WiFi will no longer turn on - Samsung Galaxy S7 Questions and Answers

This problem has been going on for over a month, happened while I was on mashmallow, I have upgraded to nougat to hopefully fix the issue, it still happens. When I go into WiFi settings and flip the switch is says "turning on" and will do so endlessly. It will never show me any networks or even say no networks available, just "turning on".
Things I've tried:
Booting into safe mode
uninstalling all apps (works temporarily even if i turn autoupdates off)
clearing cache
resetting network settings
factory reset (through bootloader, temporarily works)
flash to stock
I have seen other people with the same problem but no solutions. Can anyone provide some insight? Being that it works after doing resets and stuff i imagine its not hardware related. If it was, am I able to replace the wifi module in this phone?

I have just flashed back to Samsung_G930x_QC_Rooted_BOOT.TAR engineer image via odin, and it is working again. But I am skeptical that it will continue working, I will update here.
I have preemptively turned off auto system update in settings and auto app update in the play store, are there others that im missing? Could really use some help and/or advice here.
edit: It is also stuck saying "software update available", which ive tried in the past and it always fails, can i get rid of that somehow? I'm willing to root if necessary

just flashed QC1 using this thread < https://forum.xda-developers .com/verizon-galaxy-s7/development/rom-t3576124 >. Will report back.

Related

Wifi enabling impossible after Android L installation

Hi guys...
after installing the android L developer preview on my Nexus 5 i can't activate the wifi anymore...
back to stock...... unlock.... wipe dalvik and cache..... no luck....
the wifi don't work anymore.... stuck on wifi activation..........
Please help me.... i don't know what to try.....
thank you
I have the exact same problem. VERY frustrating. No idea what happened.
[Q] Stuck on WiFi Turning on
Hello,
I've seen this issue with various phones and various fixes... But I don't want to Hi-Jack anyone or anything. Anyway, I tried the dev build of "L" at one point... and my WiFi randomly stopped working. I thought "welp, it's a dev build... not gonna sweat it" and went back to stock 4.4.4... flashed back to factory, no dice. It seemed to turn on long enough during the setup process to "connect" but it disappeared when I rebooted to go to ART. Thought, welp, no experimental anything. Flashed back to factory, no WiFi. Not even during setup. Tried the various things I've seen around... obviously various factory resets, tried rooting and renaming wpa_supplicant.conf, flashed paranoid android because someone said that's the only thing that worked... it didn't. I do notice the kernel seems to be the same for PA and 4.4.4, so I could try another kernel, but have no idea which to try. After I put TWRP on, I cleared every cache, etc I could. Flashed back to stock after clearing system and no dice, tried running wifi fixer, tried installing macman... nothing. I did see someone say if the phone gets too hot, the WiFi chipset can come off, but the WiFi chip-set is the same as Bluetooth, and that's having no problems. I appreciate any suggestions, I really want this to work out. Otherwise I have a year with a phone with no WiFi... To kind of clarify (re-reading, I see I wasn't too clear about the actual problem), the WiFi toggle switch is set to "Off" and where your networks would display it shows "Turning on WiFi". This isn't just one network acting up, and this has been going on for a couple of weeks.
Edited to add: when I unlocked the bootloader today, the setup process showed me my networks but settings froze when I put the password in... so the hardware seems to be connected...
Please continue any discussions in the existing thread HERE
Thread Closed.

Nexus 5 WiFi Crashing Phone

Hi all. I have a weird issue that after Googling it doesn't seem anyone else has had.
The issue started earlier today, in the morning. I was using my phone on the WiFi and it was working phone, then my phone crashed, restarted itself.
I noticed it wasn't connected to the WiFi, went to the WiFi settings and where it usually says the list of networks it said "Turning on WiFi" and the slider at the top was greyed out so I couldn't turn it off.
I tried airplane mode and that didn't help. But the phone was working fine on my mobile data so restarted.
Now the weirder part starts. I basically have an issue where, if I turn on the WiFi, my phone crashes, or doesn't act like it's turning the WiFi on.
Even going Settings and then pressing on the WiFi option freezes the phone.
The problem started when I was still using 4.4.4 however since the problem developed I've used my mobile data to download the updates and now have 5.1.1 I think.
The problem persists even after updating to the most recent version and doing a factory restore. The phone is currently completely stock with nothing downloaded on to it. All I did is go through the first time setup for the device.
The WiFi currently is off, and the phone is working however it won't connect to my data, it has the signal bars and then an ! instead of a 4G icon.
If I try to turn the WiFi on it crashes the phone.
The phone is still under warranty so I plan on contacting LG on Monday however it's currently 3:34 AM on a Sunday so I have a day until I can call them and was hoping for a solution in that time.
Thanks in advance. I have the phone to hand so anything you want me to test I'm able to.
There is some information I didn't type as I don't know what is important was trying to avoid a wall of text so if you have any more questions I'll answer I best I can.
Thanks for reading, I hope you can help!

[Q] wifi switches on and off

Hi,
since yesterday I have problem with wifi in my S7 (SM-G930F). It keeps turning on and off every second or two. I cannot switch it off because it keeps switching. I have rebooted my device, but it didn't help me. My phone is not rooted, it has stock 6.0.1 firmware. How to fix it? Despite it's impossible to use wifi now, it keeps draining my battery.
edit:
logs attached here: logs
duchian said:
Hi,
since yesterday I have problem with wifi in my S7 (SM-G930F). It keeps turning on and off every second or two. I cannot switch it off because it keeps switching. I have rebooted my device, but it didn't help me. My phone is not rooted, it has stock 6.0.1 firmware. How to fix it? Despite it's impossible to use wifi now, it keeps draining my battery.
edit:
logs attached here: logs
Click to expand...
Click to collapse
Boot to recovery and clear caches, reboot and see how it is then
done. Sadly, it didn't help me.
edit: I've just used this app but it also failed. If nothing help me I will wait till Monday to show it to my coleagues from Customer Support. Maybe they will find solution
duchian said:
done. Sadly, it didn't help me.
edit: I've just used this app but it also failed. If nothing help me I will wait till Monday to show it to my coleagues from Customer Support. Maybe they will find solution
Click to expand...
Click to collapse
I'd backup with smart switch, and factory reset the phone
Or flash the latest stock ROM over the top with ODIN
*Detection* said:
I'd backup with smart switch, and factory reset the phone
Or flash the latest stock ROM over the top with ODIN
Click to expand...
Click to collapse
I think it may be related with some strange wifi:
11-11 11:20:11.682 3462 3896 I WifiConfigStore: " Social WiFi" is a captive portal!
11-11 11:20:11.682 3462 3896 I WifiConfigStore: not authenticated yet
11-11 11:20:11.682 3462 3896 I WifiConfigStore: login url: "https://accounts.google.com/ServiceLogin?passive=1209600&continue=https://accounts.google.com/o/oauth2/auth?scope%3Dopenid%2Bemail%2Bprofile%26response_type%3Dcode%26state%3Dp6Vwdj6Gibz9wS9yez6dSfomZT3WiPZC%26redirect_uri%3Dhttps://socialwifi.com/social-auth/complete/google-oauth2/%26client_id%3D240279395513.apps.googleusercontent.com%26from_login%3D1%26as%3D-1601b637b91f0d80&oauth=1&sarp=1&scc=1#identifier"
Click to expand...
Click to collapse
I saw it yesterday at work, but not authenticated. Now it is remembered in list. Sadly S7 has no option to forget networks out of range. Todays we have national holidays, but on Monday I will be at work and try to forget this network. I do not want to change rom because rom from my operator has wifi calling enabled and it is awesome.
Is there any chance that WiFi scanning is turned on? I recently saw that WiFi scanning will briefly turn my WiFi on then off repeatedly (shows with an indicator on top and I hadn't noticed that before). This first showed up when I installed Android Auto since it turned on my WiFi scanning option by default. As soon as I turned WiFi scanning off, the WiFi worked as it had before. It may be worth a look.
I've run into the same issue. Started yesterday, which may have come with the latest PJG update... Not sure.
But it's rendered my phone pretty much useless. The constant toast message popping up, saying "Network connectivity is available" gets in the way of the keyboard and I can't type a damn thing!
Like you, I've found it's stuck with reboots and a factory reset, which makes me think it could be the firmware or modem.
Edit: Disabling WiFi Scanning stopped the errors. Root cause is still unknown, though. I've never had to disable that before...
crizyal said:
Is there any chance that WiFi scanning is turned on? I recently saw that WiFi scanning will briefly turn my WiFi on then off repeatedly (shows with an indicator on top and I hadn't noticed that before). This first showed up when I installed Android Auto since it turned on my WiFi scanning option by default. As soon as I turned WiFi scanning off, the WiFi worked as it had before. It may be worth a look.
Click to expand...
Click to collapse
Yep. It was turned on, but I have it enabled since I bought this phone. Turning off neutralized my problem, but why it was broken for last few days when I haven't done anything with my phone? I rely on this feature because of localization accuracy and disabling it is just temporary fix.
edit:
Guys, one more thing:
do you have "Samsung Gear" app installed? I think this app is forcing to enable and disable wifi. Under localization it shows battery usage as high and it was updated last week
duchian said:
Guys, one more thing:
do you have "Samsung Gear" app installed? I think this app is forcing to enable and disable wifi. Under localization it shows battery usage as high and it was updated last week
Click to expand...
Click to collapse
My phone does not have the Samsung Gear app installed. I do use Samsung Pay regularly and that was also updated (engine and app). I don't know how that would relate to WiFi though.
jimmy-bish said:
I've run into the same issue. Started yesterday, which may have come with the latest PJG update... Not sure.
But it's rendered my phone pretty much useless. The constant toast message popping up, saying "Network connectivity is available" gets in the way of the keyboard and I can't type a damn thing!
Like you, I've found it's stuck with reboots and a factory reset, which makes me think it could be the firmware or modem.
Edit: Disabling WiFi Scanning stopped the errors. Root cause is still unknown, though. I've never had to disable that before...
Click to expand...
Click to collapse
Turning off WiFi scanning stops the constant switching of WiFi. I tried removing the system settings permission from all the apps that had it (even the Google app) but it doesn't seem to have any effect.
I am seeing the same issue, I did not touch my screen in the following video
Video on Dropbox
disabling "Wi-Fi scanning" in location helps.
Hi,
I had the same issue before.
What I did was(Not sure how its displayed in english):
-Settings;
-Backup and Reset
-Reset network settings
I was having constant disconnections from wifi and it solved it.
Give it a try
DiogoCDS said:
Hi,
I had the same issue before.
What I did was(Not sure how its displayed in english):
-Settings;
-Backup and Reset
-Reset network settings
I was having constant disconnections from wifi and it solved it.
Give it a try
Click to expand...
Click to collapse
Did the above solve the problem?
I am using G930F in US on ATT and encountered the same problem in past few days, where wifi kept turning on and off. Was searching this post, and found out that if i turn off wifi scanning i can get wifi to stay off (when i switched off ) and wifi on (when switched to on) and not flip back and forth.
go to settings.
- click on search
- type in improve accuracy
- select from choice
- turn off wifi scanning
Try that and hope that helps.
I have the same problem. The side effect is that it will drain the battery really fast.
As others have mentioned, after I have turned off the WiFi scanning in the location setting the problem is temporarily gone. However it should not be the solution as I really need the WiFi location to work. I don't know what is causing the bug.
P. S. I only see this problem starting from the last week or so. I leave the WiFi scanning location function on since I have bought the phone in May. Mine is Exynos version.
several Samsung devices have this issue.
I and several others have it on a note 4, and some people have also reported having this problem on S6 variants.
The problem is Google Play Services 10.0.84 version. Another cell phones with this version of Google Play Services have the same problem (ej. Google Pixel phone) but not all.
The problem is the Android Wear App. Deinstall the app and wifi works perfekt.
This issue starts with the last update of the wear app.
Hope i could help you.
Gerry65 said:
The problem is the Android Wear App. Deinstall the app and wifi works perfekt.
This issue starts with the last update of the wear app.
Hope i could help you.
Click to expand...
Click to collapse
I tried uninstalling Android Wear but it didn't make a difference. The wifi kept switching on and off.
As mentioned above, it's Google Play Services 10.0.84. Just disable wifi scanning until there is an update. Hopefully google won't take too long to push a fix.

WiFi appears to be stuck... Causing all manner of weird behavior.

So, I bought a cheap "4k action camera" to play around with. It has wifi, and I was working on getting it connected to my phone .
While doing so, the wifi on my phone sort of.. hung. I couldnt switch to my usual wifi network, it was just sit and spin, eventually wifi stopped showing my networks altogether. If i open ip the wifi settings, the indicator just spins, i cant turn off wifi, and no networks are listed. After doing so, I cant even shut down my phone without holding the power button for 10 seconds.
I'm just trying to get this cleared up, anyone have any suggestions? I have my phone connected via ADB, but it's stock, no mods, no root. I've considered a factory reset, but I'd like to avoid that if I can.
Thanks!
Well. After a few hours of fighting with this, I ended up unlocking (which of course wiped my phone). This way I'm free to root or flash in the future without that being a barrier again. The wipe, of course, resolved my problem.
I'm trying to decide if I want to jump straight to a custom ROM now or not, before I get too deep into getting my phone set back up. Any suggestions?
Thanks for reading!

WIFI AND BLUETOOTH stop working after flashed a firmware samsung s8+. Need help.

Hello,
My phone Samsung S8+ SM-G955F. Wifi and Bluetooth are just stop working after I flashed the firmware G955FXXU3CRGH. In the beginning the bluetooth just stopped working for no reason. For example: When I try to turn it on, the colour is the same instead of turning into ''blue'' colour which is weird. I have tried reset network settings, factory reset, go to safe mode, ... more. But it is the same. (What can be wrong? Component inside of the android? )
And now the wifi function stops to work as well. Everytime I try to turn wifi on in setting menu, the whole mobile resets itself. Have also tried to reset settings, factory, flash another verisions of firmware but no result.
Does anyone know how to fix it? What can be wrong?
Please help me. I preciate every single comment

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