Losing Internet - Bug? - Galaxy S II Q&A, Help & Troubleshooting

Hi guys,
I have a SGS2, and it's wonderful, but I am noticing a very annoying issue.
I will be browsing a site, for example, and then go through a bad reception area, so I lose internet. However, a lot of the time, it never reconnects. I might have the H, and 4 bars... but only the up (green) arrow flashes... and I get 'This page cannot be displayed'. No mail.. nothing. Internet connectivity is gone .. even though I am sure I am in a good reception area.
What I have to do is go into Aeroplane Mode, and then out of Auroplane Mode, which seems to force a reconnect... and then all is fine. It seems when I lose reception ... it doesn't try to reconnect.
I am running 2.3.2. Maybe it's an app? I use 3D watchdog... and a few other apps... but it's really annoying. I hope it's a known issue, that might get resolved.
Today I noticed I had no mail for a few hours... Went into Aeroplane Mode, and out, and then they all flooded in...

Search is a beautiful feature. You should try it, the answer is there

Give us a hint. As a non technical guy, what am I looking for?

Never had this problem on my Galaxy even with 1 bar signals, but I know what you're talking about tho, had the problem on iPhone 4 until apple released an update which fixes the modem.

Cralis said:
Hi guys,
I have a SGS2, and it's wonderful, but I am noticing a very annoying issue.
I will be browsing a site, for example, and then go through a bad reception area, so I lose internet. However, a lot of the time, it never reconnects. I might have the H, and 4 bars... but only the up (green) arrow flashes... and I get 'This page cannot be displayed'. No mail.. nothing. Internet connectivity is gone .. even though I am sure I am in a good reception area.
What I have to do is go into Aeroplane Mode, and then out of Auroplane Mode, which seems to force a reconnect... and then all is fine. It seems when I lose reception ... it doesn't try to reconnect.
I am running 2.3.2. Maybe it's an app? I use 3D watchdog... and a few other apps... but it's really annoying. I hope it's a known issue, that might get resolved.
Today I noticed I had no mail for a few hours... Went into Aeroplane Mode, and out, and then they all flooded in...
Click to expand...
Click to collapse
Had this problem as well.There is a thread here or in development section about disabling fast dormancy (tried it but didnt solve my problem).Also there is a thread here talking about bad reception (search it you ll recognize it) and few guys added few lines in the build.prop file but I didnt test it.I solve it with factory reset.The problem you have is that the phone when is not using data connection goes from H to 3G to save battery but some times when is trying to go from 3G to H to use data(eg you open your browser) that action failed.Thats why you have disconnections and you need to reset the connection.
ps after I did factory reset I faced this problem one more time and after that till now I had zero disconnections (10 days now tested)
ps2 check from settings>about phone>battery usage the cell standby persent.If you click on it you ll see a "time with out signal" and a persentage.This in my case is still high (100%!!!!!) but I think this is a bug.
Hope to help
Sent from my GT-I9100 using Tapatalk

"disabling fast dormanc" seems to have solved it!
Thanks!

Cralis said:
"disabling fast dormanc" seems to have solved it!
Thanks!
Click to expand...
Click to collapse
Am having same problem, where did you find "disabling fast dormanc". ??
thanks
sorry found it.
Dial *#*#9900#*#*

I was also having this problem, disabling fast dormancy solved it.

Is this an Android issue, or a SGSII issue?

Solve it ? I know later . Bug I think.
Sent from my GT-I9100 using XDA App

Cralis said:
Is this an Android issue, or a SGSII issue?
Click to expand...
Click to collapse
Some carriers using fast dormancy so its not sgsii or android issue
jowett69
Solve it ? I know later . Bug I think.
No its not a bug.As i wrote some carriers using fast dormancy and of course samsung using it in order to save your battery

Cralis said:
Hi guys,
I have a SGS2, and it's wonderful, but I am noticing a very annoying issue.
I will be browsing a site, for example, and then go through a bad reception area, so I lose internet. However, a lot of the time, it never reconnects. I might have the H, and 4 bars... but only the up (green) arrow flashes... and I get 'This page cannot be displayed'. No mail.. nothing. Internet connectivity is gone .. even though I am sure I am in a good reception area.
What I have to do is go into Aeroplane Mode, and then out of Auroplane Mode, which seems to force a reconnect... and then all is fine. It seems when I lose reception ... it doesn't try to reconnect.
I am running 2.3.2. Maybe it's an app? I use 3D watchdog... and a few other apps... but it's really annoying. I hope it's a known issue, that might get resolved.
Today I noticed I had no mail for a few hours... Went into Aeroplane Mode, and out, and then they all flooded in...
Click to expand...
Click to collapse
I am so glad you asked. I have had the same problem and even though I have searched and read the fast dormancy thread, It didn't sound like the same symptoms I was having. You hit the nail on the head with your description. I guess I will see if disabling it fixes my problem.
However, I thought AT&T had fast dormancy enabled because the Iphone has it....?
P.S.
intruda119 said:
Search is a beautiful feature. You should try it, the answer is there
Click to expand...
Click to collapse
This is so not helpful!!!!!!!

When I enter the code *#*#9900#*#* to disable fast dormancy it takes me to the menu for it no problem. Then when I press the button for disable fast dormancy it turns blue so I know that I've pressed it but nothing else happens. Is this normal or am I doing something wrong? Do you need to be rooted?

seivad17 said:
I am so glad you asked. I have had the same problem and even though I have searched and read the fast dormancy thread, It didn't sound like the same symptoms I was having. You hit the nail on the head with your description. I guess I will see if disabling it fixes my problem.
However, I thought AT&T had fast dormancy enabled because the Iphone has it....?
P.S.
This is so not helpful!!!!!!!
Click to expand...
Click to collapse
I am on AT&T too in NYC. And have this exact problem, and disabling fast dormancy does not help.
Agree with you on your second point too.

I'm now around 15 hours into the 'fast thing' being disabled... and so far, so good. If it works for the rest of the day, I can declare that my phone is fixed , but it's quite sad that it's not working for the other chaps...
I noticed I had to reboot... Maybe you haven't rebooted?
Also, someone mentioned on another thread that when they rebooted, the setting went back to Enabled. Carrier stuff forcing it to enabled maybe?

Cralis said:
I'm now around 15 hours into the 'fast thing' being disabled... and so far, so good. If it works for the rest of the day, I can declare that my phone is fixed , but it's quite sad that it's not working for the other chaps...
I noticed I had to reboot... Maybe you haven't rebooted?
Also, someone mentioned on another thread that when they rebooted, the setting went back to Enabled. Carrier stuff forcing it to enabled maybe?
Click to expand...
Click to collapse
I rebooted multiple times, and even pulled the battery out a few times. I also tried a different SIM card. I even put the phone inside a pentagram and read some passages from some books. Nothing is helping. My provider AT&T is not forcing fast dormancy, the settings stick. But the problem does not go away.

Is this issue affecting a large group, or is it an isolated problem?

Cralis said:
I'm now around 15 hours into the 'fast thing' being disabled... and so far, so good. If it works for the rest of the day, I can declare that my phone is fixed , but it's quite sad that it's not working for the other chaps...
I noticed I had to reboot... Maybe you haven't rebooted?
Also, someone mentioned on another thread that when they rebooted, the setting went back to Enabled. Carrier stuff forcing it to enabled maybe?
Click to expand...
Click to collapse
are you root or not?if not then after reboot everything goes to factory state "fast dormancy enabled"
Sent from my GT-I9100 using Tapatalk

afilopou said:
are you root or not?if not then after reboot everything goes to factory state "fast dormancy enabled"
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
i am not rooted, and that setting sticks just fine, but does not fix the problem.

I'm on AT&T in ATL. I haven't been out and about yet to see if it has worked (never had a problem at the house). Even if it doesn't, maybe the KF1 2.3.4 firmware will fix it when it comes out.

Related

XPERIA X10 Wi-Fi Problem!

I have a very apparent problem on my phone similar to the Iphone 4 problem but only with Wi-Fi. It's very minor compared to Iphone 4's recent problem (which was fix not too long ago..). While holding the phone in landscape mode and having your left (or right) hand on top the phone reduces the frequency of Wi-Fi and utterly disconnects. I have this problem in my room because my router is 3 floors down, it isn't the greatest reception but it works. So in summary when Wi-Fi is 1-2 bars, holding you hand atop the phone disconnects or lowers your Wi-Fi reception. This is a piss off... Either someone can fix this, or we need to complain to Sony ****ersson about this problem.
or move your router one floor up...
No, thats not something im going to do, the iPhone got a fix, why cant we?
Sent from my X10a using XDA App
@zephyrix i agree with you or better buy wifi antenna booster..... solve the problem...
That's not a problem, its simply because you are far away from the router, when it happens to you when you are at closed range, come and talk about it.
and cleary you don't know the real issue the iphone had...
Sent from my X10i using XDA App
+1 mezo9090.. it's a mobile phone.. the receiver won't be as strong as a PC Wifi receiver.. you could get an booster, or a better router..
mezo9090 said:
That's not a problem, its simply because you are far away from the router
Click to expand...
Click to collapse
+2, and agree with junexyz about some kind of booster.
egyptshun said:
No, thats not something im going to do, the iPhone got a fix, why cant we?
Sent from my X10a using XDA App
Click to expand...
Click to collapse
No sir, the iphone did NOT get a fix.
Fuzalert2k said:
No sir, the iphone did NOT get a fix.
Click to expand...
Click to collapse
Sure they did, Stevei boy gave everyone a free rubber band.
ClintonH said:
Sure they did, Stevei boy gave everyone a free rubber band.
Click to expand...
Click to collapse
not just any rubber band its an iBand!
someone should do a gfx for that or at least copyrite the name lol
i have no problem with the Wi-Fi
works as it should...great
I Think I have a WiFi problem as mine fails to turn on constantly. It will only start after I freshly boot it, then it turns off after about 15 minutes and is unable to start again until I power off, and back on.
If I go to the settings menu, wireless controls and tap to turn on WiFi it shows "Turning on..." for roughly 15-20 seconds then says "Unable to start WiFi"
This happened before and after I rooted with R2BA023 Firmware.
Anyone else encounter anything similar?
Reeonimus said:
I Think I have a WiFi problem as mine fails to turn on constantly. It will only start after I freshly boot it, then it turns off after about 15 minutes and is unable to start again until I power off, and back on.
If I go to the settings menu, wireless controls and tap to turn on WiFi it shows "Turning on..." for roughly 15-20 seconds then says "Unable to start WiFi"
This happened before and after I rooted with R2BA023 Firmware.
Anyone else encounter anything similar?
Click to expand...
Click to collapse
Hi Reeonimus - I just finished rooting my x10a from Rogers and I can't connect to my wifi at work, it was working before, so now I have to figure this one out.
I will see if I have the same problem at home tonight, will keep you posted
If you were having problems before, maybe your wifi in the phone is the problem
did you connect to wifi when you first received it? before doing anything to it
There is wifi patch for people who rooted the phone. Go back to the same rooting thread and look at the 4th post.
kyrotech said:
Hi Reeonimus - I just finished rooting my x10a from Rogers and I can't connect to my wifi at work, it was working before, so now I have to figure this one out.
I will see if I have the same problem at home tonight, will keep you posted
If you were having problems before, maybe your wifi in the phone is the problem
did you connect to wifi when you first received it? before doing anything to it
Click to expand...
Click to collapse
well I tried it last night and it connected perfectly at home.
I'm going to have to figure this one out
home is using WEP-Personal and so is my office.
but at the office it gives me a "Obtaining address" but just stops there.
I have full signal strength, but unsuccessful
It was connecting before the root
Patch file : I just installed it and it didn't fix anything, if anything it actually made it worse I think
What does that WiFi patch do?
And has anyone gotten WPA2 enterprise, or PEAP working? I'll need that for uni...
I came across this: http://pboos.ch/wordpress/2009/04/android-using-wpa2-enterprise/
kyrotech said:
well I tried it last night and it connected perfectly at home.
I'm going to have to figure this one out
home is using WEP-Personal and so is my office.
but at the office it gives me a "Obtaining address" but just stops there.
I have full signal strength, but unsuccessful
It was connecting before the root
Patch file : I just installed it and it didn't fix anything, if anything it actually made it worse I think
Click to expand...
Click to collapse
I barely used the phone before I rooted so I don't know if the problem was there before. The bluetooth also had problems turning on.
However I reset the phone to factory settings and returned it for a new one. Then I realized that resetting it only reset the apps and everything, it was still on the R2BA023 firmware. They took it back and gave me a new one because they didn't notice though.
Rooted the new one and have had no problems since.
omgsigh said:
There is wifi patch for people who rooted the phone. Go back to the same rooting thread and look at the 4th post.
Click to expand...
Click to collapse
Hi guys, I'm an AT&T user on 1.6. I am looking for the wi-fi patch, as my wi-fi drops off with my cellular reception. Will this patch fix this problem? If you can point me to the rght direction, I would appreciate it. Trying to search but it appears search is down for the moment. Thanks
Screw it. I'm ready to jump to 2.1, since AT&T doesn't look like they are going to be rolling this out. Does 2.1 still have this wi-fi issue?
coughee, they have a stock 2.1 out now, just use the search to root it. have you checked for seus updates?? lately?

T-Mobile Data

Is anyone else's totally sucking?? It always says either H, or 3G, but no data goes through. The "upload" arrow will light up, but not the "download" one... I also think it's killing my battery since it's constantly searching for a signal for checking e-mail and stuff? Just wondering if anyone else is having this problem or it's my phone? I'm outside of Chicago....
Same here. Someone I work with has the sgs4g and suffers the same problem.
Sent from my GT-I9000 using XDA Premium App
Same problem down here in dallas tx i only really started noticing this with kb5 modem, i recently switched back to the KA6 modem. The problem is persistent but no where near as bad as it was on KB5
Having same issue here... went to Tmobile and they told me this is not a common problem. But the forums are littered with people having the same problem... found 1 rom that kinda manages it well. Axora
Sent from my SGH-T959 using XDA App
hmmm weird. I didn't really have a problem until a few days ago, but I'm glad to know it's not just me
I think I figured out when the data drops. The phone will lag to the point of inoperability, then the phone for some reason has trouble reconnecting to the tower. the only thing I have found to fix this is a factory data reset. I have been lucky enough to reboot in airplane mode sometimes which helped once or twice. Or to reload a rom. I just dont know how to fix it? I had my phone warranty replaced due to this issue and it still remains on new phone. I am somwhat pissed myself
crxforya said:
I think I figured out when the data drops. The phone will lag to the point of inoperability, then the phone for some reason has trouble reconnecting to the tower. the only thing I have found to fix this is a factory data reset. I have been lucky enough to reboot in airplane mode sometimes which helped once or twice. Or to reload a rom. I just dont know how to fix it? I had my phone warranty replaced due to this issue and it still remains on new phone. I am somwhat pissed myself
Click to expand...
Click to collapse
Happens to me randomly specially when searching in Map app. Phone starts lagging and I have to reboot. After reboot it shows No entry like sign in status bar. Nothing works, I tried rebooting, reinstalling same rom, new rom, new modem. What works is take out battery and reinsert it. Thought I got a bad phone, but now it seems others have this issue too?
Im just south of chicago and I usually have to download my apps 2 or 3 times to actually get them installed. I noticed that after you choose to download and it spits you back out in to the menu. Reclick the app you just installed if there isno statusbar you are not trully downloading it.
Sent from my SGH-T959 using XDA Premium App
JediDru said:
Im just south of chicago and I usually have to download my apps 2 or 3 times to actually get them installed. I noticed that after you choose to download and it spits you back out in to the menu. Reclick the app you just installed if there isno statusbar you are not trully downloading it.
Sent from my SGH-T959 using XDA Premium App
Click to expand...
Click to collapse
Same here. The market is a pain with this data issue.
Sent from my GT-I9000 using XDA Premium App
I've been having problems with keeping gchat logged in. Constantly drops out and says either I'm not online or the other person is not online. My wife has the same problem with her vibrant.
In addition my GPS has been extra sucky lately, went from being able to lock 8 inside to usually not locking at all. Nothing I've tried has fixed it, but then randomly it'll work just fine. I can't reliably reproduce the problem.
deadpass said:
I've been having problems with keeping gchat logged in. Constantly drops out and says either I'm not online or the other person is not online. My wife has the same problem with her vibrant.
In addition my GPS has been extra sucky lately, went from being able to lock 8 inside to usually not locking at all. Nothing I've tried has fixed it, but then randomly it'll work just fine. I can't reliably reproduce the problem.
Click to expand...
Click to collapse
This is the second vibrant that I have had this problem on, So I want to say software, unless I got 2 phones with the same problem. The EDT gps fix makes my gps lovely when I have a data connection. I know that heathen has also made a flashable data fix which would at least stop from having to do a data reset, and reinstalling all apps. Unfortunately the data fix is rom specific and not a universal deal. Anybody with more experience know why many vibrants have this intermittent problem???
Since I unrooted I have had no data drops, but cannot fully unlock the potential of the device, has anyone heard if a way to maintain stable data thru root?
Thanks
Sent from my SGH-T959 using XDA Premium App
I kinda think I got the same thing goin on here. The only time I really notice it is in the market and usually only when doing updates to apps. Can't really say that DLing new apps has an issue tho.
I highly recommend CM7 .....I try every new rom and always come back to it. Just a thought haha
crazy25000 said:
I highly recommend CM7 .....I try every new rom and always come back to it. Just a thought haha
Click to expand...
Click to collapse
Just tried it (cm7) and data dropped in 24 hrs. I give up, I'm going to switch to a verizon based phone. Ive never had a problem rooting my g1 or mytouch with data. If anyone knows a fix I would be very interested in understanding the problem.
Data worked for a month straight un-rooted !!!!
Thanks
Did you try out different modems at all?

Galaxy S III Wifi Issue

Hey guys!
I'm not sure if this is my router problem, or my phone, but most likely my phone.
The wi-fi keeps continue to connect, and disconnect.
Here is the thing. When I bought the phone brand new, my phone behaved normal regarding the wifi, but when I flashed to a XXLF2, and using Checkrom with Siyah kernel, the wifi kept continue connect/disconnect all the time, so I gave another shot just reflashed everything to stock of XXLF2, still same problem.
Now, yesterday, I was flashing a new rom XXLF6, and then Omega rom, the wifi problem was still the same, so I gave it another try and just flashing the stock XXLF6, but the problem didn't either went away. I tried Ninphetamine kernel didn't help much either.
Anyone know what's going on??? You think it's hardware issue here, or something with the rom?
Hope someone could please help me out!
Thanks a lot!
Hi,
I not have the exact answer to you, but I think it is a hardware issue!! I have 2 router in my house (with the same ssid) with my SGS2 there is never problems when I cross the zones, it connects straight away to the other router. BUT with SGS3 it is a pain in the a..... I often need to turn on and off wi-fi several times before it can connect!!!! I think the 2 identical router confuse the SGS3....but not the SGS2 or my Tab. If there is only 1 router it connects straight away......
Yeah! That is actually what I was thinking too. It might be the hardware fault! I'm going to contact Samsung tomorrow, and see what's going on!
I have the exact same prob really annoying,but wifi driver is in kernel.I sometimes get "error bad connection " message.
Doesn't matter what kernel I use though.
Ciex said:
Yeah! That is actually what I was thinking too. It might be the hardware fault! I'm going to contact Samsung tomorrow, and see what's going on!
Click to expand...
Click to collapse
I allready got my first SGS3 to service cause of the Wi-fi issue. But they told me that they tested it to be good. Second time they changed the phone - but problem still there. Also with my blue SGS3 that i just got!!
zodiaxe66 said:
I have the exact same prob really annoying,but wifi driver is in kernel.I sometimes get "error bad connection " message.
Doesn't matter what kernel I use though.
Click to expand...
Click to collapse
Yeah! That is exactly same problem I have! Thought it could be kernel fault at the beginning, but it's not!
EDIT: Guys I think I found the solution! You got to click the phone *"0011*, then menu, wifi, and off button!
Now it's working like charm!
Ciex said:
Yeah! That is exactly same problem I have! Thought it could be kernel fault at the beginning, but it's not!
EDIT: Guys I think I found the solution! You got to click the phone *"0011*, then menu, wifi, and off button!
Now it's working like charm!
Click to expand...
Click to collapse
Mine is constantly disconnecting as well. Gonna try your solution.
Edit: Cheers mate. I was trying to watch Google I/O live on YouTube and the S3 was constantly reconnecting to my wifi network. So far so good, it's not happening anymore.
Ciex said:
Yeah! That is exactly same problem I have! Thought it could be kernel fault at the beginning, but it's not!
EDIT: Guys I think I found the solution! You got to click the phone *"0011*, then menu, wifi, and off button!
Now it's working like charm!
Click to expand...
Click to collapse
You are just switching power saving off for WiFi
Sent from my GT-I9300 using xda premium
*"1100* ???????
How do u put in a quotation mark in dialer?
No idea what u guys are talking about
This turns of power safe *#*#232338#*#*
Hey sorry, it's actually *#0011* No quotation mark here
Are you guys able to keep Power save mode OFF?
Seems I have to go back to *#0011# all the time to set it back to OFF (comes back on very often it seems...)
Gabeloooooo said:
Are you guys able to keep Power save mode OFF?
Seems I have to go back to *#0011# all the time to set it back to OFF (comes back on very often it seems...)
Click to expand...
Click to collapse
Yep, I can confirm that the option doesn't stay selected.
Sent from my GT-I9300 using xda premium
Do you guys Have ram booster or any other app the like? Ram optimización turns wifi off...
No, but I do hit Clean Memory in the task manager quite often (because presto library is a piece of junk!) maybe that turns it off. I'll test tonight...
I'm also having the same issue, disconnecting, but appears connected in the Wifi settings. I have to go in and turn of power saving mode, but it comes back on after reboot.
Logicalstep
I had this wifi disconnect reconnect issue at work, but never happens at home. I initially thought it was some app I installed, I removed them and still happens at work, but not at home. All the phone settings mentioned here didn't make a difference.
I don't change anything on my phone, so I chuck it to incompatibility, and not an issue with my phone or it's settings.
Home Netgear WNDR3300 pretty much default settings.
The new firmware update XXLFB seems to update radio firmware and kernel. Maybe that will fix the problem.
Has anyone tried this?
Flash the rom and see if it helps.
Sensamic said:
The new firmware update XXLFB seems to update radio firmware and kernel. Maybe that will fix the problem.
Has anyone tried this?
Flash the rom and see if it helps.
Click to expand...
Click to collapse
What radio/modem version did you end up with, my UBLF2 (TTT) stayed the same after the update applied.
I had issues at work. But not at home.
Today I told it to forget my B/G radio and to connect to the N radio. No disconnects, none..
No changes made to the phone at all..
2 phones - only 1 with wifi issues
Hi, noob here. I have been following this issue on androidforums.com (same user name) but since the "fix" came from this site I thought I'd share my relevant info here as well.
My husband and I received 2 Verizon SIII's (32GB) this weekend. Mine works great. His, however, has the wifi disconnect issue. The *#0011# is only a temporary fix for him.
So, for what it's worth, it's not likely to be a router problem, since 1 phone has no wifi issues and the other does.
We talked to Verizon at lunch today and they were interested in the problem and will be calling us at home this evening, with a Samsung rep. I'll post more once we've heard from them. For now though, Samsung does not have it listed as a "known" issue since there haven't been enough reports on this bug.

Phone losing Network connection randomly during call

Well I had this phone for a month now, and it was fine all along until a couple days back, what happens is during a call randomly (once a day or so) the phone loses the network and the call gets disconnected, then it comes back after a few seconds. The 1st time this happened, it didn't come back and even switching to airplane mode didn't work, I had to reboot. Now I bought this phone used and I don't recall making any changes. I was on LPX modem initially then changed to kh3 so reverted back to lpx but the problem still persists. Even tried cleaning the sim card and contacts. Is this a hardware issue or a software issue or most likely a network issue? Considering it worked fine for almost a month.
Does this happen to some of y'all?
Location: Goa
< Thanks button to the left.
postfatal said:
Location: Goa
< Thanks button to the left.
Click to expand...
Click to collapse
Hmmm, what you trying to say here? The network is at fault? This didn't happen on my earlier i9003. And this does happen once almost on a daily basis.
Had similar problem few times... disappeared after random rom changes. Also could be something with usb port (this broken bastard even changed my phone state to driving mode while conversating, in result my phone turned speaker on and was screaming to my ear in public places...) If it connects to network properly everytime after reboot I would say its hardware or software problem - that means, something that you could handle directly or indirectly.
Sent from my Sgs2 via Xda Premium. Helped? Click thanks button!
socah said:
Had similar problem few times... disappeared after random rom changes. Also could be something with usb port (this broken bastard even changed my phone state to driving mode while conversating, in result my phone turned speaker on and was screaming to my ear in public places...) If it connects to network properly everytime after reboot I would say its hardware or software problem - that means, something that you could handle directly or indirectly.
Sent from my Sgs2 via Xda Premium. Helped? Click thanks button!
Click to expand...
Click to collapse
Well now it just drops the network altogether only when there is an active call. It doesn't/hasn't happened to me while using data or anything like that, just that it drops the call along with mobile network and reconnects after like 5 seconds. Quite annoying this. What you have mentioned is some contact in your usb port (dirt etc) causing the phone to jump to driving mode. Were you having similar network issues?
Poland.
Sent from my Sgs2 via Xda Premium. Helped? Click thanks button!
Any other users having this similar issue?
Well this happened again today, lost network & came back in around 8-10 secs, very annoying and only when a phone call is being made or during. Funnily it only happens once a day.
mzone1510 said:
Well this happened again today, lost network & came back in around 8-10 secs, very annoying and only when a phone call is being made or during. Funnily it only happens once a day.
Click to expand...
Click to collapse
Same problem here was on modem LPS changed to LQ6 but nothing changed.... does anybody know the reason of this problem?
Hawkeye1103 said:
Same problem here was on modem LPS changed to LQ6 but nothing changed.... does anybody know the reason of this problem?
Click to expand...
Click to collapse
Well happened again, this time not during a call but when it was using mobile data (3G), a vodafone guy called me & told me to change my sim to see if it solves the problem, for now I set my phone to GSM mode only and not WCDMA, will observe & see it it makes a difference.
mzone1510 said:
Well happened again, this time not during a call but when it was using mobile data (3G), a vodafone guy called me & told me to change my sim to see if it solves the problem, for now I set my phone to GSM mode only and not WCDMA, will observe & see it it makes a difference.
Click to expand...
Click to collapse
Could it be an issue from Siyah ... i also have siyah but my version is 3.3.3d
Hawkeye1103 said:
Could it be an issue from Siyah ... i also have siyah but my version is 3.3.3d
Click to expand...
Click to collapse
Well I doubt it could be siyah, I was using it for a month and it was fine all that while. This started happening a week back.
Hawkeye1103 said:
Could it be an issue from Siyah ... i also have siyah but my version is 3.3.3d
Click to expand...
Click to collapse
Were you having this problem on GB too?
never had it on GB and on ICS just had it recently... nothing fancy... fully wiped my phone and rewritten LPW hope it will be better now
Hawkeye1103 said:
never had it on GB and on ICS just had it recently... nothing fancy... fully wiped my phone and rewritten LPW hope it will be better now
Click to expand...
Click to collapse
Funny how it came up all of a sudden, I pray it's not a hardware fault though, let me know how the reflash works for you. Meanwhile I'll try CM9 but I read in the thread that many people are having this issue on it, so it just might make it worse!
mzone1510 said:
Funny how it came up all of a sudden, I pray it's not a hardware fault though, let me know how the reflash works for you. Meanwhile I'll try CM9 but I read in the thread that many people are having this issue on it, so it just might make it worse!
Click to expand...
Click to collapse
Don't think it's hardware related... sunt started after flashing 4.0.4 .... did a full wipe and reinstalled lpw => speed mod => slim ics => siyah 3.3.3d hope everything is good. flashed this morning. will wait a few days
I've had the exact same problem, and can't ever recall it happenning on gingerbread, Only noticed it on CM9. Looks like an ICS sandwich bug, it talks to the hardware differently so this would explain why gingerbread doesn't seem to have this problem, If you still have these issues maybe try a gingerbread modem, and see how that goes. They are backwards compatiable with ICS.
Well I went a day without this happening to me on CM9, I'll try it out for another day or so to check.
mzone1510 said:
Well I went a day without this happening to me on CM9, I'll try it out for another day or so to check.
Click to expand...
Click to collapse
Didn't have the problem... so it's software related... just need a good old wipe and rewrite of the soft good as new
Hawkeye1103 said:
Didn't have the problem... so it's software related... just need a good old wipe and rewrite of the soft good as new
Click to expand...
Click to collapse
Has your problem also disappeared?

Phone loses signal and cannot reconnect to network

Hi guys,
I wanted to post this in the development thread but since I'm new in here this wouldn't happen
So, here's the problem - my Samsung I9100 phone loses signal and cannot reconnect to the network unless rebooted. You can see the kernel and ROM state from the screenshot.
Every now and then the phone loses signal and unsuccessfully tries to reconnect to the network. I cannot make outgoing calls but am able to receive incoming (but only sometimes, in some cases it wouldn't receive incoming neither). Only a reboot solves the issue but this loss of signal happens at least several times a day and this is quite irritating.
Other problem is when the phone is at a state of no signal, it writes some logs in the system partition in \data\logs which quickly take up all the free memory.
I've been using this ROM since v 3.7. I've updated it twice to get to v 3.91. Through all the releases the issue persisted. I haven't had these problems with other ROMs.
I read somewhere in here that this might be a problem with misplaced or worn-out SIM card. So I put the same SIM in my old Nokia phone and tested for several days - no loss of signal observed in that period.
So any help or advise would be appreciated.
Could this be a ROM issue or a hardware problem? Maybe a kernel problem?
Would be glad if more advanced users give some ideas.
That's it for now, if you got any questions regarding the problem or I missed some information let me know.
Cheers!
Could it be this http://forum.xda-developers.com/showthread.php?t=2162374&highlight=signal+loss
or this http://forum.xda-developers.com/showthread.php?t=2178090&highlight=signal+loss
Have you tried other modem firmwares?
OK, seems like the easiest solution is to just change the modem...
I changed it to XXKI4 from this thread http://forum.xda-developers.com/showthread.php?t=1277593
I'm starting to monitor whether the problem will reoccur.....
Hi have you solved the problem, as I'm having the same problem ?
hi :cyclops:
when I changed the modem to XXKI4 I experienced the same issue almost immediately after reboot....
then I flashed XXLPX (on random), rebooted again. Since then no problems observed, signal strength is high and 3G speeds are OK....
will keep monitoring for several more days and update you on the issue (I'd be really glad if this simple fix solves it )
the_psycho said:
hi :cyclops:
when I changed the modem to XXKI4 I experienced the same issue almost immediately after reboot....
then I flashed XXLPX (on random), rebooted again. Since then no problems observed, signal strength is high and 3G speeds are OK....
will keep monitoring for several more days and update you on the issue (I'd be really glad if this simple fix solves it )
Click to expand...
Click to collapse
Hey, having the same issue... Anything new with this modem?
I've got signal lost almost every day, sometimes few times a day, every few days the signal drops and not back (when I'm clicking on 'mobile networks' I've got the message: "insert sim card - insert sim card to access network services") and only reboot fix this problem (airplane does nothing).
Tried to clean the SIM card, the sim housing, Its not happening in specific place...
I know people who have this issue and uses a different ROMs/Kernels/Modems ROOT/NO ROOT...heres a little list:
Im using right now STOCK 4.0.3 LPG, modem: LQ6 with Siyah kernel 3.4.1
Others using other stock 4.0.3 / 4.0.4 with modems: JHLP9, LPS, ...
Someone mention [not here] about lpx modem that fix it...
If someone else tried it would be great if you share.
thanks!
I had this issue and replaced my battery with another genuine original battery which fixed it totally.
awojtas said:
I had this issue and replaced my battery with another genuine original battery which fixed it totally.
Click to expand...
Click to collapse
Well, sounds weird...I doubt if its the battery... how long you using the new battery? sometimes its just comes and goes....
Signal lost - log screenshot
Ok, I took a screenshot from alogcat at the same time I've lost the signal... (I export the whole log but seems this app is not that smart and its export only after the signal lost so its irrelevant)
At screenshot - only the 'error messages'
Can anyone analyze this error messages? why is it happens?
Suddenly the signal lost sometimes while call sometimes not, at this time I had to reset the device to get the signal back (its happens once per few days), sometimes its lost and back after ~1 minute...
Don't know if this device has a problem (all the problems that i've heard are from this device, no matter what modem each one use) or its something else....
Would like for some help with this log, and the guy who tried the LPX modem - if its works fine now....
Thanks!
no, it doesn't work.
was OK for a few days then the problem started again.
1-2 times a day I have to reboot due to signal loss.
and the irritating part is that while with no signal the battery drains a lot and the don't-know-what-are-these-for logs keep on generating, filling the whole internal memory......
will continue to dig for a solution....
the_psycho said:
no, it doesn't work.
was OK for a few days then the problem started again.
1-2 times a day I have to reboot due to signal loss.
and the irritating part is that while with no signal the battery drains a lot and the don't-know-what-are-these-for logs keep on generating, filling the whole internal memory......
will continue to dig for a solution....
Click to expand...
Click to collapse
Do you have a roaming enable?
Here I suspect its the reason for losing the signal, maybe its the problem...
Did you tried your SIM with other device (not S2)?
PsyOr said:
Do you have a roaming enable?
Here I suspect its the reason for losing the signal, maybe its the problem...
Did you tried your SIM with other device (not S2)?
Click to expand...
Click to collapse
no, roaming is not enabled and I have tried using the SIM on another phone with no problems
one strange thing is that the disconnection happens absolutely random... at first it happened several times a day.. at recent times it is more rarely - every few days.. disconnections are not related to any location or certain conditions of phone usage... simply no idea
soon I will change the ROM (respectively the kernel as well) and see if this continues
Thats weird...a lot of people with other devices have this issue...at first I thought its only on S2 (modem/kernel/hardware) then I thought its a infrastructure issues in our area.... donno mate....
the_psycho said:
no, roaming is not enabled and I have tried using the SIM on another phone with no problems
one strange thing is that the disconnection happens absolutely random... at first it happened several times a day.. at recent times it is more rarely - every few days.. disconnections are not related to any location or certain conditions of phone usage... simply no idea
soon I will change the ROM (respectively the kernel as well) and see if this continues
Click to expand...
Click to collapse
Need help with this also, same issue
posting an update on the situation...
I changed the ROM with full wipe of data as well as internal memory format. Installed the latest 10.1.3 stable ROM from cyanogen - this means different kernel, different radio and a stable ROM.
And it goes on.... if I had money right now I'd just change the phone cos I'm getting sick of this ****
Please HELP
Hi all
PLS help, I have NO signal network and wifi. I bought one i9100 with 4.1.2 (have not lost IMEI- I have it) and can´t have network signal and if I want on my wifi, there is problem it can be open, always icon wifi start and stop in one second. I have nit beckuped EFS, phone was rooted last man from who I have bought.
Now I have Stock I9100XWLSD_I9100VDCLSC_I9100BULS1_HOME.tar
Thanks
the_psycho said:
no, roaming is not enabled and I have tried using the SIM on another phone with no problems
one strange thing is that the disconnection happens absolutely random... at first it happened several times a day.. at recent times it is more rarely - every few days.. disconnections are not related to any location or certain conditions of phone usage... simply no idea
soon I will change the ROM (respectively the kernel as well) and see if this continues
Click to expand...
Click to collapse
As per experience this is also due to battery getting weak. Monitor the % you get this problem the most. If it arises around tje same % level then its battery. Also check your battery by rotating it on table and note if it rotats easily and there is any bump in the battery
Sent from my GT-I9100 using xda premium
---------- Post added at 06:43 AM ---------- Previous post was at 06:42 AM ----------
Paul Koty said:
Hi all
PLS help, I have NO signal network and wifi. I bought one i9100 with 4.1.2 (have not lost IMEI- I have it) and can´t have network signal and if I want on my wifi, there is problem it can be open, always icon wifi start and stop in one second. I have nit beckuped EFS, phone was rooted last man from who I have bought.
Now I have Stock I9100XWLSD_I9100VDCLSC_I9100BULS1_HOME.tar
Thanks
Click to expand...
Click to collapse
This is fault of efs in most cases.
Try jelly snap rom which i have most stable and see if it resolves the issue
Otherwise search how to repair efs if pissible
Sent from my GT-I9100 using xda premium

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