Lost Wifi - Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot

So I got updated to 4.3 I was already rooted on Sacs 4.3, don't ask how.
Anyhoo, my wifi is no lo longer enabled when I try to switch the Wifi switch to on it switched back to off? Help me XDA Crew?

thatenglishguy said:
So I got updated to 4.3 I was already rooted on Sacs 4.3, don't ask how.
Anyhoo, my wifi is no lo longer enabled when I try to switch the Wifi switch to on it switched back to off? Help me XDA Crew?
Click to expand...
Click to collapse
to get wifi working on 4.3 you have to get the new mja firmware. you can get it here
http://forum.xda-developers.com/showthread.php?t=2338919

Related

[q] flashed to stock - no data connection

i was on GOLDENEYE ROM for a couple of days in vegas came back and wanted to flash back to stock because of some small issues.
did a flash back to MDL and it flashed fine data worked and everything yesterday i found it weird that none of my user files were deleted as if it flashed over the custom rom. had to re root did that easily.
last night i got home and decided i wanted to flash all the way back to stock, did that and next thing i know, no connection to apn at all.
no web cant text, nothing.
im on MDL now i have tried flashing to MDB and MDL (AT&T btw) no data on any of these roms. any help please ?
i have no idea what to do
i thought about removing the triangle and going to at&t and requesting a new phone would that work if nothing else?
help pleaaaaaase
thank you !
Did you check your apn? Sounds like that's your problem.
jd1639 said:
Did you check your apn? Sounds like that's your problem.
Click to expand...
Click to collapse
yes i did! i tried adding new ones too.
could you provide the stock att lte apn settings for me? ive already tried a few but im willing to try any you provide to me as well. please !
EDIT: SORRY MEANT TO MENTION I WAS ON GOLDENEYE ROM BEFORE FLASHING BACK TO STOCK MDL

[Q] MJA modem + 802.1x EAP WiFi?

Has anyone that has upgraded to the MJA modem successfully connected to a WPA2 Enterprise (802.1x EAP) wireless network? I've read tons of posts with people having issues, even after applying the wifi fix and running KT kernel. I need my phone to be able to connect to this type of WiFi network, so I would like to know if it's possible with the new modem. If so, what process did you follow?
I still haven't taken the OTA, and am running stock rooted 4.2.2. I'm inclined to follow the process in the development section to get to MJA without KNOX, but I don't want to bother if I can't connect to an enterprise WiFi network.
Thanks,
Dave
I am on mja minus bootloader . but running sacs 4.2 ROM. I am connected to my work WiFi as I type. No problems. But if i install any 4.3 ROM forget it no WiFi works at work. Is It the rom? Is it lack of 4.3 boot loader? Who knows. But mja minus boot loader will give you no problem. Better speed etc
Sent from my SPH-L720 using xda app-developers app
I am having same issue with you. Any 4.3 ROM I tried based from MJA failed to work with EAP Wifi. No issue with CM or AOSP.
I am having issues with wifi as well at campus it will connect but never obtain ip address, at home it works but is slow and I get unstable connection errors a lot :-\
Running sac 4.1 mja
Sent from my SPH-L720 using XDA Premium 4 mobile app
Thanks for the replies. I can't believe there is not a fix for this! Is anyone aware of any combination of 4.3 ROM + MJA modem that works with enterprise wifi? Do people that took the OTA have the same issue?
I really want to update, but I can't deal with not being able to connect to an 802.1x wireless network.
im running mf9(sac 4.3 v 4.2) and my sister is running mja stock. and we both get unstable connection at home wifi
I have to sometimes turn off and turn back on wifi after a reboot to clear it up. she just waits and it clears up itself
hope this helps
Try this...
http://stackoverflow.com/questions/9216015/connect-android-to-wifi-enterprise-network-eappeap
Edit did not work for me
Sent from my SPH-L720 using xda app-developers app
Any update? Any developer want to assist us at work get online? I've tried every custom 4.3 tw without success. I've tried all kernels available without success. I restore back to any 4.2 and I connect perfectly.
I'm on mk2 with mf9 boatloader for all examples above. There is something missing in 4.3 allowing the device to properly connect to enterprise Wi-Fi (my situation is peap with mschampv2). I see it authenticates me on the network just falls to properly connect then it resets.
Sent from my SPH-L720 using Tapatalk
When I was on rooted MJA Rom and modem, MF9 bootloader, KT's kernel, and hotspot mod with Wifi fix, I could not connect to my University's 802.1x EAP Wifi.
I recently upgraded to MK2 rooted and deknoxed rom, MK2 modem, MK2 kernel, while still being on the MF9 bootloader.
I can now connect to the 802.1x EAP Wifi just fine. I have not flashed the hotspot mod incase that broke the ability to connect (I rarely ever use the hotspot anyway, maybe ~3 times a year). I may flash it and see what happens.
I would suggest going close to stock everything (minus bootloader) with the stock kernel and modem to see if that solves the problem.

Successful MMS and 4G LTE with Cyanogenmod on Sprint S4?

Has anyone with a Sprint Galaxy S4 found a stable combo of any Cyanogenmod build and modem that allows for: 1. Consistently successful MMS sending and receiving AND 2. Stable 4G LTE that hands off well between it and both 3G and WiFi?
In the alternative, any specific tweaks to APN settings to allow for items 1 and 2 above?
If you have found such a successful combination, please post here, and please be as detailed as possible (CM build, baseband version, specific APN settings, etc) , thanks!!!
Cheers,
VegasRooted
I hear you on this. I've had to disable LTE in order to get the phone to work properly, since the Phone would become non-operational after LTE signal would drop out.
Sent from my SPH-L720 using Tapatalk
I was on CM11 12/22 and Beanstalk 4.3 and used this..
http://buzzmobile.us/sprint-apn-settings-android-us/
Now I'm on ProBam and all seems to work well. My MMS on WiFi is sporadic at best but on MMs and LTE/3G I'm ok.
Hope it works for you.
Sent from my SPH-L720 using XDA Premium 4 mobile app
All works for me on latest cm11 nightly I'm on mk2 modem. I have no problem with lte, 3g,mms or sms
sent from Isaac's GS4
isaac2k10 said:
All works for me on latest cm11 nightly I'm on mk2 modem. I have no problem with lte, 3g,mms or sms
sent from Isaac's GS4
Click to expand...
Click to collapse
Did you make any changes to your APN settings? Thanks!
isaac2k10 said:
All works for me on latest cm11 nightly I'm on mk2 modem. I have no problem with lte, 3g,mms or sms
sent from Isaac's GS4
Click to expand...
Click to collapse
So how well does your LTE hand-off to 3g? I have to go into airplane mode in order to get 3g working after leaving LTE, (even though the phone claims to be connected to 3g after dropping off of LTE)
Sent from my SPH-L720 using Tapatalk
random45 said:
So how well does your LTE hand-off to 3g? I have to go into airplane mode in order to get 3g working after leaving LTE, (even though the phone claims to be connected to 3g after dropping off of LTE)
Sent from my SPH-L720 using Tapatalk
Click to expand...
Click to collapse
switches fine for me. Never had to use airplane mode
VegasRooted said:
Did you make any changes to your APN settings? Thanks!
Click to expand...
Click to collapse
No changes, whatever was in there while on The is what is in there now
sent from Isaac's GS4
Thank You
isaac2k10 said:
switches fine for me. Never had to use airplane mode
No changes, whatever was in there while on The is what is in there now
sent from Isaac's GS4
Click to expand...
Click to collapse
Thank you very much, I'll try the latest nightlies of CM11. They must be working better than CM10 as far as MMS & LTE is concerned. One last question: which type (and version) of recovery did you use for your CM11 flash? (TWRP, CWM, etc.) Thanks again!
Cheers,
VegasRooted
VegasRooted said:
Thank you very much, I'll try the latest nightlies of CM11. They must be working better than CM10 as far as MMS & LTE is concerned. One last question: which type (and version) of recovery did you use for your CM11 flash? (TWRP, CWM, etc.) Thanks again!
Cheers,
VegasRooted
Click to expand...
Click to collapse
I'm using Philz recovery which is cwm based
sent from Isaac's GS4
Thanks
isaac2k10 said:
I'm using Philz recovery which is cwm based
sent from Isaac's GS4
Click to expand...
Click to collapse
Excellent, thanks again.
VegasRooted
I'm on the latest CM11 nightly (1/10/14). 4G works fine for me, but mms is very spotty. It works right after I boot my phone, then it stops working. I don't know why it happens, but I receieve MMS messages right when the phone boots, then it stops working. My modem is MF9. I'm not sure what exactly is causing this problem. Would flashing a new modem help? If so, how would I do it?
Update
Yes, I would recommend that you try flashing the MK2 modem.
All is working well for me now: MMS sending & receiving, good hand-off between 1X, 3G, 4G LTE, and WIFI, etc.
I'm now running the latest CM 11 nightly (1/13/14) with the stock MK2 modem, and I'm using CWM 6.0.4.4 as my recovery.
FYI:
Just for kicks, I went back to the last (stable) version of CM 10 to see if MMS played any better with the MK2 modem (since I would still prefer to stay on CM 10; I just like JB 4.3 better), but unfortunately I encountered the exact same results that had caused me to start this thread in the first place: bad MMS functionality, bad hand-off between 3G, 4G & WIFI. So... I guess on 4.4 (CM 11) I shall remain....
Thanks again to everyone for their contribution(s) to this thread, you all have been very helpful!
Cheers,
VegasRooted
MK2 Modem
gundam802 said:
I'm on the latest CM11 nightly (1/10/14). 4G works fine for me, but mms is very spotty. It works right after I boot my phone, then it stops working. I don't know why it happens, but I receieve MMS messages right when the phone boots, then it stops working. My modem is MF9. I'm not sure what exactly is causing this problem. Would flashing a new modem help? If so, how would I do it?
Click to expand...
Click to collapse
You can get the MK2 Modem from here: https://www.androidfilehost.com/?fid=23252070760974263
The proper MD5 sum for it is: 39b0b32a8ee338543fdaa91ab2774f79
This is a flashable TAR, so you can just use Odin to flash it from download mode.
Cheers!
VegasRooted
VegasRooted said:
You can get the MK2 Modem from here: https://www.androidfilehost.com/?fid=23252070760974263
The proper MD5 sum for it is: 39b0b32a8ee338543fdaa91ab2774f79
This is a flashable TAR, so you can just use Odin to flash it from download mode.
Cheers!
VegasRooted
Click to expand...
Click to collapse
Thanks for help I flashed the new modem and it didn't do anything. I started apps from startup and discovered that AdBlock Plus blocks mms because it monitors port 80, the same port MMS is sent on. I fixed my problem by uninstalling ABP and I use AdAway as a replacement.
sorry for asking this guys but does the CM11 lets you SIM UNLOCK the phone as well im asking this because thats what im focus on many thanks
im just new in this new era world....god bless y'all

Wifi broken after modem update

I know this question is floating around the threads in developement and Q & A but i couldn't find a solid answer, I apologize in advance for creating a new thread.
So earlier today i followed these instructions ( http://forum.xda-developers.com/showthread.php?t=2338919 ) to update my modem to MK2 , Before that i was on the build that was right before MF9, I was, and currently am, running stock rooted touchwiz that came with the phone when I got it. Since i got it until today the only thing i've done to my SGS4 is root it.
and now after trying to update my modem my WiFi is broken. I try to turn it on but it never turns on, my data works fine, and other than a slow boot process everything else works fine. Can anybody please tell me how to fix my WiFi????
Thanks in advance.
Did you happen to update to a 4.3 rom when you did the modem upgrade?
Sent from my SPH-L720 using xda app-developers app
Dqm56 said:
I know this question is floating around the threads in developement and Q & A but i couldn't find a solid answer, I apologize in advance for creating a new thread.
So earlier today i followed these instructions ( http://forum.xda-developers.com/showthread.php?t=2338919 ) to update my modem to MK2 , Before that i was on the build that was right before MF9, I was, and currently am, running stock rooted touchwiz that came with the phone when I got it. Since i got it until today the only thing i've done to my SGS4 is root it.
and now after trying to update my modem my WiFi is broken. I try to turn it on but it never turns on, my data works fine, and other than a slow boot process everything else works fine. Can anybody please tell me how to fix my WiFi????
Thanks in advance.
Click to expand...
Click to collapse
Hope this helps, I have S4 from Sprint rooted with stock everything else. After taking the MK2 update my wifi wouldnt turn on so the link below worked for me on the first try but you must follow direction carefully. Good luck
http://forums.androidcentral.com/sp...42205-mk2-ota-update-today-killed-wifi-2.html

S4 Wifi Trouble

I got my wife a S4 I337 today to finally get her away from her dinosaur s3 just to discover issues...The phone works fine but the WIFI and BLUETOOTH will not turn on.
I have tried the following as many have mentioned but to no prevail...
1. Remove battery trick while on or off
2. Hard reset about 7 times and still no change
3. Down loaded WIFI manager but still wont turn on...
Here is the Version and info it currently has PLEASE HELP!!
JDMJAY said:
I got my wife a S4 I337 today to finally get her away from her dinosaur s3 just to discover issues...The phone works fine but the WIFI and BLUETOOTH will not turn on.
I have tried the following as many have mentioned but to no prevail...
1. Remove battery trick while on or off
2. Hard reset about 7 times and still no change
3. Down loaded WIFI manager but still wont turn on...
Here is the Version and info it currently has PLEASE HELP!!
Click to expand...
Click to collapse
Reflash the NB1 tar file in ODIN and see if it works then. You can find it in the general section, either search for the thread or find it in the [INDEX] thread.
Sent from my SGH-I337 using XDA Free mobile app
Search for wifi fix or non hlos for ur model. It worked for some
Sent from my GT-I9500 using XDA Free mobile app
DeadlySin9 said:
Reflash the NB1 tar file in ODIN and see if it works then. You can find it in the general section, either search for the thread or find it in the [INDEX] thread.
Sent from my SGH-I337 using XDA Free mobile app
Click to expand...
Click to collapse
started working for 5 hours then returned same issue...
I used Odin to root it using Nc1 Then finished with J4 ...
im guessing this must be a problem many are facing. a friend of mine gave me a an S4 logic board i337m variant and it has the same issue i have tried everything from flashing new roms flashing stock frimwares tried different kernels modems nothing seems to work. i second this post to see if we can find a solution. my phone is a I337m and have flashed GOLDENEYE to get the lollipop experience a month before the official Lollipop came out for the canadien variants and i have not had any problems i was wondering if i made a backup with trwp and see if this might fix this problems and if it does i can upload my exact backup to help other. but i was wondering if a dev can help me out and see if this could be a possible solution.
In the same boat aswell
I gave my phone to someone to update it to lollipop GPE about 2 months ago.... wifi would work but my data connection would cut out the minute the screen shut off.... after contemplating going back to the guy.... i downgraded to hyperdrive kitkat rom witch gave me better connectivity but no wifi... I ve been living with that for up until now until I decided enough is enough and flashed the stock lollipop rom yesterday. still no wifi. whats even more frustrating is I cant find the file path thats being mentioned so commonly as the solution.... and yes I am rooted. Also wifi was working no problem before I updated..
jimi hendricks said:
I gave my phone to someone to update it to lollipop GPE about 2 months ago.... wifi would work but my data connection would cut out the minute the screen shut off.... after contemplating going back to the guy.... i downgraded to hyperdrive kitkat rom witch gave me better connectivity but no wifi... I ve been living with that for up until now until I decided enough is enough and flashed the stock lollipop rom yesterday. still no wifi. whats even more frustrating is I cant find the file path thats being mentioned so commonly as the solution.... and yes I am rooted. Also wifi was working no problem before I updated..
Click to expand...
Click to collapse
Well last night I went from 4.4.4 back to 4.4.2 to see if thus would solve the wifi and blue tooth head ache. It all started working just fine and did all the way up till tonight then back to not working. I then resulted to cleaning the Wifi prongs on the phone and it worked again for few hours. Now the weird thing happens I put it back into the phone case and just from snapping it in it stop working AGAIN. I restarted the phone once taken out of the case and it was working so I think I'm at a conclusion it's a mechanical issue not software. Maybe the wifi circuit us faulty
I've had lots if Galaxy and worked on a few friends but this wifi and blue tooth crap us unbearable.
My Bluetooth is fine. My wifi broke after downgrading to kit kat so I know it works It just seems the wifi files are corrupted or missing. I'm sure it's simple I'm just not savvy enough to implement it

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