have lost wifi - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

It seemed the instructions to root my s4 were simple enough with odin so I started it but when I rebooted and got ready to use towel root it said I needed a wife connection but it wouldn't turn on. it seems this has been a common problem but none of the fixes worked for me. At this point I need the necessary files to flash back to a workable system. None I have tried have gotten wife to work. I also might need a new pit file as well. Can anybody direct me, nothing I have tried yet has fixed this for me. I don't have to root, I just want wifi fixed, thanks

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[Q] MK2 - Wifi and Mobile Data not working

EDIT: I was able to get mobile data working by manually putting in APN information. Sometimes the Wifi will show APs to connect to and when I try it just stalls and then auto turns back off.
I have frequented these forums for years now without really needing to post a thing or ask a question til now. I have also looked all over the forums and subforums and google for a solution.
I was updated to MK2 as soon as I got my phone. I then was able to root it successfully and installed SafeStrap. I never really got to play with it much and from what I read it didnt really work at all with this build. Anyhow, I decided to go ahead and do a factory reset via the stock recovery and all went fine. I then decided to try and get rid of some bloatware since I cant by any other means currently. I stumbled upon SchoolSux script TrulyClean and ran it. After it was successful I booted back up to notice that my Wifi and Data wasnt working at all. I am able to make calls and text and the phone functions correctly thus far.
I have tried installing modems via Odin, SS TWRP Recovery and even tried connecting to Kies to perhaps get all stock again. Which at this point would be great. I have even tried going down to the MJ6 Modem FW with success but still nothing.
I really need some help and pointers here guys. Of course I rushed this all and didnt make a back up, I expect to be flamed for that, lol. Thanks in advance for any help.
It is the I337 - ATT with MK2 4.3
hmm
Well I was able to get Deadly Venom SS Edi. on my ROM 1 emu via SS and everything works fine. So it seems like I just need like a fresh pure install of the full MK2 build am i right?
Well I wanted to avoid this but following Ted77USA's post found here http://forum.xda-developers.com/showthread.php?t=2573080&nocache=1 POST #3. I followed it verbatim even though i wasnt completely bricked, just didnt have WIFI and APN settings auto load. However, following it word for word got me back to original condition with working wifi and APN auto populated.
THANK YOU SO MUCH TED!
funkmastersquirrel said:
Well I wanted to avoid this but following Ted77USA's post found here http://forum.xda-developers.com/showthread.php?t=2573080&nocache=1 POST #3. I followed it verbatim even though i wasnt completely bricked, just didnt have WIFI and APN settings auto load. However, following it word for word got me back to original condition with working wifi and APN auto populated.
THANK YOU SO MUCH TED!
Click to expand...
Click to collapse
Glad that all worked out for u and got your phone back......:good::good:......FIRST THANKS FROM ME.....

[Q] Mobile Hotspot TetheringProvision.apk Modification Isn't Working

First off, hi everyone. This is my first post here after browsing for a few weeks. Yesterday I went ahead and rooted my AT&T s4 with the whole reason for doing so wanting to use wireless hotspot for free, and it isn't working.
Tl;dr I tried the TetheringProvision.apk mod technique and it just crashes my settings menu.
Full story:
After softbricking my phone and having to bring it into att 2 days ago I finally figured out a method of rooting it. I got this phone very recently and it came with the 4.4.2 (NB1) update pre-installed. I used the downgrade/root/safestrap method (using the OTA zip method because the stock with root zip wouldn't get past the att splash screen) and am back on 4.4.2/NB1. Everything is working, root included (verified by successfully changing system file names), but when I try to put in the TetheringProvision.apk file that used to work for the hotspot on my old MK2 phone from some other thread on this forum it just crashes my settings menu. The error I get is a "settings has stopped" popup and it kicks me out right when I move the "mobile hotspot on" slider. I'm really hoping there's a simple solution here, but if worst comes to worst I guess I'll just have to try a different rom? Attached is a screen shot of my about device. I really hope someone will be able to help, thanks in advance.
Ok, so I'm now thinking about backing up this rom in safestrap, and re-flashing the backup I made of the MK2 downgrade that I used to install the root. The problem with that was the wifi not working, but I just found a post about bypasslkm. Only problem is that I don't fully understand how to use bypasslkm and even through search I can't find a good guide on it. Could anyone here walk me through the dumbed down version of how to use it? From what I understand I flash the bypasslkm.zip just like I would any other rom, but I don't really get what to do after that. I'm kind of surprised that I'm the first one to have either of these issues, I couldn't find any good information via search.
TaylarRoids said:
First off, hi everyone. This is my first post here after browsing for a few weeks. Yesterday I went ahead and rooted my AT&T s4 with the whole reason for doing so wanting to use wireless hotspot for free, and it isn't working.
Tl;dr I tried the TetheringProvision.apk mod technique and it just crashes my settings menu.
Full story:
After softbricking my phone and having to bring it into att 2 days ago I finally figured out a method of rooting it. I got this phone very recently and it came with the 4.4.2 (NB1) update pre-installed. I used the downgrade/root/safestrap method (using the OTA zip method because the stock with root zip wouldn't get past the att splash screen) and am back on 4.4.2/NB1. Everything is working, root included (verified by successfully changing system file names), but when I try to put in the TetheringProvision.apk file that used to work for the hotspot on my old MK2 phone from some other thread on this forum it just crashes my settings menu. The error I get is a "settings has stopped" popup and it kicks me out right when I move the "mobile hotspot on" slider. I'm really hoping there's a simple solution here, but if worst comes to worst I guess I'll just have to try a different rom? Attached is a screen shot of my about device. I really hope someone will be able to help, thanks in advance.
Click to expand...
Click to collapse
There is a tethering AddOn in the same NB1_100%_Stock_Rooted_ROM & NB1 KeepRoot OTA zip thread that you can flash in safestrap.

Wifi problem on SGH i337

Hey all! so.. my friend came from U.S and he got me a used Galaxy 4 from AT&T, and the Wifi is just stuck on a green grey situation, its not on or off
i tried any solution online that i could find. i don't know what to do anymore. nothing helping the things that are only helping was changing the router settings to a different encryption mode from WEP and then its worked but when i connected my gs4 to a different wifi connection the problem happened again
the wifi can work days if I'm not switching wifi spots.
my only solution by now was just to change to a whole new custom ROM
the problem is, that i have NO IDEA how to do it due the fact that i have a mac and i couldn't find a Proper noob guide from scratch to do that. please help me! i am a graphic designer and an artist with a MA in fine arts and i would love to help u guys too
Thank you so much!
elirandahan.com
This is what I used to get adb/fastboot on my iMac. I am on MDL build, early version phone.
You will need to find you build number first. Under Settings/About Device to determine how to flash roms on the phone--a screen of that page may help also--
rugmankc said:
This is what I used to get adb/fastboot on my iMac. I am on MDL build, early version phone.
You will need to find you build number first. Under Settings/About Device to determine how to flash roms on the phone--a screen of that page may help also--
Click to expand...
Click to collapse
hey thanks i added a photo but apparently i need 10 posts at least so just add www i58.tinypic.com/v41bue.png
the wifi is working cuz i restart it to manufacture settings again but soon as i will disconnect him and join a different connection he will go grey again
From the PM photo you are on NB1 build--
If you are going to root to flash a custom rom you will need the below two links--
Read Op page of first link, I think it depends on how the phone got to NB1 as which steps you need.
http://forum.xda-developers.com/showthread.php?t=2616221
You will need SafeStrap in below link. So, read up on that.
http://forum.xda-developers.com/showthread.php?t=2448925
These are if you are going to root to flash a rom. You can only flash Touch Wiz roms and no custom kernels or recovries.
If you want to get back to stock status you will need to flash the appropriare firmware and use Odin on a PC and Heimdall on Mac. Will have to research that.
What carrier are you on and where you are at?
Was the phone ever rooted--
I never returned to stock or used SafeStrap, so someone with hands on experience will have to help on that.
Hiii....I am also having the same problem.My phone was unlocked by a guy and everything was working fine then.From next day the i could not turn on WiFi(It would go grayish for some time and then return to normal).I tried searching for it online and found the following soln
1)Reboot and check(Didn't work)
2)Factory Reset:After doing this it worked for that initial scanning but again was back to normal once wifi was switched off
3)Factory reset and installed root browser(my phone is rooted as i was able to install root explorer) and tried renaming the wpa-supplant config file
.This was worked for me for like 4 days.
After that again the problem is back and its even worse.It is immediately turning off as opposed to delay in previous case.When i tried to follow the same procedure the config files are not present.I could not on wifi even after factory reset even once
As i am a new around here detailed help would be appreciated;
My Device Features:
1)Andriod:4.4.2,SGH I337
2)Baseband:I337UCUFNC1
3)kernel Version:3.4.0-1125940
4)Build No:KOT49H.I337UCUFNC1

Wifi Wont Turn On ($20 Reward)

Hi, I have a very bad problem and need some tips on how to fix the problem. If you successfully fix the problem for me I will pay you a reward of $20 via PayPal or Bitcoin.
I have a Rooted Samsung Galaxy S5 Verizon (SM-G900V) Running Android 4.4.4
Everything has been going fine and I have used my Galaxy S5 with no problems for around 6 months now, however I ran into an issue a week ago. My issue started after I tried changing my Mac Address (Spoofing it). I used PryFi:
● PryFi
*play.google.com/store/apps/details?id=eu.chainfire.pryfi&hl=en&referrer=utm_source%3Dgoogle%26utm_medium%3Dorganic%26utm_term%3Dpryfi&pcampaignid=APPU_1_ujKoVb-zO4Su-AGNiIC4AQ
I granted root access to the application via SuperSU. I also enabled the 'Mac Spoofing While Connected' option.
When I turned off the application my WiFi was fine for a while, I could turn the WiFi on and off, my problem didn't happen until I did a reboot when I rebooted I was unable to turn on WiFi ever again.
The application PryFi broke my entire WiFi, now I am able to only use the Internet with my data connection WiFi does not work at all.
I have tried a few things, however none have been successful yet.
I have did a factory reset and it still has not fixed my WiFi problem.
The WiFi will not turn on at all. It is stuck on Gray.
Bluetooth works fine, however WiFi does not.
If you're able to help me with this issue successfully I will reward you with $20 via PayPal, or Bitcoin.
Thank you,
Ferragamo
Ferragamo said:
Hi, I have a very bad problem and need some tips on how to fix the problem. If you successfully fix the problem for me I will pay you a reward of $20 via PayPal or Bitcoin.
I have a Rooted Samsung Galaxy S5 Verizon (SM-G900V) Running Android 4.4.4
Everything has been going fine and I have used my Galaxy S5 with no problems for around 6 months now, however I ran into an issue a week ago. My issue started after I tried changing my Mac Address (Spoofing it). I used PryFi:
● PryFi
*play.google.com/store/apps/details?id=eu.chainfire.pryfi&hl=en&referrer=utm_source%3Dgoogle%26utm_medium%3Dorganic%26utm_term%3Dpryfi&pcampaignid=APPU_1_ujKoVb-zO4Su-AGNiIC4AQ
I granted root access to the application via SuperSU. I also enabled the 'Mac Spoofing While Connected' option.
When I turned off the application my WiFi was fine for a while, I could turn the WiFi on and off, my problem didn't happen until I did a reboot when I rebooted I was unable to turn on WiFi ever again.
The application PryFi broke my entire WiFi, now I am able to only use the Internet with my data connection WiFi does not work at all.
I have tried a few things, however none have been successful yet.
I have did a factory reset and it still has not fixed my WiFi problem.
The WiFi will not turn on at all. It is stuck on Gray.
Bluetooth works fine, however WiFi does not.
If you're able to help me with this issue successfully I will reward you with $20 via PayPal, or Bitcoin.
Thank you,
Ferragamo
Click to expand...
Click to collapse
Have you done a reflash? A factory reset just wipes /data, won't really fix anything...
Sent from my Tw5ted SM-G900A using Tapatalk
Get TWRP.
Clear Cache, dalvik
clear data, system
Flash stock firmware via odin. Will fix the issue.
Ferragamo said:
Hi, I have a very bad problem and need some tips on how to fix the problem. If you successfully fix the problem for me I will pay you a reward of $20 via PayPal or Bitcoin.
I have a Rooted Samsung Galaxy S5 Verizon (SM-G900V) Running Android 4.4.4
Everything has been going fine and I have used my Galaxy S5 with no problems for around 6 months now, however I ran into an issue a week ago. My issue started after I tried changing my Mac Address (Spoofing it). I used PryFi:
● PryFi
*play.google.com/store/apps/details?id=eu.chainfire.pryfi&hl=en&referrer=utm_source%3Dgoogle%26utm_medium%3Dorganic%26utm_term%3Dpryfi&pcampaignid=APPU_1_ujKoVb-zO4Su-AGNiIC4AQ
I granted root access to the application via SuperSU. I also enabled the 'Mac Spoofing While Connected' option.
When I turned off the application my WiFi was fine for a while, I could turn the WiFi on and off, my problem didn't happen until I did a reboot when I rebooted I was unable to turn on WiFi ever again.
The application PryFi broke my entire WiFi, now I am able to only use the Internet with my data connection WiFi does not work at all.
I have tried a few things, however none have been successful yet.
I have did a factory reset and it still has not fixed my WiFi problem.
The WiFi will not turn on at all. It is stuck on Gray.
Bluetooth works fine, however WiFi does not.
If you're able to help me with this issue successfully I will reward you with $20 via PayPal, or Bitcoin.
Thank you,
Ferragamo
Click to expand...
Click to collapse
The wifi system is corrupted..
if u need to fix this you must get the whole rom(os)...download latest stock rom or any cusom rom and flash it via odin..or recovery..this will fix the wifi problem...always take a nandroid backup before doing any changes to system...even i had this issue on my redmi note 4g but its fixed by nandroid backup..coz i regularly take backup....i hopr this helps
HIT THANKS BUTTON IF ITs HELPED
I am really upset about myself for not taking a backup as stated. I will from now on take backups all the time before doing anything that could corrupt my phone from now on.
I still haven't tested this to see if it will fix my phone, I will test this within the next day or so.
I do have a question, right now I'm on vacation in the Outer Banks with no computer access at the moment. Is there a way to do what I require to fix the WiFi problem without a computer?
Ferragamo said:
I am really upset about myself for not taking a backup as stated. I will from now on take backups all the time before doing anything that could corrupt my phone from now on.
I still haven't tested this to see if it will fix my phone, I will test this within the next day or so.
I do have a question, right now I'm on vacation in the Outer Banks with no computer access at the moment. Is there a way to do what I require to fix the WiFi problem without a computer?
Click to expand...
Click to collapse
Yes you can do it through mobil odin or flashfire, i would wait though incase something goes haywire and you get stuck on vacation with no phone, i've been there, take it from me, you don't.
Sent from my Tw5ted SM-G900A using Tapatalk
Ferragamo said:
I am really upset about myself for not taking a backup as stated. I will from now on take backups all the time before doing anything that could corrupt my phone from now on.
I still haven't tested this to see if it will fix my phone, I will test this within the next day or so.
I do have a question, right now I'm on vacation in the Outer Banks with no computer access at the moment. Is there a way to do what I require to fix the WiFi problem without a computer?
Click to expand...
Click to collapse
better flash twrp or cwm custom recovert and download the stock rom and keep the rom file on sdcard...anytime anywhere you can flash rom...and get fixed....
HIT THANKS BUTTON IF ITs HELPED
---------- Post added at 03:52 PM ---------- Previous post was at 03:52 PM ----------
Ferragamo said:
Hi, I have a very bad problem and need some tips on how to fix the problem. If you successfully fix the problem for me I will pay you a reward of $20 via PayPal or Bitcoin.
I have a Rooted Samsung Galaxy S5 Verizon (SM-G900V) Running Android 4.4.4
Everything has been going fine and I have used my Galaxy S5 with no problems for around 6 months now, however I ran into an issue a week ago. My issue started after I tried changing my Mac Address (Spoofing it). I used PryFi:
● PryFi
*play.google.com/store/apps/details?id=eu.chainfire.pryfi&hl=en&referrer=utm_source%3Dgoogle%26utm_medium%3Dorganic%26utm_term%3Dpryfi&pcampaignid=APPU_1_ujKoVb-zO4Su-AGNiIC4AQ
I granted root access to the application via SuperSU. I also enabled the 'Mac Spoofing While Connected' option.
When I turned off the application my WiFi was fine for a while, I could turn the WiFi on and off, my problem didn't happen until I did a reboot when I rebooted I was unable to turn on WiFi ever again.
The application PryFi broke my entire WiFi, now I am able to only use the Internet with my data connection WiFi does not work at all.
I have tried a few things, however none have been successful yet.
I have did a factory reset and it still has not fixed my WiFi problem.
The WiFi will not turn on at all. It is stuck on Gray.
Bluetooth works fine, however WiFi does not.
If you're able to help me with this issue successfully I will reward you with $20 via PayPal, or Bitcoin.
Thank you,
Ferragamo
Click to expand...
Click to collapse
i am waiting for your reward.....lol
HIT THANKS BUTTON IF ITs HELPED
devwaseem said:
better flash twrp or cwm custom recovert and download the stock rom and keep the rom file on sdcard...anytime anywhere you can flash rom...and get fixed....
HIT THANKS BUTTON IF ITs HELPED
---------- Post added at 03:52 PM ---------- Previous post was at 03:52 PM ----------
i am waiting for your reward.....lol
HIT THANKS BUTTON IF ITs HELPED
Click to expand...
Click to collapse
They dont have a computer to flash a recovery, furthermore, even if they did, or if they used flashfire or mobile odin(assuming they have root), you cant get a recovery on a G900V, attempting your instructions would certaintly brick the phone.
Sent from my Tw5ted SM-G900A using Tapatalk
Ferragamo said:
I am really upset about myself for not taking a backup as stated. I will from now on take backups all the time before doing anything that could corrupt my phone from now on.
I still haven't tested this to see if it will fix my phone, I will test this within the next day or so.
I do have a question, right now I'm on vacation in the Outer Banks with no computer access at the moment. Is there a way to do what I require to fix the WiFi problem without a computer?
Click to expand...
Click to collapse
Ferragamo,
Verizon's S5 has a locked bootloader, meaning any attempt to load/flash/Odin anything besides the factory firmware will fail (and sometimes end up in tears).
It seems that a major cleanup and then reflashing the latest firmware should resolve the issue.
You can follow my directions bellow to get it done at home (takes about 30 minutes on a fast internet connection), but yes, you'd need your computer.
Or you can stop by BestBuy and have them flash a new firmware on your phone for you.
Step-by-step Directions:
1- Start by downloading the correct USB drivers for your phone, and install them (open the exe file as administrator on your PC):
http://www.samsung.com/us/support/owners/product/SM-G900VZKAVZW
2- Download and install Samsung Kies 3 software on your PC:
http://www.samsung.com/us/kies/
3- Back up your files from the phone using Kies or copy your files, photos, etc. to your PC
4- Time to clean the phone! Use the 3-button combo (hold volume up + home buttons and press the power button) to enter recovery.
7- use volume keys to scroll down to factory reset and press power to select it. Select Yes to wipe the phone. And repeat this step one or two more times for good measure.
8- hit reboot phone, once the phone's screen goes blank (phone vibrates), pull the battery. Don't let it boot.!
9- Load up Samsung kies on your PC, select Tools tab, and reinitialize firmware, answer the on screen questions to input your serial number from the sticker inside the phone.
10- Once ready to flash the new firmware, put the battery in and boot the phone to download mode (3- button combo hold volume down+home and press power)
11- connect the USB cable to PC and make sure Kies recognizes your phone, if not uninstall and reinstall the USB driver. Reboot PC etc...
FAQ's
http://www.samsung.com/us/support/answer/ANS00043306/997388244/
Downloading the firmware will take a while depending on the connection speed. The file size is around 1.5-2GB.
Be patient and baby sit it until flashing is done.
Important: Do not break the cable connection, and prevent the computer from going to sleep or turning off during this process!
Happy flashing
Thanks everyone for trying to help me out. I'm still in the Outer Banks as of now (10:41pm EST). I won't be home until around Sunday, so if I'm not able to do this process without a computer it will have to wait until at least Sunday.
I have got a general picture on what I will have to do to resolve this problem. Hopefully when I get home I will be able to fix this situation.
Thank you Commodore for pointing out those nice tips and the guide. I noticed you mentioned I could take my phone to BestBuy, unfortunately in the Outer Banks they do not have a BestBuy as far as I can see. The only store I can find is a Walmart, so that probably will be of no use for me.
I would have gone to a public library to try and fix this issue, however this location has no library kind of dissatisfied a little, but if it did have one I would have took time out of my vacation to fix my phone.
If there is somehow a work around via the phone some how I would be willing to test it and hear it out, if the computer is my only option than so be it.
When I get home and fix this situation I will reward those who have helped and reached myself to restore access to the WiFi on my phone.
Thanks,
Ferragamo
Ferragamo said:
Thanks everyone for trying to help me out. I'm still in the Outer Banks as of now (10:41pm EST). I won't be home until around Sunday, so if I'm not able to do this process without a computer it will have to wait until at least Sunday.
I have got a general picture on what I will have to do to resolve this problem. Hopefully when I get home I will be able to fix this situation.
Thank you Commodore for pointing out those nice tips and the guide. I noticed you mentioned I could take my phone to BestBuy, unfortunately in the Outer Banks they do not have a BestBuy as far as I can see. The only store I can find is a Walmart, so that probably will be of no use for me.
I would have gone to a public library to try and fix this issue, however this location has no library kind of dissatisfied a little, but if it did have one I would have took time out of my vacation to fix my phone.
If there is somehow a work around via the phone some how I would be willing to test it and hear it out, if the computer is my only option than so be it.
When I get home and fix this situation I will reward those who have helped and reached myself to restore access to the WiFi on my phone.
Thanks,
Ferragamo
Click to expand...
Click to collapse
Do you have root? If so try flashfire, i dont have any specific instructions or anything, but it can flash most odin tars, still like i saod before i would wait, i would much rather not have wifi than not have a phone.
Sent from my Tw5ted SM-G900A using Tapatalk
how to fix

I have a wifi problem on my Galaxy S6 Edge +

Well today I was doing my root via Odin and used the auto root kernal that was provided for my phone, so I followed every step and it didn't work at all, besides the root not working I now got this problem on my wifi which you can solve via build.prop, the thing is that you need root to access this files as far as i'm concerned, there is no root for my phone else than the one I already tried, meaning I cannot fix my problem, I need help please!

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