Unable to scan for networks (wifi problem) - HTC EVO 3D

Every time I turn wi-fi on, it simply says "Unable to scan for networks". Does anyone know how to fix this. I hard reset and that didnt help.

Try a full power outage. Pull the battery. Sometimes you need to clear voltage from hardware (especially radios) in order to clear the glitch.
If you find it necessary to do this a lot, there is a deeper problem.
If this fails, take it into the store.

I took it to the store and they said its a known bug.
They said they are fixing it in an update soon.
I don't know if its true...
Sent from my Evo 3D using the XDA App

I had the same problem, it started when my phone dropped below the threshold for the power saving mode, I believe I went into those settings and disabled some things and got it working after a reboot (turn fast boot off)

spookytay said:
I had the same problem, it started when my phone dropped below the threshold for the power saving mode, I believe I went into those settings and disabled some things and got it working after a reboot (turn fast boot off)
Click to expand...
Click to collapse
I tried all that and its still doing it...
I'm just going to wait until the bootloader is unlocked and then flash Cyanogen mod 7 when he makes it for the Evo 3D

I'm having a similar issue, my wifi goes into sleep mode and says "unable to connect to wi-fi" when i wake the phone up, but then immediately connects back to wifi. I tried changing the wi-fi sleep setting in spare parts, but nothing fixed it.

nhutpham said:
I'm having a similar issue, my wifi goes into sleep mode and says "unable to connect to wi-fi" when i wake the phone up, but then immediately connects back to wifi. I tried changing the wi-fi sleep setting in spare parts, but nothing fixed it.
Click to expand...
Click to collapse
Yup, this is the exact same problem I have been having!

Did.you try a data wipe???
Locked & Loaded

nhutpham said:
I'm having a similar issue, my wifi goes into sleep mode and says "unable to connect to wi-fi" when i wake the phone up, but then immediately connects back to wifi. I tried changing the wi-fi sleep setting in spare parts, but nothing fixed it.
Click to expand...
Click to collapse
Do you have wifi set to "never sleep" in wifi settings??? Also if your running spare parts+ it also has an option to set wifi to never sleep. Also are you running any apps that puts the phone to sleep??? Also in display settings try changing your screen off time to 10 min.
Locked & Loaded

I tried the "never sleep" setting in spare parts, but the setting doesn't hold when I exit the program and open it again, it goes back to "android default". I don't see anywhere in the phone wi-fi settings to change the sleep options.
I'm unaware of any apps I'm running that put the phone to sleep, and I'm not sure what the display settings accomplish but I can try it.
None of this happened before, only thing that really has changed for me is that I got the iGrip car dock and the phone has seen dock mode a little bit. That and I went to a house with spotty wi-fi and my phone would connect and disconnect at the range of the router. I've had other issues with app/camera freezing, I'm hoping it's sd card related or perhaps due to ota's not taking correctly. I'm gonna try a sd card format/phone data reset to see if that remedies all the issues, otherwise I might go in for an exchange.

speedy0339 said:
I tried all that and its still doing it...
I'm just going to wait until the bootloader is unlocked and then flash Cyanogen mod 7 when he makes it for the Evo 3D
Click to expand...
Click to collapse
BS. You shouldn't have to wait for a custom rom for your phone to be running normal. Take that **** back again.
Sent from my 3rd Dimension of Evolution

This happens to me. I have noticed it only happens if I have had my phone get below 30% battery at some point and the power save mode kicks in. For some reason it is not switching it back once power save mode is disabled.
Sent from my iPhone with the bigger GeeBees.

The setting isn't located under Wi-fi, look under Power, you should see the options in there. Turn power saver off, or adjust it's settings, and see if that helps, I wouldn't use spare parts

I did a full phone/sd card reset, and the problem STILL exists for me. Spare parts did restore itself as one of the applications that got restored, I uninstalled it without running it though. My phone settings seem to have gotten reset as well. I don't get it, my phone was fine even with spare parts installed before.
I might try another reset and see if spare parts still restores itself.

nhutpham said:
I did a full phone/sd card reset, and the problem STILL exists for me. Spare parts did restore itself as one of the applications that got restored, I uninstalled it without running it though. My phone settings seem to have gotten reset as well. I don't get it, my phone was fine even with spare parts installed before.
I might try another reset and see if spare parts still restores itself.
Click to expand...
Click to collapse
Are you.running spare parts plus??? Also the settings for the wifi never sleep is located in settings/wireless networks/wifi settings. Then hit menu and select advanced then choose wifi sleep policy. Also make sure best performance is selected.
Locked & Loaded

Ah, I didn't see that menu, thanks!

Related

Wifi error after OTA update

Rooted the phone then applied the OTA update and since then i keep getting a wifi error. Im currently out of the country so can't connect to sprint. Any ideas?
Anyone?
Sent from my GT-P7510 using Tapatalk
Yup, had this problem after applying this OTA.
When I click the checkbox to enable wifi, it just shows "error" and does not enable wifi.
A factory reset fixed it for me.
My wifi turns on and connect but won't give me any data
Sent from my MB855 using Tapatalk
The Atrix has a driver related issue that causes problems connecting to WiFi access points in certain countries. I'm pretty sure they have figured out a workaround over in the Atrix XDA section, sorry I don't have a link for you.
Hi,
My name is Fisher, I have the same problem, I have the phone in Australia and I updated over wifi then my wifi just says error underneath it, also 4G does not work. I can turn wifi on by first putting the phone into aeroplane mode then restarting and turning wifi on while still in aeroplane mode. I have managed to get all working occasionally by having aeroplane mode and wifi on, then going to system updates which are greyed out then turning off aeroplane mode by holding down the power button and when ive done that i have a second or so before the wifi dies to click motorola software update that is now not greyed and it sometimes kicks everything on;-)
I have tried factory resetting the phone 3 times and formatting internal sd on third time, did nothing.
Now i have some dmesg logs with the wifi under error, working in aeroplane mode and all working with my trick, so let me knowif u want them all.
I have a feeling the issue could be a sprint app or process that disables it, look at the access/security settings for sprint zone, it can control wifi, everything seems to be briefley activated when i start the phone in the notification bar then wifi and 4g die, so maybe a sprint process detects that the phone has not activated or something and kills wifi and 4g.
I have reported this on the motorola forum in the thread someone else started, look for " motorola photon wifi error" in google and it might be the first hit.
Fisher
fisher.grubb said:
Hi,
My name is Fisher, I have the same problem, I have the phone in Australia and I updated over wifi then my wifi just says error underneath it, also 4G does not work. I can turn wifi on by first putting the phone into aeroplane mode then restarting and turning wifi on while still in aeroplane mode. I have managed to get all working occasionally by having aeroplane mode and wifi on, then going to system updates which are greyed out then turning off aeroplane mode by holding down the power button and when ive done that i have a second or so before the wifi dies to click motorola software update that is now not greyed and it sometimes kicks everything on;-)
I have tried factory resetting the phone 3 times and formatting internal sd on third time, did nothing.
Now i have some dmesg logs with the wifi under error, working in aeroplane mode and all working with my trick, so let me knowif u want them all.
I have a feeling the issue could be a sprint app or process that disables it, look at the access/security settings for sprint zone, it can control wifi, everything seems to be briefley activated when i start the phone in the notification bar then wifi and 4g die, so maybe a sprint process detects that the phone has not activated or something and kills wifi and 4g.
I have reported this on the motorola forum in the thread someone else started, look for " motorola photon wifi error" in google and it might be the first hit.
Fisher
Click to expand...
Click to collapse
Sounds good. Ill give that a shot. Lemme know if you find out more
Mine is working fine, though today I turn WIFI off and my battery had a run away effect. The battery drained 30% in 10 min and the phone was at 116 degrees. It also rebooted itself twice but now it is fine and I turned wifi on and off a few times and no ill effect.
and yep I have the update.
Wifi ERROR after OTA update
hello everyone
i am not a US resident and i bought this amazing phone i am using Cellcom Israel Sim card
i just saw the firmware update,the update run smooth but after the reboot i try'd to turn Wifi on
and getting an ERROR.
try'd to reboot the phone - wifi not working
try'd to pull out the battery and restart - wifi not working
the only thing that works is when i restart the phone in AIRPLANE MODE the wifi works
but soon as i turn the AIRPLANE MODE off the wifi disconnected and cannot turn
it on again until turn back the AIRPLANE MODE again.
i do not using any data plan connection i dont have any...
what can i do??
Just do a factory reset. That will solve this problem.
Its a known problem. Lot of people are facing it after applying OTA. Just do factory reset and you should be fine.
Wifi ERROR after OTA update
hope you right...some pp'l that done this method complains that it didnt work
ohh shoot lets try!
its no go gives me an error when i need to activate the account via wifi.
this sux
Funkym0nkey said:
Just do a factory reset. That will solve this problem.
Its a known problem. Lot of people are facing it after applying OTA. Just do factory reset and you should be fine.
Click to expand...
Click to collapse
Factory reset doesnt do a thing bro
Hi, I had the same issue actually watch the router and say the wifi connect and then drop, i installed wifi manager and then for some reason it started working and i haven't had a issue since.
no sure why it did this but i also restarted the phone multiple times trying to get it syncing and it wouldn't until that program was installed then after i got connected i uninstalled the app and it still connects without the app
got installed "wifi manager" and again error "error enabling wifi"
Factory resetting does nothing for me, I even formatted the internal memory as well on the third time, the only way so far I have managed to turn wifi and 4g back on and also data as data seems disabled is by:
Enable aeroplane mode, restart and then enable wifi, then go to system updates and you will see the 3 options greyed out, disable aeroplane mode by holding down the power button then click on update motorola software and most of the time that has worked for me.
kc_sheets mentioned installing wifi manager, I have installed it but not restarted my phone as I've managed to get it all temporarily working and Ill test the wifi manager when I have to restart.
Let me know if anyone else can get them all working using my method.
For troubleshooting, I know dmesg is good and probably lsmod, what other linux info can help me find out what the issue it, I would not be surprised if sprint has done something to disable wifi, 4g and data as the phone starts up, but it looks like it only disables at the last minute, does anyones wifi connect as you start the phone up, I think mine may have done.
I'm hoping we can just rename the process or app that is the issue and have a non crippled phone what we paid good money for.
Fisher
just flashed the phone and guess what??
wifi working again!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! w000ttttttttttttttttt
----------------------
after reboot the wifi error starts again.
that means no luck
I'm also out of the States and I just started having wifi issues today. It would see the SSID, try to obtain IP, then fail. I just set a static IP, default gateway, etc... and that did the trick.
jomare711 said:
I'm also out of the States and I just started having wifi issues today. It would see the SSID, try to obtain IP, then fail. I just set a static IP, default gateway, etc... and that did the trick.
Click to expand...
Click to collapse
you dont have wifi problems,its your router problem
my problems are with the wifi connection its not even trying to connect or activated its getting an error when i press the wifi button.
Posted on motorolla forum:
Hey guys, same problem - briefly:
Sprint customer - overseas for the next 6 months,
1. OTA update successful, achieved over wifi
2. phone restarted, wifi connectivity lost "error" as with fisher and the rest
3. airplane mode allows wifi connection until GSM is connected again, at which point it gets knocked off
4. I /also/ fat fingered my phone during one of the restarts and had both wifi and GSM working, but it's my nature to test things, so i restarted and of course now it's gone.
5. I am not able to attempt wally's re-register with Sprint approach as I will be away from the states untill January
6. I tried the update sprint zone fix - no luck
7. I tried the disable roaming guards - same as fisher, some of them are green and grayed out, no luck
Thank you !

WiFi Connect (READ)............

Quick question...when i use to turn on my GTab...it would turn on..and i would be connected to my WiFi. But now..when it turns on..i have to go into settings..and click turn on WiFi...THEN it will connect. How can i get it back like it use to be?
No one knows???????????
I see you're using vegantab, did you use airplane mode? There's a glitch on almost all roms where you turn on airplane mode and you can't deactivate it, even if you turn it off and turn it back on, the tablet will show airplane mode as deactivated but in reality its still on, thats why everytime that you turn on your tablet, you need to turn on wifi. I tried telling people about this problem, but no one seems to care. All gingerbread roms have this problem and some froyo roms.
Strange..ive NEVER touched airplane mode. NEVER. Could i have bumped it somehow and not know??? I doubt that. I would see. Lets say i did...no other way to undo this? But then again..lets say i didnt...why it just start doing this out of no where?
Well the airplane mode problem is what it seemed to me based on the symtoms of the problem, the only way i've been able to get rid of it is to re-install the rom and wipe data & cache
bdds13 said:
Well the airplane mode problem is what it seemed to me based on the symtoms of the problem, the only way i've been able to get rid of it is to re-install the rom and wipe data & cache
Click to expand...
Click to collapse
Thats what im trying to avoid lol. Im not savy with all this. My Tablet was already flashed when i got it. Lucky its not THAT big of a problem. Just weird how it used to connect...then one day it didnt.
Hope i find another trick how to make it connect again. Thanks for replying.

For those with 4.3 Download Issues

All you guys with download issues these are the steps that worked for me...the download went through really fast after doing all this, idk y
1. I disabled Power Saver Mode and all the options obviously
2. I turned off the option in the Settings --> Power --> Turned off the sleep mode where the data connection gets cut off during long periods of inactivity after the screen is off
3. Went to Settings --> Wifi --> Advanced and then turned on the option for best WiFi performance
4. Set the screen time out to 10 minutes, try to keep the screen from timing out just in case and dont use your phone while it is downloading
5. Powercycled my Router and Modem
6. Restarted the Phone and tried to update then!
GOODLUCK!
Sent from my HTC One using Tapatalk 4
Thanks but still no luck
I'm in Ecuador tho
is it possible that the issue might be on AT&T's side. You know, hundreds of thousands of HTC One's downloading a 500mb+ file from their servers?
Try this..
I read somewhere that if you extend your syatem date to nearly a month, it lets u update.. Yes, it does sound insane.. but it did work for some.. so please try the same... I was tierd waiting for update, and so wne ahead with the RUU method directly from HTC.. Note that it will wipe device of all data.. Since i did not have much on it, it was fine for me..
try this trick http://forum.xda-developers.com/showthread.php?t=2480366

[Q] Broke Wifi and fails to power off

Hi, I have a 2 week old handset which has now twice displayed a pretty strange/annoying bug.
I have been using no Stamina settings other than location based WiFi and queue background data for the most part to gauge battery life under my normal work schedule but I noticed last week that my saved WiFi at home wasn't on, so instinctively I tried to click the WiFi symbol but to no avail.
I then tried to restart the phone, but when pressing the power off option, it simply booted me back on to the screen I was on before hand. This continually happened until I got pee'd off and repaired it.
Again today I ran into the exact same problem. No WiFi and I could not power off. After several attempts at powering off I managed to get it to boot into safe mode where I started uninstalling apps to rule out any rogue apps. I still couldn't reboot forcing me to repair and wipe the phone.
I keep telling myself that this is merely a software bug and I can't seem to find other posts where people are suffering similar problems.
So I futilely ask, has anyone ever had anything similar happen to theirs?.
Yeah I think this is a software bug too, a similar thing has happened to me a couple of times with the wifi becoming "stuck" and rebooting the phone fixed it but if you're having trouble shutting down your phone, have you got quickboot enabled? Regardless of that though, you do have two options to force a restart, either hold volume up and power, this will force shutdown or press the small red button next to the sim card tray.
TheOnlyIntruder said:
Yeah I think this is a software bug too, a similar thing has happened to me a couple of times with the wifi becoming "stuck" and rebooting the phone fixed it but if you're having trouble shutting down your phone, have you got quickboot enabled? Regardless of that though, you do have two options to force a restart, either hold volume up and power, this will force shutdown or press the small red button next to the sim card tray.
Click to expand...
Click to collapse
I am pretty sure it is the quick boot option now. Stupid bug.
Phew...don't have to return it now.
I think sony have disabled the quick boot functionality for some reason, I ticked it thinking it might be almost like a reboot instead of power off & then power on, later I noticed the power off menu wasn't doing anything when tapping it, was almost about to do a reset but then remembered I ticked the quick boot option.
Hope they enable it in future updates.

Wifi being stuck on or on/off troubleshooting

So I know this topic has a few posts many a year or so old but I'm looking for a possible work around for this issue. Here's a background of what happened:
I have a rooted note 4 originally running cm12, I wanted to return to a stock build and when I did something happened (can't remember what) and my wifi stopped working it would click on them immediately off my first thought was kernel so I flashed a new one but didn't help I tried a different stock build 5.0.1 instead of 5.1.1 but still same issue. I went back to the cm12 and that seemed to work fine still, I looked for another stock build because I'm stubborn and flashed a different kernel than the previous ones I've tried. This seemed to fix my wifi issue at least for a day then back to the same issues. Anyway here's what I've been messing with to try and figure this out.
I'm focused around the file wpa_supplicant.conf as I've tried restarts and all that but that won't do anything. What I have noticed recently is when I don't have any networks saved in that file I can toggle airplane mode and try toggling wifi, after a few sometimes dozen attempts it comes on and works fine so long as it stays on. If I turn it off I have to restart my process of going into wpa_supplicant.conf>deleting my saved network>toggling airplane>then spamming wifi. As I'm able to repeat this it leads me to believe it's not hardware related, slim chance on loose cable, But if there's a way to prevent the system from auto saving a password that might help with a workaround. I've tried changing that files permissions as well as the ones in the system>etc>wifi folder but they get changed back
Anyway I'm still working on finding the root cause but will update if I find anything also tried deleting the wpa file and that works to after a restart but issue comes back and so does file which doesn't seem to me that its a corruption issue
Update:
So I somehow crashed my Samsung messenger app switch to hangouts and then back so decided to wipe my phone and refresh the OS. I factory reset then advanced wiped cache, dalvik, system and data. When it rebooted I tested the WiFi in the system setup and it worked fine I could turn it on and then off normally so I decided to continue setup once fully setup and no other apps installed I retested the WiFi. It worked fine I connected to an access point and it stayed connected I then forgot the network cycled wifi and tried again and again still worked so I let it sit and would test it throughout the day. About an hour or so later the problem reappeared which was odd. I did my old workaround deleting wpa_supplicant.conf and toggling wifi until it turns on. I got it to turn on and connect to my home WiFi and left it, so far I've kept my wifi on and it's stayed active for 24hours now and reconnects fine to my home router when I'm in range and back to lte when I'm away so right now it seems I can have wifi if I don't toggle it off. Still not sure what's causing this issue as since I'm currently using wifi to write this I don't see it as a hardware issue. After trying multiple kernels I don't see that as the cause either, although possible. Will keep messing around and update if I find anything further
Update 2: so far I've been able to keep my wifi working great as long as I keep it on and don't toggle it off. Doing this has kept it active and auto connecting to my home wifi for a week straight. I make sure to keep wifi I during sleep so it won't disconnect but it also seems to stay active through restarts which is great. This still leads me to believe it's software related and not hardware but not sure where the issue is.
Update 3:
So far I've just kept my wifi on while trying to find the issue. The only other issue I've come across was since my wifi is on 24/7 and auto connects if I want to use my lte instead i have to either turn off wifi or forget my home network which neither is an option. But I have found a solution:
I was able to add a shortcut to my home screen that actually disables the current wifi connection without disabling wifi and forgetting the password. To do this you must have Tasker just create a new task in second tab, I named mine disconnect wifi, click the plus sign and select "net", next select "wifi net" there is an option that says disconnect. Have that selected then go back and thats it,add in icon on bottom right to use as a shortcut. I've tested this and it works great one tap and it disconnects the wifi but keeps wifi turned on and if I want to re connect just go into WiFi settings and choose the one to connect to

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