Bug: When 3G is enabled, Wi-Fi fails - Galaxy S II Q&A, Help & Troubleshooting

I have noticed that all of a sudden in the past few hours my device has started to get very hot and when 3G is enabled the device suggests that all Wi-Fi connections are not in range, but when I dsable the mobile data, Wi-Fi connects fine, I was running the official LPM rom, and I decided to update to the latest release to see if there was a problem with the modem files, but the problem is still there on the latest rom.
Is this a known problem with the S2, or have I just got a faulty device?.

*UPDATE*
For anyone who may come across this problem, I have managed to fix it by doing a factory data reset.
If you want to try this yourself, then goto: Settings > Back up and reset > Factory data reset, then click reset device, (I didn't need to format if you are wondering)

Related

After offical Kies 2.3.5 update, my Wifi Hotspot settings no longer save

Hello all,
I'm on three uk and updated to 2.3.5 via Kies yesterday. All fine, a definite improvement to 2.3.4.
But there is a problem, when i go to portable hotspot settings the Network SSID has been reset as 'AndroidAP' and the password is something random.
I can change it, but it doesn't stick. Sometimes it will persist for that 'session' but after i close and exit the hotspot configuration it will get reset back to AndroidAP.
I've noticed a few other people have this problem, it seems to be caused by the permissions getting messed up on the /data/misc/wifi/softap.conf file (as seen http://forum.xda-developers.com/showthread.php?t=1301996).
what i want to know, is there *any* way i can reset the permissions on this file or fix this problem without performing a factory reset or by rooting my phone? the feature still works, but it's really, really, annoying as i use it quite a lot.
is there any way i access this file via the sdk or in debug mode without rooting my phone?
please help!

[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?

[Help] No Wi-Fi Signal

Hi,
I have an official firmware 4.3 Galaxy S3 UK Variant with no modifications. For about the past week the phone has decided to drop the connection to my Wi-Fi network if I got more than 3 steps away from the router. My router doesn't seem to be the problem since I have no such problems with any other devices like my laptop and the Galaxy Tab. Seems a strange problem since I have no idea why it has surfaced.
Any help will be helpful.
Reset router, factory reset phone, reflash latest firmware in that order.
After that it's hardware.
boomboomer said:
Reset router, factory reset phone, reflash latest firmware in that order.
After that it's hardware.
Click to expand...
Click to collapse
Thanks for the reply. Done a factory reset which may or may not have fixed the problem, will have to run with it for a while to see the effect. Did have a look around this forum and others for a solution but couldn't find anything apart from disabling wi-fi power save.

How to deal with WiFi not finding any networks?

Previously I had a problem with my Moto Z randomly rebooting and some functions like battery stats or WiFi not working. After some time almost all these issues disappeared(I don't know why), except WiFi which still doesn't find any networks. I tried booting into safe mode, wiping cache partition and factory reset, but nothing helped. I'm running android 7.0. Is there any way to install previous software version/completely reinstall current one without voiding the warranty? I think this might help in this case - otherwise it must be hardware issue and I have to send my phone to repair anyway.

Question Pixel 6 wifi bug

I got pixel 6 2 months ago .. when I unboxed I couldn't connect to wifi cause it couldn't find any wifi network ... After February update the problem still remains even after March update... I can connect by putting my device in airplanemode then reboot the device and my device can connect to any wifi without any problem and I can switch airplamode off and still connected ... Who has this bug too van we find a fix for it .. and thanx..
I just got my Pixel 6 about a week ago and don't have this issue. The phone came with the Jan update and I updated to the March update (skipped Feb update because of its issues). Since this is likely a software issue, I'm thinking a factory reset (without restoring from backup) may help you?
K3n0.87 said:
I couldn't connect to wifi cause it couldn't find any wifi network
Click to expand...
Click to collapse
Before the big hassle of resetting the phone, maybe try a smaller hassle first. When a network device has trouble looking up names it could be time to flush the router's DNS cache. For home routers this usually means a factory reset if the firmware doesn't have the option.
have you tried a network reset back to default values?
i cant remember where i saw it, but its a feature
Ive tried every method from network reset to factory reset to full flash firmware .... Nothing happened ... Same problem still there
Is this only happening with one access point? If yes, maybe the AP has a configuration which is not suitable for ur phone.
I personally never experienced any WiFi issues since I have the mobile.
Cheers
Tom
I was going to say much the same - find a friend/family AP to test with to compare.
I tried another 5 ap...still problem

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