Database Users

[Q] Data connection problem .

I have bought my Lg G2 last saturday. I'm still researching the phone and so far it's great except one thing. Problem is when the phone is removed from charging it refuses to establish a data connection. This happened to me twice and every time in the morning after the charging.
Solution is restarting the phone. If not, it just won't connect . When i go to the settings it is turn on, but there are no arrows at the top of the screen and it doesn't work. Otherwise , after the restart it works normally all day. I keep turning it on and of and it works fine.
I think it is a software problem, since I have a network signal, but I'm not sure.
Is anyone having a similar problem?
Thanks

Coxander said:
I have bought my Lg G2 last saturday. I'm still researching the phone and so far it's great except one thing. Problem is when the phone is removed from charging it refuses to establish a data connection. This happened to me twice and every time in the morning after the charging.
Solution is restarting the phone. If not, it just won't connect . When i go to the settings it is turn on, but there are no arrows at the top of the screen and it doesn't work. Otherwise , after the restart it works normally all day. I keep turning it on and of and it works fine.
I think it is a software problem, since I have a network signal, but I'm not sure.
Is anyone having a similar problem?
Thanks
Click to expand...
Click to collapse
Have you tried to Toggle Airplane Mode??

hd-renegade said:
Have you tried to Toggle Airplane Mode??
Click to expand...
Click to collapse
No, I have read about that today , but as a solution for a samsung g3 . I will try in the morning, because after the restart it works perfectly all day . Do you think it is a software problem?

Are you using different charger and cable or the originals that came with the phone?
Sent from my LG-D802 using xda premium

Same here. Toggle don't work but restart works OK.
-LG G2

gm007 said:
Are you using different charger and cable or the originals that came with the phone?
Sent from my LG-D802 using xda premium
Click to expand...
Click to collapse
I'm using original usb cable and charger, but with extender , because of the electricity. Phone is from England, and I'm from Serbia .

After the last night charging I had the same problem, but this time I used toggle between Airplane and Data . After that everything worked fine.

Coxander said:
I have bought my Lg G2 last saturday. I'm still researching the phone and so far it's great except one thing. Problem is when the phone is removed from charging it refuses to establish a data connection. This happened to me twice and every time in the morning after the charging.
Solution is restarting the phone. If not, it just won't connect . When i go to the settings it is turn on, but there are no arrows at the top of the screen and it doesn't work. Otherwise , after the restart it works normally all day. I keep turning it on and of and it works fine.
I think it is a software problem, since I have a network signal, but I'm not sure.
Is anyone having a similar problem?
Thanks
Click to expand...
Click to collapse
Hi, i noticed this too since a couple of days... Trying To figure out what the issue is ( in possession for 2 Weeks)
I can re-establish data connection without reboot by clicking in select automatically in network operators in data /mobile networks settings. So it will reregister on the network.
Guess we need to notify lg about this issue/bug for a fix.

my sprint g2, will drop data connection occasionally when switching from wifi to 3g or from lte to 3g. so i would say there is some kind of real issue here

Same problem after rooting
I'm having the same issue, the data connection drops, mostly after going into stand-by. The problem started to occur a few days later after rooting the LG G2. I have tried the temporary solutions above with succes, but there is no final solution to it. I wonder if the device intentionally starts to brick itself after rooting, I heard the LG G2 has a lot of root checkers (says the noob).
Anyone contacted LG yet? Or tried flashing their device?

I'm having a similar issue with my G2.
After switching off wifi, data won't start.
I have to click search network then it would go on.
Would it be something to do with the modem?
When i had my Samsung gs2, I had problems with random dropouts, then I found a way to flash new modem software and all worked fine with better reception and no dropouts.

I sometimes loose network connection completely (no service) when switching from 3g to 2g or vice versa, no issue with 4g what I've seen.
Though I have this BBS, looks very alarming I must say, does anyone have similar to this:https://db.tt/aKsiw0Xe
https://db.tt/9iMHIZvm

issue fixed
hi after a recent software update (mine was D80210c-HKG-XX, build number JDQ39B,...) the data connection issue is solved for me (also made a LG support case).
But my NFC funtcion stopped working now...

Same here. Ive got this issue after rooting the G2. It cannot connect to mobile data after Im away from wifi connection. Switch airplain mode on and off helps but its annoying even if u have more email account. Another problem after rooting was freezing and restarting phone after mouse connection. But next day was everything fine and its untill today. Have anyone similar issues with custom roms?

bercyy said:
Same here. Ive got this issue after rooting the G2. It cannot connect to mobile data after Im away from wifi connection. Switch airplain mode on and off helps but its annoying even if u have more email account. Another problem after rooting was freezing and restarting phone after mouse connection. But next day was everything fine and its untill today. Have anyone similar issues with custom roms?
Click to expand...
Click to collapse
I am rooted running Digital Dream on a Verizon VS980 with 12B radio installed. I loose data or go down to 1x all the time. I have to toggle airplane mode or reboot to re-establish 4G connection. Is there something else I can do. I love the phone but the data thing is annoying. Is the antenna really that bad in these phones?

kaluna00 said:
I am rooted running Digital Dream on a Verizon VS980 with 12B radio installed. I loose data or go down to 1x all the time. I have to toggle airplane mode or reboot to re-establish 4G connection. Is there something else I can do. I love the phone but the data thing is annoying. Is the antenna really that bad in these phones?
Click to expand...
Click to collapse
I think and Im almost 100% sure that this must be only software problem, because when the data is runnig, it runs fast and stable. No additional inconvenience.I hope next upgrade (update) will fixt it. However Im really surprising that u have same problem on custom ROM. Im using only airplain mode to switch the data on. I needent to restart device, but it is really really annoying.

Hi everyone, as I wrote before got data connection issue while getting away from wifi. The data cannot start automatic. I found out that it happens only if GSM/ WCDMA /LTE automatic connection is selected in the settings. When I adjust GSM/ WCDMA automatic connection - everything is ok. I was trying automatic switching and runs perfect. So if u dont use LTE, better say if the WCMDA is enought for u, it can be less annoying solution as manualy turn on/ off airplain mode. I hope next update fix this issue at all. Have nice day.
semalt

bercyy said:
I think and Im almost 100% sure that this must be only software problem, because when the data is runnig, it runs fast and stable. No additional inconvenience.I hope next upgrade (update) will fixt it. However Im really surprising that u have same problem on custom ROM. Im using only airplain mode to switch the data on. I needent to restart device, but it is really really annoying.
Click to expand...
Click to collapse
It seems better (still not perfect) I wiped everything including formatting the system partition and re-installed... But thanks for the replay!
Also, I don't have to reboot ... toggleing airplane mode takes care of it, i was just saying reboot is another alternative.
---------- Post added at 10:34 AM ---------- Previous post was at 10:25 AM ----------
bercyy said:
Hi everyone, as I wrote before got data connection issue while getting away from wifi. The data cannot start automatic. I found out that it happens only if GSM/ WCDMA /LTE automatic connection is selected in the settings. When I adjust GSM/ WCDMA automatic connection - everything is ok. I was trying automatic switching and runs perfect. So if u dont use LTE, better say if the WCMDA is enought for u, it can be less annoying solution as manualy turn on/ off airplain mode. I hope next update fix this issue at all. Have nice day.
Thanks for the tip.
Click to expand...
Click to collapse

This is definitely a software problem, but I have no idea how to fix it... when I first rooted everything was fine (I was on Malladus). Then I went to CM-based ROM and it was still working well.... then I updated my PRL (*228) and things started going south and I haven't been able to get it back working since.
I'm thinking of going back to Stock and starting over from scratch to see if I can fix the problem.... if anyone has an update on this issue I would greatly appreciate some advice!

potential fix for this issue?
Hi everyone. I had this phone for about 3 months. and the data connection thing has been annoying for me.. So the problem to start off with is at first I dont seem to get LTE at all during the first 2 days. I found online that the 3845#*802# or *#*#4636#*#* got me into adding LTE back into the system but problem is when I reboot. it goes back to WCDMA only or GSM WCDMA. and I lose LTE. But atleast I have LTE when I didnt reboot it. Then I found another problem which is losing data after I used LTE for a while. It won't reconnect until I reboot the phone or SOMETIMES it will return if I go into airplane mode and back. After some long research. I found this to be working for me.
So this is my story of how I got it to work for me
To start off with. This is what I am using
LG G2 D802
Android version 4.4.2
Baseband Version M8974A-AAAANAZM-1.0.190082
Kernel Version 3.4.0
Build KOT49I.D80220b
Software D80220b
My provider is Metropcs so if anyone has other issues with other providers. I don't know if this will help you.
First thing this phone needs is it has to be rooted - that part you do your own research and wont be hard since you are on XDA!!!
Then to get LTE working, you will need to type in 3845#*802# on your phone to get into the hidden menu
LTE-only ---> Modem Settings ---> RAT selection and select GSM / WCDMA / LTE Auto (will display SUCCESS) tap OK
This will give you LTE from the phone but it will not give you this option in your Mobile Networks / Network mode section (Preferred network mode) Atleast it didn't display it for me.
For my phone I had to edit the build.prop file for it to show it in the preferred network mode list.
In the build.prop file. You will have to look for this line and change the 9 to a 11. I've also saw some post about it being not a 9 and have to change to 12 for some networks. ALSO MAKE SURE YOU DO NOT CHANGE IT TO A NUMBER 0. It will crash the phone.
From
ro.telephony.default_network=9
To
ro.telephony.default_network=11
After this I got me LTE connection but issue with the lost of settings after reboot started. So next part helps with the reconnection after reboot. I got this from a post in XDA So give credit to the person that posted this. Sorry if I dont have it handy as I wrote this
- Root
- Install and activate Xposed fw
- Install and activate Intelli3G module
- In build.prop change ro.telephony.default_network=9 from 9 to 11
- Create a Tasker profile of type Event -> System -> Device Boot
- Associate the profile to a new Task of type Misc -> Send Intent
- Configure the task by setting in the "Action" field the value "action.intelli3g.CHANGE_NETWORK_TYPE" and in the first "Extra" field set the value "extra.intelli3g.NETWORK_TYPE:10"
Doing this got my reconnection after reboot fixed. and LAST is the problem of randomly losing data connect until I reboot the phone. and after a long test.. This is my result. The phone lost connection due to trying to connect to LTE with non existing band. I don't know too much about those but from my testing. This is how I made my phone worked and it has been working for the last 2 weeks without any issue.
Go back into the hidden menu with 3845#*802#
LTE-only --> Modem Settings --> LTE Band Selection
Here you will see a Band with a number.
MetroPCS supports band 2, 4, 5 and 12
Since this phone doesnt have 12. You only select 2, 4 and 5 then just push back until the hidden menu closes.
Other providers. I dont know what band that they use. but i am guessing if you only select the bands that company supports. You might not have that issue with losing data anymore.
Please press thanks if this works for you.

Mobile data not working

Hi has anyone come across this, had the phone a week now all of a sudden today can not get mobile data 4g e or anything but I'm still getting signal for phone calls etc tried rebooting and re inserting sim but nothing and areas fine checked with ee

Probably a silly question, but have you turned mobile data off?
Sent from my SM-G925F using Tapatalk

Check your APN settings.

foxmeister said:
Probably a silly question, but have you turned mobile data off?
Sent from my SM-G925F using Tapatalk
Click to expand...
Click to collapse
Hi, noticed this can happen if you are somewhere and you lose all your signal....won't reconnect to data when you get a signal again.
Turning phone off/on, data off/on, airplane off/on doesn't help..... only thing that worked was in network settings - change to 3G/2G only, then toggle back to 4G/3G/2G auto....seemed to kick it back to life.

Thanks finding out now that nobody can call me and can't call out if I do it goes to 3g then h then nothing and have to re insert sim if nobody calls I can use mobile data but still not the phone don't get it like when someone calls I lose the signal it goes off never had this issue and had plenty of phones could the sim connection be faulty?but then mobile data comes on and works it was all working fine for a week I'm baffled

nobnut said:
Check your APN settings.
Click to expand...
Click to collapse
What do I do in apn?please

falsivas said:
Hi, noticed this can happen if you are somewhere and you lose all your signal....won't reconnect to data when you get a signal again.
Turning phone off/on, data off/on, airplane off/on doesn't help..... only thing that worked was in network settings - change to 3G/2G only, then toggle back to 4G/3G/2G auto....seemed to kick it back to life.
Click to expand...
Click to collapse
Done that mate and doing that allows me to keep mobile data from knocking off but won't go back to 4g unless re insert sim and still no phone calls in or out whatsoever cheers

russcausier said:
Done that mate and doing that allows me to keep mobile data from knocking off but won't go back to 4g unless re insert sim and still no phone calls in or out whatsoever cheers
Click to expand...
Click to collapse
Hi, not the same issue I was having...I could still make and receive calls and sms's.....just no data connection. Only thing I can suggest is trying a different sim card - if the fault appears with a new sim , then it's the phone at issue.

The following process helped for my problem which exhibited the same symptoms twice: 1. Switch off the phone; 2. Pull out the sim card and insert it back; 3. Switch the phone back on. Hope it helps

U in australia?if so its a telstra problem have the same problem the last 2 days.

Ausboy 2011 said:
U in australia?if so its a telstra problem have the same problem the last 2 days.
Click to expand...
Click to collapse
No mate in uk been fine for a week no issues never did anything different can't work out if it's phone or sim but put my wife's sim in mine and it does same with that try ringing doesn't get through and if someone rings me knocks my 4g and mobile data completely off never seen anything like it

Also should I have the reception bars there if no mobile data thought I just needed the reception bars to be able to call and text not 4g?am confused now

Read somewhere to wipe data and app or two by going into recovery but it doesn't do anything in recovery just blue screen saying downloading for ages but nothing happens so maybe need to root it

Is This Single Sim OR Dual Sim .... S7

It's for 1 sim and 1 sd card

I have a dual sim s7 edge. Unlocked. Decided to go with T-mobile. Data comes on for a minute and then disappears until I restart the phone again. Even though I select sim 1 as the one that should use the mobile data, when I drag the top of my screen where it says: "calls sim 1; messages sim 1..." it says data sim 2.... WHYYYYYYYYYYYYYYYYY?
EDIT: So I have tried various options time and time again for the dual sim mobile data issue. For me - it worked when I disabled sim 2, but when I re-enabled it, it started defaulting back to sim 2 for mobile data and it was effed. So finally, even though this is not ideal (but doesn't make 'real' difference), I replaced by sims - put my main sim (for calls, txt, data) in the slot for sim 2 and put my backup sim (for calls,txt) in tray for sim 1. It works without a problem so far (24h test so far).
EDIT 2: So after 48h, my mobile data started defaulting to sim 1 (which was now my backup sim, since before it was defaulting to sim2)... I have NO idea!!! Am I gonna have to change the sim placements every1-2 days??!?!?! Please let me know if you have any other fixes. Thanks

My phone worked fine for a few days and now 4g doesnt work any more only 3g and i cant find how to fix this
Poslano sa mog SM-G935F koristeći Tapatalk

Is there a way to fix this ? ?
Poslano sa mog SM-G935F koristeći Tapatalk

I've not fixed or found a way so it's currently in Samsung shop being fixed 2-3 working days it takes we'll see if they can fix it
Sent from my MotoG3 using XDA-Developers mobile app

Just discovered I've been blacklisted after purchasing the phone for 510 and he's had it blocked what a complete bell end in an ideal world I could knock the seven bells out of him and take his phone **** sake what kind of people do this im not racist at all but I'll never trust an Asian again!!!
Sent from my SM-G935F using XDA-Developers mobile app

HELP! I Can't Use my Mobile Data, Only WIFI

Hello, I am from Venezuela and i have a verizon samsung galaxy s5 with android 6.0, so my problem is: when i were using android 4.x and 5.0 the mobile data normally work, but i just upgrade my ORIGINAL firmware to 6.0 and now mobile data work no more? i have the apn set for movistar venezuela and i can call or send text message but i cant use mobile data.
P.D.: with 4.x and 5.0 my phone stick at H+, now i can only get a transparent E or H. you know as if the mobile data were off.
Srry for my bad english and Thx for the help.

were you able to fix the problem? having the same issue?

Connecting with Data Networks with CM13 Nightly
usama_92 said:
were you able to fix the problem? having the same issue?
Click to expand...
Click to collapse
Funny you guys should mention this issue, but I found the workaround elsewhere. I can't remember where now, but it's easy, and ONLY needed until your Data issues resolve.
Try turning ON your Airplane Mode. Just for about 2 seconds. That's all: 2 seconds, then turn it OFF. That's it!
The Data Network Connection SHOULD reconnect correctly. Try again if it doesn't. Give it a bit, a few seconds. Watch the "data up, down" arrows to see if they show up. If they don't, try it one more time.
If they don't that 2nd time, turn off the Data Connection, wait a few seconds or so, then try again. I can ALMOST promise it'll work.
Mine was SO stubborn but I was merciless! I was FINALLY able to get it to work!!
Now I rarely have to do it and when I do, it only takes once to make the connection.
Best of luck! ?

Mobile data not going inactive when wi-fi connects?

So when I first got my V20 (VS996), when wifi was connected the mobile data went inactive- at least I'm presuming so, the '4G' was grayed out, not crossed out, and when there's simply no 4G signal it entirely disappears (or drops to 3G etc). But now it ALMOST never does this anymore... every once in a while it will, but there's nothing specific about times it does.
I'm pretty sure that's what it's supposed to be doing, as there's even an option 'Cellular data always active - Always keep mobile data active, even when Wi-Fi is active [...]' (not enabled). I've searched high and low for a setting that could be causing it not to work right, and information about this, but have come up dry. Is anyone familiar with this? Really didn't want to have to reset and track it that way.
Thanks.

Bad WiFi signal bro. Disable your gsm data and see if you can still watch YouTube.
Sent from my LG-H990 using XDA-Developers Legacy app

fafalone said:
So when I first got my V20 (VS996), when wifi was connected the mobile data went inactive- at least I'm presuming so, the '4G' was grayed out, not crossed out, and when there's simply no 4G signal it entirely disappears (or drops to 3G etc). But now it ALMOST never does this anymore... every once in a while it will, but there's nothing specific about times it does.
I'm pretty sure that's what it's supposed to be doing, as there's even an option 'Cellular data always active - Always keep mobile data active, even when Wi-Fi is active [...]' (not enabled). I've searched high and low for a setting that could be causing it not to work right, and information about this, but have come up dry. Is anyone familiar with this? Really didn't want to have to reset and track it that way.
Thanks.
Click to expand...
Click to collapse
developer options
keep mobile data always on
as well as agressive wifi to cellular handoff
as well as under advanced for wifi, you can tell it to switch more agressively off wifi under poor conditions etc

somemadcaaant said:
Bad WiFi signal bro. Disable your gsm data and see if you can still watch YouTube.
Sent from my LG-H990 using XDA-Developers Legacy app
Click to expand...
Click to collapse
Bad WiFi doesn't seem to be the issue. It's showing max strength and is 2 feet away from the wireless router under my desk, and the issue still persists. (yes, youtube plays fine in HD)
Team DevDigitel said:
developer options
keep mobile data always on
as well as agressive wifi to cellular handoff
as well as under advanced for wifi, you can tell it to switch more agressively off wifi under poor conditions etc
Click to expand...
Click to collapse
I'm trying to get it to turn mobile data off, not hand off to it even easier. Are you saying that these options will make it disable mobile data when wifi is good, when it's not even doing that without them? Tried that just in case, it's still not deactivating mobile data (still at my desk, wifi router for 100mbps symmetric fiber showing full strength 2' away, so unlikely bad signal)
Edit: I may have found the issue. It appears one of the Verizon apps was forcing the cell connection to stay alive. I tried killing a bunch of the ones I wasn't using after recalling how their voicemail app only runs over cellular, and now mobile data is deactivated. I'll need more trial and error to confirm which one was doing it.. I killed 4 of them.. and it stayed off after re-launch so was clearly some kind of bug. Although it's odd as it did persist through reboots.
Edit: Confirmed; it's the 'Caller Name ID' app. Ending that single process restores the normal mobile data deactivation when wi-fi is good.

So another cause of this problem has popped up. After a reboot, 4G was becoming active after 15-30 minutes despite not touching the phone at all since the reboot, and there were no apps that could be killed to get it to switch off this time. But after a lot of trial and error, the cause was finally isolated: The My Verizon data meter widget. Once it refreshes, it forces cellular data to stay on, even when Wi-Fi is connected and strong. Once the widget was removed from the home screen, 4G never came back on while using WiFi.
Is there any way to disallow an app from using 4G but still allow it to use WiFi? I really would like a better solution than just not being able to use the widget. It would be fine if it just connected, got its update, then disconnected... but no, it's on permanently after a refresh.

Wi-Fi Calling T-Mobile USA (SOLUTION FOUND!)

SOLUTION AT BOTTOM
Seems like over the last day it doesn't want to stay connected to the Voice over Wi-Fi. If I toggle it it'll stay on for a few seconds and then the icon will disappear.
This is on both mine and my wife's OnePlus 8 Pro.
I've tried to restart device.
I've toggled airplane mode on/off
I've manually entered the APNs per T-Mobile's website even though the auto set ones by the phone were the same.
I went into *#*#4636#*#* and it shows I'm provisioned for Vo-WiFi.
I'm stumped. Is the network just being glitchy right now or is there something I'm missing on two different phones?
SOLUTION: Well in short OnePlus needs to send out a patch to fix this. How can you report a bug to them to fix?
Here's what I found out. Someone feel free to change your own router settings and see if the same thing happens:
My WiFi is set to WPA-PSK [TKIP] + WPA2-PSK [AES]. It doesn't work on that. If I set it to WPA2-PSK [AES] it works fine.
There are plenty of hotspots out there that are set up to one and some to the other. There's no reason it shouldn't work on either. Regardless, I changed the setting on my router and it's "fixed" but OnePlus needs to send out a patch or something.

Nosferatu. said:
Seems like over the last day it doesn't want to stay connected to the Voice over Wi-Fi. If I toggle it it'll stay on for a few seconds and then the icon will disappear.
This is on both mine and my wife's OnePlus 8 Pro.
I've tried to restart device.
I've toggled airplane mode on/off
I've manually entered the APNs per T-Mobile's website even though the auto set ones by the phone were the same.
I went into *#*#4636#*#* and it shows I'm provisioned for Vo-WiFi.
I'm stumped. Is the network just being glitchy right now or is there something I'm missing on two different phones?
Click to expand...
Click to collapse
I ma curious on what you find out because im about to switch to the 8pro to see if i can switch the WIFI calling feature on, on Verizon network..

kng60ft said:
I ma curious on what you find out because im about to switch to the 8pro to see if i can switch the WIFI calling feature on, on Verizon network..
Click to expand...
Click to collapse
Well I'm stumped it doesn't work at my house or my local supermarket but at my mother's house all day today maintained a Vo-WiFi so something to do with the routers... The investig continues

Yeah when I'm at work or at home I have no issues of VoWifi, mines works perfect on my 8 pro with TMobile prepaid

Nosferatu. said:
Well I'm stumped it doesn't work at my house or my local supermarket but at my mother's house all day today maintained a Vo-WiFi so something to do with the routers... The investig continues
Click to expand...
Click to collapse
That's definitely interesting. My friend down the street got the OP8P the same day as me. He seems to see VoWifi more than I do. If I toggle airplane mode, I'll get VoWifi for about a minute before it eventually switches back to VoLTE. I also am having some stability issues where the wifi signal is there, but goes bad... and the cell signal disappears altogether. If I toggle airplane mode, it goes back to normal (see attachments).
(EDIT: Not sure if both screenshots are showing, as the XDA app seems to be acting weird)

Okay this is DEFINITELY a OnePlus software bug I sent them an email via their customer support.
If I connect the wireless bullet z, wifi calling works and maintains a signal. I disconnect from all bluetooth devices and within a minute bam wifi calling icon goes out.

Updated original post found the "solution" myself. In short, how do you report a bug to OnePlus?