Hi, i've had these problems with disconnect from cellular network(4G/LTE/3g/2g etc) after going off wifi
or just at random for a while now. a week ago it totaly stopped working.
so i did alot of research here, and no one with the same problem had found a solution.
so i tried everything, hard reset, wipe, install different roms, check IMEI stuff, settings in *#*#4636#*#*. but nothing did it.
So i had noting left to do then just try a bunch of things out. i was lucky to get cellular network working again just now.
The problem for me was my APN(Access Point Names). i thought this would be done automaticly, i guess it did, but chose the wrong one.
so my fix was in: setting > Sim Cards > sim * settings > Access Point Names
Add a new APN with the pluss icon, and find your cellular network providers settings that is needed for the network connection.
luckaly my provider had theire settings deep down on theire web page.
hope this works for you guys aswell. i just found out about this and have no idea if this will fix it totaly.
I can come back with feedback after a while on how its holding up
Related
Hello everyone, i'm asking this because it's the third time i had this issue. I often keep my Data Network Mode deactivated and turn it on only when i need because of my 3g plan (quota, taxes, and also because it's likely to find a WiFi network in the places i usually go).
The problem is, sometimes i turn on 3g (by Phone options menu) and... nothing happens... i need to reboot to make it work again.
The 3G network in my country is quite unstable, but i'm pretty sure that isn't a signal problem because one of the times i was turning on/off the 3G to make it work and i gave up and forgot to turn it off, the next day when i tried again i found it was On but not connected. After a reboot, working again.
Anyone having this issue who found a fix? Could be a problem with the kernel or app?
Edit: I Forgot: CF-ROOT Kernel, KF3
Omega Frost said:
Hello everyone, i'm asking this because it's the third time i had this issue. I often keep my Data Network Mode deactivated and turn it on only when i need because of my 3g plan (quota, taxes, and also because it's likely to find a WiFi network in the places i usually go).
The problem is, sometimes i turn on 3g (by Phone options menu) and... nothing happens... i need to reboot to make it work again.
The 3G network in my country is quite unstable, but i'm pretty sure that isn't a signal problem because one of the times i was turning on/off the 3G to make it work and i gave up and forgot to turn it off, the next day when i tried again i found it was On but not connected. After a reboot, working again.
Anyone having this issue who found a fix? Could be a problem with the kernel or app?
Edit: I Forgot: CF-ROOT Kernel, KF3
Click to expand...
Click to collapse
mate i am afraid you have answer already - "The 3G network in my country is quite unstable"
that can clearly produce the bug. Just in the case check your APN settings if they are correct. Settings- wireless and network-mobile networks- access Poin Names - compare the stats there with your network provider and make deep research.
just example i am on vodafone - i found that i was running vodafone live profile in APN and i was loosing conexion and i had troubles loading some pages - after research i found that there is another setup for vodafone as well - different then the live but for vodafone as well. i am using it since then and i am experiencing now the lighting speed of 3g. Just give it a try.
Searching on the internet i found that the configuration of my APN is equal to the recommended.
Backup data and factory reset phone should clear any software problems .
You could try flashing KH3 modem .
jje
Same issue here for both rooted and un-rooted GS2
Retracted - will have to do more testing
Hey Guys,
Ever since I switched from the original branded Three UK ROM, I've had basically no internet access at all on my phone.
Everything else works flawlessly, except I can't get internet connectivity.
I installed one of the "pre-rooted" roms from the forum a few days ago (unbranded UK Rom) and the issue still exists regardless of what APN settings I use or how I go about enabling/disabling the connection.
The phone simply dosen't show any kind of GPRS/3G signal on the status bar and only shows the standard phone signal with a little "R" above it. I've tried literally everything (going to the power menu, enabling/disabling data, etc). I've tried various APN settings posted on forums, but nothing works.
What else could cause this? The thing that is frustrating is that the internet previously worked on the phone.
Cheers,
David
Sounds to me like your phone is on national roaming..untick the box in mobile network settings, i to am on 3 uk and have never had any problems, are you 100% your apn`s are right ..let us know if you need check them with mine.
it does sound to me like we will have to step by step your settings to make sure there same as mine ie...know working.
Thanks for the reply lodger, where do you enable/disable national roaming on the phone?
Can you post all your settings so I can check against mine.
Thanks for the help
davidmichaeluk said:
Thanks for the reply lodger, where do you enable/disable national roaming on the phone?
Can you post all your settings so I can check against mine.
Thanks for the help
Click to expand...
Click to collapse
Settings > Mobile Network > Data Roaming (Check or uncheck).
Have you tried flashing a different modem? Try NELP3 (Flash via CMW)
You needn't read this thread. There is nothing of any import here.
I was unable to learn how to delete it, or I would have.
As I mentioned below, I manually updated this phone to Nougat using the LG Bridge program. It complicates matters that I can't remember the exact time-frame for issues. I do remember getting real-time traffic updates using google maps even after I upgraded to Android 7. And I did stream Netflix once while on a 12 hour roadtrip, but I can't remember if that was before or after the road-trip. I have found and tried many APN's for the H2O service. Some are supposedly specifically for the G5, others just for mms or internet. Most recently, I did a factory reset after backing up my personal data and media. Twice now actually. The first time, I ran the backup software soon after resetting and when things hadn't changed, I surmised that maybe I was just importing the problem back onto the phone in my settings or something, so I reset again and this time only chose two of the settings categories near the top of the list since they seemed separate to the navigation programming.
I'm going to reset again now and see if the maps work with a stock setup, then see if I can slowly add things one at a time and continually monitor the data functionality.
If a moderator sees this and can delete this post, I would appreciate it since it doesn't seem like it could be helpful to anyone else the way it is. If I am successful in getting the data working and this thread still remains, I will post the process I had followed to achieve that in an "Issue Solved" heading at the bottom. Everything between the snowflakes (*****) is the older post and edits.
*****
History of Issue(s):
>This is my first smartphone and my first Android device
> Bought phone used off swappa running MM 6.?
>Have owned phone for around 8 months
>Volume down button wasn't working, figured I could live with pressing vol up and moving it down manually.
> Thought it would be good idea to upgrade manually to Nougat (10h update) Using LG bridge (about 5 months ago?)
> My carrier is H2Owireless, an AT&T MVNO
> Used to have internet, google maps real-time traffic used to work, Netfilx used to work (both without WiFi).
> Could make calls, send texts, listen to Pandora or Spotify and use my Maps for commuting to work.
> Couldn't send MMS pic msgs.
> Began to learn about APN's and what the different network settings did.
>Tried many APN's and fotzed around with Global, LTE/CDMA, LTE/GSM/UMTS and the submode settings
>Can get 4G and LTE , often have to switch back to Global setting to send SMS/MMS
> Had H2O set up APN as best they knew and network settings to what they felt would work best
> Can do anything and evrything when Wifi is enabled (that's never been an issue)
> I thought phone had bricked about 2 months ago while on a roadtrip.
> Discovered on forum that I could swap cam plus for chin and power on that way.
> Turned out power button was no longer functional
> Learned about vol up + charger to power on phone (use an app to power off and restart phone)
> took off cam plus so I could have phone in case.
And now, I'm standing at the edge of a very deep rabbit hole with a phone that can't use mobile data for most internet access (spotify works, Pandora never worked very well). I've discovered that the version of Nougat I'm running is problematic (update 10h Brightpoint) and that my forcing the update to Nougat might be largely responsible for these issues.
I see myself having a choice between learning how to flash the phone back to Marshmallow, or learning how to flash it up to update 21c... or live without mobile data for most of the functionality I wanted from the phone...
I seek advice from the the forum for which of these options people think I might best choose. Do I need to acquaint myself with these programs used to flash the ROM? Does it seem to you readers that my problems are symptomatic of those which are best rectified by flashing up? Or rolling back to Marshmallow...
I just want to be able to google something while I'm away from wifi.. to get traffic updates while I'm using the navigation.. to listen to spotify.. maybe even watch something on netflix... (calling, SMS and MMS functionality is a given, but I do still have them for the most part).
I can pick things up if I read tutorials / guides... I've flashed PC BIOS before... I could figure it out if I needed to...
But maybe I just need a new chin or clean it? Maybe I should factory reset? Maybe there's other potential causes I'm unaware of?
Any and all suggestions are welcome. It's late here and I won't be reading any responses until tomorrow at work.
Thanking you very much in advance. --Wayne
Edit: I was about to check LG Bridge to see if there was an update available for nougat.. thought I would get this out there first since I was pretty sure I wouldn't get both done tonight..
3rd edit: I checked for LG update, nothing available. I finally decided to factory reset before getting into flashing. That seemed to fix the google maps issue as it seemed to be working without WiFi enabled (I say 'seemed' because my office is slightly below grade and getting a good signal is tough. If it's not working, the address remains grayed out and the connection just buffers, the address filled in after the reset. Then I decided to move some of the things I had backed up from the SD card but neglected to deselect the settings box. After restoring much of what I had backed up, It seemed more like how it had been before the reset. I noticed a small icon next to the signal type and strength meter at the top which hadn't been there before the reset (a small white square with rounded edges that has a zig-zag line going through it that kind of looks like a jagged "N"). Instead of saying offline, the app says poor connection, so I will test it on my way home.. I am hopeful. It seems promising. If I have to reset again, I will deselect settings and set things up fresh; I think that will help. I am beginning to think this isn't so much about my OS or any hardware failure as it is the H2O at&t mvno being throttled or something similar. Even when I'm getting 4 bars of 4G, the maps loads very slowly.. nothing at all like it does on WiFi.
I'll post a final edit after I try it out on the ride home this evening.
*****
So during the last few days I've been unable to make any phone calls, and I don't understand what's actually wrong. There's nothing wrong with either the microphone nor the speakers, as they work in other apps. The problem is that I don't hear other people and they don't hear me I don't appear to have connection problems either since other apps work as usual, with or without wifi. I'm running the Concept 4.0 rom.
It's possible that it might be some sort of water damage because I dropped it in snow the other day but that seems unlikely.
So far I've tried:
-wiping and re-installing the rom
-wiping and installing the Poison rom
-formatting and re-installing
-tried installing without fast dormancy
-restoring back to old backups, where there was no problem, using TWRP
-I tried my SIM-card on an older smartphone and there was no problem.
So does it seem like some sort of hardware failure or some software bug?
Edit: As of now, the phone works however, I've yet to discover why it didn't work in the first place. If you know anything I'm still interested.
Edit 2: So it's been nearly a month since I posted and I'm writing this because I want other people who might have the same problem to be able to fix it. The problem with alot of the roms for the F5121 is that they lack options for controlling exactly which networks to operate on. The fix for this is to enter the "hidden" menus by entering *#*#4636#*#* in the dialer, from there you can fine tune alot of the settings.
On Mobile network settings > Prefered network type.
If you force LTE only and go to a location with no LTE, you won't be able to call also people won't be able to call you.
OC1 firmware, unlocked/rooted.
I had been having trouble getting data connectivity with PagePlus and had been messing with APN settings. Finally, I got data connectivity and everything seemed to be working fine after I went into the testing menu via the dialer (*#*#4636#*#*) and set the radio band to auto. Then, I wanted to upgrade from 4.4.4, I flashed a new Slim ROM. Once that process completed and I booted, my connectivity was completely gone. Before I was only having trouble with data, but now even when I try to make a phone call it says "No mobile network available."
I've tried changing things in the testing menu, adjusting APN settings, and I even did a full wipe and flashed back to 4.4.4, but nothing I've done has worked. I tried the SIM card in an old S3 and I can make calls and text, but no data.
I've spent the entire day researching and trying different things, but I'm at a loss now. I'm probably going to buy a newer phone anyway, but I'd still like to troubleshoot this one. I'm just wondering if somehow I fried the radio or something?
Thanks!