[Q] Wifi won't turn on - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

Hello,
I've search for a couple of hours in the posts but I can't find anything that works.
I woke up this morning and all of a sudden my wifi won't turn on.
I've been on the Google Play Edition v1.2, Android Version 4.4.4, Baseband NJ4 for about 3 months and no problems at all. Literally just woke up this morning and my wifi won't turn on.
I just re-flashed the most up-to-date NJ4 kernel and the problem still remains.
Any recommendations?

Try flashing a different kernel

bstylz911 said:
Try flashing a different kernel
Click to expand...
Click to collapse
Thanks for the info. Can I flash any kernel, or does it need to be a specific version?

polarbearskill said:
Thanks for the info. Can I flash any kernel, or does it need to be a specific version?
Click to expand...
Click to collapse
I would just try different ones honestly

Related

[Q] Wifi + LTE problems

Alright. So mostly i don't post on forums because usually i can search around and find the answers elsewhere. But this time i couldnt seem to figure it out. So i have a GS4 i337m on stock with ktoonz kernel and the mg1 baseband. Ever since i flashed the ktoonz kernel i couldnt seem to connect to wifi anymore. tried installing multiple other kernels (even stock) with no luck. I eventually gave up and went to cyanogenmod 10.1 nightlys. This time, wifi worked but i couldnt get ANY sort of network access. I remember in my GS3 days i had to use a MMI code and change some things in there to get it to work, and im not sure how on this phone anymore. Now, i switched to the infamous rom with the same results as CM 10.1. I really preferably just want to get CM 10.1 working with DATA and not have to resort to factory reset. I know this forum is filled with geniuses lol, any suggestions???! Help would be greatly appreciated
Canadian Wifi Fix
Hi there,
try looking for a Canadian Wifi fix. I don't recall which thread i found it but for any rom i flash which i cannot turn on wifi, i just flash that zip and it works for me. i'm using an i337m
msg me if you can't find it, i'll see if i can post it
Im sorry what rom did you have the problem with? You didn't list that.
TheAxman said:
Im sorry what rom did you have the problem with? You didn't list that.
Click to expand...
Click to collapse
Stock 4.2.2 rom with ktoonz kernel
try this
Hi There,
Sorry i forgot which thread i got this from but each time i flash a new rom where i cannot turn on WIFI, i would flash this attached ZIP in recovery and it would resolve the problem. At least for my i337M

[Q] Problems with WIFI & BT when using custom ROMs

Hi guys.
I bought my Nexus 4 (after selling me old Galaxy S2) a few hours ago and I'm running into some issues.
Whenever I'm on a ROM that isn't Stock, my wifi or wifi + BT aren't working. The WiFi status is always 'Turning on wifi...' and never changes, and occasionally its the same for Bluetooth.
I've tried installing CM11, Carbon and AOKP, changing kernels, even flashing the stock radio to see if anything changes, but it all stays the same.
Another thing I've noticed (I don't know if it has anything to do with the WiFi, but it could be) is that on AOKP and on the Carbon, I can't click the top right button in the notification bar (the one that shows you all the toggles).
The thing is that whenever I flash back to Stock 4.4, everything is ok, and both the WiFi and BT are working as planned.
I'm actually clueless after trying anything I could think of. Does any of you have any idea what's going on?
Thanks in advance.
Ardethian said:
Hi guys.
I bought my Nexus 4 (after selling me old Galaxy S2) a few hours ago and I'm running into some issues.
Whenever I'm on a ROM that isn't Stock, my wifi or wifi + BT aren't working. The WiFi status is always 'Turning on wifi...' and never changes, and occasionally its the same for Bluetooth.
I've tried installing CM11, Carbon and AOKP, changing kernels, even flashing the stock radio to see if anything changes, but it all stays the same.
Another thing I've noticed (I don't know if it has anything to do with the WiFi, but it could be) is that on AOKP and on the Carbon, I can't click the top right button in the notification bar (the one that shows you all the toggles).
The thing is that whenever I flash back to Stock 4.4, everything is ok, and both the WiFi and BT are working as planned.
I'm actually clueless after trying anything I could think of. Does any of you have any idea what's going on?
Thanks in advance.
Click to expand...
Click to collapse
Hello, you have to flash older radio to enable wifi. Try version 84. Just flash the zip from CWM.
http://forum.xda-developers.com/showthread.php?t=2087227
toycz said:
Hello, you have to flash older radio to enable wifi. Try version 84. Just flash the zip from CWM.
http://forum.xda-developers.com/showthread.php?t=2087227
Click to expand...
Click to collapse
Hi, thanks for the reply.
I noticed that a lot of my sensors are dead as well when not using a stock rom.
I've had nothing but Android devices for the past 4 years, but in this case, I don't know whether the radio solution can solve the problem, since it looks more like a Kernel issue, or am I wrong?
Isn't the radio supposed to affect only wifi and BT? What about the other sensors?
Will try that soon though, phone has 2% battery.
Ardethian said:
Hi, thanks for the reply.
I noticed that a lot of my sensors are dead as well when not using a stock rom.
I've had nothing but Android devices for the past 4 years, but in this case, I don't know whether the radio solution can solve the problem, since it looks more like a Kernel issue, or am I wrong?
Isn't the radio supposed to affect only wifi and BT? What about the other sensors?
Will try that soon though, phone has 2% battery.
Click to expand...
Click to collapse
I'm having a similar issue. On nexus 4 phone with current stock ROM running 4.4.2, I tried Cyanogenmod 10.1.3 but wifi was always in trying to connect mode, never managed to turn it on/off. The same behavior is on miui ROM but on stock everything works fine!
tushargok said:
I'm having a similar issue. On nexus 4 phone with current stock ROM running 4.4.2, I tried Cyanogenmod 10.1.3 but wifi was always in trying to connect mode, never managed to turn it on/off. The same behavior is on miui ROM but on stock everything works fine!
Click to expand...
Click to collapse
Are you running the .98 radio with 4.4.2?
4.4.2 WIFI and Bluetooth connection issues
Ardethian said:
Hi guys.
I bought my Nexus 4 (after selling me old Galaxy S2) a few hours ago and I'm running into some issues.
Whenever I'm on a ROM that isn't Stock, my wifi or wifi + BT aren't working. The WiFi status is always 'Turning on wifi...' and never changes, and occasionally its the same for Bluetooth.
I've tried installing CM11, Carbon and AOKP, changing kernels, even flashing the stock radio to see if anything changes, but it all stays the same.
Another thing I've noticed (I don't know if it has anything to do with the WiFi, but it could be) is that on AOKP and on the Carbon, I can't click the top right button in the notification bar (the one that shows you all the toggles).
The thing is that whenever I flash back to Stock 4.4, everything is ok, and both the WiFi and BT are working as planned.
I'm actually clueless after trying anything I could think of. Does any of you have any idea what's going on?
Thanks in advance.
Click to expand...
Click to collapse
If the custom roms you are using are based on 4.4.2 it may be a problem with the newer kernel. This article recommends flashing the 4.4 kernel as a possible fix.
http://www.androidpolice.com/2013/1...-still-suffer-from-assorted-bluetooth-issues/

4.4.x update makes wifi not work

ever since updating to kitkat my nexus 4 is running in to a lot of issues with wifi, when i turn on my device wifi would work for about ten minutes and then stop, while still sowing connected to my home network but unable to load a page in chrome or send a message in whatsapp. if i downgrade back to 4.3 everything works fine again but updating again would do the same thing. even installing a custom ROM like CM11 would make wifi unusable while CM10.x would work fine.
Try flashing different radio. Use the one that comes with 4.3.
arffrhn said:
Try flashing different radio. Use the one that comes with 4.3.
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Click to collapse
ware can i find it?
leejenshil said:
ware can i find it?
Click to expand...
Click to collapse
In general section, there are threads called modem collection. You can start there.
Sent from a battery powered device.

[Q] WiFi won't turn on?

So I've just flashed Matr1x on top of PAC, and everything was working great, but now my Wi-Fi doesn't turn on. It'll say "Turning on Wi-Fi, but it never does. I've tried flashing stock radio, since I have a LTE radio flashed, but that didn't change anything. I've tried rebooting and waiting for 2 minutes before turning it on, still didn't work. I've tried flashing HellsCore instead, but to no avail. Any ideas? Thanks!
This happened to me when I flashed Francos kernel. I flashed the beta r209 and it worked. There was an issue in original kernel of 4.4.2. And many custom kernel use the same WiFi settings as stock.
Cocoa rybrsw
androidlosernoob said:
So I've just flashed Matr1x on top of PAC, and everything was working great, but now my Wi-Fi doesn't turn on. It'll say "Turning on Wi-Fi, but it never does. I've tried flashing stock radio, since I have a LTE radio flashed, but that didn't change anything. I've tried rebooting and waiting for 2 minutes before turning it on, still didn't work. I've tried flashing HellsCore instead, but to no avail. Any ideas? Thanks!
Click to expand...
Click to collapse
It's an issue with 4.4.2 kernels and 4.4.4 roms. You could try this fix if you dont't want to change your kernel
http://forum.xda-developers.com/showpost.php?p=53132436&postcount=6487
danmen2 said:
It's an issue with 4.4.2 kernels and 4.4.4 roms. You could try this fix if you dont't want to change your kernel
http://forum.xda-developers.com/showpost.php?p=53132436&postcount=6487
Click to expand...
Click to collapse
Fixed it! I ended up flashing an earlier version of Matr1x and now everything's all good, except my wifi quality is really bad. I'm in my room, which is 50 feet from the router, but I barely get a bar. Whereas my laptop has a perfect 5 bars.
You can try hellscore kernel
androidlosernoob said:
Fixed it! I ended up flashing an earlier version of Matr1x and now everything's all good, except my wifi quality is really bad. I'm in my room, which is 50 feet from the router, but I barely get a bar. Whereas my laptop has a perfect 5 bars.
Click to expand...
Click to collapse
danmen2 said:
It's an issue with 4.4.2 kernels and 4.4.4 roms. You could try this fix if you dont't want to change your kernel
http://forum.xda-developers.com/showpost.php?p=53132436&postcount=6487
Ignore this, I simply rebooted it and everything's running smoothly, thank you!
Click to expand...
Click to collapse
androidlosernoob said:
danmen2 said:
It's an issue with 4.4.2 kernels and 4.4.4 roms. You could try this fix if you dont't want to change your kernel
http://forum.xda-developers.com/showpost.php?p=53132436&postcount=6487
Click to expand...
Click to collapse
Ignore this, I simply rebooted it and everything's running smoothly, thank you!
Click to expand...
Click to collapse

Wifi is disconnecting on screen off

So I tried 3 differents roms and all of them had the same issue and I can't fix it.
I tested with stock rom, stock kernel or blu spark kernel. I tried bliss rom and now I am using Codename Phoenix rom.
But I always have the same issue after going to Android Pie, my wifi get disconnected after a few minutes of screen off. My global wifi_sleep_policy is to always enabled but it is not working.
Does anyone have a fix for it?
archraziel said:
So I tried 3 differents roms and all of them had the same issue and I can't fix it.
I tested with stock rom, stock kernel or blu spark kernel. I tried bliss rom and now I am using Codename Phoenix rom.
But I always have the same issue after going to Android Pie, my wifi get disconnected after a few minutes of screen off. My global wifi_sleep_policy is to always enabled but it is not working.
Does anyone have a fix for it?
Click to expand...
Click to collapse
For Pie custom roms you need pie firmware too, checked that?
strongst said:
For Pie custom roms you need pie firmware too, checked that?
Click to expand...
Click to collapse
I was using stock 9.0.4 before trying the custom ROMs. Wouldn't the firmware be automatically updated ?
I will have a look into that, maybe reflash the firmware.
archraziel said:
I was using stock 9.0.4 before trying the custom ROMs. Wouldn't the firmware be automatically updated ?
I will have a look into that, maybe reflash the firmware.
Click to expand...
Click to collapse
The you have 9.0.4 firmware, but try to flash again. Also make sure it's not a custom kernel issue.
strongst said:
The you have 9.0.4 firmware, but try to flash again. Also make sure it's not a custom kernel issue.
Click to expand...
Click to collapse
My current rom is Codename Phoenix, I tried about 3 different kernel to make sure is not a kernel related.
My current baseband is mpsss.at.2.0.c4.7-00070-8998_gen_pack-2.132073.1.179387.1
If I flash the firmware/modem from OOS 9.0.5, will it break something?
archraziel said:
My current rom is Codename Phoenix, I tried about 3 different kernel to make sure is not a kernel related.
My current baseband is mpsss.at.2.0.c4.7-00070-8998_gen_pack-2.132073.1.179387.1
If I flash the firmware/modem from OOS 9.0.5, will it break something?
Click to expand...
Click to collapse
No it won't break something, you can try to update it, maybe it's running then for CNP rom
strongst said:
No it won't break something, you can try to update it, maybe it's running then for CNP rom
Click to expand...
Click to collapse
So I reflash the firmware+modem form this page
https://forum.xda-developers.com/showpost.php?p=76943628&postcount=8
I flashed the 9.0.5 version, but the problem persist, after a few minutes of screen off the wifi just disconnect and I have to unlock and enter the app to receive the notifications.
I realized the problem is that for some reason whatsapp is being killed in the background even after I put it to not be battery optimized.
Will try to make it a sysapp to see if works
archraziel said:
I realized the problem is that for some reason whatsapp is being killed in the background even after I put it to not be battery optimized.
Will try to make it a sysapp to see if works
Click to expand...
Click to collapse
Your wifi disconnects cause YouTube gets killed in the background
strongst said:
Your wifi disconnects cause YouTube gets killed in the background
Click to expand...
Click to collapse
I fixed my wifi , it was caused by some new firmware installed in the router that had a bug that caused all my devices to disconnect when idle.
The new problem now is that my apps are being closed/killed after the screen is off for a few minutes I tried to turn off Baterry Optimization but it did not work.
If I put my phone to charge this behavior does not happen my phone does not kill the apps.
archraziel said:
I fixed my wifi , it was caused by some new firmware installed in the router that had a bug that caused all my devices to disconnect when idle.
The new problem now is that my apps are being closed/killed after the screen is off for a few minutes I tried to turn off Baterry Optimization but it did not work.
If I put my phone to charge this behavior does not happen my phone does not kill the apps.
Click to expand...
Click to collapse
Thanks for the information. To help others you can mark the thread as [SOLVED] and add an info to the first post that it was your routers firmware and not the smartphone
After some time and a lot more of test I find out it wasnt my router firmware problem
The only thing that really solved the problem was installing this mod:
https://forum.xda-developers.com/oneplus-5/themes/magisk-pixel-2-wifi-mod-t3752321
Thanks and this thread can be closed now.

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