Samsung A8 call-drop issue - Galaxy A3, A5, A7, A8, A9 Q&A, Help & Troubleshoot

Dear all,
I and my friend bought Samsung A8 a couple of days ago. We both are facing same call-drop issue.
We use BSNL prepaid SIMs and with default setting, whenever we change the mobile tower while talking, there is a squeaking digital noise and then the call drops. What I mean by default setting is, if you go Settings > Mobile Networks > Network Mode (BSNL in my case) > LTE/WCDMA/GSM (auto connecct).
I have tried many sorts of tweaks over this. First, I replaced my SIM card with a new one for no result.
Then, I found one curious behaviour. That is, if you put Mobile Networks to anything that has auto connect, you get this squeaking sound and call-drop. If you put the mode to *-only mode, the problem is no more! as far as I think this whole issue started after I have applied some update (don't know which, but now it is running the latest update and problem persists). Also, I have also tried complete reset to no avail. My phone has no apps other than the default ones.
I have been fed up with this issue to the core and thinking of changing the phone. Will you help me solve this issue?
Thanks,
Vivek

Call drop on Samsung Galaxy A8
Hi Vivek,
I have a exactly similar experience with A8. In the auto mode there can be 3G to 2g Ho and calls drop. But in locked mode of any of 2g or 3G , no problem.
Btw, which android version you are running?
Did it start after you installed any app?
Did you try to downgrade the firmware if you have the latest one?
Rgds, Hasnat

vivekanandpv said:
Dear all,
I and my friend bought Samsung A8 a couple of days ago. We both are facing same call-drop issue.
We use BSNL prepaid SIMs and with default setting, whenever we change the mobile tower while talking, there is a squeaking digital noise and then the call drops. What I mean by default setting is, if you go Settings > Mobile Networks > Network Mode (BSNL in my case) > LTE/WCDMA/GSM (auto connecct).
I have tried many sorts of tweaks over this. First, I replaced my SIM card with a new one for no result.
Then, I found one curious behaviour. That is, if you put Mobile Networks to anything that has auto connect, you get this squeaking sound and call-drop. If you put the mode to *-only mode, the problem is no more! as far as I think this whole issue started after I have applied some update (don't know which, but now it is running the latest update and problem persists). Also, I have also tried complete reset to no avail. My phone has no apps other than the default ones.
I have been fed up with this issue to the core and thinking of changing the phone. Will you help me solve this issue?
Thanks,
Vivek
Click to expand...
Click to collapse
weird i have latest firmware and i don't have this problem. which variant do you have?

Vivacity said:
weird i have latest firmware and i don't have this problem. which variant do you have?
Click to expand...
Click to collapse
Which android version and firmware your device is running on? Can you please share?

Hasnat.bd said:
Which android version and firmware your device is running on? Can you please share?
Click to expand...
Click to collapse
Bro thanks to answer my question before asking a new one. Dont answer question by question.
Android version 5.1.1
A800IXXU1APC2

Vivacity said:
Bro thanks to answer my question before asking a new one. Dont answer question by question.
Android version 5.1.1
A800IXXU1APC2
Click to expand...
Click to collapse
Hi,
This is a problem in my friends device and he is out of town now. so I couldn't share.
Just to further confirm, you haven't faced this problem even when you are in auto connect mode, right? This is bit of strange.

Hasnat.bd said:
Hi,
This is a problem in my friends device and he is out of town now. so I couldn't share.
Just to further confirm, you haven't faced this problem even when you are in auto connect mode, right? This is bit of strange.
Click to expand...
Click to collapse
yes i'm always in auto connect mode.

vivekanandpv said:
Dear all,
I and my friend bought Samsung A8 a couple of days ago. We both are facing same call-drop issue.
We use BSNL prepaid SIMs and with default setting, whenever we change the mobile tower while talking, there is a squeaking digital noise and then the call drops. What I mean by default setting is, if you go Settings > Mobile Networks > Network Mode (BSNL in my case) > LTE/WCDMA/GSM (auto connecct).
I have tried many sorts of tweaks over this. First, I replaced my SIM card with a new one for no result.
Then, I found one curious behaviour. That is, if you put Mobile Networks to anything that has auto connect, you get this squeaking sound and call-drop. If you put the mode to *-only mode, the problem is no more! as far as I think this whole issue started after I have applied some update (don't know which, but now it is running the latest update and problem persists). Also, I have also tried complete reset to no avail. My phone has no apps other than the default ones.
I have been fed up with this issue to the core and thinking of changing the phone. Will you help me solve this issue?
Thanks,
Vivek
Click to expand...
Click to collapse
Hi Vivek,
Can you please share your device android version and firmware version?

Related

Gsm signal issue

I have my sgs for 2 weeks now. GSM disconnects around every 2 days.
At service mode (*#*#4636#*#* - Phone information) i can see this repport:
GSM disconnects:
====DATA=====
State: inactive
disconnected with last try
at 00:59
fail because No Error
The question is: why does this happen?
Is this an android issue or a hardware problem?
Any pointers?
Thanks in advance
.
do you ever enter a building, subway, or some other location where the GSM becomes poor?
AllGamer said:
do you ever enter a building, subway, or some other location where the GSM becomes poor?
Click to expand...
Click to collapse
That's not the problem.
Gsm disconnects just like that ,at home for instance. And when I notice that and try to reconnect (settings- wireless networks- mobile networks - networks operators) it doesnt find ANY of them.
Then I restart the phone and gsm network is back.
If I dont notice disconnection in time (so I can restart phone, people just cannot reach me....quite frustrating...
i see what you mean now.
yes, i've noticed that on mine too, but.... that's because i was fooling around with some new Apps Widgets settings i was testing to control the radio and data to save battery.
Did you install any new Apps recently that might cause that?
betoNL said:
That's not the problem.
Gsm disconnects just like that ,at home for instance. And when I notice that and try to reconnect (settings- wireless networks- mobile networks - networks operators) it doesnt find ANY of them.
Then I restart the phone and gsm network is back.
If I dont notice disconnection in time (so I can restart phone, people just cannot reach me....quite frustrating...
Click to expand...
Click to collapse
do you have an old sim card? i had a 3g sim card that wasnt even 1 years old and replacing it fixed connectivity issues on my nexus 1 and i had a similar experience with my old htc magic
AllGamer said:
i see what you mean now.
yes, i've noticed that on mine too, but.... that's because i was fooling around with some new Apps Widgets settings i was testing to control the radio and data to save battery.
Did you install any new Apps recently that might cause that?
Click to expand...
Click to collapse
Well I installed all kind of apps. but i have the feeling this problem was happening even before that.
And I dont need widgets to control data ( I think) because I set the sgs to use 2g networks only and I dont have apn configured( section is empty. Internet connec. only via wifi.
hondaguy said:
do you have an old sim card? i had a 3g sim card that wasnt even 1 years old and replacing it fixed connectivity issues on my nexus 1 and i had a similar experience with my old htc magic
Click to expand...
Click to collapse
Well, my sim card is VERY old (2002) and the carrier (Telfort) is roaming into another carrier's network (Kpn) with no extra costs of course like real roaming, but still roaming (I get the little "R" next to the signal strenght bars)
Anyway this never happened with the Nokia 5800xm running Symbian OS and using the same sim card...
Starting to get pissed of with Android...
With Symbian you hack or root or tweak because you want to, not because you NEED to like with Android....
And then you prob. get side effects...
Thank you guys for your time
I would get a new sim card if I were you. Every android phone that I have had seems to work better with a good 3g sim.
Get a new SIM card.
same problem, different phone
i have the same problem on kaiser with flashed android on it.
sim is 2 years old, and now suddenly this happened, tried differents sim cards, but the problem persists. My guess is, it is a software problem.
Maybe i will report when I flash original WM6.1 rom onto it, if you are interested in the result
btw, this happened about two days ago and because of this im buying galaxy s so i hope the problem will be gone with new phone
did you guys see this other topic?
http://forum.xda-developers.com/showthread.php?t=769582
anyone able to reproduce this issue?
Maranevim said:
i have the same problem on kaiser with flashed android on it.
sim is 2 years old, and now suddenly this happened, tried differents sim cards, but the problem persists. My guess is, it is a software problem.
Maybe i will report when I flash original WM6.1 rom onto it, if you are interested in the result
btw, this happened about two days ago and because of this im buying galaxy s so i hope the problem will be gone with new phone
Click to expand...
Click to collapse
Why you think the problem will be gone if it's still android and I also got it with my sgs? Or are you counting on Froyo?
Yesterday I upgraded my sgs to froyo jpc with kies. I am new with Android but the post of Aery was so clear that i didnt resist: http://forum.xda-developers.com/showthread.php?t=769400&highlight=froyo+upgrade
I did get stuck on reboot but could get out of it after applying a cache/data/factory reset on recovery mode (3 buttons)
Now I am being carefull with the 3rd party apps., and so far so good, no gsm disconnections .
Froyo is of course better that eclair but Android is still disappointing to me.
You flashed Android onto a WM device (i'm impressed); could you not teach me how to flash Symbian onto my SGS?
Voice dialing (over bluetooth or not) and proper connectivity control (network, data, gps and bluetooth) of android is years behind Symbian; and such a well written, light OS, it will just fly on a high-end hardware like the sgs; but that is an issue for another thread.http://forum.xda-developers.com/showthread.php?p=7938430#post7938430
Pls keep reporting..
AllGamer said:
did you guys see this other topic?
http://forum.xda-developers.com/showthread.php?t=769582
anyone able to reproduce this issue?
Click to expand...
Click to collapse
I think indeed that's not the same issue. My problem is that the radio signal get turned off during inactivity. That's why I got connection back after reboot: radio signal gets turned on again; later I learned how to turn radio signal back on without rebooting, but that is just a remedy , no real solution.
Try to upgrade to froyo, make a factory reset and be carefull with 3rd party apps. With froyo you will need less interfering tools anyway
I dont thing that my old sim card is the problem, but i'll try to replace it anyway...but first things first
Btw dou you have 3g turned on? Cause I never...
Another mistery: When I have 3G on I see those bars (signal strenght) dancing and that "death grip" thing happening:http://www.youtube.com/watch?v=LROTHrTR92k
But when I have it on 2G only the bars doesnt move even if I strangle it with both hands.....
Please repport later how it's going...
I had the same issue, i sent mine back and got my money back, i had also tried with different simcards and resets and nothing worked.. so hopefully my new galaxy wont have this problem. Its strange that these problems are so rare though.. But as long i get it going ill be a happy man.
fourth day with JPC ( and 4 days after a factory reset) so far so good no disconnections . I think problem is gone...
Today just to be safe, I got a new sim card....the other one was too old anyway(8 years)
i have the same issue, for a few days i can't get 3g. i'm seriously wondering about sending back my sgs. i've ttried all the settings, changed my sim..nothing...begin to think it was a fullish thing to change Desire to SGS..
alpachiles said:
i have the same issue, for a few days i can't get 3g. i'm seriously wondering about sending back my sgs. i've ttried all the settings, changed my sim..nothing...begin to think it was a fullish thing to change Desire to SGS..
Click to expand...
Click to collapse
Well... this is not the same issue.
I have 3G (WCDMA) disabled. I only use 2G (GSM) and WIFI for data/internet connection.
I Dont have a data account, I dont need it therefore I disabled 3G in order to save battery.
If you do want to use 3G, just go to settings - wireless and network - mobile network settings - network mode and set auto-mode (GSM/WCDMA or 3G/2G)
If it doesn't work, apply a data/factory reset and try again.
And if it doesnt work, it's probably hardware related and you should return it or send it for repair.
My issue is more complicated; next to the fact that I dont want to use 3g, my carrier is roaming to another network and probably Android OS or the firmware cannot handle it properly.
Android is still premature and the "Samsung - Android integration" seems to need a lot of development as well.
It is just a shame that basic functions like proper connectivity control just wont cut it. And Google is not doing any good either.
And dont let me get started on the voice recognition issue......
Hardwarewise, the SGS is superior that htc desire.....I wonder how it would perform if running Symbian^3 OS or Meego.....
I get a great sound quality from the stock music player just by mixing the equalizer and using the music clarity effect...just great...better than any other device I tried.
And the OFFLINE Gps experience is just great as well: the combination SGS - Motonav - External Bluetooth gps device is working like a charm.
I wouldn't change my sgs just yet......
yesterday i was swiching sims to determine if is a sim fault and suddenly i have my 3g/h back. happy owner again. i've tried all to do this, from firmware upgrade to servide mode settings..i don't know why but i'm ok again...
betoNL said:
Well... this is not the same issue.
I have 3G (WCDMA) disabled. I only use 2G (GSM) and WIFI for data/internet connection.
I Dont have a data account, I dont need it therefore I disabled 3G in order to save battery.
If you do want to use 3G, just go to settings - wireless and network - mobile network settings - network mode and set auto-mode (GSM/WCDMA or 3G/2G)
If it doesn't work, apply a data/factory reset and try again.
And if it doesnt work, it's probably hardware related and you should return it or send it for repair.
My issue is more complicated; next to the fact that I dont want to use 3g, my carrier is roaming to another network and probably Android OS or the firmware cannot handle it properly.
Android is still premature and the "Samsung - Android integration" seems to need a lot of development as well.
It is just a shame that basic functions like proper connectivity control just wont cut it. And Google is not doing any good either.
And dont let me get started on the voice recognition issue......
Hardwarewise, the SGS is superior that htc desire.....I wonder how it would perform if running Symbian^3 OS or Meego.....
I get a great sound quality from the stock music player just by mixing the equalizer and using the music clarity effect...just great...better than any other device I tried.
And the OFFLINE Gps experience is just great as well: the combination SGS - Motonav - External Bluetooth gps device is working like a charm.
I wouldn't change my sgs just yet......
Click to expand...
Click to collapse
Hello,
I know its been a long time since you wrote this thread but I just came by it!
I have the exact same problem with you (I had it since August) even now with the official froyo. I tried factory reset and no new apps (that could cause the problem) but it still disconnects randomly in GSM mode. However, when I have it on auto (gsm and wcdma) I have no issues. I just disconnect data from the power button in froyo. I am wondering if you ever found a solution..
Chryssa
Well, I am subscribed to this topic so I saw your post.
Good and bad news:
First the bad one: No solution yet, it keeps disconnecting IF I stay on "gsm only".
And the good (or a little better) news:
I noticed that on sgs, using "gsm only" or "gsm/wcdma (auto mode) makes no difference on battery consumption....
By the way, this is a Samsung issue, not really an Android one.
On a HTC Desire HD, you can use "gsm only" mode with no problems...
Thank you for your answer!
I noticed that about the battery too. So not too bad, I just have to keep it on auto mode then..
Same issue
Im having the same issue but in a optimus t the worst part is that i cant get service at all.. when i press change network preferred it wont change and when i try to press on turn on radio it wont work either....

[Q] Help with data and GSM losses of connection

I own a Verizon Motorola Razr M, bought in ebay to an US seller. I am in Spain and I use Movistar SIM card
The phone came with stock JB 4.1.2, and therefore I could not unlock the bootloader.
I started using it, but it had a problem that I am not been able to solve so far: after some hours of use, with no problems with GSM and data connections, it suddenly looses both connections, although the signals on the status bar still appear. I take care that signals have gone when I take the phone to make a call or surf the web.
I have tried the following procedures:
Change the net settings to GSM/UMTS
I rooted the phone with motochopper 1.1.2 exploit
I installed Safestrap 3.12 in order to be able to install other available locked compatible roms.
I tried these roms, following this thread here in XDA: Clean ROM 1.0. Clean ROM 1.1, Barebone New Base, Stock Deodexed.SDswap-Locked & UnLocked BLs-xt907-9.8.1Q-94-1, but no luck. This last one uses the last radio, but no way.
I also installed the [PATCH][GUIDE] Patch to fully enable GSM on Verizon CDMA Android phones. I could only install it on Clean ROM 1.1 however. It has been impossible to install it on the other ROMS. In any case, no luck again with the patch installed. Here I had a big problem because as I still had these problems, I got into *#*#4636#*#* in the dialer, and touched the band selection option: suddenly, the net showed no signal more and I was unable to make it work again: I finally solved this by installing the stock firmware from here with RSD lite.
No way. I still have this problem and I can not use the phone. I have also tried with another SIM card, but the problem remains. It is a shame because when the connection works, the phone runs very well.
Any help would be very appreciated
More details
errotaxar said:
I own a Verizon Motorola Razr M, bought in ebay to an US seller. I am in Spain and I use Movistar SIM card
The phone came with stock JB 4.1.2, and therefore I could not unlock the bootloader.
I started using it, but it had a problem that I am not been able to solve so far: after some hours of use, with no problems with GSM and data connections, it suddenly looses both connections, although the signals on the status bar still appear. I take care that signals have gone when I take the phone to make a call or surf the web.
I have tried the following procedures:
Change the net settings to GSM/UMTS
I rooted the phone with motochopper 1.1.2 exploit
I installed Safestrap 3.12 in order to be able to install other available locked compatible roms.
I tried these roms, following this thread here in XDA: Clean ROM 1.0. Clean ROM 1.1, Barebone New Base, Stock Deodexed.SDswap-Locked & UnLocked BLs-xt907-9.8.1Q-94-1, but no luck. This last one uses the last radio, but no way.
I also installed the [PATCH][GUIDE] Patch to fully enable GSM on Verizon CDMA Android phones. I could only install it on Clean ROM 1.1 however. It has been impossible to install it on the other ROMS. In any case, no luck again with the patch installed. Here I had a big problem because as I still had these problems, I got into *#*#4636#*#* in the dialer, and touched the band selection option: suddenly, the net showed no signal more and I was unable to make it work again: I finally solved this by installing the stock firmware from here with RSD lite.
No way. I still have this problem and I can not use the phone. I have also tried with another SIM card, but the problem remains. It is a shame because when the connection works, the phone runs very well.
Any help would be very appreciated
Click to expand...
Click to collapse
The problem also seems to become worse with the use of the phone: at the beginning, coming from a factory reset, It can last some hours before the problem occurs. But since it happens from the first time, it happens more and more frequently and the phone can not be used any more. It seems that there could be a software issue.
Another try disabling fast dormancy
I´ve just disabled fast dormancy, because my operator Movistar apparently does not use this technology.
For this, I have modified 3 lines from build.prop system file, as indicated in another site.
The 3 lines are:
ro.mot.ds.fastdormancy.disable=true
telephony.lteOnCdmaDevice=0
ro.telephony.default_network=3
Having fast dormancy enabled when your operator does not support it, seems to drain battery, and could cause other problems. That´s why I´ve done this. I have used root explorer apk from Google store, it is free and it automatically creates a backup of build.prop file when you modify it.
I keep the fingers crossed, let´s see what happens.
Fast dormancy: yes but...
After some days using the phone with fast dormancy disabled (for this, I also added this line to build.prop: ro.ril.fast.dormancy.rule=0 ; I read this for ICS Roms, I do not know if this command is also valid for JB, any comment will be welcome), I still get some cuts (less I would say), but at least the phone tries to restart the connections. For this, I have also installed the apk from Google Play called 3g reconnect.
In any case, any comment would be appreciated.
Issue not solved
I still get data and voice disconnections when I use GSM/UMTS or only UMTS modes. They occur ransomly, and they also occur as soon as I use a WIFI connection. I can only use the phone on GSM only mode, which is frustrating.
Any advise?
errotaxar said:
I still get data and voice disconnections when I use GSM/UMTS or only UMTS modes. They occur ransomly, and they also occur as soon as I use a WIFI connection. I can only use the phone on GSM only mode, which is frustrating.
Any advise?
Click to expand...
Click to collapse
I do not go near *#*#4636#*#* anymore. So tell me do you use that to make these changes (phone info is the app name).
Choosing GSM/UMTS or GSM only
aviwdoowks said:
I do not go near *#*#4636#*#* anymore. So tell me do you use that to make these changes (phone info is the app name).
Click to expand...
Click to collapse
Hello,
I have tried both: using *#*#4636#*#* or using the usual phone settings. Sometimes I have also checked that the changes made with the usual settings appeared also dialing *#*#4636#*#*.
Yesterday evening, I tried selecting global mode instead of GSM/UMTS and it seemed to work for some hours, but today morming, the problem occured again. So far, the unique way I have found to avoid connection cuts off is using GSM ONLY mode. I have to say that I have tried with 2 different SIM cards but the result is identical.
errotaxar said:
.
Click to expand...
Click to collapse
Did you select the 3 dot menu & mess with the "band" settings?
---------- Post added at 07:08 AM ---------- Previous post was at 06:56 AM ----------
http://forum.xda-developers.com/showthread.php?t=2346623
I did that once, and all the signals disappeared. I restored the phone with RSD Lite, that appeared to be the unique way to have again signals working. Now I do not even dare touching these 3 dots.
errotaxar said:
I did that once, and all the signals disappeared. I restored the phone with RSD Lite, that appeared to be the unique way to have again signals working. Now I do not even dare touching these 3 dots.
Click to expand...
Click to collapse
What booby a trap? How many step into!
I don´t know if I am understanding you. I did that once because I did not know what else should I do to solve the problem. I saw that there was the possibility to choose theoritically between US bands and Cellular, and I entered in that menu. It is not so stupid to try that if you have already tried 100 other ways.
In any case, anybody has an idea about how to solve this problem? I´m sure I am not the unique person having this issue with this phone.
errotaxar said:
I don´t know if I am understanding you. I did that once because I did not know what else should I do to solve the problem. I saw that there was the possibility to choose theoritically between US bands and Cellular, and I entered in that menu. It is not so stupid to try that if you have already tried 100 other ways.
In any case, anybody has an idea about how to solve this problem? I´m sure I am not the unique person having this issue with this phone.
Click to expand...
Click to collapse
You are saying the problem is now still there. Yet the radio partition is fixed. Please restate what has been fixed with the rsd flash & what remains unfixed.
Well I think I have fixed and solved the problem: I initially copied the APN settings I had with my previous HTC Sensation, because the phone operator was the same (MOVISTAR), the SIM card too, and I have not moved. In these APN settings, the proxy was "undefined" as well as the proxy gate. I wonder if the radio stucks looking for a proxy each time or whatever. I tried yesterday with completely different APN settings, with a concrete Proxy and a gate... and now I have not had any issue in the past 24 hours. I will still wait a couple of days to see if that was finally the reason.
Which in any case would be silly, because I just applied what was working OK with my sensation, but...
New APN settings: let´s see
Well I think I have fixed and solved the problem: I initially copied the APN settings I had with my previous HTC Sensation, because the phone operator was the same (MOVISTAR), the SIM card too, and I have not moved. In these APN settings, the proxy was "undefined" as well as the proxy gate. I wonder if the radio stucks looking for a proxy each time or whatever. I tried yesterday with completely different APN settings, with a concrete Proxy and a gate... and now I have not had any issue in the past 24 hours. I will still wait a couple of days to see if that was finally the reason.
Which in any case would be silly, because I just applied what was working OK with my sensation, but...
After several days, the problem is still there. After setting new values in APN, it happens less often, but it still happens. I have to switch to GSM only mode.
2 days ago, I was surfing the net at quite high speed with no interruptions, for half an hour. I then shutted off the screen, on again some seconds later, and the connection was blocked, I had to restart the phone. It has to be a software issue.
I finally sold the phone
After concluding that I could never get rid of this problem, I sold the phone, informing that he would have to use mainly GSM only connection. Great phone otherwise, but with this issue.
This sounds like a Baseband Issue.
Europe I have found baseband:
sm_bp_101031.027.32.81P to be the most stable so far, with no H+ support though.
But most Carriers in Europe don't have H+ or LTE.
That baseband is part of build 9.8.1Q-66
Which can be all downloaded here:
http://sbf.droid-developers.org/phone.php?device=8
The baseband from 98.16.1 had H+ support in Europe but connections dropped like crazy.
Same with 98.12.4, we remedied that with Aussie Radio at the time.
Maybe this may help some International users with Data and GSM Loss
Germanese said:
This sounds like a Baseband Issue.
Europe I have found baseband:
sm_bp_101031.027.32.81P to be the most stable so far, with no H+ support though.
But most Carriers in Europe don't have H+ or LTE.
That baseband is part of build 9.8.1Q-66
Which can be all downloaded here:
http://sbf.droid-developers.org/phone.php?device=8
The baseband from 98.16.1 had H+ support in Europe but connections dropped like crazy.
Same with 98.12.4, we remedied that with Aussie Radio at the time.
Maybe this may help some International users with Data and GSM Loss
Click to expand...
Click to collapse
I'm on 9.8.1Q-94-1(98.30.1.XT907.Verizon.en.US) and wanna use it in Germany. any experiences with the radio compared to the suggested one. Or is there another way to boost the performance of the razr m? Compared to my razr I the signal and data quality is really poor...
edit: my baseband-version is: SM_BP_101032.021.32.80P
edit2: ok... now i've flashed several basebands... and the behaviour of the phone is always the same... with the australian baseband of xt905 it wasn't possible to get an hspa-connection. dunno if its enough just to flash the radio-fw?!?!?
so is there an other way to get more stability in my region? i tried to flash the radio from razr hd retail germany. but i think the razr m don't like it when I fool around. actually I love the mobile, so i don't want to make it angry... your suggestions are very much appreciated...

[Q] Note4 loosing data connection

Dear Friends,
has some who owned note 4 faced a continuous loosing data connection?
I have been facing this issue for the passed one week till now, I have tried to format the device but the problem is still there, I have not done anything to the device.
I called my ISP and they said that there is no problem with your sim card.
please advise if anyone of you had similar issue.
thanks
silverado said:
Dear Friends,
has some who owned note 4 faced a continuous loosing data connection?
I have been facing this issue for the passed one week till now, I have tried to format the device but the problem is still there, I have not done anything to the device.
I called my ISP and they said that there is no problem with your sim card.
please advise if anyone of you had similar issue.
thanks
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Click to collapse
I've just experienced this today on my 1 day old N910C, I'm on 4G and suddenly earlier today my 4G mobile data indicator disappeared but it still showing the usual signal bars. Tested browsing, no mobile data it said. Tried putting it to Airplane mode then back to normal, didn't bring mobile data back. Rebooted it, then it's working again.
Not yet to see this problem but my friend's Note 4 had this problem. In the end he brought it to the service center and they replace the mainboard. Still wait and see if it fixes the problem.
it happened me before on other samsung devices too. generally an update fixes it but could be hardware problem too.
Hopefully its software related ive seen a slew of note 4s have this issue both variants included.. its annoying to say the least
Hi, I just got my phone, may i know whether you guys have resolved the issues?? i need to turn the flight mode on and off a few times to get the data connection back online
I sent back to Samsung services center, it seems that they said they reprogram the software. Will observe and see how it goes.
Mines all good now few updates and new provider all good ?
Hi guys, I've experienced the same issue, the mobile data connection suddenly drops (H+ icon doesn't disappear but the download arrow is off, meaning that there's no inbound traffic) and the only way to have the connection back is to to disable mobile data and than reactivate it. I've updated my phone, I even tried to install firmwares of other countries (different csc) and to change carrier but I haven't solved the problem (same situation on my friend's N4).
Hi
i had a problem with wifi. weak or no connection.
100% solution for my note:
go to settings=>location=>use GPS ONLY.
perhaps it solves also your problem...
Hello all! Just faced the same problem! Losing internet connection. Did anyone find a solution?
Note 4
Yes this is BS. If I go to a place with no data service, then travel back to a place with data service, I have to first disable then re-enable the "Mobile Data" toggle in the settings. It's such BS that this is happening. My note 3 NEVER has this problem. Starting to dislike Samsung's buggy releases.
Same issues..
silverado said:
Dear Friends,
has some who owned note 4 faced a continuous loosing data connection?
I have been facing this issue for the passed one week till now, I have tried to format the device but the problem is still there, I have not done anything to the device.
I called my ISP and they said that there is no problem with your sim card.
please advise if anyone of you had similar issue.
thanks
Click to expand...
Click to collapse
----- got same problem here.. keep drop the signal.. until fedup already.. can someone solve this thing? Need answer.. T_T
Any news on topic? I'm facing with internet on mobile connection, even if bars are full and LTE sign is visible.
I've also noticed some lack of signal during usage, even if I'm constantly in city.

[Q&A] Dialer Echo Problem

Hey there Guys,
I have a really annoying Problem with my phone. When someone is calling me and talks nearly everyone tells that they hear a echo of themselve. I had this issue in the 2 4.4.4 Roms Form Danvh and now on the cm12 from netanalyzer. Is there a way to solve it?
Ayr3s said:
Hey there Guys,
I have a really annoying Problem with my phone. When someone is calling me and talks nearly everyone tells that they hear a echo of themselve. I had this issue in the 2 4.4.4 Roms Form Danvh and now on the cm12 from netanalyzer. Is there a way to solve it?
Click to expand...
Click to collapse
Hi
Did you try different modems?
Yes I tried the newest for 4.4.4 and an older one and the cm12 one all with the issue.
Ayr3s said:
Yes I tried the newest for 4.4.4 and an older one and the cm12 one all with the issue.
Click to expand...
Click to collapse
Hi ,
Is the microphone cover?? if so uncover it , try it also without the phone back cover
Try to clean the microphone
Disable noise cancellation
Try and select under network the different bands available ( wcdma , 2G , 4G) to see if it is band related...
Cover oft no change. Clean isnt nessesary cause my phone got repaired had a hard crash. Where do i disable the cancelling in cm12? And isnt the cellular netwerk disabled during call?
Ayr3s said:
Cover oft no change. Clean isnt nessesary cause my phone got repaired had a hard crash. Where do i disable the cancelling in cm12? And isnt the cellular netwerk disabled during call?
Click to expand...
Click to collapse
Hi,
That it got repaired does not mean it has been cleaned...
do not know where it is in CM , on TW is in settings / my device/sound / call
during a call , unless you are using viber, skype or something like that you have to use your carrier network m there are different bands like wcdma , GSM......( mobile networks)
Was the sound in your phone working correctly before the "hard crash" repair?
Before the crash everything were fine. The complete screen module and some Sensor were replaced. The network and cancelling i try today. (Germany a BI different time)

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

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