[Q] My GS2 cant find my wireless router - Galaxy S II Q&A, Help & Troubleshooting

================= SOLVED =======================
Hi this problem just happened 2 days ago. When I turn on my GS2 wifi it say scanning but returns nothing afterward eventhough I sit right next to my router. What I have tried are.
1. Try connecting to other router at my workplace still returns nothing after scan
2. Other people's phone doesnt have this problem with both router.
3. I tried open portable wifi hotspot from my GS2 and other people's phone can see it and connect no problem.
4. I install wifi fixer app from google play. It says wifi enabled but scanning still returns nothing.
5. There was no problem between my GS2 and both routers before. And I used it everyday.
6. Resetting router didnt fix it.
Any suggestion?
This is my phone info
Model : GT-I9100
Android Version : 4.0.4
Baseband : I9100DXLPB
Kernel Version : 3.0.31-Siyah-s2-v5.0.1
Rom : eRobot ICS ROM V.24

Since other people can connect to your router, it's probably a problem with your phone. Have you tried factory resetting? Maybe you can upgrade to jelly bean?

Dakura said:
Since other people can connect to your router, it's probably a problem with your phone. Have you tried factory resetting? Maybe you can upgrade to jelly bean?
Click to expand...
Click to collapse
I'm exploring for other option but if it there is none then I guess I'll try with factory reset. In that case should I wipe cache too?

zethanas said:
I'm exploring for other option but if it there is none then I guess I'll try with factory reset. In that case should I wipe cache too?
Click to expand...
Click to collapse
Yes, you should. You can also wipe dalvik cache. Or just nuke your phone, it will delete everything itself: http://forum.xda-developers.com/showthread.php?t=2100558

Dakura said:
Yes, you should. You can also wipe dalvik cache. Or just nuke your phone, it will delete everything itself: http://forum.xda-developers.com/showthread.php?t=2100558
Click to expand...
Click to collapse
Ok I use GSROM reset in your link and it worked like charm. thank you all. My wifi is working properly again :fingers-crossed:

Related

(SOLVED) i9100 not connecting to data automatically

I have tried with different roms and different modems and my phone always does the same thing: When it should connect to mobile data network, it just doesn't.... i have to reboot the phone for it to get data connectivity....
The APN configuration seems to be ok, they are the default ones of my carrier....
This has been happening when i was using MIUI and still happens with CM9..... its weird because no matter which modem i install, i have the same issue and the same way to solve it..... any ideas?
GFXi0N said:
I have tried with different roms and different modems and my phone always does the same thing: When it should connect to mobile data network, it just doesn't.... i have to reboot the phone for it to get data connectivity....
The APN configuration seems to be ok, they are the default ones of my carrier....
This has been happening when i was using MIUI and still happens with CM9..... its weird because no matter which modem i install, i have the same issue and the same way to solve it..... any ideas?
Click to expand...
Click to collapse
Maybe you have already checked it:
There is an option in settings menu for mobile data connections, which you have to enable.
If that is enabled, but still not connecting, try to wipe cache and Dalvik cache in recovery.
Good luck !
It_ler said:
Maybe you have already checked it:
There is an option in settings menu for mobile data connections, which you have to enable.
If that is enabled, but still not connecting, try to wipe cache and Dalvik cache in recovery.
Good luck !
Click to expand...
Click to collapse
Well, that option is enabled all the time... :/
The weird thing is.... why after rebooting it just works?
GFXi0N said:
Well, that option is enabled all the time... :/
The weird thing is.... why after rebooting it just works?
Click to expand...
Click to collapse
Maybe you need to contact you service provider and reinstall APN settings on you phone?
I thought the default ones were the good ones..... i will try phoning them and see if its an APN configuration issue... thanks!
This can't be.... its still not working after i entered the APN info by hand.....
I don't know what else to try...
LP7 Modem.... just did the trick... most stable modem for me.... i didn't lose connection in all the day, since i flashed it...

GTi9300 wifi reconnect problem help plz.

Hello everyone,
I have a problem with my samsung galaxy s3 gt i9300 global version with wifi.
Hier's the thing. When i connect to my home router after 2 minutes its start to reconnect. Specialy when i play games its starting to be frustrating for me. Even when i connect to another router this anoying thing hapens. Ive tried every solution abd suggestion that i find on this forums and all internet but nothing ...(for example *#0011# in service mode i switch off wifi power saving nothing. Ive allsou tried to download wifi fixer and nothing... In my wifi settings during sleep is on "always". I allsou tried to download custom roms...and official roms with difrent kernels...im now on JellyBean but this thing simply hapens. Even now my wifi reconnect wgen im posting this thread.
Samsung Galaxy S3 GTi9300 Montenegro Mtel.
Plz help
And sorry for my bad english.
Rummi1986 said:
Hello everyone,
I have a problem with my samsung galaxy s3 gt i9300 global version with wifi.
Hier's the thing. When i connect to my home router after 2 minutes its start to reconnect. Specialy when i play games its starting to be frustrating for me. Even when i connect to another router this anoying thing hapens. Ive tried every solution abd suggestion that i find on this forums and all internet but nothing ...(for example *#0011# in service mode i switch off wifi power saving nothing. Ive allsou tried to download wifi fixer and nothing... In my wifi settings during sleep is on "always". I allsou tried to download custom roms...and official roms with difrent kernels...im now on JellyBean but this thing simply hapens. Even now my wifi reconnect wgen im posting this thread.
Samsung Galaxy S3 GTi9300 Montenegro Mtel.
Plz help
And sorry for my bad english.
Click to expand...
Click to collapse
Same here, I'm using the Stock ROM and my wifi keeps reconnecting it self even the signal is strong, and I still try to look for the solution. Please let us know if you work out the best solution to fix this problem.
I was having this problem, a firmware update for me did fix it though, but I couldn't connect to my home network for more then a couple of minutes and wifi fixers wouldnt do anything. But any other network was fine.
My home network is hidden so I think that was the problem, the phone not liking hidden networks.
Is yours hidden or not? Else I'd say try a factory reset if you havn't already.
Solution
superfilm968 said:
Same here, I'm using the Stock ROM and my wifi keeps reconnecting it self even the signal is strong, and I still try to look for the solution. Please let us know if you work out the best solution to fix this problem.
Click to expand...
Click to collapse
Ok i think that i found solution. Hier's the thing:
First install original first firmware i mean on ice cream sandwich via Odin. After that do wipe and reset allsou clear cache.
Thats the 1st step.
Second go to sammobile and dowoad the latest version of jellybean. (Allsou via Odin).
XXDLI4 ( i cant post a links because i dont have 10more posts.
After installation do wipe / factory reset + clear cache.
Do not install jelly bean on jelly bean .( i dont know why but you must do like i said )
1st: ice cream sandwich + wipe factory + clear cache
2nd: jelly bean + wipe factory + clear cache
fix!!
Rummi1986 said:
Ok i think that i found solution. Hier's the thing:
First install original first firmware i mean on ice cream sandwich via Odin. After that do wipe and reset allsou clear cache.
Thats the 1st step.
Second go to sammobile and dowoad the latest version of jellybean. (Allsou via Odin).
XXDLI4 ( i cant post a links because i dont have 10more posts.
After installation do wipe / factory reset + clear cache.
Do not install jelly bean on jelly bean .( i dont know why but you must do like i said )
1st: ice cream sandwich + wipe factory + clear cache
2nd: jelly bean + wipe factory + clear cache
Click to expand...
Click to collapse
Edit!!!
This is even better, delete all your saved connection in wifi settings..forget yours to.
Than connect again.
This is the original text from thread that i found:
"Mine never pops up. (Anymore) It did for one day after I used Wi-Fi once and the connection was saved to my Wi-Fi list. Then when I had Wi-Fi turned off & wasn't using it, that pop up would appear. Once I went in and deleted the saved connection, I haven't had that popup return. My wife did the same with the same results. "
This worked for me, plz answer if u fixed this prob.

[Q] Galaxy S2 unable to register to network, no signal

Hi,
I'm facing this major problem with my handset.
When I insert a SIM card to my mobile, it registers with the network (VODAFONE IN) with signal strength of 12asu and then gradually decreases to 5asu and then 1asu when my phone shows no signal afterwards. The carrier is shown as Unknown and service as out of service.
If I put the same SIM in another phone, it works. So no problem with the SIM or Network.
I have tried the following:
1) Flashed various modems
2) Flashed various ROMS (CM9, CM10, Official Stock)
3) Did complete WIPE. Factory Reset, Clear cache, Clear Dalvik cache, Format /system
4) I also restored by efs to a backup I had of my efs(taken when I first got the phone in 2011).
5) Also used Repair Galaxy S2 app which basically fixes RW permissions of the EFS folder.
6) Also used EFS Pro to repair my .nav files
7) Also used GetRIL tool to check if the drivers are matching.
Even after doing everything, the problem is same. When I first insert the sim card, it gets signal for around 5 minutes and then suddenly it goes to 1asu with no signal forever. I also kept my phone as it is for one whole day, but nothing: my phone is unreachable and there's no signal.
I had never dropped my phone and possibility of any physical damage to the receiver is very low.
The only reason I can see is this:
I was on DilDroid ICS and everything was fine until one day, I went to Recovery and fixed permissions. (Btw, DilDroid ICS used Siyah kernal)
And I think that was the last thing I did after which my phone couldn't receive signals.
I think some files have been corrupted and even after factory reset etc. it remains and the next time I flash another ROM, the files are still there.
Can someone tell me a way to completely clean my galaxy s2 and then start off by flashing a new ROM.
Or any other solution. Kindly help.
deathfrag said:
Hi,
I'm facing this major problem with my handset.
When I insert a SIM card to my mobile, it registers with the network (VODAFONE IN) with signal strength of 12asu and then gradually decreases to 5asu and then 1asu when my phone shows no signal afterwards. The carrier is shown as Unknown and service as out of service.
If I put the same SIM in another phone, it works. So no problem with the SIM or Network.
I have tried the following:
1) Flashed various modems
2) Flashed various ROMS (CM9, CM10, Official Stock)
3) Did complete WIPE. Factory Reset, Clear cache, Clear Dalvik cache, Format /system
4) I also restored by efs to a backup I had of my efs(taken when I first got the phone in 2011).
5) Also used Repair Galaxy S2 app which basically fixes RW permissions of the EFS folder.
6) Also used EFS Pro to repair my .nav files
7) Also used GetRIL tool to check if the drivers are matching.
Even after doing everything, the problem is same. When I first insert the sim card, it gets signal for around 5 minutes and then suddenly it goes to 1asu with no signal forever. I also kept my phone as it is for one whole day, but nothing: my phone is unreachable and there's no signal.
I had never dropped my phone and possibility of any physical damage to the receiver is very low.
The only reason I can see is this:
I was on DilDroid ICS and everything was fine until one day, I went to Recovery and fixed permissions. (Btw, DilDroid ICS used Siyah kernal)
And I think that was the last thing I did after which my phone couldn't receive signals.
I think some files have been corrupted and even after factory reset etc. it remains and the next time I flash another ROM, the files are still there.
Can someone tell me a way to completely clean my galaxy s2 and then start off by flashing a new ROM.
Or any other solution. Kindly help.
Click to expand...
Click to collapse
do a full wipe and install another rom and see
1) Wipe data/Factory reset
2) go to 'mounts and storage' and wipe data and system there.
3)wipe Cache partition as well as Dalvik in advance.
then install the rom zip file
and again do all wipes except system and then check for issue's
ps- before that try with a different netwrk sim on the phone and see if the issue persists or not
Sun90 said:
do a full wipe and install another rom and see
1) Wipe data/Factory reset
2) go to 'mounts and storage' and wipe data and system there.
3)wipe Cache partition as well as Dalvik in advance.
then install the rom zip file
and again do all wipes except system and then check for issue's
ps- before that try with a different network sim on the phone and see if the issue persists or not
Click to expand...
Click to collapse
Hi Sun90,
I've tried flashing different ROM after complete wipe. I also wiped system. But never wiped data. Doing it now.
-----
update:
I tried your approach, but still facing the same problem. Please help.
Hello everyone.
I got exactly the same problem. I had my I9100 for over a year. I flashed lots of roms. Now i got this problem. I cannot connect to the service of my carrier. I got realy bad connection or no connection at all. The sim works on different Galaxys and its not a problem with the apn and or my IMEI. Evereything is ok there.
what have I done so far:
flashed several roms
flashed several modems
went back to original rom
several whipes
Now I have a nice MP3 player with some WIFI at home
What im thinkin about could be the problem but I dont know how to fix it:
I think i got a wrong CSC and there is something rotten with my partitions...
deathfrag said:
Hi Sun90,
I've tried flashing different ROM after complete wipe. I also wiped system. But never wiped data. Doing it now.
-----
update:
I tried your approach, but still facing the same problem. Please help.
Click to expand...
Click to collapse
Aton88 said:
Hello everyone.
I got exactly the same problem. I had my I9100 for over a year. I flashed lots of roms. Now i got this problem. I cannot connect to the service of my carrier. I got realy bad service or no service at all. The sim works on different Galaxys and its not a problem with the apn.
what have I done so far:
flashed several roms
flashed several modems
went back to original rom
several whipes
Now I have a nice MP3 player with some WIFI at home
Click to expand...
Click to collapse
have u guys tried with a differnet netwrk's Sim other than the one ur into and checked for the same issue?
Sun90 said:
have u guys tried with a differnet netwrk's Sim other than the one ur into and checked for the same issue?
Click to expand...
Click to collapse
Haven't tried that, but what will that prove? My SIM works perfectly okay on different mobile.
Sun90 said:
have u guys tried with a differnet netwrk's Sim other than the one ur into and checked for the same issue?
Click to expand...
Click to collapse
yes i tried another networks's sim as well. sim was recognised. sim-pin ok. but no service/connection. on manual carrier choice the galaxy said something like connected to service. but there is no internet and if i try to make a call there is the "no service" popup again.
i dont think its a problem with the HW because sometimes i see the different carriers. i just cannot connect to them!
as I said before: I think its a SW problem around CSC and/or somethin is ****ed up with my phones partitions...
Aton88 said:
yes i tried another networks's sim as well. sim was recognised. sim-pin ok. but no service/connection. on manual carrier choice the galaxy said something like connected to service. but there is no internet and if i try to make a call there is the "no service" popup again.
i dont think its a problem with the HW because sometimes i see the different carriers. i just cannot connect to them!
Click to expand...
Click to collapse
That's true. If I sometime connect to my network, I can quickly make a call & for the duration of the call, it remains okay. Pretty strange. I can goto flight mode and then back and sometimes I get the signals back for around 2-3 minutes before again going to no signal.
@Aton88, Were you by any chance on Siyah kernal or DilDroid ROM or went outside India? Just asking. Trying to find a pattern here.
deathfrag said:
Haven't tried that, but what will that prove? My SIM works perfectly okay on different mobile.
Click to expand...
Click to collapse
rather trying to know whether it prove a thing' isn't of much importance compared to giving it a try and see for any hardware issue
Sun90 said:
rather trying to know whether it prove a thing' isn't of much importance compared to giving it a try and see for any hardware issue
Click to expand...
Click to collapse
That's true, I'll try that with my friend's SIM tomorrow. Sorry, I didn't mean to offend you.
deathfrag said:
That's true, I'll try that with my friend's SIM tomorrow. Sorry, I didn't mean to offend you.
Click to expand...
Click to collapse
yeh sure, give it a try
and by the way creating more threads for the same issue doesn't bring about any goodthing to u for sure, hence stick to the rules of XDA, rather than doing this and getting Infracted by the mods for the same
take my words this is for ur own good
Sun90 said:
yeh sure, give it a try
and by the way creating more threads for the same issue doesn't bring about any goodthing to u for sure, hence stick to the rules of XDA, rather than doing this and getting Infracted by the mods for the same
take my words this is for ur own good
Click to expand...
Click to collapse
Thanks for the advice. I shall make sure I don't create duplicate threads. Btw, I even checked if my phone is locked but it's not. Everything is OFF.
I even checked the validity of my IMEI and it seems to be valid.
I'm really running out of ideas to check what's wrong.
I tried a different provider's SIM and even that doesn't work.
Can someone tell me how to do a complete clean install.
Are these steps complete or any steps are missing:
1. Factory Reset
2. Clear cache
3. Clear Dalvik Cache
4. Clear Battery stats
5. Wipe /system
6. Wipe /data
Then Goto Odin: Flash the official Stock Firmware for India.
Am i missing anything? I want a complete WIPE, so that no previous corrupted files are present. Please help.
deathfrag said:
I tried a different provider's SIM and even that doesn't work.
Can someone tell me how to do a complete clean install.
Are these steps complete or any steps are missing:
1. Factory Reset
2. Clear cache
3. Clear Dalvik Cache
4. Clear Battery stats
5. Wipe /system
6. Wipe /data
Then Goto Odin: Flash the official Stock Firmware for India.
Am i missing anything? I want a complete WIPE, so that no previous corrupted files are present. Please help.
Click to expand...
Click to collapse
u can give it a try with those steps but no4 is not necessary
i have a similar problem.....in the about section my network is displayed correctly but under "service state" it says out of service... BUT the internet works fine....when i try to make a call it says "not registered on network" ...the sim works fine in other phones.....the IMEI is also fine.
heres what i have tried :
1) change sim card
2) change roms
3) go back to stock GB that phone came with
4)wipes (all)
now i think i messed up something with the ril cause i changed it and i think thats where the problem started.
i got backups of the efs but i dont wana go there unless absolutely sure that the problem is there.
(is there a way to i dont know like check the integrity of tue efs or something)
I'm having a similar problem with my s2
Sent from my X10i using xda premium
if someon could plz check this for me.
i went into the service mode menu *#197328640#..then option 2 which is version info ...then option 1 which is SW version....then option 1 which is READ IMEI ...now when i selected that it said IMEI :NOT SUPPORTED
i dont know if thats normal...so if someone could please try this and let me know..i would be extremely thankful
ok so i did a lil experiment :
i purposely messed up my IMEI to that generic one with lots of zeros ...and suprisingly the calling function is back and i can use the phone normally except ofcourse the fact that the IMEI is messed....
Then i restored to get my own IMEI ...and together with my IMEI ..the problem came back too....
(oh and once again if someone could plz confirm the thing i asked about in previous post thanks)
My imei says not supported "/
Sent from my X10i using xda premium
Network signal issues
Have you tried checking network operators and manually searching and selecting the Network provider?
also have you tried flashing a different radio ?
regards

[Q] Help needed. Unknown baseband with wifi not connecting to internet

Hi there, being a newbie here.
My i9100 has an unknown baseband along with no signal and no IMEI when i soft reboot my phone, but mobile signal will return once i have removed my battery. Also, when I connect to wifi, it appears to be connecting normally, but it is not connecting to the internet.
i just recently flashed to cm9 stable, using siyah 4.1.5.
Any clue on what happened?
Thanks in advance~
superchic9527 said:
Hi there, being a newbie here.
My i9100 has an unknown baseband along with no signal and no IMEI when i soft reboot my phone, but mobile signal will return once i have removed my battery. Also, when I connect to wifi, it appears to be connecting normally, but it is not connecting to the internet.
i just recently flashed to cm9 stable, using siyah 4.1.5.
Any clue on what happened?
Thanks in advance~
Click to expand...
Click to collapse
check this page...http://forum.xda-developers.com/showthread.php?t=1645678
There's a known 'Unknown baseband' bug when you charge the phone and flash new roms. Take out the battery for 180 seconds. Put it back in. Go into recovery wipe cache, format cache, wipe dalvik cache. Reboot. See if it works.
slimlo said:
check this page...http://forum.xda-developers.com/showthread.php?t=1645678
There's a known 'Unknown baseband' bug when you charge the phone and flash new roms. Take out the battery for 180 seconds. Put it back in. Go into recovery wipe cache, format cache, wipe dalvik cache. Reboot. See if it works.
Click to expand...
Click to collapse
I just tried, no luck. Right after i do all the stuff IMEI,signal, and baseband seem working fine, but once i do a reboot all the stuff were gone again and need to remove the battery to get those back.

Wifi problem

Hello guys!
I ran into a problem that bugs me for already 2 days. Yesterday my girlfriend's phone (S3) received an update. She was already on 4.3 so I do not know what the update was for. What happen after the update was downloaded and installed was that she couldn't access internet using wifi anymore. Mobile data seems to work, but wifi doesn't.
I told her to try the following but nothing changed:
1.Restart the phone.
2.Forget the network and reconnect.
3.Download "Wifi fixer" (when she did this she told me she accessed google...but then nothing worked anymore)
It is weird because she can access 192.169.0.1.
She also tried to connect to another wifi and she told me same thing happend so I assume is something about the phone.
This problem really starts to bug me a lot because I tried to search for a sollution but I found nothing that could fix the problem.
I am waiting for your suggestions.
Have a nice day,
Ilie Mihai
Usual steps to try: clear cache in recovery, factory reset, flash firmware with odin.
boomboomer said:
Usual steps to try: clear cache in recovery, factory reset, flash firmware with odin.
Click to expand...
Click to collapse
Could you, please, guide me on how to clear the cache in recovery before I do anything else?
Thanks for your reply,
Ilie Mihai
UPDATE: Okay, I figured it out how to enter in recovery mode...I'll try that and I'll let you know if it worked.
By the way...I forgot to mention. Factory reset is not quite possible at the moment since her computer is away for some repairs and she cannot access one for a while.
I am still waiting for more suggestions.
Thank you!
Ilie Mihai said:
I am still waiting for more suggestions.
Click to expand...
Click to collapse
Do you get an IP, DNS and default route? Does ping or any other service work?
Does she maybe use a firewall?
There are many things to try out before simply resetting the phone.

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