Develop Bugs

Unlock 2G network limitation for 2nd SIM

Hello,
It seems AT&T has shut down 2G network because the 2nd SIM card on my Lumia 950XL Dual-SIM phone has no more network. Is there any hack to unlock the 2G limitation for 2nd SIM card so I can connect to at least 3G network for text message(not necessary for the voice/data)?
Thanks

Dual SIM dual standby http://forums.windowscentral.com/mi...398224-950xl-really-dual-sim-dual-active.html

augustinionut said:
Dual SIM dual standby http://forums.windowscentral.com/mi...398224-950xl-really-dual-sim-dual-active.html
Click to expand...
Click to collapse
I knew it is dual-standby only devices that is why asking if there is a hack to unlock the restrictions. I believe W10M OS restricts the ability to be dual active.
Sent from my Nexus 6 using XDA-Developers Legacy app

Holly ****. Is hardware stuff, not software.

You can't have 3G on SIM2 if there is a 3G/LTE active on SIM2.

djtonka said:
You can't have 3G on SIM2 if there is a 3G/LTE active on SIM2.
Click to expand...
Click to collapse
.... SIM what?

augustinionut said:
Holly ****. Is hardware stuff, not software.
Click to expand...
Click to collapse
Do you have any proof that it is hardware problem? There are some functionalities are locked by OS, for example LED for notifications even though the hardware is there. It might need antenna but the 1st thing I want to know is OS limitation

djtonka said:
You can't have 3G on SIM2 if there is a 3G/LTE active on SIM2.
Click to expand...
Click to collapse
That is because the functionality is restricted for this particular phone. There are some dual-SIM phones you can have both SIM cards with 3G/LTE

HTC_FUZE said:
That is because the functionality is restricted for this particular phone. There are some dual-SIM phones you can have both SIM cards with 3G/LTE
Click to expand...
Click to collapse
name it

djtonka said:
name it
Click to expand...
Click to collapse
Huawei Honor 7 dual-Sim version. I think one ZTE mobile phone supports too, but cannot remember the model.
Sent from my Nexus 6 using XDA-Developers Legacy app

eSIM on S20+

Hi All,
I just took delivery of the S20+
Mine came with 1 esim, 1 dedicated simcard slot (SIM1)and 1 simcard/sdcard (SIM2) hybrid tray.
went ahead to sign up for esim for the network i use most often.
Now, i have a question. What happens if i factory reset the phone. will the esim "profiles" remain or do i need to drop by the network provider and request another esim activation code?
This is because i have the habit of performing a factory reset on my android phones after a major firmware update, or every 6 months (or if i feel the phone feel sluggish).
Any idea guys? i cant seem to find information on this anywhere. is the esim data stored on the phone data or in the esim itself.

aah.. found it.. if you go to the setting to factory data reset, at the bottom there is a checkbox to select if you want to retain the esim. tick if you do not want to.. and it is unticked by default (keep your esim data)

Apparently the unlocked US version don’t have eSIM?

sprke said:
Apparently the unlocked US version don’t have eSIM?
Click to expand...
Click to collapse
My unlocked S20+ didn't come with a sim card. I used the Verizon sim card from my S9+ in it. Works perfectly. If you go to Verizon and ask for a sim card for your new phone, they charge you like $40 for activation. I paid nothing.

sprke said:
Apparently the unlocked US version don’t have eSIM?
Click to expand...
Click to collapse
U can check it out on your phone settings.
Go to settings - connections - SIM card manager.
If your device has esim, you will see SIM cards section and a Esim section.
I attached how mine looks like. View attachment 4967275
Sent from my SM-G985F using Tapatalk

Is it possible to use 2 sim cards AND an eSIM, thus allowing to have 3 phones lines ?

vash_h said:
U can check it out on your phone settings.
Go to settings - connections - SIM card manager.
If your device has esim, you will see SIM cards section and a Esim section.
I attached how mine looks like.
Click to expand...
Click to collapse
That doesn't show up on my unlocked S20+ 5G US variant

That's pretty neat having both hybrid and esim.
Essentially you could have 1 esim and sim card plus sd card.
I've ordered mine from Vodafone hope it has the same options.

Franzferdinan51 said:
That doesn't show up on my unlocked S20+ 5G US variant
Click to expand...
Click to collapse
Then I guess yours do not come with esim..
Sent from my SM-G985F using Tapatalk

riz157 said:
That's pretty neat having both hybrid and esim.
Essentially you could have 1 esim and sim card plus sd card.
I've ordered mine from Vodafone hope it has the same options.
Click to expand...
Click to collapse
Yes.. Exactly. I love it.
Sent from my SM-G985F using Tapatalk

vodafone UK doesnt support esim on their phones yet (and they didnt sound keen on changing that soon) which is crazy but i think they are afraid people will start using dual networks and they're not happy about that

Glad I bought S20 plus rather then waiting for the ultra version.
More sleek and practical.
Vodafone phones come with esim option also for those who might be wondering.

LAKEPOWELL said:
Is it possible to use 2 sim cards AND an eSIM, thus allowing to have 3 phones lines ?
Click to expand...
Click to collapse
Nope. Only 2. But u can have both sims and registered esim profile in the phone but at any time only 2 can be active.
To be precise only esim and sim1 or sim1 and sim2. Sim2 can't be used together with esim.
Sent from my SM-G985F using Tapatalk

I bought an S20 plus from Samsung and on the box there are two IME numbers. Just one IME is showing in settings. Does this mean it is software disabled? If so I wonder when, and if, the will activate it.

capricrn1232903 said:
I bought an S20 plus from Samsung and on the box there are two IME numbers. Just one IME is showing in settings. Does this mean it is software disabled? If so I wonder when, and if, the will activate it.
Click to expand...
Click to collapse
Will be useful to know which variant of s20+ you have there. Samsung released many variants.
Single sim
Dual sim
Dual sim with esim
This 3 in 4g and 5g.
Mine is 4g dual sim with esim.
Sm-g985f/ds
Sim2 slot shares same imei with esim.
So I'm using sim1, microsd card and an esim.
Imei won't show up on settings unless it's active. As in having a sim card in slot 2 or esim profile on.
If u don't have esim set up you'll only see the add mobile plan option if your phone supports esim.
Sent from my SM-G985F using Tapatalk
View attachment 4981269

vash_h said:
Will be useful to know which variant of s20+ you have there. Samsung released many variants.
Single sim
Dual sim
Dual sim with esim
This 3 in 4g and 5g.
Mine is 4g dual sim with esim.
Sm-g985f/ds
Sim2 slot shares same imei with esim.
So I'm using sim1, microsd card and an esim.
Imei won't show up on settings unless it's active. As in having a sim card in slot 2 or esim profile on.
If u don't have esim set up you'll only see the add mobile plan option if your phone supports esim.
Sent from my SM-G985F using Tapatalk
View attachment 4981269
Click to expand...
Click to collapse
My model number is SM-G986U. It's 5g if that helps It has two IME numbers on the box. It's on the Verizon network.

capricrn1232903 said:
My model number is SM-G986U. It's 5g if that helps It has two IME numbers on the box. It's on the Verizon network.
Click to expand...
Click to collapse
The g986U is American variant with single sim card. It's not the dual sim version im afraid.
Sent from my SM-G985F using Tapatalk

I wonder why it has two IME numbers on the box then. I wonder if it's just software disabled.

capricrn1232903 said:
I wonder why it has two IME numbers on the box then. I wonder if it's just software disabled.
Click to expand...
Click to collapse
It could be for the esim. Try going to settings - connections - sim card manager.
Can you screen shot and share here the page? If your phone has esim support, it would show there.
It should look something like this attachment.
Sent from my SM-G985F using Tapatalk
View attachment 4981367

Esim is what I was be referring to. Apologies if I wasn't clear on that. And no there is no sim card manager. The two IME numbers tell me it is capable of it at least. It's just not turned on

No 5G option EE UK

Hey everyone,
So I've got myself the S20 plus G9860 which I believe is the Hong Kong variant, 5G dual SIM etc.
I've noticed I don't have the option for 5G under connection settings.
I'm using EE and have a 5G plan in the UK
EE have dismissed me by saying it's the phone and it being a international model.
Any ideas?
I also don't have the option for e-sim which again is very weird!
Please help

Did you try to factory reset with the ee simcard in the phone? It will setup the phone on uk csc.
I'm not sure if 5g functionality is csc restricted or not.. But if it is this will do the trick.
Sent from my SM-G985F using Tapatalk

you need to be very careful - 5G spectrum is different for each variant based on the market is released - so phones that might have 5G in USA or ASIA will not work in 5G in Europe and viceversa as each country uses different spectrums, unlike 4g - and the phones only support the ones in the markets they are released!

I have SM-G986B/DS mine is dual sim both normal sims and laso has 5g on both sim slots

tim2london said:
you need to be very careful - 5G spectrum is different for each variant based on the market is released - so phones that might have 5G in USA or ASIA will not work in 5G in Europe and viceversa as each country uses different spectrums, unlike 4g - and the phones only support the ones in the markets they are released!
Click to expand...
Click to collapse
Tried a factory reset and still nothing, same options appear.
I checked the supported bands prior to buying this phone and it supports N78 for EE in the UK.
Is there a secret menu or something I can confirm it actually has 5G and its just disabled?

then maybe get in touch with EE maybe you need a new sim or your plan doesnt have 5g enabled on it

tim2london said:
then maybe get in touch with EE maybe you need a new sim or your plan doesnt have 5g enabled on it
Click to expand...
Click to collapse
As mentioned in my original post, I have a 5G plan and EE have dismissed me as soon as they heard it's a non UK model, stating it's the phone and not them!
Silly question but would I need to be in a 5G area for this option to show? Or is the 5G option always there regardless

5g is always an option I'm on 02 with a 5g sim however where I live isn't 5g but in connection settings it still shows 5g

da1e8 said:
5g is always an option I'm on 02 with a 5g sim however where I live isn't 5g but in connection settings it still shows 5g
Click to expand...
Click to collapse
Are you using the exynos variant or Snapdragon?

Try going to phone dialer app, enter the code *#2263# and tell us what is the options..
From here try selecting the one with 5G for the appropriate sim slot and see if it works..
Try to choose 5G with 4G since 5G coverage is not that good.
Mine is exynos s20+ 4G model so mine doesn't have 5G available. Yours may be different.
View attachment 4980399View attachment 4980401View attachment 4980403
Sent from my SM-G985F using Tapatalk

vash_h said:
Try going to phone dialer app, enter the code *#2263# and tell us what is the options..
From here try selecting the one with 5G for the appropriate sim slot and see if it works..
Try to choose 5G with 4G since 5G coverage is not that good.
Mine is exynos s20+ 4G model so mine doesn't have 5G available. Yours may be different.
View attachment 4980399View attachment 4980401View attachment 4980403
Sent from my SM-G985F using Tapatalk
Click to expand...
Click to collapse
I might be doing something wrong but that code *#2263# does nothing in the dialler for me, no service menu popup or anything

Ronny220 said:
I might be doing something wrong but that code *#2263# does nothing in the dialler for me, no service menu popup or anything
Click to expand...
Click to collapse
Can't seem to put video here..
Sent from my SM-G985F using Tapatalk

Ronny220 said:
Are you using the exynos variant or Snapdragon?
Click to expand...
Click to collapse
Exynos now. I had a snapdragon which also didn't work in the uk

Ronny220 said:
I might be doing something wrong but that code *#2263# does nothing in the dialler for me, no service menu popup or anything
Click to expand...
Click to collapse
Did you paste the code or type it? You'll need to type it.
Sent from my SM-G985F using Tapatalk

I found this thread by accident and I tried to enter *#2263# and I can confirm that it does nothing.
---------- Post added at 12:22 ---------- Previous post was at 12:17 ----------
Try *#0*# that gave me a service menu

Hi guys,
There was a new update today that enables 5G... See below. Can you check now?
View attachment 4982747
Sent from my SM-G9860 using Tapatalk

geovass said:
Hi guys,
There was a new update today that enables 5G... See below. Can you check now?
View attachment 4982747
Sent from my SM-G9860 using Tapatalk
Click to expand...
Click to collapse
What the... The 5G wasn't enabled or from the box and required firmware update to enable it?
Unbelievable. If it wasn't for the screen shot I would never have believed it.. Lololol
Sent from my SM-G985F using Tapatalk

geovass said:
Hi guys,
There was a new update today that enables 5G... See below. Can you check now?
View attachment 4982747
Sent from my SM-G9860 using Tapatalk
Click to expand...
Click to collapse
Yep can confirm all is working now and the option is there!
Now onto the next e-sim support ?

geovass said:
Hi guys,
There was a new update today that enables 5G... See below. Can you check now?
View attachment 4982747
Sent from my SM-G9860 using Tapatalk
Click to expand...
Click to collapse
I'm sure it'll come to USA phones too that are outside USA.

Is this a UK wide update not seen it for sky mobile or anyone else. There's a bug with rcs advanced chat services in Samsung messager. Can you co firm if advanced chat / rcs is activated?

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.

Network mode not showing 5G/LTE/3G/2G on my s20+ SM-G986U1

Hi all,
I just received my s20+ G986U1. On the network selection-network mode ... 5G/LTE/3G/2G option is not showing. I only have LTE/3G/2G option showing.
My friend who has gotten the G986U with the same carrier as me has the 5G/LTE/3G option available.
Any idea why is this happening and is it possible to fix this?
TIA

Controlled by your carrier/sim.

Thank you for the reply.
My friend and I are using the same carrier in our country. The only difference is the model of our s20+.
If its the SIM card issue, does replacing a new sim card fix this issue?
TIA

Bumps bumps

ltrinityl said:
Thank you for the reply.
My friend and I are using the same carrier in our country. The only difference is the model of our s20+.
If its the SIM card issue, does replacing a new sim card fix this issue?
TIA
Click to expand...
Click to collapse
No. It won't fix, because different model has different firmware, and possibly different csc. Those are the ones controlling what network, band, features you can use.

There are plenty of apps available at playstore for switching your band modes!
Gesendet von meinem SM-G988N mit Tapatalk