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....

[Q] No more 3g connection after 2.1 update

Hi all,
I just upgraded my Telus Hero to 2.1, unrooted phone by the way.
The update worked and I am now running 2.1, but I no longer have a 3g connection. Mobile network is ON, but no 3g icon in the top bar, nothing.
Why is this?

did u flash a new radio? after loading new roms, its worth loading new radios too.
try a few different radios to find the best one for you, there isnt exactly one ultimate radio, but usually the newer/latest ones work well. not necessarily
(as far as i know, they are not country specific, nor network specific - so just hit and miss ...)
(ps i would recommend to read a few pages or forums related to radios to give u the best and accurate information - i dont want to accidently give you the wrong info!)
also...does wifi and gps work?? thats usually affected by radios

Checked your APNs in SETTINGS?
Sent from my HTC Hero using XDA App

Ya I had to look up the APN settings online. Thanks ddotpatel!

3G completely broken! :/

Hi there,
I've got a really big problem with my TD2, since i tried a tweak to increase the lifetime of the battery 3g completely broke. I found the tweak somewhere here in the Forum, but I wasnt able to find it again. I was using the XDAndroid ROM and tried to tweak the connection using the service menu (*#*#4636#*#* in android. setting the phone to "GSM only" should still allow 3g with less battery drain in general) but since that whenever my phone is connected via 3g i just don't have internet. It still connects to the network and also shows the 3g or "H" icon but i cant reach any server.
This happens in WiMo and in Android!
As soon I set up the phone only to use GSM everything just works fine. Already tried every possible setting within the android tool but it jumps back to "Unknown" everytime.
I also tried flashing the radio with the 4.49.25.91 ROM from this thread. That didn't help either :/
My WiMo i flashed to the current energy ROM, too.
I really don't know what to try anmore, if someone have got an idea please tell me

Flash it back to your stock ROM and see if that fixes the issue.

Nope :/
Just more slow and ugly than the energy rom ^^ 3g still won't work.. beside that even when booting to android it wont work, so i dont think it's rom related...
It has to be something about the radio and/or band settings that android messed up and cant be restored with the tools i have.... Maybe someone knows a tool that allows much radio tweaking?
Edit:
Nice, flashed back to energy rom and set up the network type and band again (settings -> personal -> phone) and now it's working again!
Even it wasn't a direct solution, flashing a bit around seem'd to be helpful

Hi,
bad news... 3g is working now, but it's very unstable and slow!
I made some speed tests via internet sharing:
GSM Mode -> Edge ("E" Icon)
Everything is stable and speeds are okay for edge (up to 18kb/s download, that is max. for GMSK?)
3G Mode -> UMTS ("3G" Icon)
Connection is VERY laggy and unstable, sometimes it completely loses connection. Only got a single Test through that messured a download rate of 0.03Mb/s that is even below default GSM and ping time of over 500ms. (Sadly i didn't copy the results)
3G Mode -> HSDPA ("H" Icon)
As long it keeps using HSDPA everything seems stable and fast, i'll run a speed test when i'm back from work (i only have 3g at the town i work) and post the results here when i'm done. Didnt have that much time to test this yet.

[Q] Some apps can't connect using wifi (but can using 3G) on my Motorola Defy

Hello,
If you don't want the boring details of how I discovered the problem feel free to skip the next couple of paragraphs and go straight to the technical details.
I got my first Android phone (Motorola Defy) a couple of weeks ago and at first I was only using it with wifi because my data plan wasn't activated yet. While playing with it a little I realised that I saw a lot less ads than my boyfriend on his 6 month old Defy. I thougt it was weird but, well, seeing less ads is not a big problem.
Then when I got my data plan I saw that when I wasn't home I saw a lot more ads, so I began to suspect it had to do with how my phone was connected to the internet : wifi or 3G.
Next I wanted to try out Astrid and when I tried to log in using my Google account it failed repeatedly. Until I disabled wifi and it logged in fine using 3G.
Then I installed RTÉ DocOnOne to listen to documentaries while falling asleep. When wifi is enabled, it cannot start up because it can't connect (network timeout). Over 3G, no problem.
At first I thought it was my router blocking ports or something but it happens with different wifi APs and more importantly my boyfriend's phone, connected to the same access point, loads everything without a problem.
Let's sum up:
Some apps can't access the network using wifi but work fine when using 3G.
It happens regardless of the wifi AP (tried 4 different ones with different routers) and another phone using the same app connected to the same wifi AP can access the network just fine.
If I initiate the connection using 3G then switch to wifi (typically I launch the app with 3G, switch wifi on without closing the app), it still works after that (RTE DocOnOne has no pb streaming the documentaries once it has launched)
My phone is a Motorola Defy, French retail ROM, not rooted, no motoblur account (skipped the configuration), Froyo 2.2.2 (already on the phone when I got it), system version (if that means anything to you) Version.34.164.3.MB525.Retail.en.FR, kernel 2.6.32.9-g050ccf2, build 3.4.2-164
I can't give as much details about my boyfriend's phone (that doesn't have the problem) because he's not here right now but I can tell you that it is a Motorola Defy too, French retail (I think) ROM, Froyo updated from preinstalled Eclair (using the official Motorola update), not rooted, with a motoblur account
I have no idea if that's relevant or not, but my phone has the "google maps 5.7.0 crashes on Defy" issue (18446 in the android issue tracker) and my boyfriend's phone hasn't.
Has anyone encountered this issue before ? I couldn't find anything on this forum or with a google search.
Is there any tool I can use to try and find the cause of the problem ?
Thank you for reading all this, sorry if my message was long but I wanted to give as much detail as possible to help the nice people who may find what is wrong with my phone

I didn't read all..
but if your phone don't have problems then check this:
1. go to settings
2. Select "Location & security settings"
3. enable this "Use wireless networks" Location determined by WiFi and/or mobile networks
4. test does it work...

Hello manumanfred,
I did what you suggested (actually it was already checked) and the problem is still there (tried unchecking it too).
I am not sure why you suggested it, was that related to some phones having wifi problems in some countries ? I read a thread about that when I was researching my problem but it is different. In my case, wifi works most of the time, but some requests always time out.
Thanks for trying
Anyone else has an idea of something I could try ?

Anne-Laure said:
Hello manumanfred,
I did what you suggested (actually it was already checked) and the problem is still there (tried unchecking it too).
I am not sure why you suggested it, was that related to some phones having wifi problems in some countries ? I read a thread about that when I was researching my problem but it is different. In my case, wifi works most of the time, but some requests always time out.
Thanks for trying
Anyone else has an idea of something I could try ?
Click to expand...
Click to collapse
Hello, did you solve the issue?

[Q] Unlocked HD2 Need Rom that connects with AT&T

Hello all I have a PROBLEM!
I have an unlocked HD2 using AT&T, my signal is extremely weak so my thoughts were to add an Android Rom in hopes to increase the signal but I have tried several NAND Roms:
RAFDROID
HYPERDROID CM7
NEXUSHD2 GINGERBREAD
HYPERDROID GBX
ARKAT DOUBLESENSE
REDUX V1.2
I am using the MAGLDR 113, installing using CWM 3.2. I am not sure which radio i have... perhaps that's the problem?
It would recognize the AT&T network and would say registering to AT&T but after 30 seconds or so it would say unable to connect at this time.
PLEASE help I am currently phoneless.
Thanks
PS it doesn't have to be android anything with a signal will work

6xceo said:
Hello all I have a PROBLEM!
I have an unlocked HD2 using AT&T, my signal is extremely weak so my thoughts were to add an Android Rom in hopes to increase the signal but I have tried several NAND Roms:
RAFDROID
HYPERDROID CM7
NEXUSHD2 GINGERBREAD
HYPERDROID GBX
ARKAT DOUBLESENSE
REDUX V1.2
I am using the MAGLDR 113, installing using CWM 3.2. I am not sure which radio i have... perhaps that's the problem?
It would recognize the AT&T network and would say registering to AT&T but after 30 seconds or so it would say unable to connect at this time.
PLEASE help I am currently phoneless.
Thanks
PS it doesn't have to be android anything with a signal will work
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=611787
Try this radio 2.15 its the newest one procedure is the same as installing magldr
1.make sure the phone is off
2 hold the volume button down and turn the phone on
3 connect your phone to your pc thru usb
4 flash the radio from your pc.
hope it helps
in the future post questions in Q and A section or you'll get flamed

Thanks for the link to the radio I appreciate it did not see to help the signal issue. In regards to improper posting that was an oversight on my part is there a way to delete it from here and post in the proper category?

it might just be your location...see if you get better signal elsewhere

casemandan said:
it might just be your location...see if you get better signal elsewhere
Click to expand...
Click to collapse
+1
Tapatalked u see

rom has nothing to do with the connection you're getting, if you have the latest radio(2.15.50.14) and the proper apn settings for att, then is definitely the service in your area. I have TMO and I get crap signal in my home with any and all roms, but once I'm outside I get good service, plus in data speed you'll only will get Edge/2G speed , but I'm sure you already knew that happens when using a TMO phone in ATT and vice versa .

I'm using my HD2 on AT&T and mine is working great. I'm running Rafdroid Desire HD Froyo. No signal problems at all.

6xceo said:
Thanks for the link to the radio I appreciate it did not see to help the signal issue. In regards to improper posting that was an oversight on my part is there a way to delete it from here and post in the proper category?
Click to expand...
Click to collapse
Lets check whether your device is having a loose connection or not first. Put on your wifi, stand some feets away from the router and see if you can connect. If your having weak signal, stand near the router and check. If you still have a weak signal put on your bluetooth and see if you can discover any other bluetooth devices.
If you are having problem with these two connection as well, then my friend its time to open up your device and prepare for surgery.
Else, despite getting full wifi and bluetooth, if you are still having network problems, then place an aluminium foil on the back side of your device in full.
now see if you are having any improvement. These are just preliminary tests to check whether your device needs some serious disassembling.

I'm having the same problem, although I do get connections sometimes but then when i try to send a text or make a call it says network unavailable. I do have gprs data turned off on my phone's account with ATT. I messed with some settings in the phone options after dialing that *# thing and it worked but like i said after one text it just stoppped and when I go into network settings and click att it says registering and then after a few seconds it says unable to connect

After a few more hours of searching I found a way to get a much me stable connection. However, sometimes I lose signal but not like before, when I used to get a warning notification in the taskbar thing. What you have to do is go into the special phone settings by going to the dialer and typing *#*#4636#*#* where it says wcdma preferred you need to change it to GSM only and do a reboot and you should get much better signal.
Sent from my HTC HD2 using XDA App