Serious data connection problem - Galaxy S III Q&A, Help & Troubleshooting

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..

Related

[Q] Urgent: suddenly lost my phone signal

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.

Possible modem toast?

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!

manual install of radio?

sorry if wrong place to post this, but basically I have been racking my brain trying to figure this out.
i have an S3 mini (like that isnt bad enough)
and i decide to root, flash cm10 (mcklaw golden beta2 and enjoy all the perks of cm10 and enjoyed the phones greater usability for at least 1 day,
suddenly i get the old signal drop issue, so i figure my phones modems playing up, the baseband is XXXX and im convinced i need to reflash it, so i do, (data wipe/wipe) and the same thing happens usable for a few hours, but after the third time i realise this isnt a long term solution.
So i look around for various solutions, im pointed to the efs folder and .nv_data, to which i say to myself 'im glad i backed that up!'
...i restore efs and i see everything is normal however i dont seem to have nv_data at all, (im not convinced it was ever there?)
more to my surprise, i have IMEI, I check *#*#4636#*#* everything looks ok, the radio seems to function and i have everything but baseband,
signal comes and goes, sometimes its fine 3g etc other times nothing
im just asking basically does it sound like i have lost my efs folder? and any ideas what i could try to narrow down the issue, or possibly resolve it?
thanks alot for your time,
G

[Q] Radio - Signal Problems after Custom Rom

Hello,
I'm looking for some help with my son's sgh-i757m phone. I'll try layout my history on the phone and question in some hopefully easy layout.
What I did
at my son's request, I changed the stock rom on my son's sgh-i757m (Samsung Galaxy S2 LTE) for him. He wanted to be able to install apps and customize his phone as he wished. i installed the paranoid android rom for him successfully.
Problem
Once installed he began losing cell phone network connection. This progressively got worse and now it barely works.
My troubleshooting
I tried installing other custom rom's to see if this would resolve the problem. Nothing seems to work. The present rom I have which is Dadoes. This one seems to work the best BUT i only get signal within 1 block of the cell phone tower. (oh ya... i live in a small town where we only have two cell towers in the valley here.)
I tried researching terminal commands to boost the radio signal but I haven't found anything for the sgh-i757m.
I've also done the *#*#4636#*#* trick... nothing... i've installed network boosters but those don't do anything.
What Haven't I done
I haven't tried to install a different radio rom... (maybe I did, but in my research there isn't an explanation if this is different from the OS rom).
I haven't tested whether it is a hardware issue as I don't know how
What I am asking
Can I get help regarding radio roms; is this different from OS rom's? if it is different... where do I find them and more information on this?
Can I get help on steps to test my hardware to see if this is the issue?
Any pointers if I am missing anything?
Thank you... oh and this is my first post.
I'm out of lurking and posting now.
Respectfully,
KrustyQ-tip
I
HI buddy , welcome to our section .
Now your problem, did you tried to reflash the stock ROM back after you saw that your phone is having problems to see if the problem is solving?
I did took a search on this forum and I found this thread :
http://forum.xda-developers.com/showthread.php?t=1707126
There you'll find a cwm and other useful stuffs for your phone
Sent using my Zanpakutō{斬魄刀} using my Shinigami POWERS{死神} <+> ლ(◣_◢)ლ
Fixed - sgh-i757m connection problem
Well... thank you for your reply. I didn't have a backup of my son's original rom but my daughter just broke her phone and it was exactly the same. So, I thought I would back her's up then put it on my son's. What she did was break her screen. So, I thought I could swap screens or parts to make this work. I was able to take my daughters apart and was able to take my son's apart. In taking apart my son's phone, I found that the attenae cable wasn't attached to it's connector. So I plugged that in then tested and voila! It works!! pheew!! Was getting worried that I was losing my mind (maybe I did?).
Thank you for your help. I did do the custom roots and roms. Now my son can choose which one he wants!
Respects,
KrustyQ-tip

Help me figure out why....

I don't see mention of it very often so I have to assume it's just me, but I have a terrible time with the radio getting borked out of the blue when I run any of the CM10 based ROMs. It will work fine for a few days, but out of nowhere, one I day I will turn the phone on and the radio will be messed up again. For example, this morning I installed the latest CM10.2 stable release. All was working fine... data, phone, etc. I got the ROM setup with all my apps and decided to make a backup. After doing the backup in recovery and rebooting, the radio no longer worked. So obviously I did something in recovery to screw it up.
Does anyone have any clue as to what I could be doing to cause this to happen so often? I want to run a CM Rom, but having to reset the radio once or twice a week is getting tiresome.
Thanks. For now i'll just reset the radio again and go back to stock and hope someone has some suggestions.
flyinjoe13 said:
I don't see mention of it very often so I have to assume it's just me, but I have a terrible time with the radio getting borked out of the blue when I run any of the CM10 based ROMs. It will work fine for a few days, but out of nowhere, one I day I will turn the phone on and the radio will be messed up again. For example, this morning I installed the latest CM10.2 stable release. All was working fine... data, phone, etc. I got the ROM setup with all my apps and decided to make a backup. After doing the backup in recovery and rebooting, the radio no longer worked. So obviously I did something in recovery to screw it up.
Does anyone have any clue as to what I could be doing to cause this to happen so often? I want to run a CM Rom, but having to reset the radio once or twice a week is getting tiresome.
Thanks. For now i'll just reset the radio again and go back to stock and hope someone has some suggestions.
Click to expand...
Click to collapse
There are some versions that lose connectivity/data connection but it's not a borked radio. Most of the time you can restore a working system by just turning off data for a minute and then turning it back on.
I am in the process of downloading the "stable" release from 2013-12-11, but my current nightly of 2013-12-10 hasn't had any hiccups.
I wish it was that simple for me. I can typically get data to work again when it goes out by doing what you said, but the ability to make phone calls never comes back unless I do the whole restore radio procedure. When I look at my phone info, it has my phone number listed as all zeros. It's a pain.
Thanks for responding...
flyinjoe13 said:
I wish it was that simple for me. I can typically get data to work again when it goes out by doing what you said, but the ability to make phone calls never comes back unless I do the whole restore radio procedure. When I look at my phone info, it has my phone number listed as all zeros. It's a pain.
Thanks for responding...
Click to expand...
Click to collapse
Ahhh, the 000-000-0000 number. Seriously, pull the battery. Don't shutdown, just pull it out, reseat, and turn on.
BTW, I installed the stable version yesterday and haven't had any problems. Flawless install, all of my apps still work and I didn't lose any data.
If that is all I needed to do, then I feel like a complete dummy. I guess I will reload the stable version again tomorrow and see what happens. Thanks for the info.
EDIT: I've come to the conclusion that i'm just not going to be able to run a CM10 based ROM. I have tried everything I can think of and/or read about on these forums and no matter what, I lose my ability to make calls using any of the CM10 ROMs. I know it's me because everyone else seems to run them fine, but I can't. It's a real bummer because I hate the stock ROM. I just don't know what to try anymore. I tried setting all the network settings as described in the directions (although I can't find the options for RIUU\SIM and NV mode anywhere). I triple wiped everything before flashing, I tried all the different CM10 ROMs and nightlys, I tried flashing with and without the sim card installed, etc. and nothing works. I get the 4G network, but my MEID ad phone number keep coming up as all zeros. It's very frustrating because the only reason I bought the phone off Ebay was to be able to run a CM rom.
I only have one thing left to try and I don't even know if it's worth it. Verizon sent me 2 4G sim cards by mistake so I have a spare sim card. I'm thinking of activating it and swapping out the old one in the hopes that it's a sim card issue. Although the current sim card works fine with the stock ROM so I doubt that's the problem but I don't know what else to try. Boy switching around to different ROMs sure was a lot easier with my old Dinc and Dinc2.
Have you tried running the latest RUU then flashing recovery and restoring? That seemed to solve a random reboot issue I was having, although I've never had radio issues. I have dirtyracun s-off, so it was pretty quick and easy.
flyinjoe13 said:
If that is all I needed to do, then I feel like a complete dummy. I guess I will reload the stable version again tomorrow and see what happens. Thanks for the info.
EDIT: I've come to the conclusion that i'm just not going to be able to run a CM10 based ROM. I have tried everything I can think of and/or read about on these forums and no matter what, I lose my ability to make calls using any of the CM10 ROMs. I know it's me because everyone else seems to run them fine, but I can't. It's a real bummer because I hate the stock ROM. I just don't know what to try anymore. I tried setting all the network settings as described in the directions (although I can't find the options for RIUU\SIM and NV mode anywhere). I triple wiped everything before flashing, I tried all the different CM10 ROMs and nightlys, I tried flashing with and without the sim card installed, etc. and nothing works. I get the 4G network, but my MEID ad phone number keep coming up as all zeros. It's very frustrating because the only reason I bought the phone off Ebay was to be able to run a CM rom.
I only have one thing left to try and I don't even know if it's worth it. Verizon sent me 2 4G sim cards by mistake so I have a spare sim card. I'm thinking of activating it and swapping out the old one in the hopes that it's a sim card issue. Although the current sim card works fine with the stock ROM so I doubt that's the problem but I don't know what else to try. Boy switching around to different ROMs sure was a lot easier with my old Dinc and Dinc2.
Click to expand...
Click to collapse
Do you have system select as automatic or home only? I have that issue when automatic is selected.
Sent from my ADR6425LVW using Tapatalk
I tried both automatic and home with same results. At some point i'll give it another try, but for now i'm going to stick with the Venom ROM because i'm getting tired of having to reset the radio. Some cold winter weekend day when i'm stuck in the house, i'll give it another shot.

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