Develop Bugs

Use 2G (EDGE) only AT&T?

I will be using the phone on AT&T and I was wondering if the option to turn off 3G is present or use 2G networks. This would be under mobile networks. I ask because I get better coverage on EDGE and have wifi. AT&T has also removed this feature on their Androids for god only knows why.
So can anyone using the phone on AT&T comment whether or not this option is there and if it works correctly? Thanks

MattMJB0188 said:
I will be using the phone on AT&T and I was wondering if the option to turn off 3G is present or use 2G networks. This would be under mobile networks. I ask because I get better coverage on EDGE and have wifi. AT&T has also removed this feature on their Androids for god only knows why.
So can anyone using the phone on AT&T comment whether or not this option is there and if it works correctly? Thanks
Click to expand...
Click to collapse
Of course. Here's the standard mobile network screen:
But when you're on WiFi it doesn't matter. It disconnects mobile data anyways.

Thanks. With my iPhone 4 I was able to turn off 3G and be on Wifi and have a very strong signal versus leaving 3G while being on Wifi and having 1 bar.

MattMJB0188 said:
Thanks. With my iPhone 4 I was able to turn off 3G and be on Wifi and have a very strong signal versus leaving 3G while being on Wifi and having 1 bar.
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Click to collapse
You can manually drop to "2G only" when you turn on WiFi if you want, but it automatically disconnects data when you connect WiFi. All phones hold onto signals to different extents. if you find your phone always on the edge of a 3G/2G handoff, the "2G only" switch will do it for you.
You can always grab a widget to do so as well. Most of the popular ones (I use Widgetsoid) offers a 2G only/2G+3G/3G only toggle type.

[Q] Long delay when dialing out

Is anyone experiencing a long delay when dialing out? I am on stock rooted ROM. One of my buddies is having the same issue also. The delay is about 5-10 seconds. I don't have this issue when I use the same SIM card with my old iPhone.
I live in Michigan

memee4eva said:
Is anyone experiencing a long delay when dialing out? I am on stock rooted ROM. One of my buddies is having the same issue also. The delay is about 5-10 seconds. I don't have this issue when I use the same SIM card with my old iPhone.
I live in Michigan
Click to expand...
Click to collapse
I have this with my Note II, and so did my Note I and my Streak.

I have seen this on a few of my friends devices. Test this for me
Make a phone call and watch your data icon. It will go from 4g LTE to 4g then disappear the the call will go through.
Then call your phone and watch as the data icon goes from 4g to nothing then ring.
It seems to b a problem with a few select phones. Not sure if its a software or hardware issue. But I have reported the issue to at&t and samsung . Due to the fact that I have seen it on 4 phones
Sent from my SCH-I605 using xda premium

BIGfin86 said:
I have seen this on a few of my friends devices. Test this for me
Make a phone call and watch your data icon. It will go from 4g LTE to 4g then disappear the the call will go through.
Then call your phone and watch as the data icon goes from 4g to nothing then ring.
It seems to b a problem with a few select phones. Not sure if its a software or hardware issue. But I have reported the issue to at&t and samsung . Due to the fact that I have seen it on 4 phones
Sent from my SCH-I605 using xda premium
Click to expand...
Click to collapse
This is exactly what I have noticed!!!! I am also not sure if it's a software or hardware issue.

Seems normal to me. Voice over LTE is not (yet) enabled/available/supported. For voice, the radio has to switch from LTE to UMTS, and then establish a connection to the new network.

normaaaan said:
Seems normal to me. Voice over LTE is not (yet) enabled/available/supported. For voice, the radio has to switch from LTE to UMTS, and then establish a connection to the new network.
Click to expand...
Click to collapse
The issue is a total loss of data. So no talk and surf
Sent from my SCH-I605 using xda premium

Just a quick check - is data set to be LTE-only? You generally can't have simultaneous voice and LTE data.
You could try turning off LTE data and forcing WCDMA/GSM data. That might help.
Also, the signal has to be very strong for simultaneous voice and data. When there is low signal strength, the carrier may have elected to suppress data in favour of voice.
You could also experiment with other baseband firmware. That has made a difference on some of my other phones. The configuration of the carrier's towers plays a big role. However, in my limited experience, signal strength has been the key factor.
Good luck!

I have had two phones with the stock builds and base bands next to each other with all the same settings and one works fine the other doesn't.
The weird thing on top of it is that 50% of the time when making outgoing calls it fails. And when people call they receive the message that the line is no longer in service
Sent from my SCH-I605 using xda premium

Stab in the dark: That sounds like a loose antenna connection - if it happens to the same phone all the time (that was the cause of a similar issue on my old Moto Milestone); or a carrier issue - if it happens on the same tower. (Just because two phones are side by side doesn't mean that they are connected to the same tower.)
The code for radio info is *#0011# http://forum.xda-developers.com/showthread.php?t=1802028 (I know we're not talking about fast dormancy - well, we are talking about radio state switching for the OP - but that thread and Erica's two XDA videos on fast dormancy have lots of good info on radios and data.)
I'm all out of ideas now ...

Better cell network mode management

The tmobile service in my area sucks and it will stay on 4g lte even when I have a very bad connection which drops calls and gives me really bad speeds. Is there an app that will automatically switch lte/gsm/wcdma when the signal is very low so I wont drop calls, waste battery and give me poor dl speeds? Or is there anything else that I can do? Maybe with tasker or a tweak. I would appreciate any type of solution. Thank you.

Is there any thing I can do about this?

On stock Rom go to settings>more networks>mobile networks>network mode.
Pick the one you want. Probably gsm/wcdma auto connect.

dragon-son said:
On stock Rom go to settings>more networks>mobile networks>network mode.
Pick the one you want. Probably gsm/wcdma auto connect.
Click to expand...
Click to collapse
Thank you for your reply. I already know about that option. I still want to have access to lte when I have a decent connection. Is there an app or a tasker configuration that if the signal is below a certain level it will switch networks? Also, which network it used to make phone calls? I thought all of them but my friend said phone calls are made on 2g. Thank you!

coolpepp said:
Thank you for your reply. I already know about that option. I still want to have access to lte when I have a decent connection. Is there an app or a tasker configuration that if the signal is below a certain level it will switch networks? Also, which network it used to make phone calls? I thought all of them but my friend said phone calls are made on 2g. Thank you!
Click to expand...
Click to collapse
+1
Sent From My GSIII

Is there any solution for this? Also when you are connected to lte are you still making phone calls through 2g? Thanks.

Is this a problem near your home? Can you use wifi calling to help fix the dropped calls? Not sure about how to get the phone to switch from LTE to 4G when the connection is poor. I do it manually right now because my LTE has been acting a little wonky lately where it won't even connect to LTE and leaves my phone in network limbo unless I force it to use 4G. I'd like to see a solution to the LTE - 4G switching too.

Last i recall, there is no tasker or app capable of doing such a thing like switching network preferences. It goes against "policy" per say. But your friend is right about calls being made through 2g. That is how you are able to use data whilst on a phone call. The data is being used through 3G and up, while the call is being used on 2G. now i am not sure about T-Mobile's "HD Voice" calling, that is prolly LTE.
I myself have looked through every single API google has trying to write my own app to change the network preferences and could not find it. There may be an option through root though. Havent found it yet.

Correct.
Calls - 2G
Data - 3G+
TM HD - New LTE Network.
elesbb said:
Last i recall, there is no tasker or app capable of doing such a thing like switching network preferences. It goes against "policy" per say. But your friend is right about calls being made through 2g. That is how you are able to use data whilst on a phone call. The data is being used through 3G and up, while the call is being used on 2G. now i am not sure about T-Mobile's "HD Voice" calling, that is prolly LTE.
I myself have looked through every single API google has trying to write my own app to change the network preferences and could not find it. There may be an option through root though. Havent found it yet.
Click to expand...
Click to collapse

Radio problems.

So, i'm in the UK with my nice shiny OP3 (on Three UK) - I am rooted with twrp, but same applies on stock.
The radio in this phone seems to prefer H+/3G to 4G, even though where i live, i have full bars on both. My nexus 5 always prefered 4G, and the OP3 is set to prefer 4G but 90% of the time drops to 3G/H+
Another interesting thing, if i use the testing menu to force LTE only, even if it's on 4G already, completely stops any signal getting through for a number of minutes until it decides to connect sometime later. I have full LTE signal in my room too.
Is this a radio problem that could be solved in the future with a software update? not seen anyone else with this issue!
FYI, when it is on 4G, it's super fast and stays connected until a reboot, where the whole process starts again
Norman

manor7777 said:
So, i'm in the UK with my nice shiny OP3 (on Three UK) - I am rooted with twrp, but same applies on stock.
The radio in this phone seems to prefer H+/3G to 4G, even though where i live, i have full bars on both. My nexus 5 always prefered 4G, and the OP3 is set to prefer 4G but 90% of the time drops to 3G/H+
Another interesting thing, if i use the testing menu to force LTE only, even if it's on 4G already, completely stops any signal getting through for a number of minutes until it decides to connect sometime later. I have full LTE signal in my room too.
Is this a radio problem that could be solved in the future with a software update? not seen anyone else with this issue!
FYI, when it is on 4G, it's super fast and stays connected until a reboot, where the whole process starts again
Norman
Click to expand...
Click to collapse
Check your APN.

papi92 said:
Check your APN.
Click to expand...
Click to collapse
APN Is exactly the same as my nexus 5, and i even added a new one. Same deal.
I'm an IT Professional, just not a developer. i've done everything i can think of. 4G does work, but only when it wants to. My phone is also registered with my carrier correctly.

Bump on this anyone?

I am having a similar problem I guess. I have the dual sims installed and one sim randomly shows no range. Further, the network preference is not the way it is supposed to be - Chose it as 4G and if 4G is not detected it falls back to 2G.

Same issue forcing lte fixes lte for me but then no calls come through
Sent from my OnePlus 3

dkotoric said:
Same issue forcing lte fixes lte for me but then no calls come through
Sent from my OnePlus 3
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Click to collapse
Same as you. Anyone know how to fix the network priority to lock onto LTE first and then drop to 3G for calls?
Sent from my unknown using XDA-Developers mobile app

cdkg said:
Same as you. Anyone know how to fix the network priority to lock onto LTE first and then drop to 3G for calls?
Click to expand...
Click to collapse
I did notice when I do have LTE it's fine but it won't re lock onto LTE after a call on Three where it has to drop to H

I'm having a problem where the phone catches 4G+ "carrier aggregation" and it'll jump from to 4g+ to 4g and back to 4g+ really fast like almost flashing . And speed test are showing low numbers. T-Mobile USA.
Sent from my ONEPLUS A3000 using XDA-Developers mobile app

Same here. Sometimes it just locked to 3g/h+ in a strong LTE area for no reason. I'm on stock oos with one sim and 1 apn. Sometimes I need to reboot the phone to get LTE back.
Sent from my Pixel C using XDA-Developers mobile app

I first put my sim into slot 1 when I first got the device, I was having the exact same issue. I found that the data priority sim, or if you only have one sim needs to be in sim slot 2.

mrnovanova said:
Same here. Sometimes it just locked to 3g/h+ in a strong LTE area for no reason. I'm on stock oos with one sim and 1 apn. Sometimes I need to reboot the phone to get LTE back.
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Click to collapse
Yes exactly. And even then it doesn't show up straight away despite 3/4 and usually full signal. Sometimes just putting it into standby mode and leaving it 20mins can sort it... Until I get another call lol. Wondering if it's just a software or firmware issue that could be patched. Lte is fine it's just never preferred despite the options being set

papi92 said:
Check your APN.
Click to expand...
Click to collapse
APN is not the universal response. Here he faces a problem of inaccurate network type choice, APN is only to have acces to internet through the provider's proxies. It's a radio problem clearly, the baseband is probably to be corrected by OnePlus.
It's really a strange thing to see those network type issues, MMS issues are still present after all those years.

Striatum_bdr said:
APN is not the universal response. Here he faces a problem of inaccurate network type choice, APN is only to have acces to internet through the provider's proxies. It's a radio problem clearly, the baseband is probably to be corrected by OnePlus.
It's really a strange thing to see those network type issues, MMS issues are still present after all those years.
Click to expand...
Click to collapse
This is what I thought. It's probably an easy fix for oneplus or rom developers. Custom radios are nothing new. Let's hope so anyway!

This is happening to me as well. I'm on three in a strong 4G area but it always prefers 3G it's so annoying hope it gets fixed soon.
Sent from my ONEPLUS A3003 using Tapatalk

same problem here.
i tested op3 with 3 different carriers
on two of them - lte no problem, instant connect...
on third sim - slow connection, frequent out of range. almost no lte.
tested third sim on iphone - instant lte connect, no problem.
seems like a incompatibility with an selected cellular operators.

DrSun said:
same problem here.
i tested op3 with 3 different carriers
on two of them - lte no problem, instant connect...
on third sim - slow connection, frequent out of range. almost no lte.
tested third sim on iphone - instant lte connect, no problem.
seems like a incompatibility with an selected cellular operators.
Click to expand...
Click to collapse
Could be but I'm doubting it. OP3 Has full support at least for my carrier on both bands they use (3 & 20).. Never know, the devs here will figure it out if oneplus don't

So i am in Germany right now using Vodafone with LTE enabled and enough datavolume but i am surfing with 2g speed. What is this? Checked the apn and everything is fine. On my S5 i am flying through the net ...
---------- Post added at 03:00 PM ---------- Previous post was at 02:58 PM ----------
erdock said:
So i am in Germany right now using Vodafone with LTE enabled and enough datavolume but i am surfing with 2g speed. What is this? Checked the apn and everything is fine. On my S5 i am flying through the net ...
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Click to collapse
Even loading google is a struggle

Same issue here, have never got it to say 'LTE' for me since I got the phone, best it does is 4G whilst my Galaxy S5 would happily pickup LTE. Just wondering what UK users have there preferred network type set to? Mine is on GSM/WCDMA/LTE I assume that is right as that is what it went to itself and have tried LTE or LTE/WCDMA too.

RetroFlux said:
Same issue here, have never got it to say 'LTE' for me since I got the phone, best it does is 4G whilst my Galaxy S5 would happily pickup LTE. Just wondering what UK users have there preferred network type set to? Mine is on GSM/WCDMA/LTE I assume that is right as that is what it went to itself and have tried LTE or LTE/WCDMA too.
Click to expand...
Click to collapse
Sorry, i mean my OP3 shows LTE in statusbar but it runs with 2G speed

How to exclude 2G connections on the Exynos version?

Hi,
In the network menù of my unlocked no brand S9+ with Exynos SOC I can't choose to have only 4G and 3G like in LG devices, do You know if there is some secret code or something like that?
My goal is to have the phone only connect to 3G and 4G networks, and never connect to 2G network
Thanks a lot.

I didn't have that option on my S7 and I don't have it either on my S9. It has only 2 options with "only": 3G and 2G.
But I don't miss that, as my goal is having my phone connected to the best available network. For this "LTE/3G/2G (auto connect)" setting works great.

raducanmihai said:
I didn't have that option on my S7 and I don't have it either on my S9. It has only 2 options with "only": 3G and 2G.
But I don't miss that, as my goal is having my phone connected to the best available network. For this "LTE/3G/2G (auto connect)" setting works great.
Click to expand...
Click to collapse
The problem is that once the phone switch to 2G, it will not be possible to return to 3G or 4G unless you close the call, this means worse voice quality and no data connection until you're stuck in 2G.

There is an app called 4G Switcher that I use to set it to UMTS/LTE only. Try it.

SydneyBlue120d said:
The problem is that once the phone switch to 2G, it will not be possible to return to 3G or 4G unless you close the call, this means worse voice quality and no data connection until you're stuck in 2G.
Click to expand...
Click to collapse
You are technically correct, but the chance of that happening - starting a voice call while only in 2G coverage, moving to a 3G/4G area while still speaking and needing data connection while speaking - is a very long shot. Not to mention that if you force 4G/3G and there is only 2G coverage, then you can't make a voice call at all. So between a lesser quality one and not being able to do it, I'll choose the former.
But my opinions are based on my experience, my destinations and the 4G/3G coverage in my country (Romania). There are extremely rare circumstances where there is no 4G/3G coverage here.

I'm using Vodafone Italy, one of the best mobile operator here in Italy, and when I make a long call, i mean longer than 15 minutes, sooner or later it always got stuck on 2G.
So it is a very annoying behavior, and I can't understand why on a LG phone I can exclude 2G and with a Galaxy S9+ I can't.

Any update on this? It is very annoying e.g. when you're calling inside a car to always go and stay stuck in 2G until the end of the conversation, without data connection working

I want to know this too! I always have better 4G reception than 2G but sometimes it gets stuck to 2G.

up, any update about this?

Luish77 said:
There is an app called 4G Switcher that I use to set it to UMTS/LTE only. Try it.
Click to expand...
Click to collapse
What configuration do I need to choose using the app to exlude 2G?

SydneyBlue120d said:
What configuration do I need to choose using the app to exlude 2G?
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Click to collapse
Yea this app works great. But after January 1st I do believe it will not matter. Since they are doing away with anything lower than 4g
Sent from my SM-G960U using Tapatalk

blackops11252 said:
Yea this app works great. But after January 1st I do believe it will not matter. Since they are doing away with anything lower than 4g
Sent from my SM-G960U using Tapatalk
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Click to collapse
I can confirm that even now, if I start a call under 4G and I'm driving, soon it will switch to 2G, no matter what I do, and I'm using Vodafone Italy, one of the best network here.