Database Users

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....

ok. i know its not right to post it here. but please someone help ?

ok i seriously need some help. MODs please delete this if you feel like it. but i really want to know the answer for this since i posted it in the OT but no one replied.
my problem is signal issue with the EVO roms. specially from Mdeejay EVO roms
i downloaded the cayanogen rom and i have no problem with the signal " specially if i use it in 2G connection. its almost all the time full bars. while on 3g it sometimes varies between 2, 3 or full.
however, with Mdeejay eVo Sense v. 1.6 Revolution" and the other "warm evo" rom the he made. i do have the signal problem .
it sometimes show to me no bars at all just dots. even tho, if i call, or someone call, it goes through ...i think lol
it keeps on playing with the bars.
whats up with that? i am using a Tmobile version of the phone. " no i am not in US but i wanted extra ram/rom
i have been told that the HD Euro version has better signal. is that bs ?
anyway please please please someone help me with my question about the signal. its killing me. i love this rom so much i want to keep it. even the wallpapers are ****ing amazing. but this signal bar thing is driving me crazy

Honestly man i can't help you! I have signal issues also in all Android roms! I don't think Euro HD2 has a better signal!!! At least mine doesn't!
I feel so bad when i see an old nokia with a full signal and mine is 1 bar or none! I tried radio 2.12, 2.14, and 2.15 all the same and signal fluctuates a lot!
But i should tell you this: I like your nickname a lot!

for startes, have you tried flashing a different radio?

tgtoys said:
for startes, have you tried flashing a different radio?
Click to expand...
Click to collapse
i might be an idiot if i answer this honestly but so be it. i didnt really flash the system. my friend did it for me . he told me its the best and fastest rom available for HD2 to froyo " built in andriom app to boot also "
all i do is just change the andriod roms by changing the folder on SD card and it does the rest lol.

Life Engineer said:
Honestly man i can't help you! I have signal issues also in all Android roms! I don't think Euro HD2 has a better signal!!! At least mine doesn't!
I feel so bad when i see an old nokia with a full signal and mine is 1 bar or none! I tried radio 2.12, 2.14, and 2.15 all the same and signal fluctuates a lot!
But i should tell you this: I like your nickname a lot!
Click to expand...
Click to collapse
i see your from lebanon ? keefek 7abiby
anyway. actually if you install the cayanogen rom. and switch the network signal to 2G only. it never drops below 3 bars in my case. which is good for me " i dont use 3G at all. and never planing to. i have wifi all around me "

I have the same problem with m-deejay builds.
The connection keeps dropping. Try using a darkstone build. Works fine for me.

hav0c said:
I have the same problem with m-deejay builds.
The connection keeps dropping. Try using a darkstone build. Works fine for me.
Click to expand...
Click to collapse
but i really like the evo theme the dude used. even the colors and everything. :/
its fast and stable without much of battery sucking.
if i put any other theme it will look desire. i dont want a desire i want EVO lol

Moved to General Discussion.
Mark.

ll_l_x_l_ll said:
but i really like the evo theme the dude used. even the colors and everything. :/
its fast and stable without much of battery sucking.
if i put any other theme it will look desire. i dont want a desire i want EVO lol
Click to expand...
Click to collapse
I've tried to solve it by using darkstone's kernel but this does not work as well.
Others have this problem as well if you search in m-deejay's threads. I think you should try solving your problem there

hav0c said:
I've tried to solve it by using darkstone's kernel but this does not work as well.
Others have this problem as well if you search in m-deejay's threads. I think you should try solving your problem there
Click to expand...
Click to collapse
i didn't know that there are other people who are having same problem.. i thought i am the only one and ur second in the whole world.
for period of time i thought my TMOB has a problem with the signal .
wtf i was searching in all his thread and i got tired after page 20 since i didnt see anything related.
can you direct me? thanks

Try entering *#*#4636#*#* in phone and from the apeeared hidden menus phone information change WCDMA preferred to GSM AUTO (prl)
Give feedback please.

That Code isn't working
Sent from my HTC HD2 using XDA App

memin1857 said:
Try entering *#*#4636#*#* in phone and from the apeeared hidden menus phone information change WCDMA preferred to GSM AUTO (prl)
Give feedback please.
Click to expand...
Click to collapse
That does not solve the problem for me. Thanks anyway..

ok i downloaded a program called no signal bar. from the market place.
it basically notify you when your phone is out of coverage.
and it works very well. so now. if i get a no signal bar from the rom, my signal notifier tell me that the phone is didnt lost signal. i try to make a call and it goes through. its accurate.
so i am happy for now. at least i am not afaird if losing signals when i see the fake bars from the rom playing .
i even tried to call my self when the signal no bars while the program " no signal bar"tells me i still have coverage. and it went through . i am happy panda... for now till i get a better fix for this

3G does not work when the bars are not displayed.
You can see this in the phone info application when you type *#*#4636#*#*

hav0c said:
3G does not work when the bars are not displayed.
You can see this in the phone info application when you type *#*#4636#*#*
Click to expand...
Click to collapse
1- for some reason this number doesnt work for me. i am using Tmobile HD2 and the Evo Rom . might have anything to do with it ?
2- i really dont care about 3g. i just dont want the signal bar to keep showing there is no signal with its 4 dots crap signal when there is in fact a very good signal.
its like how the iphone 4 used to display signal that is not true.
are we the only 2 here who have this problem ? lol might be defective phones? lol

you can install the program called NETWORK from App store and basically change the setting to GSM (PRL) from that program

ll_l_x_l_ll said:
1- for some reason this number doesnt work for me. i am using Tmobile HD2 and the Evo Rom . might have anything to do with it ?
2- i really dont care about 3g. i just dont want the signal bar to keep showing there is no signal with its 4 dots crap signal when there is in fact a very good signal.
its like how the iphone 4 used to display signal that is not true.
are we the only 2 here who have this problem ? lol might be defective phones? lol
Click to expand...
Click to collapse
I don't think there is anything wrong with the phone.
I never had any issues with Windows Mobile or with any other Android build.

hav0c said:
I don't think there is anything wrong with the phone.
I never had any issues with Windows Mobile or with any other Android build.
Click to expand...
Click to collapse
i have tried around 3 builds so far or 4.
the only builds that has perfect signal bar to me is Cayanogen Builds " where in the setting there is an option called " Use only 2G networks " and have that checked.
any other version " specially if its build based on EVO ? " has a problem for me.
i am surprised not many are talking about this really.

mynlal said:
you can install the program called NETWORK from App store and basically change the setting to GSM (PRL) from that program
Click to expand...
Click to collapse
i cant find a program called " NETWORK" alone.
are you sure about the name ?
is it paid app ?

Possible fix for data stalling issues some of us are having.

Right, a little back story.
I brought my SGS2 at the start of May in the UK on O2 so I have an early model which came with the firmware before KE1. I rooted in the first week and was flashing Villainrom 1.0 before too long with no data problems.
I think it was around KE2 with Lite'ning rom that I first saw my phone constantly switching between H & 3G and stalling when receiving or sending data. This behaviour has continued through all the firmwares I've tried with many different modems. I moved onto to Cognition when it was v1.01 and have been using it all the way unto 1.2 with the KG3 modem. Again still with data connecting problems.
Things I have tried -
Turning off fast dormacy
Editing the build.prop http://forum.xda-developers.com/showthread.php?t=1097612&highlight=build.prop pages 1-5
Switching off HSDPA/HSUPA via the *#301279# command
Disabling juice defender
Switching to WCDMA only
Changing modems
Full hard reset and reflasing of roms
Even with the above on multiple roms and rom versions my data connection was unreliable at best and killing spree warranting at its worst.
Possible fix-
What i found lurking on XDA on a slow day at work was the command below
*#2263#
This allows you to select which bands your phone uses. I selected option 2 then tested the 4 available bands. They all resulted in a complete loss of reception except WCDMA 2100. this is probably network specific you'll need to try it yourselves.
The results and current settings
Now when I try to use my data connection the phone no longer switches between H & 3G. It will start on 3G then find H and stay there, I see a slight delay if its been in deep sleep or JD has cut the connect but this is normal for the phone to start on 3G to save power.
Fast dormacy - off
build.prop -stock/unedited (I found this worked for me for a while but since 2.3.4 it didnt seem to help)
HSDPA/HSUPA via the *#301279# command - both on
Juice defender - on
WCDMA only selected as when picking a band it doesn't seem to like having a GSM band selected as well (happy to be corrected on that)
Modem KG3 -
Rom cog 1.2 - I'm patiently waiting 1.4 based on KG6 to test my findings.
Conclusion-
Okay it could be that selecting a band does F'all and that I'm seeing better results for a completely different reason. I'm not a developer so my fixing skills amount to playing with stuff I don't fully understand and seeing how more or less broke I've made it.
After thought -
Ive seen on the sensation forum they have discussed the wrong IMEI code being the cause of poor data speeds so I may look into that next.
Please share your experiences and anything else you've tried.

Ive seen on the sensation forum they have discussed the wrong IMEI code being the cause of poor data speeds so I may look into that next.
That should be no connection as IMEI belongs to phone and handshakes with network first .
KG6 modem some report as better .
jje

I will have to give this a try and see how it works, thanks for the share.

I am in the same boat, it is VERY frustrating to say the least. A typical scenario for me is: reading a web page on my S2 for a good few minutes (3g has gone to sleep mode by the time I have finished reading), I click on a link, 3g flashes, H comes up and flashes once.....wait.....wait.......wait......10 seconds later it decides to initiate a connection and take me where I want to go! It does the same thing with the XDA app. I have been onto O2 about this a couple of weeks ago, all they did was give me the settings over the phone (which were the exact same ones I already had) and they also sent me a replacement sim card, suffice to say, there is no change. Now I am convinced its a network problem of some sort, I have a three sim card which I have been trying out and the above problems do not exist anymore when using three, I click a link after 3g has gone to sleep and it goes from 3g to H and initialises the data transfer in one smooth motion. It looks like I'll be getting my PAC code and moving to Three!

would be interested to hear if switching to the 2100 band helps at all seeing as your on O2 as well

Mine is O2 via Giffgaff and no problems at all .
Tested KG6 modem Wi|Fi only and it is a stronger signal .
jje

Yeah, forgot to mention that, I have just enabled it. I can't test at the moment though coz there is no 3G coverage where I am. The only problem with enabling it is you will not be able to connect to GPRS or Edge if you need to. But it is worth testing regardless.

Just been out and about and tried that setting, didn't make much difference unfortunately

Maybe it was a combination of tweaks on my end. What rom & modem are you using?

bentez2003 said:
Maybe it was a combination of tweaks on my end. What rom & modem are you using?
Click to expand...
Click to collapse
Villain 2.3 with KG3 modem. The problem has been the same whatever ROM I have used, I even flashed back to O2 stock a couple of weeks ago to see if it was a ROM problem, but that was the same. I can't remember what it was like when I first got the handset though, mine was the first batch as well.

JJEgan said:
Mine is O2 via Giffgaff and no problems at all .
Tested KG6 modem Wi|Fi only and it is a stronger signal .
jje
Click to expand...
Click to collapse
The wife is on Giffgaff so I think I'll give that sim a try before I get my PAC off O2.

bentez2003 said:
Right, a little back story.
What i found lurking on XDA on a slow day at work was the command below
*#2263#
This allows you to select which bands your phone uses. I selected option 2 then tested the 4 available bands. They all resulted in a complete loss of reception except WCDMA 2100. this is probably network specific you'll need to try it yourselves.
.
Click to expand...
Click to collapse
hi
i am just testing now this fix. i have an o2 phone and i did the same changes you did, disable fast dormancy, changed build.prop settings, will let you know after going a few times underground ;-)
gabrio

confirm, this is working, even when i go underground or when the signal goes away, it gets back to H/H+ and works, gabrio

Give it a little while, I think you'll be back saying it didn't work
Personally, I went ahead with my threat and moved over to 3uk, never looked back since with this problem, been perfect!

I've tried it all. Disabled fast dormancy, hspa, toyed with band selection, edited build.prop (btw, don't bother with it, the network settings you find on the web to type in don't work on the s2) you name it - but it would still cut out. Luckily, my phone is unlocked so I switched my provider and now it works like a charm with all the bells and whistles enabled. I can ride the tram all across warsaw and maybe have a handful of 2-3 second hiccups when I'm listening to online radio. Curiously enough, on my previous provider I've noted that there are some areas (like a busy mall - Arkadia) where it would not stall as well as a few other places, and most other areas that were notorious with data hanging. I'm convinced now that it is an issue on the telco side (*cough*Orange*cough*), and too bad because I was on a prepaid plan with them that for roughly $30 I had 7GB of transfer. I guess they figured they can promise the world on their trash network, because nobody would actually use it up. YMMV.

Had this issue with a UK GS2 purchased from Negri using it on AT&T.
Since upgrading to the latest UK firmware with 2.3.4 I have not had the issue going on about 2 weeks now!
Man was that issue annoying. Had to restart the phone sometimes to get data back.
Joe

Ok I did that too though how abt lag? Phone lags a bit opening large sms conversations and browsing home screens.. But peace. Yours too?
Gabrio
Sent from my GT-I9100 using XDA App

[Q] Mobile data problem

I've got some problems with mobile data on my Note 4. I've bought unbranded phone in shop unrelated to any mobile provider. It's Snapdragon version (N910F).
I've got prepaid service, without LTE available (if that's important). The problem is that every now and then mobile data simply stops. There is still H or H+ sign in notification bar, and upload arrow blinks. but when i try to open web page or send message through viber, wattsup it acts like there is no network. Then i have to wait for about 30 seconds or manually turn mobile data off and then on again for internet to start working again.
I've tried changing APN settings, changing network type, but the problem is still there.
I've read some similar issues with Note 3 and SGS5 users, and some problems with modem versions, but i couldn't find anything from note 4 users
And this problem is very frustrating on phone like Note 4
Is there anything else i could try?

Mate i have exact same problem

I don't know if this is relevant, if your apn settings has a proxy and port values, try to delete it and let the proxy and port be blank. I had issues previously with data getting stuck while using proxy setting.
Sent from my SM-N910C using Tapatalk

I also loose data signal and on calls people cant hear me properly.. doesny always happen. Ill try thanks

Also experiencing this with Tmobile UK.

Also have this exact same problem with the unbranded SM-N910H, H+ but no internet all of a sudden. I also sometimes lose the whole signal (Emergency Calls Only) so I have to reboot or turn airplane mode off and on to get it working again. I asked some people and they told me it's a coverage problem with the network provider. IDK if it's true.

No ahmadmob its the phone although i have n910u i have exact same problems as u!! I thinks its modem hopefully gets solved soon im in Australia using prepaid only 3g/h+

Ausboy 2011 said:
No ahmadmob its the phone although i have n910u i have exact same problems as u!! I thinks its modem hopefully gets solved soon im in Australia using prepaid only 3g/h+
Click to expand...
Click to collapse
Glad it's not a carrier specific issue.
Guess I'll wait for an official fix or for other radios to become available.

I rang samsung australia few weeks ago and they had no idea than again when do they ever!? Lol so looks like we will have to wait buddy

Some common suggestions:
1- Swap the SIM card into another phone to see if the problem persists?
2- If the problem is due to Note 4, you may need to update your firmware/baseband to the latest one (if one is available, or you have to wait until Samsung release it), or try another firmware (from another model) or custom ROM.

Tried already mate sims fine updated reflashed stock rom and still same problem.. hopedully update comes soon

I just tried sim card from another carrier, and for now, everything looks fine.
I'll go ask for a new sim from my carrier, or switch my number to another one.

Sorry for digging, didn't want to make a new topic.
I'm here with the same problem. Did any of you find solution for it (other than switching to different carrier). I'm on Play in Poland and i find mobile data problematic mostly in roaming (free roaming with every carrier in Poland). For example on t-mobile or plus i find my up arrow constatnly blinking and H switching to H+ and again. Problem is even worse with 2 or less signal bars. I'm thinking of changing sim cars to new one, but on my note 2 everything works perfectly fine.

I thought I noticed a slight improvement after the final KitKat update, may have been a placebo effect though.
In general it's still bad, much worse than my HTC M7, same network, same location etc. It seems to be particularly bad when travelling at speed e.g. on the train I get full bars but only 1 arrow flickering.
Upgraded to Lollipop a couple of days ago and finally rooted, doubt this will make a difference but will be able to report during my commute tomorrow.
In summary: The HSDPA modem on my phone is rubbish.
P.S. Previous phones I've owned came with options for different modems, I'd often flash these to improve performance, where are they for the Note 4?

I think they're not available yet, at least on lollipop...

Mine is completely fixed after a few updates i get 4g+ here excellent reception

Medved77 said:
I thought I noticed a slight improvement after the final KitKat update, may have been a placebo effect though.
In general it's still bad, much worse than my HTC M7, same network, same location etc. It seems to be particularly bad when travelling at speed e.g. on the train I get full bars but only 1 arrow flickering.
Upgraded to Lollipop a couple of days ago and finally rooted, doubt this will make a difference but will be able to report during my commute tomorrow.
In summary: The HSDPA modem on my phone is rubbish.
P.S. Previous phones I've owned came with options for different modems, I'd often flash these to improve performance, where are they for the Note 4?
Click to expand...
Click to collapse
Nope. No Change.

Ausboy 2011 said:
Mine is completely fixed after a few updates i get 4g+ here excellent reception
Click to expand...
Click to collapse
Could tell more how did you fix your problem?

All fixed!
I can confirm that after the lollipop 5.0.1 update on my SM-N910H all my mobile data problems/mobile network drop outs are solved!. 3 days without any problems now.
Edit: maybe it had something to do with Radio and it got fixed after it got updated along with the lollipop update package?

Guys, here in my country Bulgaria, many of us owners of SGN4 have the same issue and wilth Lollipop also. I have noticed that with KitKat the problem was more frequent than Lollipop but it is still there. We have tried Polish Lollipop and now the official Bulgarian Lollipop but the problem still exists. I hope somebody will tell me which ROM you have installed (oficial) so I could share it with my fellow citizens. Thank!

[QUESTION] What affects the phone signal?

Hi! I have the US 4GB 64GB version of Moto G5 Plus which is not avaiable here in Brazil.
Gonna try to be clear... but sorry for my bad english...
The fact is that I was on debloated Nougat (bootloader unlocked and rooted) and was experiencing very poor signal in several situations... the most notable was when I was on the subway and since this phone is veeeeery popular here I could see a lot of people using this phone, browsing, facebook, instagram etc. but, even though the network signal in status bar was full or almost full for me, it was like I had no data at all..
I then upgraded to Oreo Soak Test #3 yesterday and today I noticed that now in the subway, I have no data at all, there is no 4g/3g symbol next to the signal symbol...
So the question... what affects the phone signal? What can I do to solve this issue?
Oh, my carrier is maybe the best in my region when it comes to coverage
Thanks in advance!

EFS affects Signal, and IMEI
Hello,
You know English well (comparing to my bad English).
Loss of Network (Data), and IMEI is caused by deleted EFS.
EFS is deleted in the process of Installion of some custom roms (including stock rom).
Rostoring EFS on Oreo soak test won't work for several reasons (for me it only worked on Nougat).
Restore Process:
Must Have:
1. Andorid 7.0 Stock Rom (Fastboot) (Twrp flashable won't work)
https://forum.xda-developers.com/g5...irmware-npn25-137-67-5-fastboot-t3694738/amp/
2. EFS Backup (must be backup from when you had signal)
3. Optional Magisk or SuperSU
https://www.xda-developers.com/how-to-install-magisk/
Step 1: Flash Stock Rom
Step 2: Flash Magisk (optional, but recommend)
Step 3: Restore EFS
Finally Enjoy!

MitenP5 said:
Hello,
You know English well (comparing to my bad English).
Loss of Network (Data), and IMEI is caused by deleted EFS.
EFS is deleted in the process of Installion of some custom roms (including stock rom).
Rostoring EFS on Oreo soak test won't work for several reasons (for me it only worked on Nougat).
Restore Process:
Must Have:
1. Andorid 7.0 Stock Rom (Fastboot) (Twrp flashable won't work)
https://forum.xda-developers.com/g5...irmware-npn25-137-67-5-fastboot-t3694738/amp/
2. EFS Backup (must be backup from when you had signal)
3. Optional Magisk or SuperSU
https://www.xda-developers.com/how-to-install-magisk/
Step 1: Flash Stock Rom
Step 2: Flash Magisk (optional, but recommend)
Step 3: Restore EFS
Finally Enjoy!
Click to expand...
Click to collapse
thanks lol
but nonono
I'm not talking about that but bad signal strenght... I can use my phone, but in certain places, like the subway, the internet is so slow that it is unusable... but, as I said, I can see a lot of people even playing Clahs Royale with no problem

I think this phone is generally weak in this category. My wife has a Samsung S6 active and we both use Tmobile. In similar locations hers gives much better reception.

luizlee86 said:
Hi! I have the US 4GB 64GB version of Moto G5 Plus which is not avaiable here in Brazil.
Gonna try to be clear... but sorry for my bad english...
The fact is that I was on debloated Nougat (bootloader unlocked and rooted) and was experiencing very poor signal in several situations... the most notable was when I was on the subway and since this phone is veeeeery popular here I could see a lot of people using this phone, browsing, facebook, instagram etc. but, even though the network signal in status bar was full or almost full for me, it was like I had no data at all..
I then upgraded to Oreo Soak Test #3 yesterday and today I noticed that now in the subway, I have no data at all, there is no 4g/3g symbol next to the signal symbol...
So the question... what affects the phone signal? What can I do to solve this issue?
Oh, my carrier is maybe the best in my region when it comes to coverage
Thanks in advance!
Click to expand...
Click to collapse
wastedige said:
I think this phone is generally weak in this category. My wife has a Samsung S6 active and we both use Tmobile. In similar locations hers gives much better reception.
Click to expand...
Click to collapse
The problem isn't the phone it's the rom your using. Example For me: with VOLTE (Verizon) From my house
Pixel Experience gives 40MB Down and 33MB UP
Stock Rom gives 20-30MB Down and 20 UP
---------- Post added at 11:50 PM ---------- Previous post was at 11:47 PM ----------
luizlee86 said:
Hi! I have the US 4GB 64GB version of Moto G5 Plus which is not avaiable here in Brazil.
Gonna try to be clear... but sorry for my bad english...
The fact is that I was on debloated Nougat (bootloader unlocked and rooted) and was experiencing very poor signal in several situations... the most notable was when I was on the subway and since this phone is veeeeery popular here I could see a lot of people using this phone, browsing, facebook, instagram etc. but, even though the network signal in status bar was full or almost full for me, it was like I had no data at all..
I then upgraded to Oreo Soak Test #3 yesterday and today I noticed that now in the subway, I have no data at all, there is no 4g/3g symbol next to the signal symbol...
So the question... what affects the phone signal? What can I do to solve this issue?
Oh, my carrier is maybe the best in my region when it comes to coverage
Thanks in advance!
Click to expand...
Click to collapse
wastedige said:
I think this phone is generally weak in this category. My wife has a Samsung S6 active and we both use Tmobile. In similar locations hers gives much better reception.
Click to expand...
Click to collapse
Your results aren't accurate.
Get two of the same phone ex. iPhone 8
One will always have better Network speeds then the other, even if their new.
---------- Post added at 11:50 PM ---------- Previous post was at 11:50 PM ----------
luizlee86 said:
Hi! I have the US 4GB 64GB version of Moto G5 Plus which is not avaiable here in Brazil.
Gonna try to be clear... but sorry for my bad english...
The fact is that I was on debloated Nougat (bootloader unlocked and rooted) and was experiencing very poor signal in several situations... the most notable was when I was on the subway and since this phone is veeeeery popular here I could see a lot of people using this phone, browsing, facebook, instagram etc. but, even though the network signal in status bar was full or almost full for me, it was like I had no data at all..
I then upgraded to Oreo Soak Test #3 yesterday and today I noticed that now in the subway, I have no data at all, there is no 4g/3g symbol next to the signal symbol...
So the question... what affects the phone signal? What can I do to solve this issue?
Oh, my carrier is maybe the best in my region when it comes to coverage
Thanks in advance!
Click to expand...
Click to collapse
wastedige said:
I think this phone is generally weak in this category. My wife has a Samsung S6 active and we both use Tmobile. In similar locations hers gives much better reception.
Click to expand...
Click to collapse
Your results aren't accurate.
Get two of the same phone ex. iPhone 8
One will always have better Network speeds then the other, even if their new.

devvshukla said:
Avoid thick covers and cases for mobile, if your cover has metal on it then there is a good chance it is interfering with signals. Usually, having poor signals is more of a hardware issue than a software one.
Off topic - I read somewhere that some criminals keep their communication devices inside closed packed Lead Boxes. Those block nearly all type of signals, be it related to Wifi, Bluetooth, Cellular or GPS.
Click to expand...
Click to collapse
But that nothing to do with no signal inside subway.
Edit: Metal won't have a major affect on the signal, depending on the phone to metal ratio. Similar to magnets.
Not to be rude but "was using debloated stock then changed to Oreo stock" Has everyone knows signal is bad on roms other then the original (which no one has)..
I forgot to ask you what signal do you get?
LTE, 4g, H+, H, 3g, 2g?