Develop Bugs

[Q] Using 3G and 4G at the same time?

Has anyone been looking into running the 3G and 4G radios simultaneously?
Aside from the benefit of having an additional 1-2MB/s, I get very frustrated when I am in the middle of downloading something and I come into a 4G area. Since the phone will always choose 4G over 3G, the connection resets. I would love to have a way to keep the path available to the app using it.
I guess the same problem exists when Wifi is on and the phone connects to wifi while downloading over 3g or 4g.
Can this be done?

I also would love to see a dev pick this up. It could save my marriage...

great idea. Being able to simultaneously use them and multithread downloads would be awesome.

I'd be happy if someone could fix the transition from 3g to 4g and vice versa. Nothing like downloading a file from your phone and then you lose 4g and it loses the entire session and has to be redownloaded.

Thread moved to Q&A.

DssTrainer said:
I'd be happy if someone could fix the transition from 3g to 4g and vice versa. Nothing like downloading a file from your phone and then you lose 4g and it loses the entire session and has to be redownloaded.
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That's going to be unlikely, as 3G and 4G are separate networks operated by separate providers (Clear vs Sprint). That's why I want to keep the 3G connection alive.

sw99 said:
That's going to be unlikely, as 3G and 4G are separate networks operated by separate providers (Clear vs Sprint). That's why I want to keep the 3G connection alive.
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I don't think clear wire is responsible for everyones 4g, just a select group

chandlerw88 said:
I don't think clear wire is responsible for everyones 4g, just a select group
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Click to collapse
I could be wrong but I think sprint just resells clear wimax and calls it america's first 4g network.

sw99 said:
Has anyone been looking into running the 3G and 4G radios simultaneously?
Aside from the benefit of having an additional 1-2MB/s, I get very frustrated when I am in the middle of downloading something and I come into a 4G area. Since the phone will always choose 4G over 3G, the connection resets. I would love to have a way to keep the path available to the app using it.
I guess the same problem exists when Wifi is on and the phone connects to wifi while downloading over 3g or 4g.
Can this be done?
Click to expand...
Click to collapse
When connecting to 4g or Wifi the 3g radio never really shuts off. The data part of the radio goes to sleep while the voice part remains active to send or receive calls or txts.
The 3g data service going to sleep when connected to the others is by design because it is slower than the other two services.
If you don't want the connection to reset turn 4g and wifi off, and only turn them on when you need the greater data speed. (this will also save your battery)
Also another solution is using one of the location based apps that will turn those on and off based off gps location.

Its not that i don't want to use 4g, i wish i could but its not reliable enough. If i have a large download, I'd like it to stay on the reliable network, but i still want to use the fast network.
I agree that the 3g network is still available, I'm hoping there is a way to force a static route over the 3g when needed.
Sent from my PC36100 using XDA App

Couple of things..

First, i would like to know if there is a way to keep the phone's data network ALWAYS on H not on 3G and having them switch back and forth it slows down the internet speed. Is there a setting or something i could change.
Second the notification LED. How can i make it so it can blink quicker.. i dont want to stare at my phone for like 5 seconds to see if its blinking or not...
Third the Swype keyboard ?? is it possible to get that keyboard after i put the Cyanmod ?? That keyboard is way better than the original android one.
I have a Rooted ( S- OFF) G2.
Cyan V6.1.0-RC3.
Thanks!

Fanatico said:
First, i would like to know if there is a way to keep the phone's data network ALWAYS on H not on 3G and having them switch back and forth it slows down the internet speed. Is there a setting or something i could change.
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Click to collapse
Your phone is only switching back to 3G if it loses the H signal. So that's an issue of your reception, not something your phone can control.

When i had the nexus one. It was always on 3G. Then i Rooted it. Changed radio etc etc.. and now it was 3g and switched to H like my g2 now. Before i hacked the G2 there was no 3g. It was either H or Edge. And everytime it's on 3G now that it's hacked it doesn't use it.. it simply just takes a few seconds then goes to H.

I use anycut from market.
New shortcut
Activity
Testing
Click on new shortcut
Select phone information
From there I scroll down to force the phone use wcdma.
I don't know if that'll work. You don't need root or anything.
I hope this helps
Sorry if it dont .
Sent from my T-Mobile G2 using XDA App

Fanatico said:
When i had the nexus one. It was always on 3G. Then i Rooted it. Changed radio etc etc.. and now it was 3g and switched to H like my g2 now. Before i hacked the G2 there was no 3g. It was either H or Edge. And everytime it's on 3G now that it's hacked it doesn't use it.. it simply just takes a few seconds then goes to H.
Click to expand...
Click to collapse
It was using 3G before, you just didn't know it. T-Mobile decided that they were going to have their G2's display H for HSPA+ as well as 3G to give people the illusion of almost always using pseudo-4G

ibemad1 said:
It was using 3G before, you just didn't know it. T-Mobile decided that they were going to have their G2's display H for HSPA+ as well as 3G to give people the illusion of almost always using pseudo-4G
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Click to collapse
The thing is that.. when i do a speed test and my phone is in 3g the speed is around 160-250 kbs then while is testing it switches to HSPA and the speed goes to 2-3mbs.. before I hacked it it was on H. And both of the times I tested in the same place. I understand that tmobile would disguise it.. but its odd that the speed test would switch like that, which didn't happen before. Also 3g and Hspa are two different networks :/
But still thanks for the help.

Is there any way to disable automatic switching between UMTS and HSDPA?

In my apartment my G2 constantly switches back and forth between UMTS (3G) and HSDPA (H). Is there any way to stop this? Both look like they have the same number of bars, but it seems like UMTS is way slower. I also should be in a 4G market, so is there a way to tell if I'm on HSPA+ or not?

I've honestly never even seen the 3g icon on my g2. whenever im in kent, when it drops it drops from h, to E

jenlow said:
I've honestly never even seen the 3g icon on my g2. whenever im in kent, when it drops it drops from h, to E
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I don't think the stock G2 ROM has a specific icon for 3G, if that's what your'e on. It shows H for 3G/HSPA/HSPA+.
I think the original poster is on Cyanogen, where it does show the type of connection a bit more accurately.

I'd also be interested in trying to force an HSPA connection. I don't think Bell has UMTS data so if I'm labeled as on 3G I can make calls and texts but have to wait for it to switch to H when I start using data.

It's a feature of cyanogenmod that it switches to 3G when heavy data is not required and switches to H+ when you need a faster data connection
That is of course if your running CM on your phone...

omarsalmin said:
It's a feature of cyanogenmod that it switches to 3G when heavy data is not required and switches to H+ when you need a faster data connection
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Click to collapse
It's not a "feature" of CyanogenMod. This also happens on the stock ROM but we do not see the H icon, only the 3G one. Cyanogen himself explained this a while back.

Vandam500 said:
It's not a "feature" of CyanogenMod. This also happens on the stock ROM but we do not see the H icon, only the 3G one. Cyanogen himself explained this a while back.
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You mean stock sees only the H icon, not the 3G one XD

Also note that if you're not actively using data, it'll show the 3G symbol (on Cyanogen or Sense ROMs) - as soon as you start a connection, it'll switch to an H. This isn't necessarily because the phone is switching between a 3G and HSPA signal, but rather because 3G is also used to carry voice - so if the phone isn't using HSPA for data, it obviously doesn't need to show it.

Thanks for all of the information, guys!

[Q] How can I stick to HSDPA only not HSPA+ ?

Hi everyone. Just want to ask for your help. How can I can get my data connection stick to HSDPA only. It's so frustrating that when my phone automatically shifts to HSPA+, my data connection will be lost and often times, it won't comes back to HSDPA. I need to manually set to WCDMA only so I can get HSDPA again but a lil later, it goes back to HSPA+ again. Kindly help me on this. I'm also open to installing a new ROM if it needs to. Here's my phone specs:
GT-N7100
JB 4.1.1
N7100DXALIA
Thank you.

I hazard a guess that its there somewhere buried in the service menus you access from the phone keypad
Sent from my Transformer Prime TF201 using Tapatalk 4 Beta

Same question here.. I want to stick to HSDPA and not HSPA+.. HSPA+ service at my area sucks! I notice that whenever my phone sticks at HSDPA, it is more reliable and faster..
Hopefully somebody can give an insight on this.. Thanks!

Hsdpa only
capitansid said:
same question here.. I want to stick to hsdpa and not hspa+.. Hspa+ service at my area sucks! I notice that whenever my phone sticks at hsdpa, it is more reliable and faster..
Hopefully somebody can give an insight on this.. Thanks!
Click to expand...
Click to collapse
try mobile uncle tool and select network setting and other options. It should be done.your device must be rooted.
Let me know if it worked.

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.
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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.
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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.
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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.