Hi,
Sometime today I lost my phone signal on my SG2. I'm not sure exactly at what moment as I first noticed that I had a couple of bars but no 3G when I tried to browse the web. So I restarted the phone but to no avail. Since then I've lost all bars and can't make any calls either.
The only thing I have done today "out of the ordinary" was to connect to the phone using Wifi File Explorer to transfer a file, which I tried to connect to without being on a wifi network by first trying the "Wifi Direct settings" in Settings, which didn't work, and then by tethering by Wifi which worked. Maybe some setting got stuck in the process, but I'm not sure since never checked if it worked right before and after.
If anyone has any idea what could be wrong please let me know, as I am literally without a phone!
I recommend downloading http://www.androidzoom.com/android_applications/communication/no-signal-alert-pro_fyyo.html this will definitely be of benefit to you if your suffering from signal problems, it has been of good use to me.
Check your IMEI is the correct one for your phone .If not restore your backed up EFS folder .
Or try backup data and factory reset as a first step.
jje
Thanks for the quick replies!
The IMEI does not correspond to the one I have written down, though I'm not 100% I what have on my note is the latest IMEI; but how could that change though by itself, if my note is correct??
Also, I just saw something very strange: I turned on my phone and had full bars (no 3G though), and right in front of my eyes all bars dropped, one by one, during the course of 5-6 seconds. Something is VERY off...
Regarding factory reset: my phone is rooted (thanks to XDA!) and I have Tit.backup: can I will my phone still be rooted if I do a factory reset?
Something went probably wrong when rooting it (not neccesarily any errors) and effed up tge EFS folder.
Try to flash back to stock ROM, it might work to restore your.folder.
Sent from my GT-I9100 using xda premium
UPDATE
bruflot said:
Something went probably wrong when rooting it (not neccesarily any errors) and effed up tge EFS folder.
Try to flash back to stock ROM, it might work to restore your.folder.
Click to expand...
Click to collapse
I should have been more clear on that, but I rooted the phone about a month ago and it has worked flawlessly since then, so it couldn't be that.
Anyway, I looked around a little and found this post:
http://androidforums.com/samsung-ga...connectivity-but-no-idea-why.html#post2722784
He seemed to have had the exact same problem that happened to me, so I decided to wait, and sure enough the connection reestablished itself about an hour ago and while I was watching for it, with the signal slowly creeping back up during a couple of minutes, and several hours after I lost it. Very odd.
This surely has to be an Android bug but that only shows up under certain and rare conditions.
To be sure I made a speed test and got 4.84 Mbps/up, 1.19 down, which I guess is fine; I never did one prior to this so I have nothing to compare to.
Again, appreciate the advice!
EDIT: For posterity, I should add that during these hours, even when I briefly apparently had a (non-3G) signal, I had a notification during all this time saying that I could only make emergency call.
I'm having the same issue. No Bars at all most of the time and when I have some, it never connects to 3G, G at most, and can't load any thing at all.
Very frustrating. I have been using Lite'ning rom 6.1 for a few months and had no problems at all until about a week ago.
I flashed back to a stock rom and still having the same issue.
I've also seen the bars drop down one by one in a 5 second window, bizarre!
Anyone find a fix for this? Or could the phone be faulty?
malicedix said:
I'm having the same issue. No Bars at all most of the time and when I have some, it never connects to 3G, G at most, and can't load any thing at all.
Very frustrating. I have been using Lite'ning rom 6.1 for a few months and had no problems at all until about a week ago.
I flashed back to a stock rom and still having the same issue.
I've also seen the bars drop down one by one in a 5 second window, bizarre!
Anyone find a fix for this? Or could the phone be faulty?
Click to expand...
Click to collapse
I was on Lite'ning about 3 weeks ago and actually completely lost signal several times. Reboots and hard resets solved the problem temporarily. I then flashed Batista FH 2.4 with ICS and things were great. I'm now on GingerMod. No issues.
I don't know how it could be kernel related though, especially if you are 100% stock again.
Related
So after rebooting about a week ago on BAMF Remix 1.7 (I think the ROM is irrelevant but just putting it in for information's sake), my 3g/mobile data stopped working. When I go into network settings, the Mobile network option is checked to connect to the internet and under APNs, there is a vzwinternet profile with a green (I'm guessing turned on?) marker.
I've tried various ROMS: BAMF, BAMF Remix, CM7, and even the Gingerbread variations of BAMF as well.
Also I've experimented with all of the radios (every one listed under the obligatory radio thread) and different kernels.
And lastly, I've wiped multiple times every time I've flashed a new ROM and have even formatted my SD card hoping it was some rogue application that disabled it.
So what can I do to bring back 3g/mobile data?
Note: Wifi, calls, and sms will works for me. MMS does not however.
I have the same problem but mine shows after rebooting, than say error when I try browser or anything that has to do with data, But works at times.
*WALK in the WORD*
Mine isn't working at all. Not even after rebooting.
tflogic said:
Mine isn't working at all. Not even after rebooting.
Click to expand...
Click to collapse
How you checked with your Carrier? I'm with Orange UK and my 3g was down for 4 days once due to cell tower maintenance...
Might be worth a call to check!?
Sent from my HTC Desire using XDA Premium App
I suppose that would be the logical thing to do next before I start torching my Thunderbolt.
Thanks!
tflogic said:
I suppose that would be the logical thing to do next before I start torching my Thunderbolt.
Thanks!
Click to expand...
Click to collapse
I almost did exactly the same!
Sent from my HTC Desire using XDA Premium App
This happened to me, exactly as you've stated. I posted here but got no remedy. I tried all the things you've mentioned, reflashing the ROM, raeflashing the radio, etc. Nothing helped.
Finally, I had the idea to restore a recent backup from before I had the problem. THAT worked. I hope it helps you too.
I didn't have a chance to call during the day but I did head over to my friend's house who lives in a different area. She has VZW just as me and she was getting 3G on her blackberry but 3G/mobile data was still unavailable for me.
It's not a coverage issue but on my end.
While lurking around the mobile data settings, there was a profile for VZW under APN settings. Could someone post theirs so I could see if they match with mine? Maybe that's the solution to my problem?
I don't think it's rom dependent. I lost 4g the other day and I have yet to get it back. I have my own theories but the jerk at the VZW store wouldn't let me try my theory. I'm waiting for my usual rep to comeback, she lets me try just about anything I want. The rest are just dicks. I have tried swapping roms, radios, and all but going back stock to fix it. And nothing has brought it back. BTW, have you tried CDMA prl to see if you can get data at all? I can get 3g that way, but when I go into evdo/lte or lte only I lost all data. Also, do you have it in rev A mode under your modem settings?
I had this exact same problem with BAMF remix 1.6.3, to make this story short this is how it eventually got fixed:
Go into settings and do a check for new software.
This will force 3g to cut on. (Note: it may take a few times for the 3g to come on and STAY ON. It took me almost a day doing it about every hour.
Enjoy
Holy crap, that worked. Of all the things I tried and I couldn't get anything. Now LTE is back. You're awesome.
LCSO 9c8 said:
I had this exact same problem with BAMF remix 1.6.3, to make this story short this is how it eventually got fixed:
Go into settings and do a check for new software.
This will force 3g to cut on. (Note: it may take a few times for the 3g to come on and STAY ON. It took me almost a day doing it about every hour.
Enjoy
Click to expand...
Click to collapse
I have to go to work right now but yes it is turning on 3G at the moment but it's only using the up arrow (eg. uploading data but not downloading data). I"m guessing with a couple of more tries it'll eventually lock in.
If this doesn't work on gingerbread, I'll try reverting back to froyo and try it then as well.
1454 said:
Holy crap, that worked. Of all the things I tried and I couldn't get anything. Now LTE is back. You're awesome.
Click to expand...
Click to collapse
Glad I could help.. I spent nearly two hours on the phone with Tier II support and they guy said.. well this is a long shot but try this. Didnt work the first time I tried it so he sent me a new phone but in the time it took to get the new phone, I kept trying and it finally locked in.
Ok, well I thought it worked. Every time I try it, it will give me the 4gLTE indicator, but if I open up anything that uses data it just says no mobile conectivity then after about 5-6 min it stops showing any data. Also, I can still go back to CDMA(PRL) and get 3g. It's just under 4GLTE/evdo and lte only.
BTW, for any other future reference, I started experiencing these issues right after I debloated (uninstalled) the blockbuster app.
1454 said:
Ok, well I thought it worked. Every time I try it, it will give me the 4gLTE indicator, but if I open up anything that uses data it just says no mobile conectivity then after about 5-6 min it stops showing any data. Also, I can still go back to CDMA(PRL) and get 3g. It's just under 4GLTE/evdo and lte only.
BTW, for any other future reference, I started experiencing these issues right after I debloated (uninstalled) the blockbuster app.
Click to expand...
Click to collapse
keep trying... it will stick eventually
It's alright, I have a replacement coming tuesday. I just have to return to stock before then.
When you guys went to the software update option, during that duration when it was enabled were both 3G arrows animated? I'm only getting an up arrow (uploading).
I've been trying now for hours on the PRL setting and also cdma+lte/evdo auto
Well, I haven't been able to get this to work. Is there anything else I should try besides the software update trick before returning my phone to stock and returning it to VZ?
i had the same problem as you OP, but after pressing check new enough times and jumping straight into the browser, i got it to stick. took at least 12 tries, however and i'll see if it lasts.
love the franklin avatar btw!
also, is anyone using juice defender? idk if its coincidence or not, but i d/l the program last night and this is the first data connectivity problem i've had with the tbolt.
Yes, I had both arrows. But, for some reason when I would open the browser to google it wouldn't work. I tried about 4 times, each time it would show data, but I wouldn't have a connection. Also, it would show data being up and down stream, but I couldn't manage to get it to work when I tried it.
Hey,
I've been experiencing data connection loss on CM7-14/29, latest VGB, and PP (all MTD/AOSP GB ROMs).
Issue: Randomly, during the day, my internet dies, SMS/Voice appears unaffected.
This results in no connectivity on any apps, the 3G symbol is still there, but is white.
Turning it into airplane mode for 15s or so and then turning it back seems to fix the problem.
Attempted resolutions:
- Wifi sleep policy set to "never"
- Wifi sleep policy in spare parts set to "never"
- ESN swapped twice.
Anybody have any idea on what the hell I can do? BTW: My wifi is almost never on, so I don't think it's related to the WIFI handing off to 3G issue, because I RARELY use WIFI, and this happens (just happened again like 10 minutes ago), and there's no networks here it can even connect to, AND it's disabled.
I'm completely getting killed by this connection issue, b/c it stops randomly, then I don't get e-mail until I take notice that I'm not getting e-mail .
Pretty sure I'd take the SD card corruption issue AND the voice issue over this problem... :'(.
Problem resembles the invalild key issue that happens when switching ROMs, but the ESN swap twice (after two different ROMs were installed) seems to have ruled that out...or maybe I'm not doing something right about the ESN swap? Does the OTHER phone have to be activated during its time?
Anybody have any other fixes I can try?
EDIT:
Problem persists on all MTD AOSP GB ROMs, but right now I'm on CM7-29 with the EC09 modem, ESN swapped after modem flash.
Syndacate said:
Hey,
I've been experiencing data connection loss on CM7-14/29, latest VGB, and PP (all MTD/AOSP GB ROMs).
Issue: Randomly, during the day, my internet dies, SMS/Voice appears unaffected.
This results in no connectivity on any apps, the 3G symbol is still there, but is white.
Turning it into airplane mode for 15s or so and then turning it back seems to fix the problem.
Attempted resolutions:
- Wifi sleep policy set to "never"
- Wifi sleep policy in spare parts set to "never"
- ESN swapped twice.
Anybody have any idea on what the hell I can do? BTW: My wifi is almost never on, so I don't think it's related to the WIFI handing off to 3G issue, because I RARELY use WIFI, and this happens (just happened again like 10 minutes ago), and there's no networks here it can even connect to, AND it's disabled.
I'm completely getting killed by this connection issue, b/c it stops randomly, then I don't get e-mail until I take notice that I'm not getting e-mail .
Pretty sure I'd take the SD card corruption issue AND the voice issue over this problem... :'(.
Problem resembles the invalild key issue that happens when switching ROMs, but the ESN swap twice (after two different ROMs were installed) seems to have ruled that out...or maybe I'm not doing something right about the ESN swap? Does the OTHER phone have to be activated during its time?
Anybody have any other fixes I can try?
EDIT:
Problem persists on all MTD AOSP GB ROMs, but right now I'm on CM7-29 with the EC09 modem, ESN swapped after modem flash.
Click to expand...
Click to collapse
I had the same problem try flashing back to a VZW rom (dl09,eb01, or ed05) and run it for a day and see if you have the same problem...I did and brought it into Verizon none the less with eb01...(not an official Verizon release) and they confirmed my modem was hosed...they over night'd me a new one and I sent the old one back with eb01 on it and they never gave me a problem!
Sent from my SCH-I500 using XDA App
efan450 said:
I had the same problem try flashing back to a VZW rom (dl09,eb01, or ed05) and run it for a day and see if you have the same problem...I did and brought it into Verizon none the less with eb01...(not an official Verizon release) and they confirmed my modem was hosed...they over night'd me a new one and I sent the old one back with eb01 on it and they never gave me a problem!
Sent from my SCH-I500 using XDA App
Click to expand...
Click to collapse
I ran UKB 2.1 for like a week, last week. Not a hiccup. I don't think this is a HW issue, had no problems on UKB, nor OEM Froyo, nor OEM Eclair.
This is the second one (first one's camera HW was dead after like 2 weeks of use, verified by VZW), I really think the modem HW is fine, that's an issue with my setup or my process of flashing or something along those lines, still possibly key related for the authentication keys with Verizon if I'm not doing something right in the ESN swap process.
Maybe I'll try pushing a non-EC09 modem tonight (like ED05) and see if that fixes the issue, any other modems I should try? This problem sucks, just went to lunch, came back, no data *sigh*. Posted this right before I left for lunch (about 1.5 hours ago), right after it happened earlier...
Syndacate said:
I ran UKB 2.1 for like a week, last week. Not a hiccup. I don't think this is a HW issue, had no problems on UKB, nor OEM Froyo, nor OEM Eclair.
This is the second one (first one's camera HW was dead after like 2 weeks of use, verified by VZW), I really think the modem HW is fine, that's an issue with my setup or my process of flashing or something along those lines, still possibly key related for the authentication keys with Verizon if I'm not doing something right in the ESN swap process.
Maybe I'll try pushing a non-EC09 modem tonight (like ED05) and see if that fixes the issue, any other modems I should try? This problem sucks, just went to lunch, came back, no data *sigh*. Posted this right before I left for lunch (about 1.5 hours ago), right after it happened earlier...
Click to expand...
Click to collapse
idk man doesn't sound good. I am getting a replacement for mine (i somehow fried my modem/data or something?), but I just may never flash a rom again because ever since I started flashing my modem has become worse and worse... and now it is completely fried.
I have tried flashing a million modems before without a change, so I doubt that will help you. I would just recommend going BACK to what worked, and sticking with it, or you could fry your **** like I did.
i'm on miui 8.19 and every once in awhile i get a force close for android.phone and my 3g disappears too
I always had very weird data problems on 2.3 MIUI/CM7. The market would hang constantly or the browser would. I'd have to turn on airplane mode etc to get it back to normal.
Elluzion said:
idk man doesn't sound good. I am getting a replacement for mine (i somehow fried my modem/data or something?), but I just may never flash a rom again because ever since I started flashing my modem has become worse and worse... and now it is completely fried.
I have tried flashing a million modems before without a change, so I doubt that will help you. I would just recommend going BACK to what worked, and sticking with it, or you could fry your **** like I did.
Click to expand...
Click to collapse
Umm...ok.
Not trying to be a **** here but flashing the modem software has no impact on the modem hardware itself. Now, it is possible for modem firmware with an issue to cause damage, however, this is unlikely. The modem images are proprietary blobs swiped from OEMs, they're not tweaked by hackers in the Android community. I'm sure some OEM could figure out how to cause damage with one, but realistically they should be fine, even if the OEM was trying to kill it.
If your modem is getting worse and worse, regardless of what you did, it sounds like you had a hardware issue from the start. If that's the case, I'd suggest getting your phone replaced by VZW.
I would be extremely surprised if our problems are related. I'll keep it in mind, though.
T Nigs said:
i'm on miui 8.19 and every once in awhile i get a force close for android.phone and my 3g disappears too
Click to expand...
Click to collapse
Force close on what?
I don't get any force close, 3G just silently fades (not completely, goes from green to white). It still shows 1x or 3G accordingly, though. It's just white, hence, useless. Airplane mode for 10s fixes it.
Does this only happen on MIUI? Mine is pretty bad, happens like once an hour.
DevinLeFevere said:
I always had very weird data problems on 2.3 MIUI/CM7. The market would hang constantly or the browser would. I'd have to turn on airplane mode etc to get it back to normal.
Click to expand...
Click to collapse
Yeah, I expect either of them to glitch or hang if there's no network connection present, I have no issues with that. I have an issue with the fact that there is no network connection present .
Hi there! With SGS III being my third from the Galaxy family, I did not waste any time and flashed first custom rom the very hour I bought the phone. Everything was really great - I've been through Android Revolution, Omega, Wanam and couple more, but it all seemed too good to be true. Two days ago somethig went wrong with my data connection - I noticed it while I couldn't connect to Facebook. The "H" icon was in place and by the arrows I saw that it was "working" all the time. The problem was (and still is) that no data actually goes through. I tried different radios, kernels and roms - to no avail. I've read something about botched or misplaced IMEI issue, but checked it right after that and it is intact. To be sure I tested my SIM card in other phone and the data connection is working flawlessly. APNs checked. I'm getting quite nervous because I've only got my SGS III for three days and already it's.. Not entirely functional.
If you have any idea what this may be about, I'm happy to provide any information needed to identify my problem. Thanks in advance for saving my S III..
Sad to hear, unfortunately it seems you already tried the common solutions to solve such an issue, the only additional thing coming to my mind is to flash a stock Rom with odin, if it doesn't work do the same with a pit file or change your csc, because the last two options reset your whole user data to stock and your internal sd as well (don't forget to backup your data) it should solve it.
Maybe there is somewhere a leftover which causes your problem, good luck
Sent from my GT-I9300 using Tapatalk 2
roshi87 said:
Hi there! With SGS III being my third from the Galaxy family, I did not waste any time and flashed first custom rom the very hour I bought the phone. Everything was really great - I've been through Android Revolution, Omega, Wanam and couple more, but it all seemed too good to be true. Two days ago somethig went wrong with my data connection - I noticed it while I couldn't connect to Facebook. The "H" icon was in place and by the arrows I saw that it was "working" all the time. The problem was (and still is) that no data actually goes through. I tried different radios, kernels and roms - to no avail. I've read something about botched or misplaced IMEI issue, but checked it right after that and it is intact. To be sure I tested my SIM card in other phone and the data connection is working flawlessly. APNs checked. I'm getting quite nervous because I've only got my SGS III for three days and already it's.. Not entirely functional.
If you have any idea what this may be about, I'm happy to provide any information needed to identify my problem. Thanks in advance for saving my S III..
Click to expand...
Click to collapse
Flash a stock rom with Odin and perform a full wipe *2767*3855# in the phone dialpad. Save important files to the pc first. This should fix it all. You can reroot after that and make a cwm backup of your stock rom.
-Edit- double post, Follow the above
Thank you both for your suggestions, but it seems that I'm stuck with I-do-not-know-what.. :/ Flashed stock rom and new radio via ODIN, but the problem with really slow HSDPA connection is still present. I am worried it might have something do do with IMEI after all - it seems that here http://forum.xda-developers.com/showpost.php?p=29461950&postcount=3 they are explaining similar issue, but I haven't lost my IMEI (not to mention backuping nor restoring anything). What is more, I do not only have EDGE icon, but HSDPA as well, but the connection is slower than GPRS. Damn it..
Ive searched the forums, googled, factory reset, messed about with *#0011# power save, rebooted/forgot router and I'm STILL having issues with the wifi dropping and reconnecting periodically (maybe once every 10/20 mins?) . Im on BLG8 which is as far as i can tell the latest firmware (im not rooted) for the UK.
Has anyone got a solution to this? The main reason is I use Skype a lot and the call will just drop (obviously) with the wifi drop outs.
No other device has issues with my wifi router.
Any help would be much appreciated
Cheers
Does it make any difference how far you are from the router? Does it always connect fine initially?
I'm having the same issue and i've tried every fix that has been suggested. I dont understand after spending the amount of money i did on this phone that i have to run through the dialer to get it to work properly sometimes. Then other times it still drops out and wont come back on for 5 to 10 minutes. I've changed roms, kernels, and wiped completely i dont know how many times and went back to stock. Still works sometimes and hangs up others. There doesn't seem to be a permanent fix for people lucky enough to have this issue still. My 30 day return is way up and gone so i cant send it back. Samsung cant seem to give me an answer. I'm at a loss for words.
Sent from my GT-I9300 using Tapatalk 2
My 30 days was up, it's still been replaced under warranty. I took it to CPW who sent it away, it came back 'fixed' so I asked them to log into their WiFi... of course, they couldn't and the guy said he would order me a new phone but it would need to come from Samsung. My new one has blazing fast WiFi!
i have the same problem. i was hoping a new rom would fix it, but FWIR its busted. i get 2 bars MAX no matter how far i am from teh router. its fast enough, but it drops out constantly.
also my screen is sometimes slow to turn on from sleep.
im on vodaphone if that makes any difference.
Guys... I had a very similar problem with my phone.
First of all WiFi became very unreliable.. like yours. I changed ROM and it still persisted. I even went completely back to stock.. and it still persisted. Dropping out.. no reliable connection etc etc.
Then it started being really weird.. the touchscreen started responding intermittently. Sometimes I couldn't get it to unlock. And this was all on stock.. no root etc.
I was ready to send it back to be repaired.. and I came to the conclusion that there must be something staying the same.. even after a wipe / reflash. Maybe one of the other partitions was corrupt???
Now I'm not clever enough to investigate.. but I did come to the conclusion that a repartition may wipe everything and make it a real fresh install next time.
So I found an appropriate .pit file and stock ROM and used Odin to flash the ROM and partition the phone.
And it is now all fully functioning again.. no WiFi issues at all.
RTFM THO FFS! Potential for complete brick if you get it wrong
Sent from my Nexus 7 using XDA Premium HD app
just..want..to..delete this post.........and I can't...so there is now filler here....GG k thx bai
It seems to have improved with the latest JB leak, still every now and then but certainly better - i did a full factory reset + cache wipe in stock recovery (im unrooted etc). Still, would a modified kernel/modem fix this very common issue?
This problem is everywhere it seems.
OK so really weird update: my screen unlock is still a bit slow, but my wifi hasnt dropped for a few hours. i went through all the vodafone crap and updated/ran/configured it all, and now it seems fine. seemed vodafone wanted to verify my phone+sim details but couldnt over the wifi so kept trying to do it over the 3g, but couldnt do it quickly enough so the wifi cut it back out again. I have a headphone amplifier that is very sensitive to mobile phone signals. it beeps 4 seconds before i get a message or phonecall, and "ticked" at me whenever my wifi dropped out. its not ticked in hours.
TL;DR anyone on vodafone, run your "my vodafone" application and configure it all. might fix it.
Mine drops wireless a lot when connected to wireless A networks. It seems stable on wireless N networks. Anyone else notice A networks to be worse?
Sent from my Samsung Galaxy S3 i9300 Smartphone
So, without writing a big long explanation, I'll cut straight to the chase and tell you what's been done with some light background.
I woke up one morning and my network was inactive. At first, I thought it was maybe some mobile network issue. One day later, still no connection.
-Odin'd back to stock twice
-reflashed multiple roms (including all the usual formats)
-flashed 5 difference ICS modems (KA5,6,7 and KB1,5)
IMEI error popped up after a new rom flash for those that are curious, but I lost my original a while ago and just adopted a generic. Never had an issue with it affecting my mobile network. I remember having a modem issue before when ICS was in it's discovery phase and flashing roms, but nothing where the modem just stopped while it was running/on.
I just wanted to see if I forgot something before I officially sentence my phone to death. I wanna say maybe a freak surge nuked it or something. That's about all I can think of since I know my way around android. Any ideas appreciated. maybe there's a way to check my hardware I forgot about.
Thanks!