[Q] 4G LTE not working. - AT&T LG Optimus G

I recently got an LGOG and flashed Cyanogenmod 10.2 onto it. The WiFi wasn't working so I flashed the JB radio to it and everything worked fine. After leaving my house I realize that mobile networks were not working. I switched my access point from "ATT LTE" to "ATT" and then it worked fine. Now for all I know, 4G could be working just fine. However there is no 4g LTE symbol in the notification bar like there is on every other phone I have seen.
Should I try another radio? Should I try another access point?
Thanks.

elguy said:
I recently got an LGOG and flashed Cyanogenmod 10.2 onto it. The WiFi wasn't working so I flashed the JB radio to it and everything worked fine. After leaving my house I realize that mobile networks were not working. I switched my access point from "ATT LTE" to "ATT" and then it worked fine. Now for all I know, 4G could be working just fine. However there is no 4g LTE symbol in the notification bar like there is on every other phone I have seen.
Should I try another radio? Should I try another access point?
Thanks.
Click to expand...
Click to collapse
Most AOSP-based ROMs don't show LTE in the status bar. When you see "4G", that's AT&Ts LTE. When you see "H+", that's 4G. "H" is 3G, etc.

Digil said:
Most AOSP-based ROMs don't show LTE in the status bar. When you see "4G", that's AT&Ts LTE. When you see "H+", that's 4G. "H" is 3G, etc.
Click to expand...
Click to collapse
Alright, well I browsed for a while, downloaded an app, and ran speedtest but all I ever saw was just "H". I am assuming that it is the access point I am using.
There is another access point called "ATT LTE" in my phone by default, but when I use that the 5 bars just stays grey and never turns blue. I can post the settings if you would like.

elguy said:
Alright, well I browsed for a while, downloaded an app, and ran speedtest but all I ever saw was just "H". I am assuming that it is the access point I am using.
There is another access point called "ATT LTE" in my phone by default, but when I use that the 5 bars just stays grey and never turns blue. I can post the settings if you would like.
Click to expand...
Click to collapse
Make sure you have lte on in network mode, then search networks and after it searches select register automatically. Also sometimes bars stay grey if not connected to Google even though you have data service, try opening play store and see if they change.

adfurgerson said:
Make sure you have lte on in network mode, then search networks and after it searches select register automatically. Also sometimes bars stay grey if not connected to Google even though you have data service, try opening play store and see if they change.
Click to expand...
Click to collapse
The network mode I am using is "LTE/WCDMA". After searching for networks it says "Error while searching for networks" and when I press the choose automatically button nothing happens. Applications are still saying no network connection.

elguy said:
The network mode I am using is "LTE/WCDMA". After searching for networks it says "Error while searching for networks" and when I press the choose automatically button nothing happens. Applications are still saying no network connection.
Click to expand...
Click to collapse
Try LTE/GSM/WCDMA.

adfurgerson said:
Try LTE/GSM/WCDMA.
Click to expand...
Click to collapse
Works fine for 3G. But then when I switch to the ATT LTE APN mobile data no longer works.

http://webchat.freenode.net/?channels=lg-optimus-g
Link for irc. Other than trying a reboot or reflashing ROM after full wipe ( I know stock answers that usually don't work) I am stumped.

adfurgerson said:
Link for irc. Other than trying a reboot or reflashing ROM after full wipe ( I know stock answers that usually don't work) I am stumped.
Click to expand...
Click to collapse
Alright I'll ask there later. Thanks.

I am using CarbonRom and I can't get the network mode to stay on LTE. It keeps changing back to WCDMA only. Does anyone know what is causing this?

Related

3g/4g data doesn't work; Wifi works fine

I just flashed to Diet ICS 7.11.12 ROM. Everything works fine but I noticed I can't access any data over 3G or 4G. Any ideas? Wireless data works just fine. I can make phone call and text ok without wireless access.
Thanks!
Type2 said:
I just flashed to Diet ICS 7.11.12 ROM. Everything works fine but I noticed I can't access any data over 3G or 4G. Any ideas? Wireless data works just fine. I can make phone call and text ok without wireless access.
Thanks!
Click to expand...
Click to collapse
Is this in the wrong forum?
When I go from Settings --> Wireless and network --> More Settings --> Mobile Networks --> Network Operators
There is nothing listed except for "Default setup" which is greyed out and non-selectable.
Should something be listed here? I am searching on xda and google in the meantime, but noone has anything like my issue that I can tell.
Thanks
No one on XDA has had this issue? Really? I have been using custom ROMS on my Captivate for over a year. I have ICS on it right now. Just picked up the SGIII, immediately rooted it using the "No Tripping Flash Counter" method, then installed diet ICS. Went without a hitch easy peasy. BUT I can only access data over wireless.
Any ideas?

how do i stop my 9100 from connecting to 3g

phone setup:
i9100
android ver 4.0.3
baseband i9100mugld3
cf rooted
This may sound like a crazy question but there are 2 locations i'm at a lot that have 0 to 1 bars of 3g and an edge tower right on top of them. Anyway for some reason the phone almost always wants to grab onto the 3g and it is a horrible connection for both voice and data. I have wireless there so i really don't care about data but dropping calls sucks. Is there an app, solution, workaround to forcing the phone onto the cel tower i want to use instead of letting it decide to do the wrong thing?
thanks
Have you tried just turning off mobile data in settings?
Sent from my SAMSUNG-SGH-T989 using xda premium
chewyboy said:
phone setup:
i9100
android ver 4.0.3
baseband i9100mugld3
cf rooted
This may sound like a crazy question but there are 2 locations i'm at a lot that have 0 to 1 bars of 3g and an edge tower right on top of them. Anyway for some reason the phone almost always wants to grab onto the 3g and it is a horrible connection for both voice and data. I have wireless there so i really don't care about data but dropping calls sucks. Is there an app, solution, workaround to forcing the phone onto the cel tower i want to use instead of letting it decide to do the wrong thing?
thanks
Click to expand...
Click to collapse
Settings > Wireless & Network > More > Mobile Network > Network mode > select GSM only and it will only use the gprs connection. If you dont want to use the GPRS connection then uncheck the " Use Packet Data Option ".
I've actually tried that while it disables data it doesn't force a switch on the tower. I guess my title & original question isn't quite right.
so now i guess how do i force my phone onto a different tower so i can actually get good service when i need it.
I just use the switchpro widget, since then i can turn on and off a lot of stuff from my homescreen.
chewyboy said:
I've actually tried that while it disables data it doesn't force a switch on the tower. I guess my title & original question isn't quite right.
so now i guess how do i force my phone onto a different tower so i can actually get good service when i need it.
Click to expand...
Click to collapse
Under mobile network settings, change it from auto mode to gsm only. I guess this is what you are looking for
Swyped from my Galaxy SII
Jokesy said:
Under mobile network settings, change it from auto mode to gsm only. I guess this is what you are looking for
Swyped from my Galaxy SII
Click to expand...
Click to collapse
actually i was just about to post the gsm/wcdma/auto to get it to switch over. However it does not always work sadly. I remember on an old moto (forget model) that i could actually choose a network tower, man i wish i could do that now
chewyboy said:
actually i was just about to post the gsm/wcdma/auto to get it to switch over. However it does not always work sadly. I remember on an old moto (forget model) that i could actually choose a network tower, man i wish i could do that now
Click to expand...
Click to collapse
It perfectly works for me. If i set gsm only, it stays on edge and if i set wcdma only, it stays on H+ for me.
sorry should have been more specific again. it will go to edge but will often decide to pick a tower far away instead of a close one

[Q] Problems connecting to Wi-Fi -- but only at work

[my apologies in advance if there's a thread on something like this already - the XDA forum search function was not working this morning]
I've got a sort of bizarre problem that I cannot sort out.
We have an open wi-fi network at work which I've been connecting to with my Inc4g [not rooted, still running stock everything] since last summer. At some point in December, though, I stopped being able to connect to it. Here's where it gets weird:
A) My other co-workers with various other kinds of phones have not noticed any change or disruption with the work wi-fi,
B) I brought my old 2010 Incredible to work the other day and it had no trouble immediately connecting to the wi-fi network, and
C) My Inc4g still connects to our wi-fi network at home with no issues
So it is very specifically an issue with my Inc4g connecting to my work's open wi-fi.
When I toggle my wi-fi on, this is exactly what happens:
1) it sees the saved network
2) it then just constantly goes back and forth between "saved" and "connecting"
3) it also occasionally flips wi-fi off entirely and briefly displays the "to see available networks, switch on wi-fi" message... but then it flips wi-fi back on and goes back to #2
It shows signal strength for the network as poor if I look at the modify network menu, but that seems unlikely given A and B above. I have also tried telling it to forget the network and rescan, but that does not change anything. I have NOT asked firm IT about whether they changed anything with our routers, but it seems like that should not be the issue.
Any thoughts or suggestions???
Thanks for reading the tl;dr if you made it this far.
samstein66 said:
[my apologies in advance if there's a thread on something like this already - the XDA forum search function was not working this morning]
I've got a sort of bizarre problem that I cannot sort out.
We have an open wi-fi network at work which I've been connecting to with my Inc4g since last summer. At some point in December, though, I stopped being able to connect to it. Here's where it gets weird:
A) My other co-workers with various other kinds of phones have not noticed any change or disruption with the work wi-fi,
B) I brought my old 2010 Incredible to work the other day and it had no trouble immediately connecting to the wi-fi network, and
C) My Inc4g still connects to our wi-fi network at home with no issues
So it is very specifically an issue with my Inc4g connecting to my work's open wi-fi.
When I toggle my wi-fi on, this is exactly what happens:
1) it sees the saved network
2) it then just constantly goes back and forth between "saved" and "connecting"
3) it also occasionally flips wi-fi off entirely and briefly displays the "to see available networks, switch on wi-fi" message... but then it flips wi-fi back on and goes back to #2
It shows signal strength for the network as poor if I look at the modify network menu, but that seems unlikely given A and B above. I have also tried telling it to forget the network and rescan, but that does not change anything. I have NOT asked firm IT about whether they changed anything with our routers, but it seems like that should not be the issue.
Any thoughts or suggestions??? I cannot get 3g/4g at my desk and I'm dying here without streaming audio/music!
Thanks for reading the tl;dr if you made it this far.
Click to expand...
Click to collapse
Erase network and try again
Sent from my ADR6410LVW using xda app-developers app
jose51197 said:
Erase network and try again
Click to expand...
Click to collapse
I have already tried telling it to "forget network" and that that didn't help.
Or do you mean something else when you say "erase?"
In the menu where it shows the networks hit the menu button then select advanced then un check the one that says avoid poor connections
Sent from my DROID RAZR using Tapatalk 2
jamminjon82 said:
In the menu where it shows the networks hit the menu button then select advanced then un check the one that says avoid poor connections
Click to expand...
Click to collapse
I have tried with that setting both on and off and it's made no difference.
Thanks for the replies, though.
Are you rooted and/or s-off? Which ROM are you running? If stock, old or new?
junkmail9 said:
Are you rooted and/or s-off? Which ROM are you running? If stock, old or new?
Click to expand...
Click to collapse
Whoops -- forgot to add that info -- not rooted.
Started the unlock process with htcdev back in July literally hours after they shut that down (when folks did not even realize they had shut it down) and then never got around to tinkering after that. Most recent software update was Oct. 2012.
Might as well also add --
Not only does my phone connect successfully to WiFi at home, but it also connects to my open work network when upstairs in our cafeteria (obviously via different router).
It just doesn't work in my specific place in the building. It presumably has to do with the router near my workstation. From the exact same location, various other Android phones and iPhones all connect without issue. It's driving me nuts.
samstein66 said:
Might as well also add --
Not only does my phone connect successfully to WiFi at home, but it also connects to my open work network when upstairs in our cafeteria (obviously via different router).
It just doesn't work in my specific place in the building. It presumably has to do with the router near my workstation. From the exact same location, various other Android phones and iPhones all connect without issue. It's driving me nuts.
Click to expand...
Click to collapse
That is truly bizzare.
When you try and "forget" the network, does it disappear from the list? But the problem returns when you try to reconnect, or does it never leave the list?
junkmail9 said:
That is truly bizzare.
When you try and "forget" the network, does it disappear from the list? But the problem returns when you try to reconnect, or does it never leave the list?
Click to expand...
Click to collapse
Yeah, it's gone from the list of networks when I tell it to forget. If at home, it stays gone. And if at work, it only reappears when it rescans for available networks.
I'm sort of tempted to just factory reset at this point, but don't feel like losing all my settings/apps/etc.
samstein66 said:
Yeah, it's gone from the list of networks when I tell it to forget. If at home, it stays gone. And if at work, it only reappears when it rescans for available networks.
I'm sort of tempted to just factory reset at this point, but don't feel like losing all my settings/apps/etc.
Click to expand...
Click to collapse
Well root use titanium backup and you are set
Sent from my ADR6410LVW using xda app-developers app
jose51197 said:
Well root use titanium backup and you are set
Sent from my ADR6410LVW using xda app-developers app
Click to expand...
Click to collapse
Unfortunately, he'll lose all settings in the rooting process during the RUU step.
It was worth the one time pain for me.
Sent from my Fireball using Xparent Blue Tapatalk 2

[Q] Amaze 4G Wifi Issue

Hi all! Yes, I'm a newbie. I am using HTC Amaze 4G from T-Mobile and with their ICS update, I have not been able to use Wifi... It is not hardware related problem: When I'm in the university, I can connect to the university Wifi without any problems; when I come home, even though I can see 20 networks available from my laptop, from my phone I cannot see any... I am wondering if I go for Custom Rom, can I solve this issue? (In that case, I think I need to read the forum a lot to learn all these )
Try this:
https://play.google.com/store/apps/details?id=com.roamingsoft.manager
I have just tried this: When I use fix network, for a while it shows all possible available networks and then shows nothing. It just says Scanning and no networks are shown after the fixing.
It shows the available networks while exiting the airplane mode. And, in fact, even though it says so, my phone still remains in the airplane mode.
Settings >> WiFi >> Menu >> Advanced >> Best WiFi Performance
Settings >> WiFi >> Menu >> Advanced >> Keep WiFi ON during sleep - ALWAYS
Unfortunately the behavior is the same, it didn't change it
cihhan said:
Unfortunately the behavior is the same, it didn't change it
Click to expand...
Click to collapse
Can you anyhow see all those SSID with this
https://play.google.com/store/apps/details?id=com.farproc.wifi.analyzer
Unfortunately, it doesn't show anything
cihhan said:
Unfortunately, it doesn't show anything
Click to expand...
Click to collapse
Do they really exist..?
They exist. I can see them from my laptop. I didn't know there were so many, after seeing them on my phone, I checked from my laptop and yes, one-to-one match.
Additional info: Im in the university right now and I can connect to WiFi here -- I can see all available WiFis -- when I am at home, I have 20 WiFis available around; however, my phone doesn't see any of them... And, unfortunately, my reception is not so good at home, I was using WiFi Calling; now, I'm struggling with phone calls.
cihhan said:
Additional info: Im in the university right now and I can connect to WiFi here -- I can see all available WiFis -- when I am at home, I have 20 WiFis available around; however, my phone doesn't see any of them... And, unfortunately, my reception is not so good at home, I was using WiFi Calling; now, I'm struggling with phone calls.
Click to expand...
Click to collapse
Are you on WiFi Calling at University?
Are you on WiFi Calling at Home?
Is the built-in Hot Spot surely shut down?
Try to shut the WiFi Calling and use the regular GSM voice calling for a while - and see if any changes/improvements?
cihhan said:
Additional info: Im in the university right now and I can connect to WiFi here -- I can see all available WiFis -- when I am at home, I have 20 WiFis available around; however, my phone doesn't see any of them... And, unfortunately, my reception is not so good at home, I was using WiFi Calling; now, I'm struggling with phone calls.
Click to expand...
Click to collapse
Are any of these 20 available WiFi connections in YOUR house? If not, maybe your computer just has a really strong wireless card compared to the chip in the Amaze so its picking stuff up further away. Try exiting
Your home and walking different directions ans see if you pick anything up then
sent from my
NRGized amaze
powered by Faux
No I'm not using WiFi calling at the univ; but I need to use it at home bcs of my awful signal quality. Anyhow, I have checked and WiFi calling is disabled and no hotspots are available from my phone. And I still have the problem
At least 1 of them is from the wireless modem next to me
Here is a question is your wifi modem using wep type security or wpa? On my amaze it has a hard time picking up wep security routers (which is fine its crap security anyways) so change your router to WPA standard and see what happens. Good luck
Sent from my HTC_Amaze_4G using xda app-developers app
WPA-PSK and the problem right now is not I cannot connect. My phone doesn't see any WiFi when I am at home.
With 20 networks all that close they may be interfering with each other. Try using a WiFi analyzer on your computer to change your router's channel or frequency.
Sent from my Amaze 4G using xda premium
That is quite possible but I wasn't having this issue before ICS update from T-Mobile. Still, I will try different channels just to be sure.
I have tried changing the channels but it didn't work neither. In fact, the weird thing is none of the networks are visible. I can see the list only when I am using Wifi Connection Manager's fix Wi-Fi Problems button and it is only for 1 sec. Then it's a clear list...
Today, I have seen that my phone is able to see the WiFis around but not near my apartment -- that's like a joke, isn't it? Somehow, when I'm close the apartment, I can't see any WiFis available. This might be because of interference as you suggested. But, it was working all fine before ICS update and right after the update, it started behaving this way. Any suggestions?

[Q] 4g and wifi icon after 4.4

I now have a 4g and wifi icon present on the notification bar when connected to wifi, not just a wifi icon, any one else with this problem?
Not a "problem", just a change they made. Even with mobile data off you will still have the icon letting you know there is data coverage available. Don't know why they changed it, but thats what they do lol
Coycaine said:
Not a "problem", just a change they made. Even with mobile data off you will still have the icon letting you know there is data coverage available. Don't know why they changed it, but thats what they do lol
Click to expand...
Click to collapse
Change, for the sake of change. I can almost hear the software engineers: "Well, there's really nothing wrong with this, but if we change it, people will think it's a "NEW AND IMPROVED" feature!
I have 2 S4. On one the 4g stays grayed when WiFi is running. My other S4 has the 4g on while WiFi is on. In each case, neither shows any 4g activity (arrows moving) with WiFi on. This is rather odd since both are setup the same with regards to WiFi and mobile data.
Update: by turning off Caller Name ID app, I have both of my S4 acting in the same way (4g consistently grayed out when WiFi on). Why the app affects the 4g icon is beyond me.

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