plan and get going verses hunting the airport / local stores for a SIM.
Priority for me goes:
1) WiFi Calling
2) VoLTE
3) e-SIM
4) LTE-A

@Class said:
Thanks for the reply, its nice to see at least VoLTE and WiFi calling work (at least on T-Mobile in the USA). Anyone here on Telus? LTE-A isn't a priority considering a single band is typically fast enough for me these days, if I'm on a lower band it's for a reason (like distance). Does your dual SIM phone still support e-SIM? It's nice just to scan a plan and get going verses hunting the airport / local stores for a SIM.
Priority for me goes:
1) WiFi Calling
2) VoLTE
3) e-SIM
4) LTE-A
Click to expand...
Click to collapse
eSIM isn't available unless you aquire an International Variant with the Exynos SoC. I'm not aware of any Dual SIM devices which support eSIM. IMHO you have to really want the eSIM to sacrifice a device with a vastly inferior Exynos SoC.

varcor said:
eSIM isn't available unless you aquire an International Variant with the Exynos SoC. I'm not aware of any Dual SIM devices which support eSIM. IMHO you have to really want the eSIM to sacrifice a device with a vastly inferior Exynos SoC.
Click to expand...
Click to collapse
No no, dual SIM would be best in that case. Anyone in Canada can comment on the above?

Does Wifi-Calling work on both SIMs or SIM/eSIM on the S2, if they are from a different region?
Both my providers allow Wifi-Calling abroad.
Can anybody please confirm?

I have a Telus S20+ only support VoLTE, no WIFI-Calling. The reason I get this phone because of esim such a big disappointment.

I have Hongkong variant s20 5G (sm-g9810) using in Sri Lanka.
The phone supports physical dual SIM , dual 5G, VoLTE , VolWIFI.
Only disappointment with Hongkong variant is the lack of e-sim support and Call recording feature.

Question Le2125 dual sim

Like title says, can I put a dual sim tray in my 9 pro north american LE2125 to get dual sim?

as far as i know, only the telekom model (le2127) is not a dual sim device

jamescable said:
Like title says, can I put a dual sim tray in my 9 pro north american LE2125 to get dual sim?
Click to expand...
Click to collapse
Hi, I have an dual sim card tray in my unlocked NA model, the same model you are referring to. i bought it (dual sim tray)off of Amazon from a link someone posted quite a while back when android 12 was first coming out. There was a thread here with the info at the time. I haven't ever got to use the other sim because at the time they had a few uncertainties. I'm still on a android 11 based custom ROM.

jamescable said:
Like title says, can I put a dual sim tray in my 9 pro north american LE2125 to get dual sim?
Click to expand...
Click to collapse
But its already dual

Mr Hassan said:
But its already dual
Click to expand...
Click to collapse
It is? Strange, my sim tray is only a single sim, my ROMs only show 1 sim number. And yes, my phone model IS LE2125 and not the T-Mobile version. I have used the LE2125 msm numerous times and global OOS and never had issues with modem/base bands and stuff so my model is the north american global unlocked

jamescable said:
It is? Strange, my sim tray is only a single sim, my ROMs only show 1 sim number. And yes, my phone model IS LE2125 and not the T-Mobile version. I have used the LE2125 msm numerous times and global OOS and never had issues with modem/base bands and stuff so my model is the north american global unlocked
Click to expand...
Click to collapse
is your device perhaps a telecom device (telecom devices are only single sim) which has been flashed to a global device?

ChrisFeiveel84 said:
is your device perhaps a telecom device (telecom devices are only single sim) which has been flashed to a global device?
Click to expand...
Click to collapse
No, even if it WAS flashed to global, I would have to use the T-Mobile msm, which I don't need or use. Also, don't have radio issues using custom ROMs like T-Mobile users have.

ChrisFeiveel84 said:
as far as i know, only the telekom model (le2127) is not a dual sim device
Click to expand...
Click to collapse
No, LE2115 and LE2125 are both single SIM. In fact the T-Mobile LE2127 is a dual SIM device, one of the reasons people were buying it, but it's totally unstable, as it ships with a single SIM tray and the second is disabled.

I received a couple days ago from Amazon my order for OnePlus 9 Pro 5G LE2123 Dual SIM 12GB+256GB EU/UK Model Global ROM Factory Unlocked International Version. After setting it up and done migrating all my files from my OnePlus 8 Pro Model IN 2025 Dual Sim, I am surprised to see that the item I received is the Model LE2125 which is confirmed Dual Sim.
My previous research all said that Model LE2125 is only Single SIM, but here is my newly delivered Model LE2125 and it is indeed Dual SIM and both SIM cards are confirmed working. Can anyone enlighten or confirm that LE2125 is actually not Single SIM?
My primary TMobile card on Sim 1 is working fine and picking up 5G, while my secondary international roaming card on Sim 2 is also working.
Your feedback and input will be appreciated. Thank you much.

badfinger said:
I received a couple days ago from Amazon my order for OnePlus 9 Pro 5G LE2123 Dual SIM 12GB+256GB EU/UK Model Global ROM Factory Unlocked International Version. After setting it up and done migrating all my files from my OnePlus 8 Pro Model IN 2025 Dual Sim, I am surprised to see that the item I received is the Model LE2125 which is confirmed Dual Sim.
My previous research all said that Model LE2125 is only Single SIM, but here is my newly delivered Model LE2125 and it is indeed Dual SIM and both SIM cards are confirmed working. Can anyone enlighten or confirm that LE2125 is actually not Single SIM?
My primary TMobile card on Sim 1 is working fine and picking up 5G, while my secondary international roaming card on Sim 2 is also working.
Your feedback and input will be appreciated. Thank you much.
Click to expand...
Click to collapse
So, LE2125 is single sim ONLY. I know because I bought a dual sim tray and put 2 active T-Mobile sims in it and only 1 showed up.

But mine is LE2125 and I was surprised to see that it is in fact DUAL SIM, with dual sim tray and both sim cards are working (I put in my primary US T-Mobile sim in tray 1 and my international roaming sim card in tray 2). I bought the device from Amazon Marketplace used or refurbished.
Please see the 3 screenshots I posted showing the ModeLE2125 with 2 Sims and 2 IMEIs in device settings.

badfinger said:
But mine is LE2125 and I was surprised to see that it is in fact DUAL SIM, with dual sim tray and both sim cards are working (I put in my primary US T-Mobile sim in tray 1 and my international roaming sim card in tray 2). I bought the device from Amazon Marketplace used or refurbished.
Please see the 3 screenshots I posted showing the ModeLE2125 with 2 Sims and 2 IMEIs in device settings.
Click to expand...
Click to collapse
I think your software may be LE2125 but its either T-Mobile hardware or EU hardware.

Thank you for your kind observation. But all I can say is that this LE2125 is DUAL SIM with dual sim tray with 2 sim cards working (even my international roaming sim card on sim 2 receives my multiple test sms mesages sent from my US Tmobile number). So, as a hardware this LE2125 is working fine. As far as its sotware is concerned, it's already beyond me how it got into the device.
Thank you anyway for your input.

badfinger said:
Thank you for your kind observation. But all I can say is that this LE2125 is DUAL SIM with dual sim tray with 2 sim cards working (even my international roaming sim card on sim 2 receives my multiple test sms mesages sent from my US Tmobile number). So, as a hardware this LE2125 is working fine. As far as its hardware is concerned, it's already beyond me how it got into the device.
Thank you anyway for your input.
Click to expand...
Click to collapse
What I am meaning is, you phone might actually be LE2123 or LE2127 with north American OOS showing LE2125. Software is not hardware specific. Some ROMs will change your model number

Thank you so much for this info, that software is not hardware specific. This info is very new to me as I thought all along that frequency bands on a device is dictated by the physical hardware itself and not assigned via mere software configuration.

badfinger said:
Thank you so much for this info, that software is not hardware specific. This info is very new to me as I thought all along that frequency bands on a device is dictated by the physical hardware itself and not assigned via mere software configuration.
Click to expand...
Click to collapse
It's not the bands that are being spoken of, it's the hardware model shown in the settings. If you have a full conversion device, it's possible to convert from, say, LE2127 T-Mobile to show LE2125 US unlocked instead.
This is likely what happened because T-Mobile devices sell for cheap because nobody wants to deal with the headaches from them.

Thank you for this valuable information. I thought specific device models made for let's say, Europe, China, US have the radio hardware baked in with specific 5G or 4G LTE bands that work in specific regional markets.

badfinger said:
Thank you for this valuable information. I thought specific device models made for let's say, Europe, China, US have the radio hardware baked in with specific 5G or 4G LTE bands that work in specific regional markets.
Click to expand...
Click to collapse
They DO have this. Changing your model number with software won't change the bands that are supported, it just can change the model number (which is incredibly stupid as it makes it easy for people to sell a phone as something that it's not).

Wow, thank you again. Yes, it looks like it borders on deceitful practice although it is not illegal.

if u wanna be absolutely sure which model u're getting, check the IMEI number against online database.
it will show u exact model.
https://swappa.com/imei
I have LE2125, & i can confirm that it's a single sim device.
though i always if there's any way to make dual sim work in this model.