No Wifi/BT, try everything without success but put in a freezer returns WiFi - Nexus 5 Q&A, Help & Troubleshooting

Hi all, two weeks ago bought a Nexus 5. Came with Android 5.0.1. Well out of the box I have no WiFi access. I saw no WiFi, while my laptop saw it. I was on a business trip in a hotel in Miami. Suddenly walking through the corridors of the hotel, detect a few WiFi AP but I could not connect. Back home, I put 3G data and immediately I get the OTA to Android 5.1.0. From there, the WiFi worked and I could connect to my account and download applications. Moments later, came a new OTA to Android 5.1.1 moment in which everything stopped working.
Using Nexus Root Toolkit I have tried all official image, place the router on 2.4, low channels, clean cache and what all Forum recommends. Finally try to put the phone in the freezer. Leave it for ten minutes. When I power on, I went back to see all networks and connect to my WiFi for 15 minutes approximately. Once the phone returned to temperature environment, the WiFi disappeared and I went back to the same situation. If I put it in the frezer it works, until it takes ambient temperature.
I can turn on or off the WiFi, but I do not see anything, I can see the MAC Address, when turn on the wifi the button turns blue, everything its works fine but without any success. Currently the phone has Android 5.1 image LMY47I and the M8974A-2.0.50.1.16 RADIO (did a downgrade thinking that could improve something). Currently I have OTA to migrate to 5.1.1. I dont know if I will give a try to this upgrade.
I would like to know if there is any way that the phone does not validate the temperature or something similar because when he leaves the refrigerator "cold", everything works for a few minutes until it returns to a temperature environment.
Any thoughts?

Freezer.. Interesting

Yeah can't say I've heard that one before ...
Sent from my Nexus 5 using Tapatalk

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wifi problems

hello guys,
i may have a problem with my wifi connection.
i bought two days ago the phone and yesterday i was playing with it in my house. i have some kind of problem when i am connected to my rooter.
when i connected my phone, i started viewing some sites and watching youtube videos.
suddenly i had this problem:
at the browser when i clicked a site, it started load it but never ended, just showing a white page. if i pressed stop and reload then the site was loaded ok.
this happened all the time.
when i returned to youtube the videos started and played for 10-20 seconds and then were freezed because the phone could not get the rest video.
at the same time i had internet access from my rooter as i could navigate at sites from my tablet.
if i close and open my wifi on phone then the connection was ok but after a while (10 mins) this strange behavior started again .
has anyone ever had the same problem;
thanks you
(PS sorry for my english)
What ROM are you using, and did you try to reset the phone and wipe cache/dalvik?
Sent from my HTC One XL using xda app-developers app
the phone is new (2 days old) and its stock
Have you tried simply power-cycling the router? Should be one of the first things you do, anytime you have a WiFi problem, as this will clear it up many times. I think I've seen this help even in cases where other devices work on the WiFi network properly.
yeap, i restarted both router and the phone
i have changed all the settings on the wifi-settings but did not see any progress.
From htc support told me to worj the phone in safe mode, but i have to wait until i return home
besides this problem, i cant connect and the router at my office (i had the same problem with mt s2 after an update, but 1-2 months later sammy rolloed out an update and the problem fixed)
Is security enabled on your WiFi network, and if so, what type (WEP, WPA, WPA2, etc.). You might try switching the encryption type (although WEP is not recommended, as its not very secure). I've seen cases where this has helped various connection problems.
I have had this problem with a lot of phones that friends and family bring by. 90% of the time the problem is a minor setting on the router. Some Android phones don't like AES encryption. If your encryption settings on your router are set to "AES" or "TKIP and AES" try changing it to just TKIP. You should see improvement with your connection.
You may have to change the security settings on other devices that are connected to that router as well to refelect the change.
hey guys,
yesterday evening, when i returned home i checked my router if it was able to change the frequency from 2.4GHz to 5GHz but i could not as at the channel it did not had choises for 5GHz.
i did not change the encryption type.
i restarted the phone, and entered in safe mode. after 10 mins the problem occurred again, i removed chrome, and suddenly the phone started working fine for until 1 hour and so i figured out that the problem was the app chrome, but i left the phone in safe mode and went to bed.
next morning (today) i started watch sites and after 5 minutes the problem occurred again. (i did not turn off the phone from the previous night, still worked in safe mode)
is there any possibility the problem to caused when the phone is in standby? although i have the wifi activation in option always

[HELP] 5.1 Suddenly WiFi, ADB, roaming don't work...

So I've been in a happy relationship with my rooted, stock rom/recovery Nexus 5 for a while now. I updated to 5.1 the other day through ADB without issue and everything has been working fine until I took a plane to France (I'm originally from Spain) a couple days ago for the weekend.
First thing I noticed is that roaming didn't work. No matter what I switch on the phone I get network but no data coverage. I checked with my carrier and everything is right on their end. I switched SIMs just in case and it's a phone issue.
The next thing, WiFi doesn't work. When I go to WiFi through quick settings it's always toggled on, searching, but never getting any results. However the icon appears as WiFi off. When I go to WiFi through general settings, no matter what I click, it appears as off and with no results.
I thought about reflashing radio, but when I got to my hotel room I discovered that ADB wasn't working. ./adb devices throws no result. Plus, Android File Transfer (I'm on a Mac) doesn't work either. USB charging works just fine.
Next option would be to restore the phone to factory settings and go from there, but I would rather not use that option before discarding all the others. I have my TB backups in order, and the most I would loose would be a couple pictures.
Any crazy ideas I can try? I'm flying back to Spain in two hours so when I land I will discover if I have data on my home network or if I don't. In the meanwhile, I'm going to be on a plane with my laptop, a USB cable, my phone and a lot of time to try things.
Thanks!

[Q] Constantly loosing connection

Almost since I got my nexus 5 last year it has been loosing its connection about two times per day. It does this in three different ways.
1. total loss. The little outline of a triangle appears and a notification that I have lost my connection. Clicking the notification opens the manual selection of networks. I select the network and all is fine.
2. full connection with an exclamation mark. solves it self by waiting for a while.
3. full connection with H/3G but when trying to access the internet there is no connection. This one is really weird. The solution here is top open the quick settings, select flight mode, which greys out the connectivity triangle but keeps the H or 3G part white on top of the greyed out triangle that has a slash over it. About a minute later the H or 3G disappears and I can turn off aeroplane mode. This either restores the connection or jumps to problem one.
First I thought its a hardware problem, but since I don't want to part with my phone I never sent it back to google for fixing.
When android 5.1 was released I installed that manually and surprisingly did not have any problems at all after this. But then I went abroad and using the same sim connected to a local network in the country I went to. It took 4 tries to join one of those networks. When I then came home this problem started again.
My thought is that there is some setting that should be there that stayed from my trip. I have tried clearing all caches from the storage in settings and the dalvik cache. No difference. I'm not to keen on re-installing my phone again. So my question is, has this happened to anyone else? Did you solve it? Is there something I can do to remove all previous settings for the network to make it work again? Other suggestions?
This happens to me, at least 4 times a day for me, it has only been doing it since I installed 5.1 on my nexus 5, which was a brand new one from Google since I smashed my screen and they just gave me a new one, I'm in the UK btw, not sure where you are but it does take forever to connect to mobile network when I turn wifi off too.
I constantly lose connection at my house going from E to H+ to LTE throughout the day
Sent from my Nexus 5 using XDA Free mobile app
kieran_bondflashy said:
This happens to me, at least 4 times a day for me, it has only been doing it since I installed 5.1 on my nexus 5, which was a brand new one from Google since I smashed my screen and they just gave me a new one, I'm in the UK btw, not sure where you are but it does take forever to connect to mobile network when I turn wifi off too.
Click to expand...
Click to collapse
I'm in Spain.
For me it happened before 5.1 as well. But 5.1 fixed it temporarily, until I travelled with my phone. Have you had to switch to another network with that phone?
For some reason when manually looking for a network it seems to be running on a timeout function because it takes me 60 seconds to get the list, always. This feels like a very antique solution, they should just populate the list as a network is found like wifi does it.

WiFi Connection Failure

Hi.
I only have one wifi network around atm. My N5 was working fine with it, and yesterday it started disconnecting from it.
Right now, when I try to connect, it connects for 3 or 4 seconds (it gets an IP address and actually connects to the Internet) before jumping back to data connection. When entering the Wireless menu on my phone it says "WiFi Connection Failure".
I thought I might have tweaked something I shouldn't (since also yesterday I installed Franco kernel and App Ops), so I went back to stock (using the Nexus Toolkit) and in the process I updated to the newest 5.1 release (I had LMY47D version and upgraded to LMY47I).
It didn't help. I also tried changing the router channel and security type to no avail.
Of course, I also tried to turn airplane mode on/off and forgetting network. And I just downgraded to LMY47D to see if that was the problem. But it didn't fix it.
I'm attaching the logcat. I hope I did it properly.
Any suggestions? Thanks!
UPDATE: I noticed it works in Safe Mode. I'll try to find which app is causing it.
I'm having exactly the same problem.
Updated to 5.1, after a run with Nike+ and Runkeeper, with GPS and Cellular Data on, battery drained and phone switched off. After a recharge, this problem emerged, different ROMs, different stock versions, different kernels. Nothing seems to make wi-fi work again.

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!

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