[Q] Can't switch network mode to 3G. - Galaxy S 4 Mini Q&A, Help & Troubleshooting

I've got this S4 mini here and I can't switch network mode to 3G. It fails when I try. I've tried different Sim cards so its not a network problem.
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goldfinv said:
I've got this S4 mini here and I can't switch network mode to 3G. It fails when I try. I've tried different Sim cards so its not a network problem.
Sent from my GT-I9300 using Tapatalk
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Maybe it doesn't work in your area?

Flatric said:
Maybe it doesn't work in your area?
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Funny. It used to work perfectly. Until recently
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Have you installed something?
Are you in custom or stock?
You need to provide more info.
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Its on stock ROM jelly bean 4.2.2. Nothing but normal social network apps installed
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Send it to service center
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Related

Help with T-Mobile and edge

So I have a hox on T-Mobile and every time I try to enter an apn it will not save as it says no sim . I get regular service but no apn means no mms or data. I read its a problem with tmobiles newer sim cards , and the only solution is to get an older one. They are extremely hard to find so I'm looking for some help here guys thanks!
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That's basically the only solution you have..
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joshnichols189 said:
That's basically the only solution you have..
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That sucks so hard :/
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Rom suggestions. APN settings? Metro pcs

Hello there.
I just unlocked and rooted my t999.
I will be using it with metro pcs, can anyone recommend any roms good to use with metro pcs? Or can I just stay stock? Is it safe to delete the t-mobile apps? What APN setting should use for data, mms, sms and voice to work properly?
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You can use any rom or stay stay stock, up to you, and yes you can delete the T-Mobile apps.. For the APN, the T-Mobile APN will work fine
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serio22 said:
You can use any rom or stay stay stock, up to you, and yes you can delete the T-Mobile apps.. For the APN, the T-Mobile APN will work fine
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I'm sorry I don't know why I keep saying metro pcs, most metro pcs retail stores in my city changed to AIO wireless, so I'm getting AIO not metro, they told me it's the same as at&t as they are working with the same towers, so you think I have to change the APN from tmobile's to at&t? Or AIO?
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You would have to change it, but I don't know if at&t APN would work. As far as ROMs you can also use at&t ones as well
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serio22 said:
You would have to change it, but I don't know if at&t APN would work. As far as ROMs you can also use at&t ones as well
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Ok I'll try different settings, you know I think the phone's esn is black listed with tmobile, do you know if it will still work?
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gibrannz said:
Ok I'll try different settings, you know I think the phone's esn is black listed with tmobile, do you know if it will still work?
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It may or may not
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If you call T-Mo, they can tell you if its blacklisted. If it is then it will not work.
It is blacklisted and it worked right when I inserted the AIO sim card, I just had to enter the APN for data to work.
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LTE only option on 4.4.2?

Hello all,
I was just wondering if anyone knows how to set LTE only for the network connection after the 4.4.2 update.
On preivious verisions I could just go to the service menu and set it but that does not seem to work anymore.
And under network selection it only gives me cdma and gsm.
Anyone know how I can lock it into LTE by chance after the update?
TheArtiszan said:
Hello all,
I was just wondering if anyone knows how to set LTE only for the network connection after the 4.4.2 update.
On preivious verisions I could just go to the service menu and set it but that does not seem to work anymore.
And under network selection it only gives me cdma and gsm.
Anyone know how I can lock it into LTE by chance after the update?
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Well first off your in the wrong forum section, Original Development is not for questions. Please move it
It works for me
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Sorry.
I could have sworn I started it I'm qa and not in original development.
serio22 how did you try it?
Are you on 4.4.2 nb4?
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I think I found a way.
Will try when I'm in an area with proper coverage to test and report back.
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TheArtiszan said:
Sorry.
I could have sworn I started it I'm qa and not in original development.
serio22 how did you try it?
Are you on 4.4.2 nb4?
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Through service menu.. Same way its always worked
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How did you get to it?
The code wasn't working for me.
I got advanced signal status and can use that for device info to change it and it does work for me that way though.
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*#2263# which will bring up the service menu, select LTE band preference, and then select option 3 for band 4
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Can't get LTE

Does anyone know why my S4 is not connecting to LTE even though I'm in the area I only get 4G. My friend xperia z1 gets LTE and he is on T-Mobile too. I have a 5-6 years old sim card trimmed to micro sim can that be the problem?
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supersilko said:
Does anyone know why my S4 is not connecting to LTE even though I'm in the area I only get 4G. My friend xperia z1 gets LTE and he is on T-Mobile too. I have a 5-6 years old sim card trimmed to micro sim can that be the problem?
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Click to expand...
Click to collapse
Try to force it.
Dial *#2263#
Select LTE/WCDMA
Haters Make Me Famous
Deviant Development Team Member
What Rom, what mods.? You may have a conflict with your buildprop that may be causing it.
Pp
Pp.
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I tried forcing it, official stock 4.4.2, wicked v10, cm 10, cm 11 still nothing. My s4 used to be m919n flash to m919 nb4.
Got a updated sim card problem solved
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supersilko said:
Does anyone know why my S4 is not connecting to LTE even though I'm in the area I only get 4G. My friend xperia z1 gets LTE and he is on T-Mobile too. I have a 5-6 years old sim card trimmed to micro sim can that be the problem?
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Have you checked your VPN settings?
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Pablo_24 said:
Have you checked your VPN settings?
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I think you mean APN
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Pablo_24 said:
Have you checked your VPN settings?
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Fixed it by getting a new version of sin card
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supersilko said:
Fixed it by getting a new version of sin card
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Sin card, sounds nasty.
Try Sim card. :thumbup:
Pp.
Sent from my Touchwiz device that never forgets apps.

Hey new here

Is there a new Android update I'm on att note 4 but T-Mobile network sorry been on a iPhone 6plus for a while can anyone help or at least send me to the right place?
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heya welcome. ok so you're att phone but t-mobile network so you'll probably find yourself bouncing between here and t-mobile section.
the issue with being an att phone on t-mobile is att will push out their updates through their mobile network, and since you're not on that mobile network you won't see them.
soooo if you want to get the latest update I would download Kies. that's Samsung official software to update your phone, and do other things with it via USB connection to your computer.
http://www.samsung.com/us/kies
that's where you can download it. install it, connect your phone to your PC, and Kies will walk you through the rest. gl reply back if you have any trouble.
Cool and thanks I'll do that now and see what happens.
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Kies say my phone is up to date lol lies ill keep trying tho.
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Update to AT&T Note 4 will only happen if there's an AT&T Sim card in the phone. Borrow someone's and it will work.
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Wow that suck what if I get a dead sim card from att that still connects just doesn't have service will that work?
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So I wouldn't be able to use odin either?
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Doubt a dead Sim would work, as it won't connect. But yes, there are some threads here where you can find the update to install using Odin.
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Alright cool thanks
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If I update using odin will it Tigger anything?
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amazin1988 said:
Is there a new Android update I'm on att note 4 but T-Mobile network sorry been on a iPhone 6plus for a while can anyone help or at least send me to the right place?
I had same prorblem (On Cricket using an ATT Note 4). I took the phone to Best Buy when to in store Samsung kiosk and they updated it in about 4 min and where happy to help.
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amazin1988 said:
If I update using odin will it Tigger anything?
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No, not from flashing AT&T stock firmware.
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