Ongoing 3G issues with Galaxy S3 mini - Galaxy S III Mini Q&A, Help & Troubleshooting

Hello guys,
For the past year or so I am having intermittent problems with my 3g connection. It just loses the connection with the mobile internet without any error messages and the only way to fix this is rebooting the phone. At first it happened every couple months but the intervals between connection losses seems to get shorter. The last few months it was every 10-14 days, now it's every 5 days. Since a reboot seems to fix this I don't think there is a physical defect on my 3g chip but the shortening intervals are somewhat worrying. I checked my APN settings multiple times and I've called my carrier's tech support several times but they too can't seem to find anything wrong with my APN settings. I'm currently using a custom ROM (OmniROM based on Android 4.4.4 with the Stagefright patch included) but this problem existed even in the original ROM so I doubt it's a kernel/driver issue. Is there anyone knowledgeable enough to pinpoint the problem or at least help me in the right direction because it's becoming a bit annoying and I dislike not being able to figure out WHY something happens. ^^"

The issue you have mentioned applied also to my phone, but it appeared for the first time after installing Omni from golden-guy. I haven't observed it on my stock rom. At the very beginning, I was able to mitigate the issue by turning airplane mode on and off. As you mentioned, the issue's frequency was increasing over time, leading to more than one signal lost per day. Airplane mode solution stopped working. I have also tried to kill (and got restarted) rild, as well as radiod - with no luck. Logs (I haven't checked kmesg) revealed nothing. I'm not sure the details of your issue, but I was loosing the whole GSM/WCDMA signal, not only the Internet access. Meanwhile, the system seemd to be looking for a network, draining my battery.
I still hope that the solution was to replace my SIM card with a new one from the operator. After that, about a month ago, the issue happened only once, and airplane mode on and off solved it. It's worth to notice, that turning airplane mode on took quite long time, about 30 seconds.
I'm having GT-I8190, Omni version 4.4.4-20151108, baseband I8190XXAMG (I'm not sure if it is distributed along with the rom, or maybe resides on different partition, and is not updated with the omni rom releases).

f_ranek said:
The issue you have mentioned applied also to my phone, but it appeared for the first time after installing Omni from golden-guy. I haven't observed it on my stock rom. At the very beginning, I was able to mitigate the issue by turning airplane mode on and off. As you mentioned, the issue's frequency was increasing over time, leading to more than one signal lost per day. Airplane mode solution stopped working. I have also tried to kill (and got restarted) rild, as well as radiod - with no luck. Logs (I haven't checked kmesg) revealed nothing. I'm not sure the details of your issue, but I was loosing the whole GSM/WCDMA signal, not only the Internet access. Meanwhile, the system seemd to be looking for a network, draining my battery.
I still hope that the solution was to replace my SIM card with a new one from the operator. After that, about a month ago, the issue happened only once, and airplane mode on and off solved it. It's worth to notice, that turning airplane mode on took quite long time, about 30 seconds.
I'm having GT-I8190, Omni version 4.4.4-20151108, baseband I8190XXAMG (I'm not sure if it is distributed along with the rom, or maybe resides on different partition, and is not updated with the omni rom releases).
Click to expand...
Click to collapse
Did you check logcat? If you didn't then logcat might show what the problem is. And your problem sounds more severe than mine. I only lose 3g but I can still call and send text messages. A problem with the simcard might be possible but it could also be a physical problem with the simcard slot though I can't say why rebooting or turning airplane mode off and back on would fix that.

Sahri said:
Hello guys,
For the past year or so I am having intermittent problems with my 3g connection. It just loses the connection with the mobile internet without any error messages and the only way to fix this is rebooting the phone. At first it happened every couple months but the intervals between connection losses seems to get shorter. The last few months it was every 10-14 days, now it's every 5 days. Since a reboot seems to fix this I don't think there is a physical defect on my 3g chip but the shortening intervals are somewhat worrying. I checked my APN settings multiple times and I've called my carrier's tech support several times but they too can't seem to find anything wrong with my APN settings. I'm currently using a custom ROM (OmniROM based on Android 4.4.4 with the Stagefright patch included) but this problem existed even in the original ROM so I doubt it's a kernel/driver issue. Is there anyone knowledgeable enough to pinpoint the problem or at least help me in the right direction because it's becoming a bit annoying and I dislike not being able to figure out WHY something happens. ^^"
Click to expand...
Click to collapse
I just wanted to confirm that I have similllar issue with 3g data connection. S3 mini with I8190XXAMG4 baseband. Stock ROM used for last few years (without any significant issues with 3g data connections), upgraded to latest CM11 20151017 from maclaw/novafusion. I noticed that there are some glitches with 3g data connections. Sometimes I need to tap few times before connection finally is being established. Funny thing is that I have second s3 mini with the same CM11 20151017 and all is OK.
I tried a lot of another ROMs; fifferent version of CM11, OmniROM (4.4.4 and 5.1.1), CM12.1 - problem remains - issues with 3g data connection. Is there any solution to get rid of this 3g data issue?

Sahri said:
Did you check logcat?
Click to expand...
Click to collapse
Yes, logcat (main, radio, events) revealed nothing but just signal drop to 0%. At that time, I didn't know about kmsg and system logcat buffer, so I haven't checked them.
Sahri said:
I can't say why rebooting or turning airplane mode off and back on would fix that.
Click to expand...
Click to collapse
Just tried this, and it helped. Usually, when something is not working, people try to turn it off and on again.
I always had rare glitches with mobile data connectivity, and turning mobile data off and on again always solved the problem. I think our problems my be hardware related. I suppose my old SIM card could have buggy software, i.e. advertising to support some newer protocol, but actually didn't. After upgrading, the phone tried to use the new advertised protocol, and got confused, or made the SIM confused.
I also know about cases, when SIM card simply died without any reason.

I used Note 2 about two years, flashed different roms and never had troubles, but then my friend used it about 3 months on 5.0.2 custom and got troubles with gsm/wcdma. My next samsung phone become our beloved i8190. Flashed it from stock to 5.0.2 CM, than 5.1.1, after month got first Cellular bugs. Tried another LP and some KK roms, my troubles with baseband became more and more frequently every day, flashed different modems, changed much settings in system.. So I was desided that it's all HW problems, and hated Samsung for such failure. But one day just tried to install Project Noble, and all this troubles gone forever. So it's just drivers, which not optimised for new Android versions. 4.1.2 mixed with old TouchWiz after fresh and clean Lollypop feels horrible, but we can do nothing with it.

f_ranek said:
Yes, logcat (main, radio, events) revealed nothing but just signal drop to 0%. At that time, I didn't know about kmsg and system logcat buffer, so I haven't checked them.
Just tried this, and it helped. Usually, when something is not working, people try to turn it off and on again.
I always had rare glitches with mobile data connectivity, and turning mobile data off and on again always solved the problem. I think our problems my be hardware related. I suppose my old SIM card could have buggy software, i.e. advertising to support some newer protocol, but actually didn't. After upgrading, the phone tried to use the new advertised protocol, and got confused, or made the SIM confused.
I also know about cases, when SIM card simply died without any reason.
Click to expand...
Click to collapse
But if it's hardware related, wouldn't you think that rebooting our phone or turning airplane mode on and off wouldn't fix it? And did you see in the logcat log if something happened before the signal drop? Sometimes events prior to the signal drop can also tell something about the cause.

Sahri said:
But if it's hardware related, wouldn't you think that rebooting our phone or turning airplane mode on and off wouldn't fix it?
Click to expand...
Click to collapse
Hardware could also have its state, which may get corrupted and reset on reboot.
Sahri said:
And did you see in the logcat log if something happened before the signal drop? Sometimes events prior to the signal drop can also tell something about the cause.
Click to expand...
Click to collapse
No relevant priori messages within more or less 10 minutes.

Related

Nexus One drops data signal, reboot required

Here's the situation: For about a month now I've been having issues with my data not working on my N1. Presently, I'm on Paranoid Android ROM, but have tried fixing the situation by flashing SpazeDawg, experiencing the same issue. My phone shows bars, and cycles between H, 3G, and E depending on where I am, but it's faded out, not blue; like it's not connecting. I do have voice and texting, however. I flashed the new Korean radio months and months ago, but I tried flashing back to 5.08.00.04, with no change in result. I've tried resetting the APNs to default, which after a reboot fixes the problem temporarily. I've run out of ideas on how to fix this, or isolate the problem. I'd rather not get rid of my N1, but the more I work on it, I'm beginning to think it is a hardware issue. Tried a new sim card, too! Any ideas on how to fix this? Thanks in advance.
I've been having similar problems ever since switching to ICS so I think it's just inherent. I've found that toggling data off and on again fixes the issue most of the time. So it's quicker solution than rebooting but still not ideal. Hopefully a fix appears but in the mean time I'm willing to live with it. For what it's worth, I've found Evervolv to be the most stable in terms of lost connection but YMMV...

Loosing randomly 3G or telephone signal

Hi all,
Since about 1 year i'm a happy owner of the Galaxy Note. As the stock rom was quite crappy (eating battery like crazy) I decided to swap it with a CM10.0 flavor (Cookies & Cream).
Well, installing the ROM went fine and the phone worked great, except one thing.
Since the beginning that i'm using custom roms on this phone, i'm randomly having issues with the telephone or 3G signal. As I thought, maybe the ROM is full of bugs, I wiped the phone and installed the official CM10.0 ROM. Unfortunately that solved not my problem. Since a couple weeks ago i updated to CM10.1, and still having this issue.
However, some issues where solved since the last upgrade:
- First ROM (CM10 flavor, Cookies & Cream): randomly dropping the signal, and asking for a SIM pin. Sometimes even a restart was needed
- Second ROM (Official CM10): same as above, but less issues with the SIM, mostly signal related
- Third ROM (Official CM10.1: SIM issue gone, however the phone is sill loosing the data signal + sometimes even the telephone signal (restart needed).
When I loose my signal, something it's just the data connection (3G/H). The strange thing is that most of the time that this happens the data connection or telephone signal restores when I enable/open the screen by using the side/home button. Well, that's very strange as I have no power saving apps or something like that running.
But unfortunately this is not always the solutions. Usually 1x per 2 days I have to reboot the phone in order to bring the signal for telephone + data back alive.
SIM has already been replaced, with no luck. I did install this ROM on another phone (from a friend) as well - which had in the beginning the same issues, however things seems to be become stable (haven't heard him anymore)
I already tried different modems on my phone (XXLSA / XXLSX, currently using XXLSO), but none of them solved this loosing data/telephone signal.
It starts to drive me crazy, as I use this phone for my work too.... being unreachable is quite annoying
Anyone an idea what goes wrong here, or how I can find out why this phone is going nuts?
Nobody that could explain why my phone is having this behavior?
liteonit said:
Nobody that could explain why my phone is having this behavior?
Click to expand...
Click to collapse
+1

Modem crashing - bp-dumps

Hi guys.
Since last week I've been having an issue. My phone ramdomly looses signal for like 10 seconds and it generates a folder named "bd-dumps" with 3 archives on it: ramdump_modem_fw.bin, ramdump_modem_sw.bin and ramdump_smem.bin.
I didn't changed anything on the phone when the problem started. I was running LiquidSmooth ROM (Very nice, BTW), and started noticing this issue. In fact, I just noticed because my phone was lacking memory.
Now, I've been searching about this issue, but none of the solutions have worked for me. Some say is a bad SIM Card, others a bad network, but I am pretty sure that the issue is not about that.
Everytime that I turn on Data services, it happens. When data services are off, it doesn't.
Anybody has have this issue or have any idea what is this about? I attached some screenshots. Thanks!
Edit: I already changed ROMS, flashed Stock with RSD and flashed modem, but the problem still the same.
This is old.
http://forum.cyanogenmod.org/topic/79890-modem-crashes-on-102-nightly-28-sept/
Been happening on CM based roms since 10.2 or before, for me it will only crash while on H+, 2G won't crash. Stock rom doesn't crash. Already tried buying a new SIM card too.
Devs are either unaware/not willing to look into it/not capable of reproducing since it only seems to happen to certain unlucky people, probably related to some types of networks, since my crashes only occur while on certain regions of my country.
On the other hand, if anyone capable enough is willing to look into this, i'd glady crash my phone a thousand times to generate logcats, dumps or whatever is needed to debug this ****, after all, this is a dealbraker for CM, this is a phone after all.
jaweinre said:
This is old.
http://forum.cyanogenmod.org/topic/79890-modem-crashes-on-102-nightly-28-sept/
Been happening on CM based roms since 10.2 or before, for me it will only crash while on H+, 2G won't crash. Stock rom doesn't crash. Already tried buying a new SIM card too.
Devs are either unaware/not willing to look into it/not capable of reproducing since it only seems to happen to certain unlucky people, probably related to some types of networks, since my crashes only occur while on certain regions of my country.
On the other hand, if anyone capable enough is willing to look into this, i'd glady crash my phone a thousand times to generate logcats, dumps or whatever is needed to debug this ****, after all, this is a dealbraker for CM, this is a phone after all.
Click to expand...
Click to collapse
In my case, it does crash on Stock too. That's my problem. I flashed with RSD to Stock and still the same.
I have also tried other ROMs but the problem still the same. Any ideas?
Thanks
Modem still crashes for me on anything not based on stock 4.1.1 / 4.1.2 - That said, latest PAC jbbl 20140825 has had the least, but persistent and consistently crashing at the same intervals.
I came from stock 4.1.1 latest ota to 4.1.2MX then PAC jbbl 20140825, only got about 6-7% signal loss. Where as all other roms 4.2 4.3 and 4.4.x have been similar results in the 20-30% signal loss.
In your case, if you've not realized since, your modem might be bad hardware-wise. Since you say it was working and then started suddenly, even on stock. Stock I get 0% signal loss.

My second N6, the same problem

I bought the Nexus 6 (blue, 64gb) the day one, in November and since that day I noticed random reboots in a particular situation. When I switch to a WiFi network to another it shuts down and so I have to turn it on. When it turns on I have lost all my WiFi networks configurations, so passwords, dhcp settings, etc.
Random reboots rarely happen also in camera/gallery apps.
I tried to send it back to google and I received a new nexus. The first one was produced in June 2014, the new one in December 2014. The issue is still there. [emoji17] I've also tried to update to 5.1 but no resolution.
I have rooted, installed twrp, decrypted both my nexus 6 with toolkit.
How can I solve the problem? I was very happy with this phone.
Try using it completely stock and see what happens. I'd say chances are that if you set both up the same, it's something you're doing and not the hardware on 2 different phones.
But other people have made the same basic mods on their nexus and their phone has not this kind of issue.
Is it every network? Maybe try a stable custom ROM to see if it happens there too. Could be a problem with specific networks or even apps. Troubleshooting is the key. First try full wipe, no restored Apps.
I could be as simple as an app the developer has not updated since gingerbread or something stupid like that.
Is there a way to find the malicious app?
There definitely *was* a bug causing loss of wifi networks, and I think there may also have been a reboot involved there (not sure if we rebooted it manually, or if it just did it on its own as a response to a wpa_supplicant crash...). It was across the board for Android 5.0 though, not limited to Nexus 6. I saw my wife's Nexus 5 do it once. Never actually had it happen on my 6.
I'm not sure if this bug was fixed or not, since it wasn't something we tried to reproduce, and only happened once. The bug is definitely related to wpa_supplicant, since that is the only program that actually interacts with its configuration file (which is where the wifi configurations are actually stored).
As far as galleries go, you're not giving much to guess by. I certainly haven't seen galleries cause reboots like that. Maybe you are using a bad one?
Try this gallery; https://github.com/lbdroid/Android-Binaries/blob/master/Gallery2.apk
That is the actual AOSP gallery, modified to install as a standalone application. The source code is in another repository on my github.
*note: it will not do you any good at all to swap out your phone, since there is no indication that you are experiencing a hardware issue.
But why other people doesn't experience this problem that is related to WiFi? All people use WiFi and every time. Is there a way to fix the WPA_supplicant issue? Maybe a custom ROM?
My first n6 had also an hw issue, I think, because before it rebooted it gave me some little "buzz" from the top speaker.
mouse100 said:
But why other people doesn't experience this problem that is related to WiFi? All people use WiFi and every time. Is there a way to fix the WPA_supplicant issue? Maybe a custom ROM?
My first n6 had also an hw issue, I think, because before it rebooted it gave me some little "buzz" from the top speaker.
Click to expand...
Click to collapse
all people use WiFi is an incorrect statement. you can say most ppl use wifi, but all would never happen. I hate using WiFi and NEVER use it except when its absolutely necessary. ive probably used WiFi 2 times on my n6 since getting my n6 in November, and there's no WiFi issues here.
mouse100 said:
Is there a way to find the malicious app?
Click to expand...
Click to collapse
Yes, start with stock and install a few apps at a time until you get the problem. Given the fact that you have 2 different phones experiencing the same problem, it is much more likely that it is something software related rather than hardware (though I suppose it could be possible if you're really unlucky ).
mouse100 said:
But why other people doesn't experience this problem that is related to WiFi? All people use WiFi and every time. Is there a way to fix the WPA_supplicant issue? Maybe a custom ROM?
Click to expand...
Click to collapse
You said that it happens when you change from one wifi network to another. Most people don't do that. Most people have one wifi network at a time and don't change it.
There is also a huge difference between wifi network configurations... A/B/N/AC, frequency, bandwidth, multiple-bands, encryptions, etc.
My first n6 had also an hw issue, I think, because before it rebooted it gave me some little "buzz" from the top speaker.
Click to expand...
Click to collapse
Normal.

wifi disconnects for unknown reasons

My SM-N900A has been working great for a few years now and is running Android 5.0 from an OTA update (maybe a year ago). A few weeks ago I started having trouble with the wifi. Sliding the wifi control to "on" will sometimes work, but more often it can't find any networks. Often rebooting will fix it, and the wifi will connect (showing a strong wifi signal). Sometimes I see it rescanning several times when I don't think it should be scanning. Then after a few minutes or occasionally up to an hour it will disconnect from the wifi entirely and refuse to show any networks as before. Sometimes I have thought that disconnecting the battery is a surer way to restart the wifi than just rebooting, but it is hard to be sure. This happens with my home wifi, as well as with several other wifi networks I have tried. I haven't dropped or damaged my phone, so I'm wondering if this could be a software problem. I have tried rebooting in safe mode, but the problem persists so I don't think this is caused by an errant application. I have also tried swapping in my spare battery, but that didn't change the problem (although neither battery is a genuine Samsung). If I leave wifi off and just stick to the cellular connection, the phone seems to work as it should. Would there be any logic to trying one of the alternate ROMs on this forum to see if this could fix the wifi problem? One reason I haven't tried this already is that the directions I've seen for installing these ROMs seem to be written for people who have done this dozens of times (which I have not). If this is a reasonable tack, is one of these ROMs known for its ease of installation, or perhaps for the quality and detail of its installation instructions? Are there any less drastic things I should be trying first (other than buying a new phone of course)?
Got the same issue. used odine reinstall 5.0 modem/radio and when that did work, i reinstalled 5.0 and 4.4.4 but nothing worked. i think its a hardware failure. time for a new phone.

Categories

Resources