[Q] Wifi Problem ! - Galaxy S II Q&A, Help & Troubleshooting

Hey guys !
To begin with, I have searched and searched and have not been able to get help.
Phone stats :
Model GT - I9100
Android - 2.3.5
Baseband:
XXKI4
The problem is, I turn on wifi, it scans, then turns off. I have tried adding a wifi and it comes up "unable to save the network".
I got this phone 2 days ago from a friend.
Mac address and IP address are listed as "Unavailable" in advances settings.
PLEASE HELP!

Tried a hard reset?

Thanks for a quick reply !
I have tried:
Power button and home button (holding)
Factory reset. (Home + Power + Volume up)
Are either of them classified as a "hard reset"
I'm sorry, I am very new to android and have just moved over from apple. Not looking to go back just hoping to clear up this issue !

Yeah, that's one way to do one.
You should try updating your device. Your firmware is pretty outdated.
Either with KIES (crap software, but simple - you know, just like iOS ;-) ) or Odin/Heimdall (little harder, but works for sure).
Tell me if you need help.

Hey, updated to ICS using odin after researching all about roms and kernals and what not.
It did fix the issue of the phone constantly in a loop of turning itself off (HOORAY). Wifi is still not working

Then try a Rom that isn't based on Samsung's. Flash the resurrection edition of CM9 via Odin and after that the latest nightly via cwm. It's worth a shot, as CM comes with its own kernel and such.
If it's working under CM it was some sort of software fault and we can try to figure it out (unless you want to stick with CM).
If it doesn't, it looks like a hardware fault and I cannot help you.

Related

[Q] WPA + AES = problem ?

Hi everyone.
I have recently upgraded my SGA from original 2.2.1 to 2.3.3 XXKPE and i have detected an issue when i try to use the WPA + AES combination. The phone detects the wifi but it tries to validate the password a few times and then it is disconnected...
When i tried to connect with the older firmware (Froyo 2.2.1) i could connect the first time but when i lost the connectivity my wifi changed it's state to error and the only way to reconnect was restarting the phone.
No issue detected with WEP or WPA + TKIP.
Anyone else has the same problem? If not, can you tell me your firmware version?
Many thanks in advance
Same situation: S5830 + ASUS WL500W works only with WPA TKIP. But with TKIP speed is limited to 54mbps. Android OS 2.3.4
Just picked up a Samsung Galaxy Ace running stock Android 2.3.4 (baseband S5830LUBKP7, kernel 2.6.35.7-perf-CL366939 [email protected] #1), and seem to be having this same problem.
My home wifi is set to WPA2 Personal+AES, and when the correct passphrase is entered, the Ace just continuously cycles through "Connecting... Disconnected", over and over.
If I drop back to WPA Personal+AES, I get the exact same thing. *However*, if I drop to WPA Personal+TKIP, the phone connects immediately.
I really don't want to use TKIP, as it has known exploits. Is there a known FOTA update for a US-market, unbranded Galaxy Ace that fixes this, or is there any known workaround except "don't use AES"?
try DDKQ6
after flashing DDQK6, reboot phone and enter PIN
then reboot again but in recovery and install CWM5
reboot and wipe data/cache/dalvik and reboot
evilxdeadly said:
try DDKQ6
after flashing DDQK6, reboot phone and enter PIN
then reboot again but in recovery and install CWM5
reboot and wipe data/cache/dalvik and reboot
Click to expand...
Click to collapse
Thanks for the info. I'm new to flashing phones, would kinda like to stay stock if possible, since this is my wife's phone, not my own. Am I correct in thinking DDQK6 is an Indian firmware? If so, what would differ from US-market firmware, and would I potentially lose any features or cause any unusual behavior by switching to it?
knoxploration said:
Thanks for the info. I'm new to flashing phones, would kinda like to stay stock if possible, since this is my wife's phone, not my own. Am I correct in thinking DDQK6 is an Indian firmware? If so, what would differ from US-market firmware, and would I potentially lose any features or cause any unusual behavior by switching to it?
Click to expand...
Click to collapse
Just update it over the air from setting -> about/phone -> update.
Make sure you have backed up the data like contacts and sms.
Hey, hey!! Problem with wifi? I'm an expert on this But I came with bad news, though.
What I found out:
There's indeed a bug that prevents us from connecting to this kind of wireless (eduroam, in my case). Everything seems to come from a buggy version of wpa_supplicant, everything goes well but then, in the second phase, it seems to "forget" the password or something (I'm not an expert, sorry, can't explain any better) I've been trying to change it, but no luck.
I've tried most of the stock firmwares, and custom roms as well. No luck, still the same bug.
There's an app that claims to fix the problem. wifi ace if I remember well (advanced config editor). But it didn't fix anything for me. You may want to give it a try.
I was expecting for samsung to fix it, but I've lost my faith on it. Neither google seems to be doing anything, as the bug remains on android 4.0.
I can provide you with some links, in case you want to read more about. And please, let me know if you find something.
http://forum.xda-developers.com/showthread.php?t=1255245
http://code.google.com/p/android/issues/detail?id=15631
[More in Spanish. I'm not posting it since they say more or less the same]
alexnm said:
Hey, hey!! Problem with wifi? I'm an expert on this But I came with bad news, though.
What I found out:
There's indeed a bug that prevents us from connecting to this kind of wireless (eduroam, in my case). Everything seems to come from a buggy version of wpa_supplicant, everything goes well but then, in the second phase, it seems to "forget" the password or something (I'm not an expert, sorry, can't explain any better) I've been trying to change it, but no luck.
I've tried most of the stock firmwares, and custom roms as well. No luck, still the same bug.
There's an app that claims to fix the problem. wifi ace if I remember well (advanced config editor). But it didn't fix anything for me. You may want to give it a try.
I was expecting for samsung to fix it, but I've lost my faith on it. Neither google seems to be doing anything, as the bug remains on android 4.0.
I can provide you with some links, in case you want to read more about. And please, let me know if you find something.
http://forum.xda-developers.com/showthread.php?t=1255245
http://code.google.com/p/android/issues/detail?id=15631
[More in Spanish. I'm not posting it since they say more or less the same]
Click to expand...
Click to collapse
Check the OP date?
Oops, didn't see that, sorry :$
alexnm said:
Oops, didn't see that, sorry :$
Click to expand...
Click to collapse
No need to be sorry. You're replying to a thread that's current, in that I replied to it with my own problem. (And I did so because it was the only thread that came up in the Ace forum on a search for AES, which seems to be specific to the problem. Didn't seem to make sense to start a new thread when this one covers the same topic.)

[Q] WiFi Error, not allowing connection after Litening Rom installation

Hi guys
I recently put Litening Rom 1.5 on my SGS 2.
Prior to this the WiFi was working fine and I believe shortly thereafter (can't be sure). Now though the phone defaults to 3G. Under Settings > Wireless and Network > Wi-Fi settings the Wi-Fi box is unchecked with the word "error" underneath "WiFi". Whenever you try checking it, it says "turning on" for about 10seconds before returning to "error".
Anyone else experienced this or any suggestions, all pointers very much appreciated?
Thank you
flash back your CF-Root and your wifi should be working again...
Will try that when I get back home.
Does this mean though that I can't have Litening 1.5? I've not heard of other people experiencing this. The file I oriinally downloaded had 4 parts. Three were pretty obvious in terms of where to sync with Odin i.e. had CSC in the title, TAR file and one called PIT. However, I presumed I should insert all 4 in the relevant boxes of Odin. Was this wrong?
Thaks for the advise so far.
no you can use litening....your step is correct...just try to flash back your cf-root if u using for rooting.....
btw couple of user have same problem in which after flashing modified rom sometimes the wifi not working....so when they flash back cf-root kernel, wifi works again
gchildz said:
... couple of user have same problem in which after flashing modified rom sometimes the wifi not working....so when they flash back cf-root kernel, wifi works again
Click to expand...
Click to collapse
+1 for me. reflashing kernel worked fine
Hmmm!
Well the good news is that reflashing the CF Root worked and I got the WiFi back again. The bad news is, that when I put the phone down and picked it up again 20 mins later, it had gone back to it's old bad habits.
Tried reflashing CF Root again but this time no result.
Looking through the phone I'm wondering if it could be either a confliction between system operations or a dodgy app (less likely this one).
The reason I say this is because at present I have to ways of quickly turning Wi-Fi on and off. 1 is the swipe down action from the top of the home screen, which gives the Litening Blue toggling buttons and the other is residing on my 2nd home screen which are the green toggling buttons which were their before Litening. I could be wrong but both with the problem occurring are not illuminated. Attempting turn WiFi on only illuminates one of these temporarily. Therefore just wondering if on is cancelling out the other?
What would you suggest trying next, perhaps Villian Rom incase it's a Litening thing? If not, any other setting I should try adjusting both on the SGS2 or in Odin etc
i believe your issue is down to installing a corrupt rom...why i say corrupt coz you didnt clear the calvik cache, wipe data when flashing the room etc...well my advise is to start everything from fresh..root your phone with CF-Root and boot in CWM mode..follow the basic step
start clearing cache, wipe data etc and install back the custom rom. or you may try back with official rom see if u face similiar issue...
another option is to upgrade / downgrade your baseband modem....i'm using XXKF2 which is the best in my setup in my country, signal more stable and good connectivity compare to KE7...some user in different country prefer KE7.......coz they got issue with KF2
Thanks Gchildz for your continued assistance.
Ref stable baseband modem what would you suggest in my case: I live in the UK but spend much of my working time in Europe, Middle East and former Soviet Republics? I appreciate that residing in one country would be much easier to determine the baseband but as a frequent traveller, is there a baseband that is all things to most of the places mentioned? To be fair, most of the accommodation is in the middle to upper end of the spectrum and therefore they WiFi I'd be using would usually be setup by an independant company with a reasonable budget, rather than a flee pit hotel with a cheap and nasty router.
Follow-up
Further to last, it would seem that I'm really not having much luck with this.....
I reinstalled CF-Root, then flashed to Villain 1.4 and still the Wi-Fi is not working. I even put on top the optional Modem file and again nothing but this darn "Error".
If I could, I would change the original thread title to "Error msg when trying to turn on WiFi" as it would appear to not be peculiar only to Litening now.
BTW Regarding the corrupted ROM I did clear the cache, factory reset etc 100% this time around. I thought I had last time but could be 100% posititve. I'm using Odin v.183, that shouldn't make a difference should it?

[Q] Help My SGS II has a weird Wi-Fi Problem

I have this problem over a month and I couldn't reach the solution yet I did everything I know but still
the problem kinda weird one , is that when I turn the WiFi on its works excellent for seconds then all of a sudden I can't browse anymore and only by turning off and on I can browse again for few seconds
I did a Factory reset but no benefit. And I tried to change the rom to Full 4 files (Pit,PDA,Phone,CSC) official rom and Still the same thing
I found the similar issue on the internet without any solution
What could it be?! I'm Afraid Its Hardware problem but why!
Any suggestion
Thanks in advance.
odsso said:
I have this problem over a month and I couldn't reach the solution yet I did everything I know but still
the problem kinda weird one , is that when I turn the WiFi on its works excellent for seconds then all of a sudden I can't browse anymore and only by turning off and on I can browse again for few seconds
I did a Factory reset but no benefit. And I tried to change the rom to Full 4 files (Pit,PDA,Phone,CSC) official rom and Still the same thing
I found the similar issue on the internet without any solution
What could it be?! I'm Afraid Its Hardware problem but why!
Any suggestion
Thanks in advance.
Click to expand...
Click to collapse
As wifi is more or less kernel related, you should post your kernel version.
Maybe flashing another ROM or kernel can help to solve this wifi issue.
Have a look at Intratech's Official Firmware thread here => http://forum.xda-developers.com/showthread.php?t=1075278
Download and flash the latest ROM for your country/region/carrier or just the latest Frankenstein ROM (XWLA4, I am using it right now).
Just wipe cache after flashing the ROM via recovery mode (shut down the phone, then press Volume UP + Home + Power button until recovery menu appears).
Good luck !

GS3 Freezes after disconnecting from WiFi

I recently flashed CWM onto my uncles GS3 and rooted his current rom. I made a backup and then tried out a new AOSP rom, which we decided not to keep because my uncle did not like it. But now, returning to the old rooted stock rom, every time the phone disconnects from wifi, it completely freezes up on the lock screen. Pressing the lock button does not shut off the screen and instead just locks it. You are unable to unlock it as the phone completely freezes up. The only way to get into the phone is to double tap home to get into the voice commands, and then go to home from there.
But even after that the phone continues to freeze. I tried another ROM on his phone today, but the problem still persisted a while later. It all happens when the phone is connected to wifi, and you walk out of range. After which the phone starts to freeze up.
I'm totally unsure whats going on. I just flashed the rom again, and we are trying a clean slate with no restoring of any data. It may have started to happen after we installed root browser (just as a guess), but we could be completely wrong.
If this continues again on this rom as well (which is Revolution HD) Im going to go back to completely stock (rom & recovery), and hope it still doesn't persist there. If not then I am out of options, and I have no clue what to do.
Any help would be GREATLY appreciated. We spent so many hours today trying to resolve this.
Thanks!
Usualy WiFi problems are kernel related. Have you tried Siyah or another custom kernel?
If this will not help than returning to stock with all wipes is the best idea, this should resolve your problem. If not, than you can try to reset router or set static IP for s3. Also try to remove WiFi setting for your home network in the phone and set it again manualy or via WPS mode.
i9.0.1.3k galaxy imperator
SirKunon said:
Usualy WiFi problems are kernel related. Have you tried Siyah or another custom kernel?
If this will not help than returning to stock with all wipes is the best idea, this should resolve your problem. If not, than you can try to reset router or set static IP for s3. Also try to remove WiFi setting for your home network in the phone and set it again manualy or via WPS mode.
i9.0.1.3k galaxy imperator
Click to expand...
Click to collapse
Thanks for the reply. This issue has been occurring between two different roms, so can the kernal still be an issue? Its happened with the absolute stock rom (w/ root) and Android HD Revolution.
My uncle said he would play around with the phone and let me know if it freezes again by tomorrow. If it does im going to wipe and stock.
Can anyone show me where to get the stock roms for the i9300?
I've downloaded and tried 3 different ones, but the phone never manages to boot up!
JitinDhillon said:
Can anyone show me where to get the stock roms for the i9300?
I've downloaded and tried 3 different ones, but the phone never manages to boot up!
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1671969
Sent from my GT-I9300 using xda app-developers app
JitinDhillon said:
Can anyone show me where to get the stock roms for the i9300?
I've downloaded and tried 3 different ones, but the phone never manages to boot up!
Click to expand...
Click to collapse
Same problem on Galaxy Note N7000, did your problem resolve by reverting back to stock because I've tried every possible option, to no avail?
juliobahar said:
Same problem on Galaxy Note N7000, did your problem resolve by reverting back to stock because I've tried every possible option, to no avail?
Click to expand...
Click to collapse
Go into recovery and wipe the cache, I believe that was my problem.

[Q] Samsung Galaxy SIII (GT-I9300) International Crashing And Rebooting

Hi, I'm having a curious problem with my S3 and I've been unable to solve it. I watched the "noob" video and tried searching these forums as well as a google search with various combinations of the wording for my problem. Nothing matching my issue turned up, I hope I didn't miss anything.
I recently bought a S3 second hand (yes, i know, i should have known better). It was rooted and running some kind of custom ROM when I first turned it on, but I was willing to deal with it until I double checked the procedure for getting it back to stock and starting again myself (nothing against the original rooting and flashing, just like to know exactly what I'm running).
When I purchased the phone I obviously checked that all of the main things worked - calling, texts, mobile data, wi-fi etc. I get home and connect to my home wi-fi and start checking things out and setting stuff up. The phone randomly rebooted. I carry on after the reboot and about 10 mins later, another restart.
To cut a long story short, there is something wrong with the wi-fi. If I turn off wi-fi in the settings menu and reboot, everything works great. No crashes, no reboots. If however I enable the wi-fi about 50% of the time it will crash while wi-fi is activating. The other 50% of the time, it will crash as it goes into the screen lock (either via timeout or pressing the button).
I've re-flashed to it's stock version of Android (using the 'Samsung GS3 Toolkit and Odin), same problem. Anyone got any ideas?
Thanks in advance
You can try updating the modem and RIL to the right version for your country, search in general forum. If it still reboots then try with another wifi source - I've seen some routers cause problems on client machines.
If you do a factory reset when you flash the modem, plus you have the latest stock ROM on board, then any remaining problems are probably hardware.
Test it fully after the factory reset, before you add any apps etc.
boomboomer said:
You can try updating the modem and RIL to the right version for your country, search in general forum. If it still reboots then try with another wifi source - I've seen some routers cause problems on client machines.
If you do a factory reset when you flash the modem, plus you have the latest stock ROM on board, then any remaining problems are probably hardware.
Test it fully after the factory reset, before you add any apps etc.
Click to expand...
Click to collapse
After much experimentation and flashing of various files to my phone I have further narrowed the problem. I've still not solved it, but getting closer I feel.
After a clean ROM flash it works like a charm regardless of how much i use the wifi etc. It's only after the first reboot that the trouble starts. It will begin randomly restarting. If I perform a factory reset from recovery mode, it works again, but starts resetting again after a reboot.
Any ideas?

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