Weird bootloop out of nowhere when network is active - Galaxy S II Q&A, Help & Troubleshooting

Hey
I own an S2 i9100, using CM 10.1 (latest stable). I haven't made any ROM/kernel change for as long as the stable came out.
Yesterday out of nowhere, my phone started boot looping, and I have no idea why. The phone boots completely and after a few seconds just crash.
I've looked at the logcat during a crash and couldn't make something out of it.
I've read the last_kmesg and couldn't find any leads.
My biggest clue is that I can totally prevent this from happening when I shut down the network (both wifi and GSM). A few seconds after one of those start, the phone reboots.
Bluetooth tethering for internet access doesn't crash the device. It sounds weird, so: Are there any operations that don't run on BT and do run on other types of networks? I might be able to narrow it down this way.
Also, I'd love to hear other suggestions, but I don't want to hurry up and wipe the device just yet.
Thanks!
Asaf.

Asaf try to flash another ROM and test network again to try or it was ROM related hardware related or something with baseband
Sent from my GT-I9100 using xda app-developers app

Related

SOD problems starting from WIFI

Hey all!
Just started this thread to explain something about SOD and phone SHUT DOWNS by itself.
I was NEVER BEFORE have these problems, like SOD or SHUT DOWN phone by itself, till now. I sure that it was related to one WIFI program, what I downloaded yesterday(Unlock With Wifi). Today I activated the app and I have phone SHUT DOWN by itself, like 3 times in hour. If I disabled the app, I solved the problem(for now I already UNINSTALLED that app).
Now I sure, that our SOD and S.DOWN problem not hardware problem, but SOFTWARE related problem.
I want to say you all, who have SOD or S.D...., look what app you have installed(what can use wifi) or in phone settings and try several times to configure your wifi(one of most: dont but your wifi to sleep, when screen is OFF), untill you solve you problem.
If you too know some examples, from you experience, then share with us here!
THX for reading!
Hope it will HELP someone.
CHEERS!
I'll try if turning off wifi will help. It should if this is wifi related problem.
JiiJii said:
I'll try if turning off wifi will help. It should if this is wifi related problem.
Click to expand...
Click to collapse
Hey!
Like I sayed, just try different things with WIFI settings. I think turning OFF wifi, will solve the problem, until you turning it back(when you have the problems). We will see, dose it solve the problem, if you turn OFF WIFI.
CHEERS!
You got the nail on spot. I was also in the same impression with SOD. Till now I'm not able to Figure out the app which cause this. But yes this is software issue rather than hardware. I also read else where that the SOD cause because of the lower voltage supplied to processor during sleep with which its not able to get itself up from sleep. Not sure...
I have a app that turns the wifi off when I lock the screen (dont remember which one of my apps!) so I havent experience it for awhile.
Sleep as an droid has a feature that shuts down the sleep tracker at a certain procentage (I chose 20%), instead of shutting the sleep tracker down, it shuts down the whole phone. Both of the times that i got SOD my phone had 20% left of its battery, so it was pretty obvious what caused it.
Sleep bot tracker is a great app if you forget to shut down your wi-fi before going to bed. Make it a habit to track your sleeping time, in the same time ull make it a habit to turn you wifi off. It has a built in function that shuts off the wifi when u start tracking your sleeping time. This app does not bring you and SOD.
What, but the general advise to sod had always been to check wifi always on...
XDA ♥
consegregate said:
What, but the general advise to sod had always been to check wifi always on...
XDA ♥
Click to expand...
Click to collapse
The topic been active in other threads so that's why the OP is taking this up I believe.
casiocas said:
Hey all!
Just started this thread to explain something about SOD and phone SHUT DOWNS by itself.
I was NEVER BEFORE have these problems, like SOD or SHUT DOWN phone by itself, till now. I sure that it was related to one WIFI program, what I downloaded yesterday(Unlock With Wifi). Today I activated the app and I have phone SHUT DOWN by itself, like 3 times in hour. If I disabled the app, I solved the problem(for now I already UNINSTALLED that app).
Now I sure, that our SOD and S.DOWN problem not hardware problem, but SOFTWARE related problem.
I want to say you all, who have SOD or S.D...., look what app you have installed(what can use wifi) or in phone settings and try several times to configure your wifi(one of most: dont but your wifi to sleep, when screen is OFF), untill you solve you problem.
If you too know some examples, from you experience, then share with us here!
THX for reading!
Hope it will HELP someone.
CHEERS!
Click to expand...
Click to collapse
I noticed that this problem is only for those who are using the older firmwares including XXKPH or the ROMs whose base are 2.3.4 KPH.
Haven't encountered this problem in the Samsung July 2011 release of 2.3.3 (KPN). But I guess, this is a good post for those who are still experiencing this.
For now, I'm just happy with KPN (that's why I'm not as active before here in the forums).
Before I flashed to 2.3.4 KPH, my Wifi worked flawlessly.
Now my Wifi reception is extremely limited (I have to be in direct line of sight to the router within 2 meters to be able to get a stable connection)
and
I get those dreaded SoDs (sleep of deaths).
My question:
Is it possible to flash only the modem file of 2.3.3 to try whether that works?
If yes, will my current system be wiped if I only flash the modem file?
kiudee said:
Before I flashed to 2.3.4 KPH, my Wifi worked flawlessly.
Now my Wifi reception is extremely limited (I have to be in direct line of sight to the router within 2 meters to be able to get a stable connection)
and
I get those dreaded SoDs (sleep of deaths).
My question:
Is it possible to flash only the modem file of 2.3.3 to try whether that works?
If yes, will my current system be wiped if I only flash the modem file?
Click to expand...
Click to collapse
If you don't use the video chat in Google Talk, then why not just flash 2.3.3 KPN?
The only new feature in 2.3.4 is the video chat in Google talk. Most bug fixes are now in the July 2011 release of 2.3.3 KPN.
Yes, I'm contemplating to do that.
But as I've spent a bit over a weeks time to set my system up, I would like to know if it's possible to just flash the modem without touching the already working system.
edit: I see KPN is a single file flash, so I won't be able to flash only the modem. Ok, backup and downgrade it is.
I've only experienced SOD once... But I always have wifi off. Just on when I'm going to use it. Afterwards I turn it off and good bye SOD issue
Sent from my GT-S5830B using XDA App
kiudee said:
Yes, I'm contemplating to do that.
But as I've spent a bit over a weeks time to set my system up, I would like to know if it's possible to just flash the modem without touching the already working system.
edit: I see KPN is a single file flash, so I won't be able to flash only the modem. Ok, backup and downgrade it is.
Click to expand...
Click to collapse
Hey!
Dont know exactly, but I think that you can restore your system settings and other system things, with TITANIUM BACKUP. Backup the ALL SYSTEM DATA in batch menu. Go to TITANIUM BACKUP>Menu>batch. Pick: backup all system data and RUN THE BATCH. After that, flash you ROM(what ever you want) and try to restore all system settings from TITANIUM B.. Ofcourse, what ever happens, I suggesting you do NANDROID BACKUP from CWM recovery, before you start anything. If nothing works(or **** happens), you can RESTORE ALL FROM NANDROID BACKUP.
CHEERS!
Update: I flashed 2.3.3 KPN and did a factory reset.
The SOD problems are gone now,
but
the bad wifi reception still remains. (Connection to router only works within an extremely close range)
If I cannot find a fix for this problem I might try out a froyo firmware.
Did anybody have a similar problem? Would really appreciate some hints.
kiudee said:
Update: I flashed 2.3.3 KPN and did a factory reset.
The SOD problems are gone now,
but
the bad wifi reception still remains. (Connection to router only works within an extremely close range)
If I cannot find a fix for this problem I might try out a froyo firmware.
Did anybody have a similar problem? Would really appreciate some hints.
Click to expand...
Click to collapse
Hey!
I think its not ROM-s problem. Try look your Router settings and phone settings. I think something is not right in PHONE or ROUTER settings. Not seen this kinde of problem YET, with ANY ROM. Try to look.
One question: dose you not DROP you phone or similar? I seen little problems can happen, even nothing SERIOUS was done(like speaker, wifi and other HARDWARE problems).
CHEERS!
kiudee said:
Update: I flashed 2.3.3 KPN and did a factory reset.
The SOD problems are gone now,
but
the bad wifi reception still remains. (Connection to router only works within an extremely close range)
If I cannot find a fix for this problem I might try out a froyo firmware.
Did anybody have a similar problem? Would really appreciate some hints.
Click to expand...
Click to collapse
Froyo will not help i think. I had all the mentioned problems in Froyo aswell. That's why i flashed to KPH and now KPN for eventually.
From my 3 days experience with Froyo i never experienced SOD.
I don have any sod problems.
BUT,sometimes my phone vibrates 3 times n then goes to Samsung bootlogo,den homescreen comes up n mediascanner starts.. (I ges this is called soft resetting)
Any solutions to get rid of this???
M in stock froyo rom..
Any help ll b appreciated...
Thanks
Sent from my GT-S5830 using Tapatalk
i had SOD with bluetooth turned on((((((((((((((((((((((((((
apps i downloaded are:
whatsapp
twitter
Facebook
im+ pro
dolphin browser
barcode reader
go launcher ex
my phone was rooted and running on 2.3.4 KPH. i had 3 SODs today but i never have any sods when i am at home. i have no idea which one(s) cause SOD.
today i flashed with coderom v2 (formatted sd and wiped internal memory and cache) i will see if sods keep on coming. if they do happen, then i am going to try KPN

Wifi/Radio Problems on cm10

The short of it is, my Wifi crapped out for reasons beyond my experiences thus far.
The long of it. I flashed epinter's 07/25/2012 Nightly and everything seemed to be working nicely, Wifi especially. Then today, out running errands and dropped my Atrix in my Car Dock and attempted to turn on Bluetooth for the first time since flashing, and the device froze then restarted. Once back up, I tried turning Wifi back on, and the device froze again and restarted. Thinking maybe the radio driver went south, I grabbed epinter's 07/27/2012 build (epinter-cm10-20120727_1846-UNOFFICIAL-olympus.zip), and still no luck. Back into Recovery, Wiping everything and also factory resetting then flashing twice over again, boot up, still no wifi, and if it manages to seemingly fire up, the device hangs and restarts.
Within the last 2 hours (Been at this for about 12 hours now.) I grabbed Jokersax's build (Beta 0.1.0), wiped/reset/flash twice as I have before. Now as I take a breath I noticed that the Wifi Icon came up in the Notification bar, but when I go into Settings and Scan, I see none of the Networks around me. I looked under Advanced and noticed that my MAC Address is 'Unavailable' nor am I showing an IP address, even though Wifi is saying 'On'. Verified on my Router, my Phone is not connected to it.
Odd Side note, installed aLogcat just to see if I could catch any errors, and it is not giving me anything, that is, I am not seeing any logs through the app. Most likely an unrelated issue, but still a tad annoying.
Everything else seems in order, including Mobile Data (Able to access Web Pages, Market/Play Store, receive email, etc.). Just Wifi pretty much 'Lights are on, but no one is Home.'. Any suggestions on next steps?
We discussed this issue over in some other threads and conclusion is that it's a hardware malfunction Ur broadcom chip is burned,many people (including me) had that problem.
Sent from my MB860 using xda app-developers app
I need to really work on my searching, tried several variations of 'atrix WiFi cm10' and could not pin down a related thread.
But back on topic, CRAP! What I was hoping was not the case. Thanks for the reply, will continue to dig for those threads and cross fingers the chip really is not fried (doubtful but hey, people can dream right?).
Thank you for the reply.
Sent from Xoom running cm10
try making a clean install and you'll se that you won't have that problem!
Stark5 said:
I need to really work on my searching, tried several variations of 'atrix WiFi cm10' and could not pin down a related thread.
But back on topic, CRAP! What I was hoping was not the case. Thanks for the reply, will continue to dig for those threads and cross fingers the chip really is not fried (doubtful but hey, people can dream right?).
Thank you for the reply.
Sent from Xoom running cm10
Click to expand...
Click to collapse
I can't search the threads right now as i am typing from my phone-search is limited to 20-30 posts... But keywords for ur search should be : "atrix wifi error" or "wifi and bluetooth error on atrix" Several forums have this kinda threads,not just xda unfortunately ... seems like it's very often malfunction on this lovely phone. I couldn't repair my previous atrix so i bought another one.
Sent from my MB860 using xda app-developers app
imarmand said:
try making a clean install and you'll se that you won't have that problem!
Click to expand...
Click to collapse
We're talking fastboot wipe kind of clean install? Going to give that a go as a last attempt, will post results here.
Glimmer of hope tonight, was discussing the problem with a friend, went to turn on WiFi and it actually scanned and connected for about 2 minutes before crapping out. This tells me there maybe life to the chip still. Now to get fastboot to connect and try a wipe and see what happens.
Sent from Xoom running cm10
Any news on this front? I am one of the afflicted as well.
I'm having a similar issue. though my BT works just fine, no delays, no errors, no intermittance.
Wifi, I can scan for networks just fine. i click on mine to connect. it shows connecting, noting that when it says connecting the signal shows 1 bar as compared to the full set of wifi bars when scanning, i am also right next to the AP. is tries connceting for about 20 seconds or so. then goes back to saying "saved" under the SSID, other networks showing "disabled" when this happens. i originally noticed this after flashing epinters cm10. i tried flashing 37p, 36p and 30p radios with no difference.
EDIT: also want to note that i HAVE disabled the "avoid poor connections" option. and have tried setting static IP.
I flashed the same and I am unable to get my wifi to work after clean wipe, radio install or anything else that I have tried. Could software have really burned up a wifi radio????
johnmartin1981 said:
I flashed the same and I am unable to get my wifi to work after clean wipe, radio install or anything else that I have tried. Could software have really burned up a wifi radio????
Click to expand...
Click to collapse
Mine works occasionally so I don't think the radio is dead. The rom just acts like it's not there most of the time and doesn't give a mac address. Sometimes it works though after a reboot. Would flashing a different radio help? My baseband version says N_01.77.37P
I had an IP and a MAC, but no wifi internet.
Using mobile data, I downloaded Set DNS and then enabled wifi, works fine.
Now it's working but mobile data is going very very slow, it took 5min to download Set DNS.
I have a skyrocket but the "no wifi" issue is probably the same - your not getting DNS
I'm going back to CM9 for now.
+1 wifi matter under CM10
Try rebooting the router.
Experienced same issue (unable to connect, showing full bars, dropping to 1 bar when connecting and never being able to complete a connection) rebooting my router has fixed the issue. I'm not technical but it might have to do with the DNS release for addresses .. in any case unplugging my router for a bit and restarting it fixed the issue for me.

Losing network signal while charging

I use a lot of internet sharing (wireless). I noticed that when I start charging battery my phone is dropping signal network after a while. When I switch the screen back on, signal comes back. it's very annoying and it doesn't happen when phone is not charging. At first I thought its rom/kernel/modem related but problem remains with different combinationsb of above.
Any suggestions on how to fix this issue?
Do your RIL and Baseband match?
Sent from my GT-I9100 using xda premium
UltimateAnas said:
Do your RIL and Baseband match?
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
I guess so. Usually I use modem provided with rom. It looks like phone was going to deep deep sleep that it even loses network service and it wakes up when screen turns on. But as I said it happenes only when charging and, I think, only when I use internet sharing.
edit:
just checked with getril app and it says unknown ril so cant really tell if they match. I've put a NEAT rom 3.5 just today and didn't have chance to check wheather it still there or not but i guess it will still be there.
Your RIL and modem can change. The modem is up to the rom maker, they decide which one to use wheras your RIL stays the same from what you had on stock rom, unless you changed it of course
Sent from my GT-I9100 using xda premium
First of all, sorry for asking the same question twice (http://forum.xda-developers.com/showthread.php?t=1489237), but this thread seems to describe my problem even better.
I am using the latest Cyanogenmod 10 nightly on my Galaxy i9100, and it appears as if I have a similar problem. When I start charging my battery, the signal usually drops after a while. This is quite annoying, because I use my phone as WLAN hotspot. Rebooting the phone (charger connected) does not solve the problem. Instead, I usually have to unplug the cable and after that the phone quickly picks up a signal again.. I also tried to switch the airplane mode on/off. But then I cannot switch the airplane mode off again, so something really seems to be hanging. In these situations, the baseband version shows 'unknown'.
I have just used the app GetRil to confirm that the Ril and baseband version are matching.
Has anybody solved this problem? Is this a hardware or software issue? Are there any things I could test or should I provide more information?
Thanks a lot in advance!
cahe228 said:
First of all, sorry for asking the same question twice (http://forum.xda-developers.com/showthread.php?t=1489237), but this thread seems to describe my problem even better.
I am using the latest Cyanogenmod 10 nightly on my Galaxy i9100, and it appears as if I have a similar problem. When I start charging my battery, the signal usually drops after a while. This is quite annoying, because I use my phone as WLAN hotspot. Rebooting the phone (charger connected) does not solve the problem. Instead, I usually have to unplug the cable and after that the phone quickly picks up a signal again.. I also tried to switch the airplane mode on/off. But then I cannot switch the airplane mode off again, so something really seems to be hanging. In these situations, the baseband version shows 'unknown'.
I have just used the app GetRil to confirm that the Ril and baseband version are matching.
Has anybody solved this problem? Is this a hardware or software issue? Are there any things I could test or should I provide more information?
Thanks a lot in advance!
Click to expand...
Click to collapse
Guys' though I've never experienced this issue with wi-fi hotspot, I do know why the wifi turns off when your phone is charging.
So to settings > wifi> press menu button> choose advanced
you'll see an option what says "keep wifi on during sleep" or something of sorts. The default is set to "never". You guys need to change it to "always".
Cheers
daxgirl said:
Guys' though I've never experienced this issue with wi-fi hotspot, I do know why the wifi turns off when your phone is charging.
So to settings > wifi> press menu button> choose advanced
you'll see an option what says "keep wifi on during sleep" or something of sorts. The default is set to "never". You guys need to change it to "always".
Cheers
Click to expand...
Click to collapse
Sorry for the confusion, but I think you got me wrong. It is not the WLAN connection that drops. It is the mobile network connection that drops, so I cannot make/receive calls or use the 3G connection anymore.
Update:
Didn't find solution, flashed back sammy stock rom with custom kernel and all problems vanished. Using stock rom since than and never had this problem again.
michal_alton said:
Update:
Didn't find solution, flashed back sammy stock rom with custom kernel and all problems vanished. Using stock rom since than and never had this problem again.
Click to expand...
Click to collapse
Just for the records: I could also solve this issue by flashing a stock rom again. This must be a problem of Cyanogenmod.
Cahe228
I have same problem of continuous network lost while charging. Have have figured it?? Any solutions?
cahe228 said:
First of all, sorry for asking the same question twice (http://forum.xda-developers.com/showthread.php?t=1489237), but this thread seems to describe my problem even better.
I am using the latest Cyanogenmod 10 nightly on my Galaxy i9100, and it appears as if I have a similar problem. When I start charging my battery, the signal usually drops after a while. This is quite annoying, because I use my phone as WLAN hotspot. Rebooting the phone (charger connected) does not solve the problem. Instead, I usually have to unplug the cable and after that the phone quickly picks up a signal again.. I also tried to switch the airplane mode on/off. But then I cannot switch the airplane mode off again, so something really seems to be hanging. In these situations, the baseband version shows 'unknown'.
I have just used the app GetRil to confirm that the Ril and baseband version are matching.
Has anybody solved this problem? Is this a hardware or software issue? Are there any things I could test or should I provide more information?
Thanks a lot in advance!
Click to expand...
Click to collapse
I had this problem too and all I had to do was turn off fast charging in the settings
I think it turns off or lowers the strength of the network so it could charge faster and that's why it does this
I don't know much about tech so it might only help with my phone ( which is the Samsung a12 ) but I also hope it helps you too
Good luck

[Fixed] WiFi Issue On Venom

I am having a peculiar issue. My Wi-Fi drops out and then reconnects every 30-45 minutes or so. I have the latest version of the ROM, flashed the boot.img in the thread, but it still doesn't fix my issue. It doesn't matter how far I am away from the signal, it just drops out temporarily, and then reconnects. I can't explain it. Other than that, it seems to be working great, but before I rooted and flashed, I never had any issues of any kind with the WiFi.
Also, it may be worth noting that I don't know for sure yet, but it may also turn on the WiFi automatically even though I have it set not to. Sometimes when I am out and about, I'll get a popup saying that WiFi networks were found nearby, do you want to connect etc...
Any help will be appreciated, I love this ROM and can't see myself going back on stock but this is a pretty cumbersome issue...
Re: WiFi Issue On Venom
Have you tried it out on other routers?
And fir the asking to join networks, there is a setting in wifi>advance for that.
Sent from my HTC6435LVW using xda app-developers app
About the only thing that I haven't tried is another router, but the other devices on the network don't seem to be having any issues. Then again, it is an Airport, so...Yeah, I won't fully know until I get a chance to test it elsewhere...
But I know about the advanced setting and have it disabled. That's why I'm wondering it its something in the ROM or something that I did wrong that it keeps trying to come come back. My guess is that it's disconnecting the mobile network and resetting it, just as it is doing on the WiFi...
Update
Just in case someone else runs into this issue, the problem was with an app that I used to change my host name. It would intermittently interrupt my connection trying to do that. I uninstalled it and edited my build.prop file the old fashioned way. The issue didn't have anything to do with Venom, just the fact that I had rooted and tried new things.
Thanks for your help!
This was the app that caused the issue: https://play.google.com/store/apps/details?id=com.tiranodroid.change.hostname
AYHJA said:
Just in case someone else runs into this issue, the problem was with an app that I used to change my host name. It would intermittently interrupt my connection trying to do that. I uninstalled it and edited my build.prop file the old fashioned way. The issue didn't have anything to do with Venom, just the fact that I had rooted and tried new things.
Thanks for your help!
Click to expand...
Click to collapse
Can you please go to the advanced editing options and change the name of your thread and place "Fixed" in there so people can reference it, if need, and what app it was. Thanks.

[Q] Wifi and Wifi Tether Issues

So over the last few months I've been having an issue with my wifi. Whenever I try to turn it on it says "wifi turning on" but never fully turns on. It remains stuck in this state even with a factory/data reset and on different ROMs. I've tried fixing with an RUU but it still occurs. Sometimes the wifi will turn on at random but if it is turned off it will not come back on. I've looked through the forums and seen some similar issues but haven't seen a solution or a cause. If anyone has any information on this issue that would be great.
My second question is on the wifi hotspot on different roms. I'm currently running infection (which is great btw) but cannot seem to get the built in hotspot to work. It will usually turn on the first time I start the run but after a restart it will not come back on, it will also just say turning on but never become available for connection. I've also given various tether apps a try but with no luck.
I am rooted, S-off, and on the 4.03.605.2 RUU currently
Thank you to whoever can provide any help on how to fix these issues or any known work-arounds. Sorry about the wall of text
I am in the same boat man. I wish someone could fix this.
I really don't know how to help the OP, being S-OFF all the things I can mention would be handled in the RUU process.
dbrown081584 you didn't really give any information on your circumstance or specific issues, what ROM, S-ON/OFF state, firmware, etc. are you running?
http://forum.xda-developers.com/showthread.php?p=44059096
Wireless tether rezound
I shared my WiFi Tether app settings in that thread. I have since unchecked the box for Send Netd Max Client Cmd because it was causing problems.
Good luck.
Sent from my MB886 using xda premium

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