Database Users

[Q] 3G data issue on Samsung Focus + Samsung Focus S, anyone have this problem?

Hey, I'm experiencing 3G data issues. I have an unlocked Samsung Focus (Rogers) and recently bought a Samsung Focus S (AT&T) hoping it would be a better experience. Both my phone shows it has full bars and 3G or 4G availability but I find 60% of the time my phone has little to no data going to my phone, so none of my apps or news feeds get updated or they get updated slowly. When I'm on wifi the phone works flawlessly. I'm currently on a Fido network and none of my iPhone and Android unlocked phones had this problem.
I read this article,
http://pocketnow.com/windows-phone/h...g-wp7-handsets
One of the odder quirks of Windows Phone 7 to appear since the platform's launch has been the absence of Automatic Data Configuration for users who swap SIM chips and network-hop with their unlocked handsets.
ADC should let the phone communicate with the network it's connected to in order to retrieve all the settings it needs in order to use the network's services. Samsung defended disabling ADC by saying that its phones are intended to only be used with a specific carrier
Now I know this is talking about MMS, but does anyone think it's related to 3G connectivity from a different service provider?

bho15 said:
Hey, I'm experiencing 3G data issues. I have an unlocked Samsung Focus (Rogers) and recently bought a Samsung Focus S (AT&T) hoping it would be a better experience. Both my phone shows it has full bars and 3G or 4G availability but I find 60% of the time my phone has little to no data going to my phone, so none of my apps or news feeds get updated or they get updated slowly. When I'm on wifi the phone works flawlessly. I'm currently on a Fido network and none of my iPhone and Android unlocked phones had this problem.
I read this article,
http://pocketnow.com/windows-phone/h...g-wp7-handsets
One of the odder quirks of Windows Phone 7 to appear since the platform's launch has been the absence of Automatic Data Configuration for users who swap SIM chips and network-hop with their unlocked handsets.
ADC should let the phone communicate with the network it's connected to in order to retrieve all the settings it needs in order to use the network's services. Samsung defended disabling ADC by saying that its phones are intended to only be used with a specific carrier
Now I know this is talking about MMS, but does anyone think it's related to 3G connectivity from a different service provider?
Click to expand...
Click to collapse
I'm not very familiar with the ADC stuff, but can't you install Samsung Tools and check "Set 'Run ADC' Flag" to run ADC on next boot? Any time I loose my connection after flashing or modifying, I use that, and I get my 3G back. Maybe it will help your situation?

I read over your problem and think enabling the auto sim setting through your diagnostics menu might help you out. It did help me. here is the link
http://forum.xda-developers.com/showthread.php?t=1241721

kinda the same problem
i have an att focus v.1.3 on 7.8 via general cab files unlcoked and using tmo usa. my story... i just moved from Louisiana (where i happily used only edge knowing that was all that was possible with my setup) to Wisconsin. well on the car ride to the airport i looked down at my phone around the houston area and to my surprise, it had a big fat 4g on there, which is shocking for 2 reasons, i didnt know the focus even supported 4g, and a tmo sim in an att phone getting something that wasnt edge, so i played for a bit and it worked flawlessly. (fastforward through the planes making me turn on airplane mode etc etc) now im in my new home, where the same phone almost always has 3g.... the problem being, data doesnt work at all when its on 3g, only edge or 4g. i dont understand why or how different data signals are working, but i need to fix this. the focus doesnt have a 3g toggle, just general data which kills everything, and ive tried who knows how many things ive tried to make the 3g work(when its showing i have it.). i tried whats posted in this thread, i factory reset, plugged into zune, i have both network profile and my normal data (in settings) set to auto(ive tried every combination). and even a few things via diagnostics. any help would be greatly appreciated!

ctra35 said:
i have an att focus v.1.3 on 7.8 via general cab files unlcoked and using tmo usa. my story... i just moved from Louisiana (where i happily used only edge knowing that was all that was possible with my setup) to Wisconsin. well on the car ride to the airport i looked down at my phone around the houston area and to my surprise, it had a big fat 4g on there, which is shocking for 2 reasons, i didnt know the focus even supported 4g, and a tmo sim in an att phone getting something that wasnt edge, so i played for a bit and it worked flawlessly. (fastforward through the planes making me turn on airplane mode etc etc) now im in my new home, where the same phone almost always has 3g.... the problem being, data doesnt work at all when its on 3g, only edge or 4g. i dont understand why or how different data signals are working, but i need to fix this. the focus doesnt have a 3g toggle, just general data which kills everything, and ive tried who knows how many things ive tried to make the 3g work(when its showing i have it.). i tried whats posted in this thread, i factory reset, plugged into zune, i have both network profile and my normal data (in settings) set to auto(ive tried every combination). and even a few things via diagnostics. any help would be greatly appreciated!
Click to expand...
Click to collapse
well mine 3g working fine

imrananis said:
well mine 3g working fine
Click to expand...
Click to collapse
thank you very much for your input, it was very helpful -_-

Hello guys
I recently installed Windows Phone 7.8 Custom ROM. Experiencing frequent disconnection of the 3G data connection. I am sure that the problem is not from the network side as my friend using the same network on a iPhone has no issues.
Any suggestions?

adi535 said:
Hello guys
I recently installed Windows Phone 7.8 Custom ROM. Experiencing frequent disconnection of the 3G data connection. I am sure that the problem is not from the network side as my friend using the same network on a iPhone has no issues.
Any suggestions?
Click to expand...
Click to collapse
Same issue here. Phone was fine on stock rom. Just put dynamic on my focus 1.3 and now 3g seems to show as connected but no data can be used. fine on Wifi...

No data after having WiFi enabled for a while

Hello,
I've had this issue across more than 1 device and more than 1 carrier.
Here's what happens:
I enable WiFi, and for a while everything works as expected. I can send and receive MMS messages. I can disable WiFi and go back to my 4G connection.
The problem is, after an unknown amount of time, the phone drops the 4G connection in the background. I only know when I can't receive/send MMS messages anymore. At that point, if I disable WiFI there's no 4G data connection, and I have to turn Airplane mode off and turn it back on.
This is really annoying. It happened to me using Sprint and a Galaxy S4 (both stock and custom ROMs) and it's happening to me with a Galaxy S5 from MetroPCS. (I've used the stock Metro ROMs, Stock T-mobile ROMs, and Custom T-mobile ROMs).
Right now I'm using a Stock T-mobile ROM with the latest firmware, carrier is MetroPCS.
What can I do so this doesn't happen? It's really frustrating.
Thank you for your time.

Disabled "Smart Network Switch" in WiFi Settings?

*Detection* said:
Disabled "Smart Network Switch" in WiFi Settings?
Click to expand...
Click to collapse
Hello.
That's already disabled.
Should I enable it?

I tried with "smart network switch" enabled and disabled and problem still happened.

My S5 G900F Android 5.00 (Smart Network Switch disabled, Power Save disabled) on EE UK has had this problem for 9 months after phone upgraded itself to Lollipop (EE win the accolade to being the SLOWEST ON THE PLANET to provide Android updates.....). Since Jan 3, my wife's G901, a couple of weeks after it upgraded from 5.0 to 5.02, has developed the same problem. Neither phone has ever been rooted or other.
I have fruitlessly searched everywhere for a solution without success. EE Customer Services Tier 2 & Samsung's own service centre have failed to fix it. EE & Samsung blame each other for 5.1 or 5.1.1 not being available for download. Neither is prepared to resolve the issue despite hours on the phone. Have tried Safe Mode, Factory Reset, clearing everything, reloading APNs & Samsung even reloaded Android. All a waste of time: Many many days of it!
After approx half an hour connected to Wi-Fi, only way to get the mobile data to connect, is either reboot, enter & exit Air-plane mode or flip the 4G > 3G > 4G connection under More Networks. Have tested the fault in different cell areas countries and continents; fault is same everywhere.
It seems there are quite a few sufferers of this problem.

Samsung S5 keeps losing data connection
I have the same problem. My new Samsung phone loses the data connection (even though data is turned on) and I can only re-connect by restarting the phone. The first EE shop I took it to couldn't help at all. The second gave me a new SIM - that didn't work. Then I tried online support and after 3.5 hours of my life, in which I was passed on from one person to another, they completed a factory re-set - which didn't work (and additionally lost all the personalisation of my screen and some of my contacts). So I now have a not-very-smart phone which I have to re-start every time I want to use data. This is a business contract and the phone is less than two months old, but I'm not getting any effective support from EE. Android version is 5.0.2

me too, since last update. and app 'phono' shows "mobile data off" not got a time on it, but when i leave wifi coverage, it wont reconnect to cell data 2g/3g/4g. flightmode toggle to restore.

Abandon hope if you have this intermittent mobile data problem!
...at least until there is a software update, though I have no idea if that will help.
I have now tried a new sim card, a factory reset, and a replacement phone - which was provided only because I'm a business customer and I found a sympathetic member of staff. *By the way, I was told that if you are personal customer they won't consider replacing your phone if it is more than a month old - even if you started complaining about the phone as soon as you got it, the chances are a month will have elapsed by the time they put you through the hoops of a new sim, reset etc - and then it is too late to insist on a replacement phone.
In any case the replacement phone didn't resolve the issue so I have reached* a dead end. My phone fails to connect to data after having been connected to wifi - you have to do it manually each time you move away from a wifi connnection. At first I was doing it by restarting the phone, but am now following the advice of someone else who has the same problem and am going into flight mode and out again. *
This is not satisfactory, and it seems from reading forums that EE are to blame for the problem rather than Samsung, but I'm not 100% sure about that.*

Possible solution that works, for me, at the moment!
Having suffered this issue of my S5 (SM-G901F) not connecting to mobile data after being on Wi-Fi for a while unless switching airplane mode on/off for a few weeks; although it has probably been happening since the update I received late December; I have tried all of the turn this switch off, factory resets (x2), etc, etc, etc. and Googled the issue without success.
I have found this thread interesting, and I even tried calling EE support only to be told "you have tried everything that we would tell you to do" and "it wouldn't be a sim card, or handset issue, sounds like software". The reply was basically that like-it or lump it until the 5.1 update is released "by Samsung not EE because EE do not release Android updates". [Perhaps EE don't release the updates, but the stock rom is tested by them and their bloatware added before they eventually release it!!!]
Following my last reset I tried selectively re-installing the apps I used incase that was causing the issue. No Luck!
One last thing I tried was to look at every system 'thing' that I could find which used/switched any part of the mobile/mobile data/wifi - in addition to the settings I had already tried (all of which were mentioned in this thread previously). One thing I could not find not mentioned here, or anywhere, was the VoWi-Fi call on/off which I had always set to on as I do not live in a great reception area. Calling over Wi-Fi is great when you don't have a strong mobile signal.
Having 'played' with this setting for the last 24 hours I have found that the VoWi-Fi on/off appears to be a possible cure - for me anyway.:fingers-crossed:
When VoWi-Fi was set to off and leaving the phone connected to Wi-Fi overnight, the S5 immediately switched to mobile data this morning when I turned the Wi-Fi off . It continued to switch between Wi-Fi and mobile data all morning whilst out and about in and out of Wi-Fi connections - Woop Woop!!!
I then tried switching VoWi-Fi on (with Wi-Fi on and at home), leaving the phone for a number of hours, only to find that when I turned Wi-Fi off the phone refused to connect to mobile data even with a 'decent' mobile signal. The only way to get it to connect was to go back to switching Airplane mode on/off.
Switched VoWi-Fi off again, left Wi-Fi connected, left the phone for a couple of hours, etc. and hey-presto immediately switched to mobile data when I turned the Wi-Fi off. [Dances around the room because he's got the S5 automatically switching to mobile data again. Even though I'm at home with a great fibre internet and strong Wi-Fi connection!!!]
I do not know if this could be a solution for the others who are suffering from this issue, but it appears to be a solution for me at the moment. I thought I would share as your previous posts have helped me and you all seem to be pulling your hair out; like I have been; trying to find a solution.
Try it, it may work, but don't shoot me if it doesn't!

It's encouraging to know that I'm not crazy. I've had this issue across two devices and carries.
John,
Thank for your suggestion about WiFi calling. Unfortunately, I always have it off! I never used it, so maybe I should try turning it on? We'll see lol.
At this point, I think this is going to be my last Galaxy line phone.

Is it wi-fi calling that's causing the problem?
I have wondered if there is a link with wi-fi calling, but haven't tested it properly. I signed up with ee and bought the Galaxy phone specifically so that I could use wifi calling, as the town where I live (in the Scottish Borders) doesn't get a mobile signal strong to work reliably indoors from any of the networks. I'll try turning off wi-fi calling to see if that sorts the data thing (though I see that for one person above it did not). That would mean I wouldn't get calls or texts when I'm at home so it would not be a permanent solution for me. But in fact the wi-fi calling is not reliable anyway....

Brian_svc said:
It's encouraging to know that I'm not crazy. I've had this issue across two devices and carries.
John,
Thank for your suggestion about WiFi calling. Unfortunately, I always have it off! I never used it, so maybe I should try turning it on? We'll see lol.
At this point, I think this is going to be my last Galaxy line phone.
Click to expand...
Click to collapse
Brian,
You never know the way things are going with this issue; given that nobody seems to be able to pinpoint the fault; turning it on may just sort it!!!

still no change and its a pita.....

[Moto G4 with Amazon ads] Always losses carrier network after 24 hours

Hello everyone,
I just bought a Moto G4 16 GB with Amazon Ads for my wife, but we are facing a very annoying problem: the carrier signal always dies after 24 hours give or take. We tested with a different SIM card and the same thing happened. When this happens the device only shows "Emergency Calls Only" and we have to reboot the phone in order to get the signal back.
So, is anyone else facing this problem? Is this really a problem with this phone in particular or every moto g4 has this problem? Should I return the device to amazon?
Thank you very much for any information you can give me!

Zadornov said:
Hello everyone,
I just bought a Moto G4 16 GB with Amazon Ads for my wife, but we are facing a very annoying problem: the carrier signal always dies after 24 hours give or take. We tested with a different SIM card and the same thing happened. When this happens the device only shows "Emergency Calls Only" and we have to reboot the phone in order to get the signal back.
So, is anyone else facing this problem? Is this really a problem with this phone in particular or every moto g4 has this problem? Should I return the device to amazon?
Thank you very much for any information you can give me!
Click to expand...
Click to collapse
No problems here since I got my phone last week and I have T-Mobile. You might have to check your apn settings with your carrier.

Caltinpla said:
No problems here since I got my phone last week and I have T-Mobile. You might have to check your apn settings with your carrier.
Click to expand...
Click to collapse
I tested the SIM card in a different phone and it worked flawlessly (I also use T-Mobile). The strange thing is that the phone gets the signal very well during more or less one day, after that I have to reboot to get signal again.
Well, this is probably a problem in the device. I already asked Amazon to send a replacement.

Zadornov said:
I tested the SIM card in a different phone and it worked flawlessly (I also use T-Mobile). The strange thing is that the phone gets the signal very well during more or less one day, after that I have to reboot to get signal again.
Well, this is probably a problem in the device. I already asked Amazon to send a replacement.
Click to expand...
Click to collapse
Try my APN settings to see if it helps, but locations very important

Zadornov said:
I tested the SIM card in a different phone and it worked flawlessly (I also use T-Mobile). The strange thing is that the phone gets the signal very well during more or less one day, after that I have to reboot to get signal again.
Well, this is probably a problem in the device. I already asked Amazon to send a replacement.
Click to expand...
Click to collapse
I also have the cellular data always active checked off

Caltinpla said:
Try my APN settings to see if it helps, but locations very important
Click to expand...
Click to collapse
Thank you, but I just use the t-mobile network. In fact, my carrier is called campusSIMs and it is a MVNO that uses t-mobile network. So, my APN configs are a bit different from yours.
However, I didn't know about this mobile data thing. I didn't touch the developer options. Maybe, it can be a good idea.
Thank you!

It won't be your APN settings since that controls your data settings. If the sim is ok then it could be your phone.
Sent from my SM-T530NU using XDA-Developers mobile app

I'm seeing a similar problem with the data portion of the network (also on T-Mobile). While I'm able to send and receive calls and texts, data doesn't work. There's no indication that it's attached to LTE or even 3G (just a standard signal bar with no other information). I moved the SIM card back to the old phone it was in and it works fine.
Things actually worked yesterday, so something happened overnight to break it.

Damaniel said:
I'm seeing a similar problem with the data portion of the network (also on T-Mobile). While I'm able to send and receive calls and texts, data doesn't work. There's no indication that it's attached to LTE or even 3G (just a standard signal bar with no other information). I moved the SIM card back to the old phone it was in and it works fine.
Things actually worked yesterday, so something happened overnight to break it.
Click to expand...
Click to collapse
That could possible be the APN settings. Although usually it's the opposite, they don't work at first then they update from the network later on. Most times the APN settings will set themselves but on the odd occasion they need to manually edited. I don't use T-Mobile but the APN settings are easy enough to find.

Damaniel said:
I'm seeing a similar problem with the data portion of the network (also on T-Mobile). While I'm able to send and receive calls and texts, data doesn't work. There's no indication that it's attached to LTE or even 3G (just a standard signal bar with no other information). I moved the SIM card back to the old phone it was in and it works fine.
Things actually worked yesterday, so something happened overnight to break it.
Click to expand...
Click to collapse
Sounds like you need to manually enter the APN settings. What you describe is exactly what happens when it hasn't loaded an APN.

I'm "kinda" having an issue here. It's a little different though; the phone works ok for a while (for me about 3 hours, usually), and then I still get an LTE indicator, but have no network connection (get errors in apps/"No internet" page in chrome).
Other times, I lose LTE and get locked in 3g (H indicator), and can only get LTE back by going to Settings/More/Cellular Networks/ and toggle preferred network mode to 2g or 3g, let it connect (H or E), then toggle back to LTE.
Motorola responded to a bad Amazon review requesting I post asking for help on their forums.
Relevant link:
https://forums.lenovo.com/t5/Moto-G...ction-with-LTE-and-strong-signal/td-p/3377242

I'm active over on their forums also and it's good to post over there in case you ever want to do a soak test. They look at your posts there when they ask for soak testers. As for your problem, I've seen it shift back and forth if you are in an area between towers and one isn't sending out LTE. If it were that I wouldn't think you'd get it back so easily. There's an app, don't remember the name, that will show the towers and signal relative to your location, If might be interesting to look at that.

Having the same issue with radio. Just replied to your post, Kalash.

Ok, we got a new phone from Amazon and it has the same problem. So, I believe this phone does not work very well with MVNOs.
I notice that the problem is that the phone cannot reconnect to the network after losing the signal. For example, if you go to an area with bad signal and, eventually the signal vanishes, the phone will not be able to reconnect to the carrier network. The phone only reconnects after reboot. Airplane mode does not solve the problem.
This does not happen with my Blu Life One X. So, I think it is a software problem.

Zadornov said:
Ok, we got a new phone from Amazon and it has the same problem. So, I believe this phone does not work very well with MVNOs.
I notice that the problem is that the phone cannot reconnect to the network after losing the signal. For example, if you go to an area with bad signal and, eventually the signal vanishes, the phone will not be able to reconnect to the carrier network. The phone only reconnects after reboot. Airplane mode does not solve the problem.
This does not happen with my Blu Life One X. So, I think it is a software problem.
Click to expand...
Click to collapse
That's not true on all mvnos' apparently. My wife's phone is on Consumer Cellular, an AT&T mvno and it's never done that. We've been in a no service area several times and it's always connected immediately when getting service back.

I337 Unlocked was getting 4G Data with no issues, Now I only get 2G/EDGE?

Hi every one,
As the title says I've been using an Unlocked i337 with Simple Mobile carrier for the better part of a year now with zero issues, and happy with my 4G data working fine for a very long time until today when I seen my phone was only showing Edge data with the "E" indicator. I have tried searching and troubleshooting it, and nothing comes up. I recently rooted but 4G data was working just fine even after root. I have checked APN settings and toggled off and on. I went into the test menu and GSM/LTE is selected. I don't have any option in the settings menu to turn 4G off or on. What seems to be the problem?
Also for the record I have called Simple Mobile customer service for help but they can barely understand me let alone help me but they did check my account to see if any thing got adjusted and they resent OTA signal to my phone and every thing checked out fine. They just kept telling me restart my phone about 10 times.
Model: i337
Android Version: 4.2.2
If I haven't included any other crucial details let me know. Thanks

Moto G7 Has No Signal Before And After Fastboot

Hi all,
Greetings I'm new here. Just found this XDA forum last night. What happened was:
a. I have a G7 XT1955-4 and it suddenly has no signal. The sim can be detected, though. It's showing StarHub (I'm in Singapore) and my number.
b. IMEI looks fine, too, but noticed that it's showing Radio Off. Can't be turned on even though using *#*#426#*#*.
c. I read this forum and after many tries, I managed to fastboot using https://mirrors.lolinet.com/firmware/moto/ocean/official/RETAPAC/ (I chose XT1955-4_OCEAN_RETAPAC_10_QPOS30).
d. Other version such RETAPAC 9 or RETAIL 9 and 10 didn't work.
e. However, after fastbooting using the version on point #c (it can load and I configured it just like a first time setup after factory reset), the problem persists. Still no signal and showing Radio Off. What can be done here?
Note:
I'm no programmer and I just managed to get it work by trial and error.

Is Ocean same as River? Either way there is also a setting unset settings, network @ internet, mobile network, preferred network type, make sure that's right, sometimes rocking the settings will fix it. Except your is showing radio off , is a g7 retail ocean? I have not reinstalled stock in years, so I can't remember, but you know a g7 is "river" though, right?

Droid4200 said:
Is Ocean same as River? Either way there is also a setting unset settings, network @ internet, mobile network, preferred network type, make sure that's right, sometimes rocking the settings will fix it. Except your is showing radio off , is a g7 retail ocean? I have not reinstalled stock in years, so I can't remember, but you know a g7 is "river" though, right?
Click to expand...
Click to collapse
Sorry, I'm not sure if I understand the question, but I seem to see it somewhere on the phone that it's Retail Ocean. Upon further investigation, I start wondering if it's actually a hardware problem...

Sorry was too early and messed up with auto correct, something I found that helps is, playing with settings, found in, settings, network & internet, mobile network, preferred network type(LTE CDMA and so on), make sure that's right, sometimes rocking the settings will fix it. Also there is an APN setting, make sure your carrier is right. Also there is airplane mode and data mode, make sure airplane mode is off, make sure data is on. On custom Rom the worst case Is like getting g3 instead of 4g or 4g instead of volte, a setting I have seen that will keep a phone from connection properly is APN, make sure. If its not one of the above I have never seen it. Have you tried installing a custom ROM with success? Also Motorola now has program, forgot what its called, it'll reflash a stock phone, haven't used it in a while but it'll probably automatically download the correct firmware, maybe it is called moto helper?, also Sim cards can go bad, my g7 has been threw 2-3 already.