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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.

[Q] WIFI needs two full ON/OFF-Cycles to function properly

Hello,
For the past two weeks my phones WIFI (LG-P880 with CM11-nightly) needs two full ON/OFF-Cycles to function properly.
For example:
1. I turn WIFI off in the morning when I leave for work.
2. Then I turn it back on at night, when I get back home.
3. It "seems" to scan for available networks, but it doesn't seem to find any.
4. THEN I turn it off again and on again and suddendly it shows all available networks and reconnects to my preferred one as it should.
I already did a full factory reset via CWM, including wiping cache and so on; didn't fix the problem.
Any suggestions?
Thanks in advance.

kerp said:
Hello,
For the past two weeks my phones WIFI (LG-P880 with CM11-nightly) needs two full ON/OFF-Cycles to function properly.
For example:
1. I turn WIFI off in the morning when I leave for work.
2. Then I turn it back on at night, when I get back home.
3. It "seems" to scan for available networks, but it doesn't seem to find any.
4. THEN I turn it off again and on again and suddendly it shows all available networks and reconnects to my preferred one as it should.
I already did a full factory reset via CWM, including wiping cache and so on; didn't fix the problem.
Any suggestions?
Thanks in advance.
Click to expand...
Click to collapse
if it is a problem with the rom, which is very likely, the only option is to try another rom or put stock back on.

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!

WiFi will no longer turn on

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.

Samsung S6 WiFI Stuck at "Turning On"

I am trying to connect my phone to wifi and its stuck at turning on. My Bluetooth and GPS are working fine. I am also able to see MAC address for my wifi and Bluetooth. But my wifi is not working. I have tired Flashing stock ROM, custom ROM, Performing hard reset etc. None of them worked. I am wondering there might be some data corruption or some file missing that is causing this problem. Similar to this "https://www.youtube.com/watch?v=RHGQn0Av2hI" where his moto g is having the same problem.
My S6 is currently running Android 7.0 Stock ROM
See the Attached screenshots
Please Help..... Its WIFI

Hello - currently having this issue on my S6 right now.
Updated from 6.0.1 to Stock 7 using Odin and Samfirm
Then a combination of custom roms and stock flash, also didn't work.
Upon trying to access FSM (service mode) I don't see any of the wifi power save options that most people report that fix it.
Any idea? There are a few of us in the internet with this but never a solution

There's a good chance that this information is useless, but I got this on another Samsung device, after writing 0 to /sys/class/rfkill/rfkill1/state.
WiFi stuck on turning on;
WiFi and BT MAC addresses are OK;
GPS and BT are OK (tested);
WiFi Direct is clickable after using the back button but does nothing;
After a few attempts it gives up.
After writing 1 the WiFi started working again(tested). But it didn't stop working by itself, it stopped working because I wrote 0.
Logcat's attached.