Database Users

WiFi not working after flashing

I rooted my S4, flashed to a rom, now switched back to stock, wich i updated now.
However since i updated rooting doesn't seem to work anymore,
and whenever i press my wifi button it goes on but immediatly goes off giving me a "Prevention information".
My question now is can i fix my WiFi?
(factory reset did not work)

Pixelhouse said:
I rooted my S4, flashed to a rom, now switched back to stock, wich i updated now.
However since i updated rooting doesn't seem to work anymore,
and whenever i press my wifi button it goes on but immediatly goes off giving me a "Prevention information".
My question now is can i fix my WiFi?
(factory reset did not work)
Click to expand...
Click to collapse
if you flash back a stock ROM u wont have root anymore

Hi newer updates have a security fix that prevents rooting. The fix is in the kernel. Please see this thread to root and fix any warning messages.
http://forum.xda-developers.com/showthread.php?p=40819876
Sent from my GT-I9505 using xda premium

Yeah i figured i lost my root, tried using motochopper but didn't work anymore.
Can i fix my wifi somehow?

Do you have the 9505 version? If so use method in my first post.
Sent from my GT-I9505 using xda premium

Wifi Issue

Hey everybody..
I can't seem to get my wifi to turn on at all. Every time I press the wifi widgets it just sits there and turns off. I try and do it manually same thing.. it just hangs at turning on. I've tried a factory reset and it's still a no go.. anyone else have this problem

The Bouncer said:
Hey everybody..
I can't seem to get my wifi to turn on at all. Every time I press the wifi widgets it just sits there and turns off. I try and do it manually same thing.. it just hangs at turning on. I've tried a factory reset and it's still a no go.. anyone else have this problem
Click to expand...
Click to collapse
loads of peeps have wifi probs.
what's your phone model and which rom you have?

Stock Rom rooted.. SM-N900T

re: wifi issue
The Bouncer said:
Hey everybody..
I can't seem to get my wifi to turn on at all. Every time I press the wifi widgets it just sits there and turns off. I try and do it manually same thing.. it just hangs at turning on. I've tried a factory reset and it's still a no go.. anyone else have this problem
Click to expand...
Click to collapse
Here is the surest way to solve your wifi issue.
Download the official stock Odin flash firmware for your phones baseband and model.
The best and most reliable place to download the firmware is at HTTP://SamMobile.com
Before you odin flash be sure to:
#1: make a nanroid backup of your existing rom.
#2: Do a full wipe including factory reset in recovery.
Good luck!

tbf I would not personnally myself make a nandroid backup of a non working rom.
I'd backup anything I'd need,contacts,messages etc
make sure you use your phones propper rom that it initially came with

Wifi Doesnt Turn On

Hi, i have a problem, the wifi doesnt turn on i have the POF3 Modem and BOG4 Bootloader, any solution?

thetransit123 said:
Hi, i have a problem, the wifi doesnt turn on i have the POF3 Modem and BOG4 Bootloader, any solution?
Click to expand...
Click to collapse
I am also facing similar issue after i upgraded from 4.4 to 5.0 through Odin. My phone is 32 GB, running BTU/UK unbranded firmware. I rooted it to resolve the issue and tried some fixes like Editing ro.securestorage=true, changed it to ro.securestorage=false but it didn't work. Please help.

Redmax! said:
I am also facing similar issue after i upgraded from 4.4 to 5.0 through Odin. My phone is 32 GB, running BTU/UK unbranded firmware. I rooted it to resolve the issue and tried some fixes like Editing ro.securestorage=true, changed it to ro.securestorage=false but it didn't work. Please help.
Click to expand...
Click to collapse
Install this APP and add some screenshots (IMEI not necessary).

thetransit123 said:
Hi, i have a problem, the wifi doesnt turn on i have the POF3 Modem and BOG4 Bootloader, any solution?
Click to expand...
Click to collapse
I am on Stock Lollipop N9005 and facing this issue that wifi and Bluetooth not turning on. Cache cleared Hard reset phone. Problem persists.
Any help please
Sent from My LG G Flex LG-F340K Stock KitKat V20D on LTE Network using XDA Free Mobile app

Joku1981 said:
Install this APP and add some screenshots (IMEI not necessary).
Click to expand...
Click to collapse
Hi, thank you for the reply. I did some work on the device and flashed CM 12.1 via TWRP. Wifi worked good in it but I missed S Pen & S health (S Pen Helper Add-On wasn't good in CM 12.1). Hence, i searched about downgrading to 4.4 KitKat only to get back wifi and Stylus both. I have been partially successful in my effort i.e. I have flashed BTU firmware 4.4. and got the Stylus back but wifi problem persists. The wifi button simply does not turn on. It's different from the problem most people face regarding not scanning particular router or forgetting passwords etc. I am just trying to explain so that you guide me to the specific solution. I have tried short code *#0011# and turned OFF power save mode too but it didn't fix either. I liked the CM 12.1 but the trade off with Stylus was not in my favour therefore I had to revert to Stock ROM. So the current state of my device is shown in screenshots attached. Please help!

Joku1981 said:
Install this APP and add some screenshots (IMEI not necessary).
Click to expand...
Click to collapse
Dear Mr. Joku1981,
I have uploaded the screenshots. Would you please care to respond?

Redmax! said:
Dear Mr. Joku1981,
I have uploaded the screenshots. Would you please care to respond?
Click to expand...
Click to collapse
Install this APP and tell me if the WIFI works finally.

Joku1981 said:
Install this APP and tell me if the WIFI works finally.
Click to expand...
Click to collapse
It didn't fix. Problem still persists. Wifi does not turn on at all.

Redmax! said:
It didn't fix. Problem still persists. Wifi does not turn on at all.
Click to expand...
Click to collapse
I had a similar problem. I just installed this APP from playstore. It worked lke a charm. Now i connects to everything. A friend of mine also said that installing this other APP will help. You can try. :highfive:

Joku1981 said:
I had a similar problem. I just installed this APP from playstore. It worked lke a charm. Now i connects to everything. A friend of mine also said that installing this other APP will help. You can try. :highfive:
Click to expand...
Click to collapse
Tried both the applications. Even rooted my phone for the second app to give it access but nothing worked. IMO these apps can only fix when the wifi button is green but the internet connectivity got some issues like resolving DNS etc. In my case, the wifi button stays grey always. It turns dull green when i tap it and goes back to grey again. From the settings menu, when I swipe the wifi icon right to turn it on, it freezes for a while and gets back to left. I can still use Wifi with Custom ROM like CM 12.1 but I can't compromise the S Pen functionality which is why I returned to Stock ROM. In Stock ROM, Data Network & Bluetooth etc. are working fine. It's just the wifi which won't Turn On at all.

Redmax! said:
Tried both the applications. Even rooted my phone for the second app to give it access but nothing worked. IMO these apps can only fix when the wifi button is green but the internet connectivity got some issues like resolving DNS etc. In my case, the wifi button stays grey always. It turns dull green when i tap it and goes back to grey again. From the settings menu, when I swipe the wifi icon right to turn it on, it freezes for a while and gets back to left. I can still use Wifi with Custom ROM like CM 12.1 but I can't compromise the S Pen functionality which is why I returned to Stock ROM. In Stock ROM, Data Network & Bluetooth etc. are working fine. It's just the wifi which won't Turn On at all.
Click to expand...
Click to collapse
Dial *#0011# and select Menu - WIFI. Make an screenshot of what appears there.

Joku1981 said:
Dial *#0011# and select Menu - WIFI. Make an screenshot of what appears there.
Click to expand...
Click to collapse
Here.

Redmax! said:
Here.
Click to expand...
Click to collapse
Press MENU button and select WIFI and make a new screenshot pls.

Wifi sudddenly broken?
I have been using AICP nightlies and everything has been great.... I was looking around in MiXplorer and dropped my phone (pressing many buttons catching it) and now my wifi will not turn on... at first my data wasn't connected either but then I flashed the http://forum.xda-developers.com/devdb/project/dl/?id=11326 and l got my LTE back but still my wifi will not turn on... . Oh yeah, and it says "Google play services error" persistently... I've I also wiped dalvik cache, cache, system and restored the system i had backed up w/ TWRP . No luck. I tried dirty flashing the newest release for hltespr which was the 20150925 from today with GAPPS-LP and no luck.... Whatever I hit in MiXplorer really effed some stuff up I suppose.. I have a full backup I can flash but it was over a week ago and I will lose a bunch of work..... Anyone have any ideas on how to fix this issue w/out formatting and completely wiping and starting over? If I have to go back a week or two it will truly be detrimental. Thanks in advance to any kind sir who will accept this mission!!!:fingers-crossed:

wifi problems with doze?

hello!
i have installed nolimits rom for my s5 g900f
https://forum.xda-developers.com/ga...om-xxx-limits-1-1-stable-smooth-fast-t3304941
i choose as kernel boeffla and updated the last rev and also installed boeffla config and update it BUT.. my s5 has broken wifi... every time screen is on wifi working fine , no disconnects .. when i close the screen of the phone , and leave it like that for some time.. ( random totally when the wifi will disconnect ) once i will open it again i see wifi connected to my routers but the phone has no internet... after some time or if i close wifi and open it again the internet will be back... i tried to disable doze from boeffla config app and seems like my problem solved or at least its better than before but still not sure since the time that wifi disconnect once screen is off is totally random... but still Doze after same time enable it self again and again.. i tried also boeffla doze disabler app still the same... doze enable it self after some time..
i disabled smart switch , sleep mode for wifi , made fully re-flashing the rom , clean cache lot of times , reset the whole wifi and tried many different routers and settings and also disabled aggressive doze from greenfy and disabled doze from settings of the phone..
what else i can do ? maybe flash new kernel? like this one ?
https://forum.xda-developers.com/galaxy-s5/orig-development/kernel-crazysuperkernel-v1-t3390006
or any other idea to try fix that ?
thanks in advance!

cursing said:
hello!
i have installed nolimits rom for my s5 g900f
https://forum.xda-developers.com/ga...om-xxx-limits-1-1-stable-smooth-fast-t3304941
i choose as kernel boeffla and updated the last rev and also installed boeffla config and update it BUT.. my s5 has broken wifi... every time screen is on wifi working fine , no disconnects .. when i close the screen of the phone , and leave it like that for some time.. ( random totally when the wifi will disconnect ) once i will open it again i see wifi connected to my routers but the phone has no internet... after some time or if i close wifi and open it again the internet will be back... i tried to disable doze from boeffla config app and seems like my problem solved or at least its better than before but still not sure since the time that wifi disconnect once screen is off is totally random... but still Doze after same time enable it self again and again.. i tried also boeffla doze disabler app still the same... doze enable it self after some time..
i disabled smart switch , sleep mode for wifi , made fully re-flashing the rom , clean cache lot of times , reset the whole wifi and tried many different routers and settings and also disabled aggressive doze from greenfy and disabled doze from settings of the phone..
what else i can do ? maybe flash new kernel? like this one ?
https://forum.xda-developers.com/galaxy-s5/orig-development/kernel-crazysuperkernel-v1-t3390006
or any other idea to try fix that ?
thanks in advance!
Click to expand...
Click to collapse
As I understand you - the option: WIFI > Advanced > Keep WIFI on during sleep is set to "Always"?
If yes, just try how it works on stock kernel (most compatible with the rom).
Cheers

Many40 said:
As I understand you - the option: WIFI > Advanced > Keep WIFI on during sleep is set to "Always"?
If yes, just try how it works on stock kernel (most compatible with the rom).
Cheers
Click to expand...
Click to collapse
yes I have set it to always but still....the Wi-Fi is not closing. its Always on but when the screen goes of for unknown period of time and open again the screen the Wi-Fi is connected but without internet ?

anyone? :/

cursing said:
anyone? :/
Click to expand...
Click to collapse
Anything on my second sentence from previous post?

Many40 said:
Anything on my second sentence from previous post?
Click to expand...
Click to collapse
i tried and installed Resurrection remix final , the phone is beast now but the problem remain ,once i will close the phone after random time wifi will lose internet but not the connection with the router... the stock kernel is not the problem because i had always custom kernel and was working,i can try stock rom and kernel too but im sure the problem will remain...maybe wifi card is damaged on the hardware?maybe need another modem to flash ? is modem responsible for wifi too or gsm only?

Wifi not turning on (i9505 - Stock rom)

Hi. After trying a couple of custom roms, I wanted to go back to a stock rom via Odin. I actually succeeded. The phone boots, and android setup screen comes. But in the "wifi connection" screen, when I touch the button to turn the wifi on, it just refuses to turn on. It goes back to off position. I have tried several different country's stock roms (4.4.2 only, I haven't tried 5.0) and they all ended up the same. I just can not turn wifi on in stock rom. Wifi works in custom roms that I installed using TWRP.
Any idea why this happens?
By the way, I also tried flashing different modems, but the result is the same. I read that turning off the phone and removing the battery helps, however, in my case, it didn't.
Any help is greatly appreciated.
EDIT: As I have looked into the issue, some people claim that a custom kernel usually solves wifi problems. I haven't tried it yet but I will as soon as I can get my hands on the phone. Also in another post, I have seen a build.prop tweak "ro.securestorage.support=false" which is claimed to have solved the wifi issues. I am writing these to be of help to others that might encounter the same problem. I will update the post after trying these ideas.
EDIT 2: It turns out, when you flash a stock rom, Odin can't actually flash the modem partition. It seems like it does but it actually fails. You have to do it twice.

No Wifi
Hi,
have some trouble with my Galaxy S4 (GT-I9505). Since 2 weeks I'm trying to get wifi working. 2 weeks ago I decided to root the phone (everything complete stock Android 5.0.1). At this moment wifi was working well..
I did:
- Flash TWRP with Odin
- Flash magisk 18.1
--> booted phone..
Everything seemed to work well..expect wifi. It wouldn't turn on. When trying to activate the WiFi button by sliding to the right it stays grey and after 10 sec. the slider goes to the right side again.
What I've done:
Downloaded several stock firmwares from sammobile --> no wifi
Flashed serveral custome rom's (lineage 14.1, 15.1), android 5.0 and 4.4 based --> no wifi
Tried differnt kernels --> no wifi
Flashed different bootloaders and modems--> no wifi.
Tried to delete files in /wifi folder suggested here in forum --> no wifi
Tried to modify buil.prob set the security value to false suggested here in forum --> no wifi
I don't think thats a damage on the hardware. It must be a software issue?
Bluetooth and mobile data are working well. GPS and wifi seem to be broken.
After spedning weeks of flashinng, recovering etc.. I am frustrated and don't know what to do.
Any advices?

My wifi is not being enabled with this rom. Does anyone know how to solve?