Galaxy S8 Mobile Data Won't Work! - Samsung Galaxy S8 Questions and Answers

Hello guys!
I received my s8 today and everything is great except from the fact that mobile data isn't working (or at least not the way it's supposed to)
I can start and receive calls and my signal bar is normal but I turn on my data and nothing happens. If I go to the settings and go to change network and choose my carrier the it will connect to 4g+. Once I turn off the data I can't turn them back on unless I do the same process.
Please help me! I have no idea what I should try in order to fix that.

Need a little more info, what model and or carrier is the phone? What service/sim are you trying to use it on?
Sent from my SM-G955W using XDA-Developers Legacy app

It's the G950F and it's factory unlocked. I am trying to use it in COSMOTE GR

optimuspraim09 said:
It's the G950F and it's factory unlocked. I am trying to use it in COSMOTE GR
Click to expand...
Click to collapse
Ok cool, are your APN settings set correctly?
Sent from my SM-G955W using XDA-Developers Legacy app

Quickvic30 said:
Ok cool, are your APN settings set correctly?
Sent from my SM-G955W using XDA-Developers Legacy app
Click to expand...
Click to collapse
I think so, I checked them and they seem correct. Something I just realised, is that when I started the phone.for the first time I did it without a sim and now when i turn on the phone I get a notification: "New sim detected, do a factory reset.." or something close to that.

Yeah I'd try a factory reset and if that doesn't work totally wipe the phone and use Odin to flash your carriers firmware.
Sent from my SM-G955W using XDA-Developers Legacy app

SIM cards can fail. I lost data one day very suddenly, turned out the card failed. Carrier gave me a replacement.
Sent from my SM-T820 using Tapatalk

Alright guys, thanks! I'll try cleaning the sim and if that doesn't work then I will do a factory reset.

It didn't work.. now I'm not getting the notification but it still won't connect to mobile data

Did you find a fix for that issue? I'm having the same problem

painapol said:
Did you find a fix for that issue? I'm having the same problem
Click to expand...
Click to collapse
I finally fixed it, I did factory reset because sim was asking me to do so(back up your data) and then I did recheck my APN settings.

It's probably because of this setting below (see pic). I had a software update and for some reason it set my phone on never use cellular network but it has to be set either on Wi-Fi preferred or cellular data preferred. No factory reset needed. To access the setting, go to settings, connections, more connection settings, Wi-Fi calling and then toggle one of the first top 2 options.
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Sent from my SM-G950U using Tapatalk

barondebxl said:
It's probably because of this setting below (see pic). I had a software update and for some reason it set my phone on never use cellular network but it has to be set either on Wi-Fi preferred or cellular data preferred. No factory reset needed. To access the setting, go to settings, connections, more connection settings, Wi-Fi calling and then toggle one of the first top 2 options.
Sent from my SM-G950U using Tapatalk
Click to expand...
Click to collapse
That might actually be correct, I've got mine to work by other ways but that definitely is worth checking! Thanks for sharing

optimuspraim09 said:
That might actually be correct, I've got mine to work by other ways but that definitely is worth checking! Thanks for sharing
Click to expand...
Click to collapse
You're welcome
Sent from my SM-G950U using Tapatalk

I have 955u1 model, but can't find this settings .. how to get mobile data working in Greece cosmote ?!

Related

New 407 ROM doesn't have wifi tethering? Please help. (screenshot attached)

The new 407 official ROM doesn't have wifi tethering???
Here's my screenshot:
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Settings > Wireless and networks > Tethering and portable hotspot ?
The settings for the WiFi hotspot should be there.
For me, under "Wireless and networks" there is no tethering option... wtf
Sent from my SGH-T989 using XDA App
People can call me crazy but there simply isn't that tethering option there. What's going on?
Sent from my SGH-T989 using XDA App
Tethering is there.
Strephon Alkhalikoi said:
Settings > Wireless and networks > Tethering and portable hotspot ?
The settings for the WiFi hotspot should be there.
Click to expand...
Click to collapse
You probably didn't flash correctly. I have tethering in mine.
I have it too
This is my screenshot. Someone help me please...
Try factory resetting and/or reinstalling the pkg, I know on At&t roms tethering is hidden by default and that it's potentially possible to hide it in any stock rom.
But 407 does not have it hidden by default, it might be a bad config file from a previous rom. Did you have tethering before upgrading to 407?
Unfortunately I cannot be of much assistance. Other than recommending a factory reset and flashing the ROM again, there's not much else I can tell you. I run a custom Gingerbread ROM so I haven't encountered this issue.
My best recommendation for you is to flash StreakMod recovery and then flash the DSC ROM. If after that you still don't have it then you must have a different type of Streak or something
Can you go to settings/about phone and provide a screen shot?
Sent from my Dell Streak using Tapatalk
slaydog said:
Can you go to settings/about phone and provide a screen shot?
Sent from my Dell Streak using Tapatalk
Click to expand...
Click to collapse
Here are screenshots of my WiFi tethering options:
PS... for any of the guys viewing this post, I'm curious to know why the pics from my Public Share folder on Google Docs would not load here to xda? I had to use my Dropbox account
Don't get offended, you mis-read my post
I was asking to see your settings/about phone (in portrait mode please) because I wanted to see all that you had installed on your phone, and you are clearly adept at taking screen shots, so you can avoid all the hassle of writing it down.
I can clearly see you do not have wifi tethering from the OP
Sent from my Dell Streak using Tapatalk
unlock it
I diden`t have it eather till i unlocked the phone your carrier can provide the unlock code for you or you can buy a code off ebay
sparky4017 said:
I diden`t have it eather till i unlocked the phone your carrier can provide the unlock code for you or you can buy a code off ebay
Click to expand...
Click to collapse
Same thing happened to me !
I have tethering in mine menu! But my Dell Streak was simfree, and unlocked when I purchased it.
BTW, there is a workaround to get the stock tethering functionality. Just get "Quick Settings" or "Quicker" from the Market and use their widget to switch it on and off and access the settings. As TheManii said, the setting is just hidden on some stock locked roms...
(Credit to "ffnbbs" here: forum.xda-developers.com/showthread.php?t=984557)
Sent from my Dell Streak using Tapatalk
Check if your APN settings are all correct and in place
I don't have the option either, but I can turn it on via elixir2 widgets.
so I don't care.
i dont have it either..
i had a stock dell streak 5 with the latest Canada rogers rom before i updated.
there was tethering before nothing now..
would be nice to fix but i dont use it..
doing to flash the Stock Deodexed 407 tomorrow see if thats any different.
everything else seems fine..
update
wifi tethering seems to be an issue of the sim card as with my bell card that has a working internet apn there is the wifi hotspot menu, but i started with a speakout sim (and no internet connectivity) and the hotspot menu was missing until i changed the simcard and set the apn to work with bell i surfed the net and rebooted and hotspot was there.. and its still there with the speakout sim in now
and after a few reboots wifi teathering is gone again with the speakout (no Internet with this sim card)
so i think it is definable as sim card/internet access related

Enable VOLTE on Verizon Nexus 6

These were a couple things I had to get Advanced Calling 1.0 (VOLTE) working on my device. This is for either Lollipop or Marshmallow
Step 1 - Make sure you the feature added to your plan.
You can call Verizon and have them add the feature or you can do it yourself from logging into your account and adding it as a feature
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Step 2 -
rajones19 said:
How to flip the VOLTE Provisioning Flag
From the Dialer, enter *#*#4636#*#*
From the resulting menu, choose Phone Information
Scroll down to TURN ON VOLTE PROVISIONING FLAG
Click to enable it, back out and you need to reboot.
Click to expand...
Click to collapse
I didn't need to enable the VOLTE provisioning flag. I didn't even need to reboot my phone, the toggle showed up in the menu shortly after I enabled the feature on my plan.
it was auto enabled on M
iissmart said:
I didn't need to enable the VOLTE provisioning flag. I didn't even need to reboot my phone, the toggle showed up in the menu shortly after I enabled the feature on my plan.
Click to expand...
Click to collapse
Can you screenshot it for me plz
Sent from my Nexus 6 using Tapatalk
iissmart said:
I didn't need to enable the VOLTE provisioning flag. I didn't even need to reboot my phone, the toggle showed up in the menu shortly after I enabled the feature on my plan.
Click to expand...
Click to collapse
sfld said:
it was auto enabled on M
Click to expand...
Click to collapse
Just because it worked for you guys already, doesn't mean it worked for me out of the box. I actually had to do this to get mine to actually provision
Three in the UK recently started rolling out VoLTE so I'm left wondering how the option can be enabled in the UK.
The VoLTE Provisioning Flag is already showing as off but I can't see the menu in Network Settings ?
Sent from my Nexus 6 using Tapatalk
Jygar said:
Three in the UK recently started rolling out VoLTE so I'm left wondering how the option can be enabled in the UK.
The VoLTE Provisioning Flag is already showing as off but I can't see the menu in Network Settings
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
You want the provisioning to be enabled, not off..... Also, you carrier has to have it enabled on your account and it working on their network
It's free for all customers as of the beginning of September.
From the screenshots I've seen everything looks okay, guess it's not enabled on international carriers in the rom.
Sent from my Nexus 6 using Tapatalk
Thanks. Always been meaning to look up what I need to do to turn it on.... But haven't really cared enough to do it

Wrong carrier name in Notification Bar

Hey,
I'm using OnePlus 2 with Oxygen OS 2.1.0 stock. I have a Vodafone SIM in slot 1 and an empty sim 2 slot.
I noticed the carrier name is wrongly displayed as Airtel instead of Vodafone IN.
Anybody else have this issue?
I had this issue with AT&T and T-Mobile. Both would say AT&T. That was when I had the T-Mobile in slot 1 and AT&T in slot 2. Switched the SIM cards and it displays properly now. Not sure why. Figured it was a software bug.
My phone does the same, instead of T-Mobile pl it shows polkom or something like that. And it's like that for every other carriers when I check in the settings. Factory resets didn't help so I just live with it. It's not a big deal.
Thanks Guys. Good to know I'm not the only person having this issue . Yes this looks like a bug. I thought yesterday update to Oxygenos 2.1.1 would fix it. But nevertheless hopefully somebody from oneplus is looking into this.
Also have France Telecom (F) instead of Proximus (B) :silly:
Do you guys, have a optable.db in /data/data/com.android.providers.telephony/ ? Looks like one of the file necessary to get carriers names, but I do not find it on my phone.
ChefChaudart said:
Also have France Telecom (F) instead of Proximus (B) :silly:
Do you guys, have a optable.db in /data/data/com.android.providers.telephony/ ? Looks like one of the file necessary to get carriers names, but I do not find it on my phone.
Click to expand...
Click to collapse
I do have it, yes. So we still dont know what the problem is. Unless its the files in this folder that are wrong
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1 thing I did noticed that, if I'm in different place (my workplace), it shows the correct carrier. Is this something to do with the Towers that are available in the area? If yes, then why it didn't become Roaming?
This appears to also happen if your phone switches to a band your mobile network uses a different provider for. I'm with 3UK and they use Orange's 2G network, so Orange appears if my phone drops to a 2G/GSM signal.
Sushant said:
1 thing I did noticed that, if I'm in different place (my workplace), it shows the correct carrier. Is this something to do with the Towers that are available in the area? If yes, then why it didn't become Roaming?
Click to expand...
Click to collapse
?????? what ?
ChefChaudart said:
?????? what ?
Click to expand...
Click to collapse
I said, when I am in my workplace, the carrier details is showing up correctly. Its just that I'm not able to figure out How..!
I'm getting this annoying problem since switching between EE and Virgin sim on Nexus 5x. Any ideas on a fix?
Sent from my Touchpad using XDA-Developers mobile app
Change your spn-conf.xml ( must be rooted ) in /system/etc/
Code:
<spnOverrides>
<spnOverride numeric="[COLOR="Red"]xxxxx[/COLOR]" spn="[COLOR="Red"]xxxxx[/COLOR]" />
</spnOverrides>
ChefChaudart said:
Change your spn-conf.xml ( must be rooted ) in /system/etc/
Code:
<spnOverrides>
<spnOverride numeric="[COLOR="Red"]xxxxx[/COLOR]" spn="[COLOR="Red"]xxxxx[/COLOR]" />
</spnOverrides>
Click to expand...
Click to collapse
...and if I'm not rooted, is a factory reset the only answer?
Sent from my Nexus 5X using XDA-Developers mobile app
Not rooted then just cry, sorry ...
I documented 6 months ago the bug to OnePlus, and either they don't care nor they are incompetent ....
( This bug is one of the 1st reason that made me installed a Custom ROM ... )
ChefChaudart said:
Not rooted then just cry, sorry ...
I documented 6 months ago the bug to OnePlus, and either they don't care nor they are incompetent ....
( This bug is one of the 1st reason that made me installed a Custom ROM ... )
Click to expand...
Click to collapse
A factory reset doesn't fix it. [emoji19] Looks like I'm rooting because it's going to annoy the heck out of me.
Sent from my Nexus 5X using XDA-Developers mobile app
...or I could get used to it. Rooting is not an option on my daily driver as it breaks my mobile banking and other vital apps.
Sent from my Nexus 5 using XDA-Developers mobile app
Everyone who has this issue on the n5x, please send feedback to google from About Phone.
Sent from my Nexus 5 using XDA-Developers mobile app

How to get smart call working on Note 7

This is a quick guide to show how to enable the smart call feature included in some versions of the Note 7, according to the website. Learn more about smart call feature here: http://www.samsung.com/global/galaxy/apps/smart-call/
First download quick shortcut maker from the Play Store.
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Second navigate to the third phone setting.
Third scroll all the way down to the circled setting. This sitting right here will get you where you need to be to enable Smart call feature.
Sent from my SM-N930P using Tapatalk
Nice trying it now....
Turned it on, I guess we'll see if it works. Now if we can get enhanced messaging back I would be set.
Sent from my SM-N930P using Tapatalk
Great! Thanks for this
Turned it on. Why is there no way to turn this on without downloading another app?
Sent from my SM-N930P using Tapatalk
Mine was on by default due to the 10 day trial and then it was switched to the off after a notification saying I could pay for the service, trial expired. I enabled it again with apex shortcut and it works great. We will see if I get charged premium charge.
Oh snap this is a paid feature...
Not sure where you found the trial. I searched and nothing came up on my phone
Sent from my SM-N930P using Tapatalk
The trial popped up when I activated the phone. I didn't accept the agreement, but it started anyways. After I reenabled it, I checked my account and I don't see any charges yet. It doesn't work for all numbers though (not the phones fault, number probably masking info)
I have it on and it seems like it doesn't work. I got a few bogus calls that it didn't filter.
This did not work for me. Then today I was poking around in the settings and got it to work. I went into Applications in settings and then in the top right enabled system apps. I scrolled down to smart caller ID and clicked it. I went to permissions and enabled contacts.
Anyway an hour later I got a call from a family member from their home phone. I do not have this persons name saved in my phone. It said their first, last, and middle initial right on the screen. I was like wow it's working. So naturally I went into package disable pro and turned it off LOL. I tested it again with the same caller and this time it didn't show their caller ID, only their phone number. I tried to re enable the feature and have not been able to get it back since. If someone can try these steps and see how it works, maybe we can figure it out.
Kept messing with settings and it started working again. Rebooted and it went away.
Yeah this is definitely not working. The option to identify unsaved number Era is on but when I get a call from a unsaved number it doesn't identify the number.
Not working for me either.
Sent from my SM-N930P using Tapatalk
Mine quit working with the update
I was able to turn on the feature. I'll watch to see if it works. This is after the update....
Mines turned on but not working...
Smart call on my wife's Sprint s7 edge has the shortcut in advanced features and works out of the box. It identified a spam call today
Sent from my SM-N930P using Tapatalk
It's not working because you also need to edit csc for it to work
SICKMADE said:
It's not working because you also need to edit csc for it to work
Click to expand...
Click to collapse
That's not an easy thing to do without root, but possible I guess. You think we should flash the csc from the international version? The only way I know how do it is with Odin.
SICKMADE said:
It's not working because you also need to edit csc for it to work
Click to expand...
Click to collapse
What do you edit in the csc?
Sent from my SM-N930P using XDA-Developers mobile app
I got it partially working on the T-Mobile variant. It works almost every time but reboot breaks it. I basically enabled all permissions for contacts and phone and then followed whats in the OP. Heres proof it works:
https://youtu.be/9AAqm2ac95Y

Please help to remove app icon

Hey guys. I have unlocked S8 which came with o2 sim card. While I was waiting for o2 to port my Vodafone number, I inserted my old Vodafone sim to use. Vodafone sim tool app appeared on menu which is normal when used with Vodafone sim. Today finally number ported and I started using o2 sim.
Now Vodafone app with android picture appeared in menu and can't remove it (see image).
I tried force stop, clear data, restart phone numerous time, nothing happens.
How can i delete it without reset?
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Sent from my SM-G950F using Tapatalk
Are you saying you long press on the icon and what? don't get the menu to uninstall? doesn't work? It may be because it is registered as system app. So if uninstall doesn't work, maybe disable will? If not you'll probably need root to get rid of it.
If I long press, I get following
1. Select multiple items
2. Add shortcut to home
3. Disable (blanked out)
4. App info
No uninstall option
Sent from my SM-G950F using Tapatalk
Is there an option to at least hide the app icon in the home screen settings?
DaHui623 said:
Is there an option to at least hide the app icon in the home screen settings?
Click to expand...
Click to collapse
No, but noticed there are two sim tool apps in Applications which I can't disable or remove
Sent from my SM-G950F using Tapatalk
Sorry, just checked in home screen settings and yes it can be hidden.
It's gone now but just as a hide. How can i permanently remove it?
Sent from my SM-G950F using Tapatalk
Try disabling Developer Options.
Factory reset the Phone with the new simcard in it...
Update home screen setting.
Just received the update.
Long press the empty space - go to home screen setting - about... then update it.
bakili said:
Hey guys. I have unlocked S8 which came with o2 sim card. While I was waiting for o2 to port my Vodafone number, I inserted my old Vodafone sim to use. Vodafone sim tool app appeared on menu which is normal when used with Vodafone sim. Today finally number ported and I started using o2 sim.
Now Vodafone app with android picture appeared in menu and can't remove it (see image).
I tried force stop, clear data, restart phone numerous time, nothing happens.
How can i delete it without reset?
Sent from my SM-G950F using Tapatalk
Click to expand...
Click to collapse
If you want to hide an app, try long press an empty spot on the home screen, then tap on "home screen settings", then go to hide apps. See if that will do it.

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