Database Users

LTE 4G problem! No automatic switching from 2G/3G to 4G network during data flow

Hello,
I don´t know, maybe I´m blind and could not find similar problem in the forum, or maybe none of you noticed it?
Since weeks, I enjoy the immediate network change 2G > 3G and 4G (just looking hat the Phone, but not used a App thats need data connection)
Today I just go on my work route and listen to internet radio for the first time again, that of course is continuously loading data.
But to my shock, I realized that he not switch from the usual point of H network to the 4G LTE network as usual.
I suspected bad and wanted to exclude the TuneIn app, and i turned on at the same time Google Maps, colesed TuneIn, scolled in Maps so that data flow´s ........ nothing happens, it stays in the H+ network, then i changed to the speed test an check the speed ..... it´s about 5 mbits, so actually still no LTE ( it does not show so well on )
I do this few more minutes and then closed all the apps at the same time. Now he has logged into the LTE network !
What a F..K is that? :-/
That means, if i'm traveling around and an app constantly pulls data, the Note stay only in 2G/3G network, because it changes only to 4G when no data flow is!
WTF!
Could someone test the same, maybe mine is broken or something like that.
Greetings Frank

Gesendet von meinem SM-N9005 mit Tapatalk

I had the exact same problem on my note2 also. Its very annoying. Fortunately for me that only affects me if I am tethered, otherwise I don't have an app that keeps pulling data for too long. I have not found any solution for this issue. It seems that is how the radios are supposed to function to not disable a data connection in the middle of something.

Ehrpd seems to have fixed the whole cutting off of data streams for me when switching back and forth between networks, which is awesome. Unfortunately the note 3 seems to love 3g and hate 4g most days unless I toggle airplane mode manually.

ozaghloul said:
I had the exact same problem on my note2 also.
Click to expand...
Click to collapse
Only with your Note 2, or with Note 3 too?
My Note 2 LTE with Vodafone was horrible, after 2 months I gave it back to the dealer and changed my contract also back. To much trouble all the time. LTE not usable if you are on road / driving.
Now with Note 3 i changed back again to LTE Test driver
It works much better, but the switching problem between 3G and 4G is really bad for me.
Which provider you use?
Gesendet von meinem SM-N9005 mit Tapatalk

buell47 said:
Hello,
I don´t know, maybe I´m blind and could not find similar problem in the forum, or maybe none of you noticed it?
Since weeks, I enjoy the immediate network change 2G > 3G and 4G (just looking hat the Phone, but not used a App thats need data connection)
Today I just go on my work route and listen to internet radio for the first time again, that of course is continuously loading data.
But to my shock, I realized that he not switch from the usual point of H network to the 4G LTE network as usual.
I suspected bad and wanted to exclude the TuneIn app, and i turned on at the same time Google Maps, colesed TuneIn, scolled in Maps so that data flow´s ........ nothing happens, it stays in the H+ network, then i changed to the speed test an check the speed ..... it´s about 5 mbits, so actually still no LTE ( it does not show so well on )
I do this few more minutes and then closed all the apps at the same time. Now he has logged into the LTE network !
What a F..K is that? :-/
That means, if i'm traveling around and an app constantly pulls data, the Note stay only in 2G/3G network, because it changes only to 4G when no data flow is!
WTF!
Could someone test the same, maybe mine is broken or something like that.
Greetings Frank
Click to expand...
Click to collapse
Same problem with my Lenovo A6020A46. It can't auto change 4G/LTE to 3G/2G. Don't know what's wrong with this ROM. Even its the latest Nougat updated on 07 Aug 2017.

dilpreet22g3 said:
Same problem with my Lenovo A6020A46. It can't auto change 4G/LTE to 3G/2G. Don't know what's wrong with this ROM. Even its the latest Nougat updated on 07 Aug 2017.
Click to expand...
Click to collapse
Note 3 rom ??

Its Lenovo Vibe K5 Plus

dilpreet22g3 said:
Its Lenovo Vibe K5 Plus
Click to expand...
Click to collapse
So why post in Note 3 forum ??

I didnt aware about it, is there any rule that I cant post at another post?
I post here just to find any solution.
B'cuz noboday asked it in Lenovo's link.

dilpreet22g3 said:
I didnt aware about it, is there any rule that I cant post at another post?
I post here just to find any solution.
B'cuz noboday asked it in Lenovo's link.
Click to expand...
Click to collapse
But they are two different products and flashing a file from Note 3 forum or altering settings may brick your phone .

JJEgan said:
But they are two different products and flashing a file from Note 3 forum or altering settings may brick your phone .
Click to expand...
Click to collapse
Thanks for assistance..

Data Connection problem (4g) (weird issue)

Hi,
I recently updated my phone to android 4.4.2. (official firmware KOT49.I9505XXUFNB9)
All went well, wifi works like it should, sms is good and calls too.
The problem i have is that my data connection (4g) is acting weird.
When i want to use my own connection on my phone like for Google play, facebook, games, web surfing, speedtest, ...., It all goes slow or does not connect at all.
But when i share this connection through USB and/or wifi hotspot there are no problems. Smooth as butter. No latency issues, timeouts, just as a 4G connection should be.
Thank you for helping and reading :good:

Thx for the 'help'.
Some news :
- Mobile connection goes from 4 bars to 1 if i switch from (WCDMA/GSM) to (LTE/WCDMA/GSM)
- Modem is good (flashed a few times, even other modem versions, but nothing works)
- I have a realy hard time to connect to any data network atm (3g and 4g).
- Modem and firmware version are the same as friends of mine (same country and provider) (Belgium, Mobistar)
- i had 4.2.2 before. Wanted to reinstall the firmware to get it all official again but the firmware was nowhere to be downloaded so i took a 4.4.2 and now everything is messed up.
The realy weird thing is that the data connection was the best at the standard 4.2.2 that was on the phone. Every other rom that i tried had a worse connection. (i tried ALOT of roms).

Dial *#1234# and attach screenshot.

Here you go.
Just attached a 2nd img from Samsung kies. Says (ORX). DOn't know what country that is, and i don't know what country code i sohuld take since belgium doesn't have its own code it seems. (Could this be the problem?)

[Q] Random mobile data connection drop problem with S4

Hi there,
First of all, I ran an extensive search over google and also on XDA forums before posting this.
My S4 (I9500) is experiencing random data connection drop problem for some time now. It starts with no data transfer (upload/download arrows not being active), then connection goes from H+ to H, then to 3G, then drops, back to H and continues until I turn off and on MOBILE DATA from toggle buttons. Then it works normal for some random time, then it happens again. Sometimes an hour, sometimes after 5 minutes.
I found this thread , however trying the workaround there by entering the provided code, I get "Connection problem or invalid MMI code". So that fix is not working either. I tried to go in service mode > debug screen > nas control and change revision to Release 5, but it says NOT SUPPORT. Haven't tried the other releases since I dont want to mess with it. I am also aware that the workaround in the above thread is for S2.
When this happens, it is just mobile data, there is no problem with network signal.
Has anyone else experienced something like that on their S4s?

The method you tried using is probably outdated and for a different phone.
Are you sure it isn't your provider?
Did you try another modem?

Lennyz1988 said:
The method you tried using is probably outdated and for a different phone.
Are you sure it isn't your provider?
Did you try another modem?
Click to expand...
Click to collapse
Nope.. I am working for a service provider company. Other people with iPhones in the same location as I am, are not experiencing the same thing. I heard similar problems with other S4 users, but they dont know any workaround either.
I tried both auto connect and WCDMA only options as well. Doesnt make a difference. My S4 doesnt support LTE, so I only have 3 options, third as GSM only, which I don't think it would be a solution.
Only temporarily solution so far, is turning mobile data off and on, which lasts from 5 minutes to 1-2 hours.
Btw my android version is 4.4.2

Nexus 4 5.1 Stock does reconnect to mobile data after disconnect from wifi network

Hi all,
This is my issue:
I'm 2 hours connected to a wifi network, I leave home or work and my nexus 4 does reconnecting with mobile data.
I have read many posts about this, on any roms, but none gives a clear solution.
I had CM12 and Chroma. The same error. I'm back to Stock Rom [5.1] from Google Factory image [clean] and issue persists.
Can you help me please?
---
Device: Nexus 4
ROM name: Android 5.1 Stock from clean install of factory image
ROM version and base: M9615A-CEFWMAZM-2.0.1701.06
Build number: LMY47O
kernel version and its settings: 3.4.0-franco.kernel [email protected] #217 [Default settings] With stock kernel the issue persist.

gruncho said:
Hi all,
This is my issue:
I'm 2 hours connected to a wifi network, I leave home or work and my nexus 4 does reconnecting with mobile data.
I have read many posts about this, on any roms, but none gives a clear solution.
I had CM12 and Chroma. The same error. I'm back to Stock Rom [5.1] from Google Factory image [clean] and issue persists.
Can you help me please?
---
Device: Nexus 4
ROM name: Android 5.1 Stock from clean install of factory image
ROM version and base: M9615A-CEFWMAZM-2.0.1701.06
Build number: LMY47O
kernel version and its settings: 3.4.0-franco.kernel [email protected] #217 [Default settings] With stock kernel the issue persist.
Click to expand...
Click to collapse
What radio are you running? I was seeing the same issue previously on Chroma, bur haven't seen it since updating to the 33/06 hybrid version.

slaughts said:
What radio are you running? I was seeing the same issue previously on Chroma, bur haven't seen it since updating to the 33/06 hybrid version.
Click to expand...
Click to collapse
I'm in Stock radio now. The chroma version was 2015-04-10. I don't know wich radio version.

gruncho said:
I'm in Stock radio now. The chroma version was 2015-04-10. I don't know wich radio version.
Click to expand...
Click to collapse
Hmmmm. I think it was with the 4-10 version that I had the issue, and it may have been resolved with the 4-14 version. I just installed the 4-17 version, but haven't checked if the issue returned. I would try upgrading Chroma, if that is what you are still running.

slaughts said:
Hmmmm. I think it was with the 4-10 version that I had the issue, and it may have been resolved with the 4-14 version. I just installed the 4-17 version, but haven't checked if the issue returned. I would try upgrading Chroma, if that is what you are still running.
Click to expand...
Click to collapse
I'm going to reinstall all apps in my n4 for now with stock ROM. I installed all updates from 4.2.2 image factory with OTA's up to 5.1, to night I still with wifi connection, if tomorrow the issue persists, I will install chroma again.

I got this problem too. I was running chroma, Cm12 and now euphoria and problem is still here. Full wipe doesn't work. In addition to the problems with reconnection I have also huge problem with msm_hsic_host wakelock and I think both problems are related to each other. I'll try different kernels, maybe it will work.

tomekrk92 said:
I got this problem too. I was running chroma, Cm12 and now euphoria and problem is still here. Full wipe doesn't work. In addition to the problems with reconnection I have also huge problem with msm_hsic_host wakelock and I think both problems are related to each other. I'll try different kernels, maybe it will work.
Click to expand...
Click to collapse
I installed stock kernel, and franco kernel. Same result.

My wife has Installed OTA yesterday and remains in wifi all night, today all works fine in her Nexus 4. In my Nexus 4 don't work.
Differences:
Wife: N4 8GB with simyo carrier
Me: N4 16GB with tuenti carrier
Any Ideas?

It seems that the problem occurs only when when you leave the WiFi area, and the phone loses its range. Its not switching connection. When you are connected to wifi and you try to turn it off manually (quick settings etc), it will switch to mobile data connection without problems.

tomekrk92 said:
It seems that the problem occurs only when when you leave the WiFi area, and the phone loses its range. Its not switching connection. When you are connected to wifi and you try to turn it off manually (quick settings etc), it will switch to mobile data connection without problems.
Click to expand...
Click to collapse
is not it, when I spend three hours on wifi, manual transmission does not work. I put the SIM of another carrier works. Is an error with this SIM and this version of Android.

Hi gruncho,
I have exactly the same problem, also with a Nexus 4 from day 1 after installing 5.1. Mine has been installed OTA, having previously 5.0.1. My carrier is pepephone (now using Movistar) which I think is the same as tuenti, the one you have.
I reconnect without problems by changing between 2G / 3G or by selecting Airplane Mode On / Off.
If anyone knows a less manual solution or something I could try please tell.
Thanks a lot

Same issue here on stock 5.1, only reboot helps. Airplane mode, switching radio off, switching cellular data off and on doesn't help.
Can anyone provide some information how to fix this? Would be very grateful.

I flashed chroma rom 4-21. It is based on Android 5.1.1. The issue is solved on this version. I will use this rom until stock 5.1.1 launch.

Arthur Paendragon said:
Hi gruncho,
I have exactly the same problem, also with a Nexus 4 from day 1 after installing 5.1. Mine has been installed OTA, having previously 5.0.1. My carrier is pepephone (now using Movistar) which I think is the same as tuenti, the one you have.
I reconnect without problems by changing between 2G / 3G or by selecting Airplane Mode On / Off.
If anyone knows a less manual solution or something I could try please tell.
Thanks a lot
Click to expand...
Click to collapse
czito said:
Same issue here on stock 5.1, only reboot helps. Airplane mode, switching radio off, switching cellular data off and on doesn't help.
Can anyone provide some information how to fix this? Would be very grateful.
Click to expand...
Click to collapse
If you have the phone rooted, you can install Trigger and create a task that activate airplane mode and deactivate that in a few seconds when you leave any wifi network. I tried this, but in my case, with an android wear device, the watch disconnects every time I leave my home or job wifi.

Hi,
Keeping my fingers crossed for the problem to be solved for everyone in 5.1.1
I thought about creating a task in Tasker that activated airplane mode and deactivated it in a few seconds later after leaving a wifi, but my experience with Tasker is almost null.
I found an application which seems to be working for me. Its name is WifiFixerFree and what it does is trigger a mobile connection for a few seconds, while still connected to wifi.
You can configure the connection interval. I have it set for every 15 minutes and it doesn't seen to drain a lot of battery. By default it shows a lot of notifications, but you can disable all them in one of the configuration screens.
Cannot yet post external links, but the application is in Google Play so it is easy to find from that name.
I installed the application yesterday and the problem has not repeated itself.

Arthur Paendragon said:
Hi,
Keeping my fingers crossed for the problem to be solved for everyone in 5.1.1
I thought about creating a task in Tasker that activated airplane mode and deactivated it in a few seconds later after leaving a wifi, but my experience with Tasker is almost null.
I found an application which seems to be working for me. Its name is WifiFixerFree and what it does is trigger a mobile connection for a few seconds, while still connected to wifi.
You can configure the connection interval. I have it set for every 15 minutes and it doesn't seen to drain a lot of battery. By default it shows a lot of notifications, but you can disable all them in one of the configuration screens.
Cannot yet post external links, but the application is in Google Play so it is easy to find from that name.
I installed the application yesterday and the problem has not repeated itself.
Click to expand...
Click to collapse
I flashed new chroma 4-25 and issue is here again...
I installed this app, but not works for me. I dont know if I do something bad.
Can you tell me about config this app?

gruncho said:
I flashed new chroma 4-25 and issue is here again...
I installed this app, but not works for me. I dont know if I do something bad.
Can you tell me about config this app?
Click to expand...
Click to collapse
When you enter the app, check "Use auto reconnect" and set a trigger interval of N minutes (I wrote 15).
Press the button "Configure notifications" and uncheck the first option: "Show events in notification bar"
I just did that and since then (yesterday afternoon) I have had no more problems of losing the mobile data connection. During the last weekend and on Friday I had those problems every time I left home / work because the phone lost the wifi and so I lost the mobile data.

Arthur Paendragon said:
When you enter the app, check "Use auto reconnect" and set a trigger interval of N minutes (I wrote 15).
Press the button "Configure notifications" and uncheck the first option: "Show events in notification bar"
I just did that and since then (yesterday afternoon) I have had no more problems of losing the mobile data connection. During the last weekend and on Friday I had those problems every time I left home / work because the phone lost the wifi and so I lost the mobile data.
Click to expand...
Click to collapse
Thanks so much, tomorrow I will try this.
Today after flashing the kernel that come with chroma rom again, seems works. :good::good::good:

Same issue here, but I came from a Nexus 4 5.0.1 with LTE enabled.
The problem ocurrs when changing to data after too many hours in Wi-Fi connection (turning Wi-Fi off or leaving the Wi-Fi area).
I installed OTA Android 5.1, then the problem started.
I tried to install stock Android 5.1 factory image (with full wipe), but the problem still persist.
I executed the nexus-4-lte-enabler-v2.12-2.13-UNINSTALLER.zip thinking it's a related issue, but the problem still persists.
Waiting for Android 5.1.1...
I have Pepephone (Movistar) and I'm still using the manual workaround of turning airplane mode on/off or switching some data network setting to regain data connection.
Can anyone provide some information how to fix this?
Thanks a lot.

urbo83 said:
Same issue here, but I came from a Nexus 4 5.0.1 with LTE enabled.
The problem ocurrs when changing to data after too many hours in Wi-Fi connection (turning Wi-Fi off or leaving the Wi-Fi area).
I installed OTA Android 5.1, then the problem started.
I tried to install stock Android 5.1 factory image (with full wipe), but the problem still persist.
I executed the nexus-4-lte-enabler-v2.12-2.13-UNINSTALLER.zip thinking it's a related issue, but the problem still persists.
Waiting for Android 5.1.1...
I have Pepephone (Movistar) and I'm still using the manual workaround of turning airplane mode on/off or switching some data network setting to regain data connection.
Can anyone provide some information how to fix this?
Thanks a lot.
Click to expand...
Click to collapse
You can install Wifi fixer free from play store. This app has resolved the issue... Until google do something

[Q] Wi-fi issues

About a month ago I noticed that my wi-fi is working weird. It is connected, but I can't use the Internet. Looking at the wi-fi icon I can see that it is sending data to my router, but it is not recieving anything back. I basically have the arrow going up, indicating upload, but no arrow down, indicating download. After a few minutes (or after restarting wi-fi) it goes to normal for some time and then it stops working again. I'm currently on optimised CM12.1, but it doesn't matter which ROM I use. My router works fine. I checked with another phone while my s4's wi-fi wasn't working. I was considering updating baseband and modem, but I wasn't sure which one to use. I'm in Poland and my carrier is Mobile Viking, but they use Play infrastructure (or T-Mobile, if play is unavailable). It isn't anything that would make me change my phone, but it is a bit annoing.

*bump*

killermenpl said:
About a month ago I noticed that my wi-fi is working weird. It is connected, but I can't use the Internet. Looking at the wi-fi icon I can see that it is sending data to my router, but it is not recieving anything back. I basically have the arrow going up, indicating upload, but no arrow down, indicating download. After a few minutes (or after restarting wi-fi) it goes to normal for some time and then it stops working again. I'm currently on optimised CM12.1, but it doesn't matter which ROM I use. My router works fine. I checked with another phone while my s4's wi-fi wasn't working. I was considering updating baseband and modem, but I wasn't sure which one to use. I'm in Poland and my carrier is Mobile Viking, but they use Play infrastructure (or T-Mobile, if play is unavailable). It isn't anything that would make me change my phone, but it is a bit annoing.
Click to expand...
Click to collapse
It's like you said. The only thing you can try is changing your modem.
Do you have a stable connection on other wifi networks?

I have no way of checking other networks (living in a small town with no public wi-fi). Which modem should I use? I'm in Poland nad I bought my S4 in a store (not from any carrier)

killermenpl said:
I have no way of checking other networks (living in a small town with no public wi-fi). Which modem should I use? I'm in Poland nad I bought my S4 in a store (not from any carrier)
Click to expand...
Click to collapse
There is no best modem. You have to try it for yourself. I would suggest taking lollipop modems, but you have to be on a lollipop bootloader for that.

If I am on lollipop rom, does that mean that I have lollipop bootlader? When I bought my phone it was on android 4.4.2

Since lollipop my wifi has been terrible on my i9505 stock rooted. My iOS and windows devices are rock solid but sgs4 has crap connection strength. On previous devices the radio with the upgrade was normally to blame but I'd welcome any suggestions. Does cm12 use the same radio as stock?