Can't regain signal without restarting - Samsung Galaxy S (4G Model)

Completely stock phone... I never messed with it from day 1.
So here's the thing... everytime I take a subway and after the get out from underground the phone never regains the 4g data icons... the signals are there but it doesnt let me browse the web or use any apps that require a data signal.
Restarting the phone solves the problem...
But at work everytime I go to the basement and come out.. I completely lose the signal and do not automatically regain it once I'm out on the street... this made me miss many calls and incoming texts... I also switched my sum card 2 weeks ago for the newest 4g Sims... it helped for about 2 days.. but now same thing happens all over again..
Any tips?
sent from stock galaxy s 4G

Try toggling flight mode on then back off.
Sent from my SGH-T959V using xda premium

Did that... it rarely works... but either way... its not good when a phone can't regain a signal... because its in my jeans the whole time... and I get a lot of missed calls due to that... its horrible.
Does anyone else experience this problem with their galaxy s?
sent from stock galaxy s 4G

I gave it happen too. Annoying.
Sent from my SGH-T959V using XDA App

If its completely stock I would call in the warranty.
Sent from my SGH-T959V using xda premium

If you've always been using stock, then you should try your hand at flashing GB.
Try out some new modems too. It might solve your problem.

Related

Network connection problems?

Hi all,
A few days ago I noticed my data connection lags and it takes a while until tha up and down arrow start blinking under the H indicator.
Sometimes it is fine.
Also several times I noticed in an are with 4 bars my connection would drop completely, shie no bars and show a little x instead and then a minute or two later it would come back. Tried factory reset, did not help...
Does anybody know what is going on?
I have done the true perma root and unlock as posted in the development sticky.
I also removed some bloatware which do not come back when I do a factory restore. Not sure if that matters though or of it is related.
Sent from my HTC Glacier using XDA App
Are you running the stock rom? I'm guessing so. If you went through and deleted a bunch of stuff you very easily could have deleted something you didn't want to.
I would suggest grabbing the stock nandroid restore from the thread in the development section and going back to a clean install. See if that helps.
Sent from my HTC Glacier using XDA App
im not rooted and i have the same issues. Going from full bars to nothing and then it lights back up. I assume it has something to do with the tower its connected to
Sometimes I only get phone call reception and no data,I call T-Mobile and they say I'm not in a 4g area,but for the past months I've been here and get the 4g full signal..this only happens like twice a month.its a big problem with their towers.
Sent from my HTC Glacier using XDA App
I too have this annoying problem
Sent from my HTC Glacier using XDA Premium App
Happens to me too
Sent from my HTC Glacier using XDA Premium App
I'm sure it's a radio issue. Happens to mine and my roommates MT4Gs. And since we don't have another radio, we're kind of SOL there.
I've had my mt4g since they dropped, and it's only started doing this to me recently... when it happens, I go to the APN's and reset to default... it seeeeeeeeems to work (for a short time), but then it goes right back to sucking...
You can also just toggle airplane mode. Will bring speeds back up for a short time.
Sent from my HTC Glacier using XDA App

[Q] No signal

For the past couple of days around the same time 10pm I have lost my signal and it doesn't reappear until the morning, or at least that's what happened this morning. I'm running Apex 10 and the 5.1.2 of Talon. It's very frustrating because I can't use the damn thing as a phone and I'm not even sure if the signal will come back. This just randomly started happening what could be the problem??
Thanks
Solar Flare?
Sent from my Samsung SGH-I897 using XDA Premium
Its a ported rom. Get one of captivate leaks.
Sent from my SAMSUNG-SGH-I897 using XDA App
Tower maintenance?
The last time I saw that on my phone was when at&t was back hauling a tower. I'd give them a call and see
Sent from my SAMSUNG-SGH-I897 using xda premium
Thanks, the fact that Apex is an i9000 rom seemed to be the problem, because my signal went out again tonight. I flashed Fasty III to my phone and magically I had a phone signal! Thanks again, really appreciate it!

[Q] wierd problem

on my infuse when i am in a edge only coverage i get the following message sim not allowed mm#3 cant make calls no internet nothing when i get back to h+ coverage message goes away and i can make calls and everything else any ideas
have this problem across multiple roms
oh yeah took sim and put it in another phone and dont get the message everything worked took a friends sim put it in my infuse same problem
Are you running stock or custom?
Sent from my SAMSUNG-SGH-I997 using XDA
omnimanx1 said:
Are you running stock or custom?
Sent from my SAMSUNG-SGH-I997 using XDA
Click to expand...
Click to collapse
Was on zeus 6 when it started then went to the leaked lb3 problem still there
Sent from my HTC PH39100 using xda premium
have a customers phone doing the same thing... 100% factory... was never rooted or anything. they lookes at me like i was crazy when i started asking about that stuff lol. dit a backup for them and a hard restore and still having the same problem. tried the customers sim in an i-phone 3gs we have laying around and worked flawlessly... so... 100% factory (always was) with factory hard restore... no luck... what gives i see this problem posted all over the net but no real solutions... I feel bad for this kid he didnt do anything wrong but his parents are pissed lol

Att data down??

Is anyone else having problems with att data services?? I just disconnected from my wifi, and it seems that att data is not working, can't browse the web
No. But I'm in Texas. Depends on the tower you are on.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
Mine does the same thing. Usually if I wait just a little bit, it will come on. Never had this problem on GB. Thinking about going back until the new JB ROM gets up and running a little longer. Almost there!
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
jondroid2 said:
Mine does the same thing. Usually if I wait just a little bit, it will come on. Never had this problem on GB. Thinking about going back until the new JB ROM gets up and running a little longer. Almost there!
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
Click to expand...
Click to collapse
Mines stock and rooted and will drop the data every once in a while even in the middle of downtown dallas. I just toggle data off then back on and it works.. I get the same issue with GPS... on 2.3.6

Any idea what's causing this

It's like my radio sleeps sometimes. This screen shot shows no data. Once I wake my phone data reconnects. I don't think this is caused by no signal.
Sent from my SCH-I535 using xda premium
Looks like you live in a so so signal area, the closer it is to green then the greater your signal is. I would think that's an issue with the towers in your area cuz as you know the signal fluctuates often even while sleep.
Sent from my SCH-I535 using xda app-developers app
Thanks. I don't understand why it shows no signal when there was signal. As soon as I woke the phone it reconnected to the tower. There's a delay when it switches from 4g, 3g and 1x....This long area of red was probably the phone stuck in the delay between switching? While trying to submit this post I just lost data in a strong 4G area..... I don't get it.
Sent from my SCH-I535 using xda premium
How often within a day/week does this occur? That's still odd behavior that you lose signal or notice signal degradation while sleeping.
Sent from my SCH-I535 using xda app-developers app
This happens once or twice per day. Seems to happen in areas with less than great signal, that's why I think it is maybe getting stuck in the transition between 3g and 1x. No idea why it stays stuck once I move to an area with better signal.... Seems like the radio is sleeping until I wake the device.
Sent from my SCH-I535 using xda premium
It happened to me before. Try to go to flight/airplane mode and back. It should reset everything. I also sometimes press and hold the home button , then remove all applications and go to ram memory and clear it.
Sent from my DROID RAZR using xda app-developers app
That does work but we should not have to do that in the first place. Hopefully a update will fix the data problems.
Sent from my SCH-I535 using xda premium
Ryno77 said:
This happens once or twice per day. Seems to happen in areas with less than great signal, that's why I think it is maybe getting stuck in the transition between 3g and 1x. No idea why it stays stuck once I move to an area with better signal.... Seems like the radio is sleeping until I wake the device.
Sent from my SCH-I535 using xda premium
Click to expand...
Click to collapse
Are you stock? if no, what ROM are you running? Are you rooted? what apps are installed.
If you have CWM recovery, i would try to wipe cache and reboot, see if it helps at all?? if you don't have much installed, i would say do a full system restore...
one other thing, are you losing data, ie; not getting text and or phone calls? Also, check to see if you have any battery savers checked. Might be just a method of saving battery by shutting off data until it is needed.
EpicMangina said:
Are you stock? if no, what ROM are you running? Are you rooted? what apps are installed.
If you have CWM recovery, i would try to wipe cache and reboot, see if it helps at all?? if you don't have much installed, i would say do a full system restore...
Click to expand...
Click to collapse
I am on stock not even rooted. Phone is a week and a half old.... I am willing to wipe data if you think it would help.
goldsmitht said:
one other thing, are you losing data, ie; not getting text and or phone calls? Also, check to see if you have any battery savers checked. Might be just a method of saving battery by shutting off data until it is needed.
Click to expand...
Click to collapse
As far as I know I am not missing phone calls or texts. Power saver is turned off. I am basically running the phone the way it came brand new (not many apps, no root, no unlock.... Yet).
Thanks for the replies. Any chance a factory reset would help? My mute/vibrate functions in settings do not mute the phone either... Still get audible notifications and phone rings like normal. Unrelated to the data issue but still weird for a new stock phone.
Sent from my SCH-I535 using xda premium
I'm not going to lie. I don't know if it will help or not. But if you are stock and got nothing to lose it would give it a shot. Can't hurt? Also, as others have said, it sounds ds like it could be because of signal strength. A lot of variables though.
Sent from my SCH-I535 using xda app-developers app
Data wipe did not fix the mute problem. I am very annoyed. Will see how my radio acts today after the wipe.
Sent from my SCH-I535 using xda premium
Just found a post on Verizon's forum regarding this problem. Apparently I was right when I said there was a issue when switching from 4g/3g/1x.
51. Re: Galaxy S3 Worst Cell Service Of Any Phone EVER!
Wildman CommunityLeader
Wildman Aug 18, 2012 3:43 PM (in response to BigClyde)
Now before I say this I want to make it clear that I am not representing Verizon or Samsung in any way with this post, I am just updating the users on what I have identified from the test of my device on this reported issue.... So with that said you can take this accordingly..
Ok everyone about the reported connection issues reported, I recently have been able to duplicate the signaling issue reported on my S3 and it appears to be miner for me at the moment but I can say that it is present.. I recently attempted to isolate the bug and I learned that when I placed it in my test rig to monitor the device in the weakest area in my house the software would temporarily powers down the radio for a few seconds that causes the device to loose all connections (Wifi, Bluetooth, 4G and some times also the network connection), this only happens in a weak connection area and it does appear it could be a software related bug with how the radio drivers handles switching the connection from one connection to another.
From the test results this does not appear to be a hardware issue but I do agree that this could be a pain for a user on the border of a 3G and 4G connection because any connection change causes a crash or radio and force restart.
I have reported this to CS and it appears to be a situation that is being looked into and a solution is possibly in the works... Eventho this isnt a major issue for me at this time, I hope to see a update to address this soon.
Click to expand...
Click to collapse
Ryno77 said:
It's like my radio sleeps sometimes. This screen shot shows no data. Once I wake my phone data reconnects. I don't think this is caused by no signal.
Sent from my SCH-I535 using xda premium
Click to expand...
Click to collapse
check any settings you may have done in the "Profiles" option? is that on a option in settings on the stock rom, lol, cant really remember
What a joke. This really irritates me.
Sent from my SCH-I535 using xda premium
This is frustrating. I have lost signal now two times and needed a reboot to get it back. When I did, I was not only losing data, but phone also. I would get this barrage of texts and missed calls.
I am rooted and unlocked, so there in itself could lie a problem, but it comes without warning and the phone appears to be working. Would the SIM card really effect that?
Sent from my rooted SIII

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