Develop Bugs

[Q] oh my god why can't use lte after upgrade 4.1.2

hey, anyone help me? f180s 20d just can use 3g network...

wchio said:
hey, anyone help me? f180s 20d just can use 3g network...
Click to expand...
Click to collapse
system settings, under wireless and networks, more, mobile networks, network mode, make sure lte is selected

BloodBaron said:
system settings, under wireless and networks, more, mobile networks, network mode, make sure lte is selected
Click to expand...
Click to collapse
yes... i am already selected...

Are you in Korea?
Sent from my LG-E971 using Tapatalk 2

Elisha said:
Are you in Korea?
Sent from my LG-E971 using Tapatalk 2
Click to expand...
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no... i am in hong kong... 4.0 can use LTE

Is your phone 180S?
Sent from my LG-F180S using xda app-developers app

aranciata said:
Is your phone 180S?
Sent from my LG-F180S using xda app-developers app
Click to expand...
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YUP... HAVE ANY PROBLEM HERE???:crying:...

5457#*180#

wangzhiqiang said:
5457#*180#
Click to expand...
Click to collapse
lte setting as same here...:crying:
https://plus.google.com/u/0/photos/...832882423758474529/5832882429766872050?tab=iX

wchio said:
hey, anyone help me? f180s 20d just can use 3g network...
Click to expand...
Click to collapse
I got the same problem, wonder if there is any solution without downgrading the firmware
I am a Hong kong user too

F180S is set to work within 15Hz +/- of send 1755-1765 and recv 1850-1860. there is 2nd set of LTE band but that doesnt overlap w LTE band provided in HK. My guess is the the 20d update has reduced the range to maximize battery life, and stopped working w HK LTE. or they changed it to sell HK version of OG.
Probably possible to just get modem from previous 4.0 version and replace the one for 4.1.2.
Sent from my LG-F180S using xda app-developers app

i think only 180L version is compatible for overseas LTE connection.
those 180S is not compatible...

wchio said:
hey, anyone help me? f180s 20d just can use 3g network...
Click to expand...
Click to collapse
hello
I'm from Ecuador and I have the same problem as you, perhaps already gave the solution, I'm desperate with this problem
---------- Post added at 04:16 PM ---------- Previous post was at 03:55 PM ----------
aranciata said:
Is your phone 180S?
Sent from my LG-F180S using xda app-developers app
Click to expand...
Click to collapse
Hello i have the same problem, i am from ecuador when the phone have the 4.0.4 h version thats is fine, but now upgrade jelly bean nothing work, please are you help me sent a image of 4.0.4 4.0.4 f180s10h or image the base band of this version.
thks

[Q] Your SIM card does not allow connection to this network

I have searched XDA forums and there are HUNDREDS of similar posts, still 0 resolves.
I have bought Optimus G and went to my mobile carrier to receive my new MicroSIM. I put it in my device and I had connection for 20 minutes, and I got a red X on my upper right signal indicator. When I try Automatic registration in Settings > Mobile carriers, it searches and says Your SIM card does not allow connection to this network. My PIN code is correctly working and my phone indicates a SIM is inserted, still no connection.
On my lock screen I get - "No service" message next to a SIM icon. Any help appreciated ))

Try manually entering ur network's apn
Sent from my LG-E975 using xda app-developers app

geoworld_200 said:
Try manually entering ur network's apn
Sent from my LG-E975 using xda app-developers app
Click to expand...
Click to collapse
Thanks for the response.
I can only enter New APN, and when I do so, my phone only uses those provided by default from carrier/sim and not the newly entered one

Is ur phone rooted and running on a custom ROM?
Sent from my LG-E975 using xda app-developers app

geoworld_200 said:
Is ur phone rooted and running on a custom ROM?
Sent from my LG-E975 using xda app-developers app
Click to expand...
Click to collapse
No, I restored it to E975 Europe Open / no root

No sim card and no connection
I have AT&T's LG Optimus G E970 with E975 firmware flashed. When I insert any gsm sim card phone tells that there is no sim card and no connection. I think it happend because of not properly backed up EFS partition. Any user of E970, please send me you EFS!!! I don't know how else I may return my connection back. My e-mail is [email protected]

facing the same problem..

Could be that u guys have incorrect radios?
Sent from my GT-N5110 using xda app-developers app

I had the same problem this week.
I was running savyrom for a couple of weeks without problems, but this week I've got this no service problem.
Avert reflash savyrom v2 (wipe cache and dalvik only), I had a subsystem crash and afterwards kernel crash, even after restore a CWM backup of stock ROM.
First I thought that it was normal because I was in a place with weak signal, but I was not able to connect to the network anymore.
At the moment the phone don't charge because I'm having several kernel crash's.
Sent from my Sony Tablet S using Tapatalk 4

LG optimus F180
Hi, i just want to ask. i own a LG optimus F180L and i'm from philippines. bought it on online store. Now my problem is that i have this korean stuff. and i want to convert it to E975 international version. is there any way to do that?

sushibabaes said:
Hi, i just want to ask. i own a LG optimus F180L and i'm from philippines. bought it on online store. Now my problem is that i have this korean stuff. and i want to convert it to E975 international version. is there any way to do that?
Click to expand...
Click to collapse
Hey, don't post these question anywhere! See this thread for the answer: http://forum.xda-developers.com/showthread.php?t=2434917

MitoTakatori said:
Hey, don't post these question anywhere! See this thread for the answer: http://forum.xda-developers.com/showthread.php?t=2434917
Click to expand...
Click to collapse
sorry. . . deleted. . .

geoworld_200 said:
Could be that u guys have incorrect radios?
Sent from my GT-N5110 using xda app-developers app
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Click to collapse
i has the same thought in mind?sounds alot like a problem with either the sim card slot or the radios maybe the antennas are messed up?

How to turn off LTE on D850(ATT)

Sorry if this is obvious but I'm coming from an HTC and moto x but how can I turn off LTE on the d850? Having network connectivity issues with LTE..
Sent from my LG-D850 using XDA Premium 4 mobile app

montavious said:
Sorry if this is obvious but I'm coming from an HTC and moto x but how can I turn off LTE on the d850? Having network connectivity issues with LTE..
Sent from my LG-D850 using XDA Premium 4 mobile app
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Click to collapse
Type this in the dialer 3845#*855# opinion is in there somewhere

jaythenut said:
Type this in the dialer 3845#*855# opinion is in there somewhere
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Click to collapse
It needs to be 3845#*850# because its the D850 not the 855

My M7 had an option to switch from LTE auot to WCDMA/GSM Auto - no such luck on the G3?
LTE at work is so over saturated I get better speeds on WCDMA but I can't get my phone to switch besides doing the dialer method.

Pilz said:
It needs to be 3845#*850# because its the D850 not the 855
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Click to collapse
Didn't know that lol

montavious said:
Sorry if this is obvious but I'm coming from an HTC and moto x but how can I turn off LTE on the d850? Having network connectivity issues with LTE..
Sent from my LG-D850 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Tasker should be able to do this for you if the magic menu does not. You can even configure Tasker to automatically sense cell phone towers at work and convert to WCDMA, then auto-switch back to LTE once you are no longer in the vicinity of the cell phone towers. Just one of the many, many amazing and useful things Tasker can do for you.

[Q] I have a LG G3 and LTE won't work for Virgin Canada

Hi I bought a LG G3 D855 Yesterday and before I did I called Virgin Mobile Canada and asked if this model would work where I live on their band one of the bands they use is LTE 700 and that is listed on the specs for this model. Can anyone help me PLEASE??

We are on the same boat still finding the solution.
Sent from my LG-D855 using XDA Free mobile app

vincedoggy said:
We are on the same boat still finding the solution.
Sent from my LG-D855 using XDA Free mobile app
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Ok thanks for the reply

humpy8288 said:
Ok thanks for the reply
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Click to collapse
Any updates to this?

I had the same problem.
I suspect that the firmware version for some countries doesn't include LTE.
I have installed "4G LTE Switch" from the market. I activate LTE using this application and it works perfectly fine

tuviya said:
I had the same problem.
I suspect that the firmware version for some countries doesn't include LTE.
I have installed "4G LTE Switch" from the market. I activate LTE using this application and it works perfectly fine
Click to expand...
Click to collapse
I have the same issue before, some suggest go into the LG hidden menu,some just simply delete LTEConfig from system/app (need root) [this method work for me]

LTE Band change

hi guys.
i want change my galalxy s10+ lte band as 1800 is slow on my network. i tried several time *#2683662#, *#0011# service mode opens with these codes but not working further ahead. plz somebody help me.
thx

nadimshahzad said:
hi guys.
i want change my galalxy s10+ lte band as 1800 is slow on my network. i tried several time *#2683662#, *#0011# service mode opens with these codes but not working further ahead. plz somebody help me.
thx
Click to expand...
Click to collapse
You can try using an app like LTE Discovery but normally manually switching the band your phone is connected to requires that your phone be rooted and I'm not sure it's possible on newer versions of Android even if you do have root access.
Resetting your network connection or putting your phone in airplane mode for 5 minutes then turning airplane mode off might result in a better network connection since it will be refreshed.
However, phones are usually programmed to default to the strongest network signal rather than the fastest so you might end up back on the same band even though you are unhappy with the speed.

nadimshahzad said:
hi guys.
i want change my galalxy s10+ lte band as 1800 is slow on my network. i tried several time *#2683662#, *#0011# service mode opens with these codes but not working further ahead. plz somebody help me.
thx
Click to expand...
Click to collapse
Open the Phone dialer and enter ##3282# (##DATA#)
Then click Edit
Then enter the MSL which is 000000 (6 zeros)
Then click LTE
Then click Band Priority
Select the band giving you problems and move it to the bottom of the list.( By assigning it the bottom priority number which in my case is 18.)
I added screenshots with the options circled
Sent from my SM-G975U1 using XDA Labs

jwarrior319 said:
Open the Phone dialer and enter ##3282# (##DATA#)
Then click Edit
Then enter the MSL which is 000000 (6 zeros)
Then click LTE
Then click Band Priority
Select the band giving you problems and move it to the bottom of the list.( By assigning it the bottom priority number which in my case is 18.)
I added screenshots with the options circled
Click to expand...
Click to collapse
Sent from my SM-G975U1 using XDA Labs

Sent from my SM-G975U1 using XDA Labs

jwarrior319 said:
Sent from my SM-G975U1 using XDA Labs
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Those dialer codes I believe are Sprint specific.
Sent from my SM-G975U using Tapatalk

Limeybastard said:
Those dialer codes I believe are Sprint specific.
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Click to collapse
Ive used it ony USC S5 before. Should be a general Samsung code. Might have changed since then though
Sent from my SM-G975U1 using XDA Labs

jwarrior319 said:
Ive used it ony USC S5 before. Should be a general Samsung code. Might have changed since then though
Sent from my SM-G975U1 using XDA Labs
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Click to collapse
Are they cdma like sprint? If so that's why those codes work.[emoji106]
Sent from my SM-G975U using Tapatalk

Limeybastard said:
Are they cdma like sprint? If so that's why those codes work.[emoji106]
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Click to collapse
They're primarily LTE now like everyone else. HDVoice (VOLTE), and RCS via Android Messages app. They're moving to all 4G and eventually 5G whenever there network owner King Street Wireless starts building it.
Switched to Sprint for the faster speeds otherwise they do work good in the middle of nowhere.
Sent from my SM-G975U1 using XDA Labs

Does not work on HK snapdragon version

nothing works for me. anyways thx everyone,

Got any USSD code that works with g975f

Does anyone know how change band in Europe when i use *#0011# i enter in service mode but there is not any LTE settings

blinkt88 said:
Does anyone know how change band in Europe when i use *#0011# i enter in service mode but there is not any LTE settings
Click to expand...
Click to collapse
it is *#2263# dont mess up

nazzier5463 said:
it is *#2263# dont mess up
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Click to collapse
Thats not work for me

nazzier5463 said:
it is *#2263# dont mess up
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Click to collapse
Error: connection problem or invalid MMI code

don't work

does not work this code know anyone else who works?

but how to return it back to normal?

Limeybastard said:
Those dialer codes I believe are Sprint specific.
Sent from my SM-G975U using Tapatalk
Click to expand...
Click to collapse
Yes the code ##3282# definitely only works on Sprint firmware which is a clusterf*ck of CDMA/WiMax/LTE mess. lol
It's one of the last carriers in the US (and MetroPCS) where you have to call them every time you want to move your sim card to another phone, because they have to "update" your MEID/IMEI in their network.
Oh, and that LTE priority band settings only applies to Sprint sim cards, as soon as you change it to another carrier, those settings are not being utilized at all.