Galaxy S4 Wifi Won't Turn On - Galaxy S 4 Q&A, Help & Troubleshooting

Galaxy S4 - i337m - Android 4.3
Okay, so here's my problem.
Today in the morning after I woke up, I checked my phone and it said it had downloaded a software update. It was just a complimentary update for 4.3, it said bug fixing, etc. in details. I clicked accept and the installation started.
After this, all crap started to happen.
The Wi-Fi NEVER worked again, everytime I clicked the Wi-Fi widget in the notification bar, it turned green and immediately switched back to gray. It also didn't work when trying to turn Wi-FI on from the settings menu.
I tried everything, the battery pulling, the thing of disabling the Wi-Fi energy save, and nothing worked. It all pointed to a factory reset.
So I did all my backups (My S4 was rooted), and finally made the factory reset.
After this finished, I did all the starting configuration of the S4 (like when it was brand-new). Then, I tried to turn on Wi-Fi.
Surprise, surprise. DIDN'T WORK.
I'm so desperate right now, I don't know what to do.
I'm currently downloading 4.4.2 to flash it via Odin, and see if this works.
Any help, please?

Flashing the 4.4.2 ROM you're downloading now should definitely fix the problem. I know that in some instances, us I9505 owners have to flash a stock ROM twice through Odin before the modem will function. It sounds like your software update broke the modem in this fashion, which is why the ROM install you're planning should fix it. Be aware however that installing KitKat will give you Knox if you don't already have it.

Strephon Alkhalikoi said:
Flashing the 4.4.2 ROM you're downloading now should definitely fix the problem. I know that in some instances, us I9505 owners have to flash a stock ROM twice through Odin before the modem will function. It sounds like your software update broke the modem in this fashion, which is why the ROM install you're planning should fix it. Be aware however that installing KitKat will give you Knox if you don't already have it.
Click to expand...
Click to collapse
Fine. Right at this moment I'm installing 4.4.2
Hope this works.
I'll tell you what happens.

Related

Wifi issue on Galaxy S4 I9505

Hi all,
Ever since updating to the latest MGA via OTA firmware nearly 2 weeks ago the Wifi has been causing me a lot of issues. The following evening after updating the firmware, the wifi just randomly turned itself off and would refuse to turn on again. When I attempted to turn it back on via the widget, it would go grey as it's attempting to turn on but then it would just stay at that and it will not turn on at all. After a few minutes it will either go back to being completely turned off or the phone would just reboot itself.
Now, I have tried several things to rectify the problem i.e. applying the MGA wifi fix, factory restoring the phone via the settings and also in Kies, downgrading back down to the MEA firmware, re-flashing the stock MGA firmware via Odin and re-flashing both the MEA & MGA modems seperately - all to no sucess!
At the same time while all this is going on, the phone itself will sometimes randomly reboot itself when attempting to turn on the wifi or even in the rare case when the wifi does turn on and it will work for 5 or so minutes - the phone will reboot itself again while trying to simultaneously update various apps through the play store.
Lastly, the phone has already been sent back to Samsung a few days ago regarding this issue and the phone was returned back to me yesterday with Samsung apparently stating that they had diagnosed and found an issue with the phone (even though they could not tell me what??) and that they had sucessfully repaired it. Upon turning the phone back on going through setting up the phone again, I come to the wifi connection and guess what... it doesn't turn on. Yep that's right, I'm still stuck with the same problem!
I got straight onto Samsung on the phone and complained about this as I'm not happy at all, and they have agreed to have the phone back in for another repair and apparently something will be done properly this time.
It's not good enough though, to me all it looks like that Samsung have done their end on the original repair is re-flash it with the MGA firmware once again, shove it back in the box back to me and hope for the best. Even the Samsung agent on the phone yesterday could not tell me exactly how they apparently repaired the phone as there was not anything on the repair report what so ever, unbelievable!
Anyway, do any of you guys have any ideas with what else I can do my end to try and rectify the problem? To me though, this sounds like a physical hardware fault that only Samsung themselves can sort out...
Thanks - Liam
AndroidLEK said:
Hi all,
Ever since updating to the latest MGA via OTA firmware nearly 2 weeks ago the Wifi has been causing me a lot of issues. The following evening after updating the firmware, the wifi just randomly turned itself off and would refuse to turn on again. When I attempted to turn it back on via the widget, it would go grey as it's attempting to turn on but then it would just stay at that and it will not turn on at all. After a few minutes it will either go back to being completely turned off or the phone would just reboot itself.
Now, I have tried several things to rectify the problem i.e. applying the MGA wifi fix, factory restoring the phone via the settings and also in Kies, downgrading back down to the MEA firmware, re-flashing the stock MGA firmware via Odin and re-flashing both the MEA & MGA modems seperately - all to no sucess!
At the same time while all this is going on, the phone itself will sometimes randomly reboot itself when attempting to turn on the wifi or even in the rare case when the wifi does turn on and it will work for 5 or so minutes - the phone will reboot itself again while trying to simultaneously update various apps through the play store.
Lastly, the phone has already been sent back to Samsung a few days ago regarding this issue and the phone was returned back to me yesterday with Samsung apparently stating that they had diagnosed and found an issue with the phone (even though they could not tell me what??) and that they had sucessfully repaired it. Upon turning the phone back on going through setting up the phone again, I come to the wifi connection and guess what... it doesn't turn on. Yep that's right, I'm still stuck with the same problem!
I got straight onto Samsung on the phone and complained about this as I'm not happy at all, and they have agreed to have the phone back in for another repair and apparently something will be done properly this time.
It's not good enough though, to me all it looks like that Samsung have done their end on the original repair is re-flash it with the MGA firmware once again, shove it back in the box back to me and hope for the best. Even the Samsung agent on the phone yesterday could not tell me exactly how they apparently repaired the phone as there was not anything on the repair report what so ever, unbelievable!
Anyway, do any of you guys have any ideas with what else I can do my end to try and rectify the problem? To me though, this sounds like a physical hardware fault that only Samsung themselves can sort out...
Thanks - Liam
Click to expand...
Click to collapse
Well I have only had this problem with rooting phones etc... to me this happened with so many ROMs I tried. Even certain stock roms. I am not sure fully how I fixed it, but I know now I am running the OMEGA rom and this seemed to have worked for me so possible to try that? Just an option
PSPNikos said:
Well I have only had this problem with rooting phones etc... to me this happened with so many ROMs I tried. Even certain stock roms. I am not sure fully how I fixed it, but I know now I am running the OMEGA rom and this seemed to have worked for me so possible to try that? Just an option
Click to expand...
Click to collapse
When I first downgraded back down to the MEA firmware that I was linked to from another forum, I discovered straight after flashing that it was a pre-rooted ROM and the wifi still would not turn on then.
The phone has been sent back to Samsung again today for another repair but last night as a last ditched attempt, I downloaded & flashed the stock XXUAMDM firmware from April and the wifi still refused to turn on.
I'm still convinced that the problem itself is hardware related rather than software based going by that the problem is still present regardless of what ROM I'm on, it's just a case of trying to get Samsung to see that. I can understand now why that Samsung the first time round probably only did a fresh re-flash of the MGA firmware instead of going ahead and taking the phone apart/replacing parts as I imagine it's very labour intensive/standard procedure and not only that - the S4's mainboard (from what I've seen the wifi module is part of the mainboard) retails at over £200 which is a hefty repair cost on their part.
Liam
It is some sort of permissions issue.
If you do chmod 777 on /dev/*, /system/etc/wifi/* it should be working.
The only thing I haven't figured out is why
And it has to be done again after rebooting the phone, wich makes me sad.....
How I fixed my WiFi and sound problems after updating to latest firmware over
Hi there. (Sorry for any mistake about my English). By the way, I'm newbie on Android.
After freaking out about my WiFi problem, i didn't even care about the others problems like the sound, and I don't know if there were or if there is still some, but WiFi and sound got fixed.
After a lot of research on Google and XDA I came to the conclusion that if I could just re-install the firmware, I had
1- I Download the same firmware you are on (i guess it safer this way) I got the same (I9505VJUEMKE) that had caused the problem when was update trough Kies.
GT-I9505_PDA_I9505VJUEMKE_4.3
Changelist: 2210919
Build date: Wed, 27 Nov 2013
CSC: I9505ZTOEMKE_ZTO_Brazil
MODEM: I9505VJUEMKE
Gdrive: (créditos ao +Alexandre Affonso - Vlw)
Two links for download this firmware. (really fast download since its on gdrive)
goo.gl / UrZWAE .
goo.gl / omJC9e  "
2- Unpack the Zip File
3- Putt the phone in "Download Mode"
4- Open Odin 3.07 and Connected the cable. (check if Odin linked a port to your phone, i didnt get any color change, just the COM Port number and the "added" mentioned on Odin)
5- Load the firmware on "PDA", wait a few seconds till Odin load it.
6- Click Start and wait the whole process. Don't disconnect the cable until Odin says that it was Successfully.
Finished!
After all I did the root with Odin + CF Auto Root + Supersu and So far everything is fine and better than before.
Hope I can help few of you guys.
Thanks.

[Q] GS4 - How to return completely stock for warranty exchange

Hi,
I've been do many flash last 24 hours on my Galaxy S4(Model SGH-I337M, Telus). Initialy, i've the factory stock rom, rooted. So, yesterday, i've decided to install Cyanogen mods nightly on my phone. Not the first time i've been used it on my phone. No problem before. So, this night, after a friend show me the release canditate release seem to be more stable, i've been try to put it on my phone. So, accidentaly wipe all the data on my phone. When i'm back home, i've put again the samsung original rom from my operator(4.2.2), found here, on the website, whit odin. All completed succefully, but i've noticed that the wifi won't turn on after the flash, and no sound from the speaker. So, i've put Cyanogen nigthlies again to test if it rom relative, but same issues here, no sound, but the wifi was working. The phone was very instable, so. Then, finaly, put the original rom again, without any rooting. Stuck on samsung logo, that i've finaly got fixed by clear the data and cache. But, no sound, and no wifi. Instable too.
Precision about phone: Unlocked whit the service mode(work), and enabled AWS whit a software and file(tutorial found here)
My question is: Anything else i can do to make my phone work fine again, and does it's possible to make the phone totaly stock? When i boot up, i've noticed that the phone, whit all rom i've try, said on samsung logo: Kernel is not sendroid enfonced, warranty status: kernel, so i can't go to return my phone on warranty whit that. How i can erase that line, and make my phone seem to be no modified?
Just to specify, it's not the first time i flash a phone. Do many flash, whit galaxy s2, s3 and s4, and sure, mine. Got try Cyanogen, stock, know how Odin work and all, try many rom, and before today, never has any problem to do turn back, but now, it's seem to be impossible.
Thank you very much for your help, very appreciated!
I would flash the stock firmware with odin again. After flashing do a factory reset in the stock recovery.
jd1639 said:
I would flash the stock firmware with odin again. After flashing do a factory reset in the stock recovery.
Click to expand...
Click to collapse
I've just try this. Flash the stock rom whit odin, and factory reset on original recovery after. Same, no wifi, no any sound.
Just see yesterday, when i'm flashing, i'm flashing on the bootloader in odin(whit the tar for the stock rom). Today, correct this by flash on the pda section, still not work. Found here on the forum the stock bootloader, rom, csc, and modem, but when i do this whit odin, odin said fail.
Thank very much, i think my phone is dead, and nothing to do to exchange it on warranty.
I think Kies has an emergency firmware recovery mode.... maybe that'll work.
Found a nice guide here: http://forum.xda-developers.com/showthread.php?t=2261153
saj222 said:
I think Kies has an emergency firmware recovery mode.... maybe that'll work.
Found a nice guide here: http://forum.xda-developers.com/showthread.php?t=2261153
Click to expand...
Click to collapse
Just try this. Kies is the worst software i've ever see. The software completely freeze random. When i go to the emergency menu, never, kies recognize my phone here. I've tried to plug my phone, no recognized. Tried without plug it, no recognized. When i plug it, kies said connection in progress, and can stay here 30 min.
I'm a idea of what is my problem. Before do install of cyanogen, i've been applied the samsung official 4.3 update, whit knox. And, according to what i read on many forum, knox is not ereasable, So, it's completely freeze my phone, and nothing to do.
Anyone have the factory telus bootloader and other factory stock items because i want to put it stock.
Thank.
Finally get problems fixed by take the TELUS stock 4.3 ROM and flash it whit Odin. After, can flash cyanogen nightlies again and the phone work well again.
Whit the stock ROM, didn't see any line on the Samsung boot logo that i've rooted. After root this appear again. Knox regardless of ROM installed said 0x1.
If anyone have a fix to put it again 0x0 very appreciated otherwise the phone work fine and thank you very much for your help.
dardares said:
Just try this. Kies is the worst software i've ever see. The software completely freeze random. When i go to the emergency menu, never, kies recognize my phone here. I've tried to plug my phone, no recognized. Tried without plug it, no recognized. When i plug it, kies said connection in progress, and can stay here 30 min.
I'm a idea of what is my problem. Before do install of cyanogen, i've been applied the samsung official 4.3 update, whit knox. And, according to what i read on many forum, knox is not ereasable, So, it's completely freeze my phone, and nothing to do.
Anyone have the factory telus bootloader and other factory stock items because i want to put it stock.
Thank.
Click to expand...
Click to collapse
I've seen worse software, it's no better or worse than iTunes.
Sent from my SGH-I337M using Tapatalk
dardares said:
Finally get problems fixed by take the TELUS stock 4.3 ROM and flash it whit Odin. After, can flash cyanogen nightlies again and the phone work well again.
Whit the stock ROM, didn't see any line on the Samsung boot logo that i've rooted. After root this appear again. Knox regardless of ROM installed said 0x1.
If anyone have a fix to put it again 0x0 very appreciated otherwise the phone work fine and thank you very much for your help.
Click to expand...
Click to collapse
can u plz give me link for the flash file u just flash
i have same problem here after i flash with 4.2.2 no sound and phone freez all time
i like to flash 4.3 so i can fix my phone
thanks
mps5566 said:
can u plz give me link for the flash file u just flash
i have same problem here after i flash with 4.2.2 no sound and phone freez all time
i like to flash 4.3 so i can fix my phone
thanks
Click to expand...
Click to collapse
This is the link i've found whit all the factory stock operator ROM. This is what rescue me.
http://forum.xda-developers.com/showthread.php?t=2269304
@Spacemonkie4207 never my itune was freeze, and i can do basic operation like transfer music or create playlist without any problem. My kies stay on connection in progress, and turn, turn, turn, but never connect. And when it connect, only one operation, and kies completely freeze, stop responding, need to close it, and open it again. Tried many cable, usb cable, reinstalling software, two other computer, but nothing to do.
I recovered back to stock from custom to 4.3 however if you do so, depending on carrier you could lose root and the ability to install custom recovery.
I would revert back to 4.2.2 (as it's knox free) go to samsungupdates (google it) and pull the 4.2.2 for your region and carrier. flash with odin 3.9
you'll lose root, but you can always perform again as long as not on 4.3 (with 4.3 u can still root if you remove all the knox stuff, u just lose warranty).
Az

WIFI won´t connect after manual update to Kitkat 4.4.2

Hello everyone, i'm a new member. I apologize if my english is not good enough.
After been driven insane by one pre-installed app from my Operator (Claro Peru) i decided that it was time to root my device to get rid from that pest. I'm a noob, so i started to investigate about the safest methods to not damage my phone. My Device's model is SGH I337m.
The plan was to update the FW from JB 4.3 that came with my phone to 4.4.2 and then proceed to root. I downloaded the Canadian 4.4.2 FW with build version I337MVLUFNC1 and installed manually with Odin. After the phone rebooted, my S4 was upgraded with 4.4.2 but Samsumg keyboard was going insane, so i went to the apps and solved that cleaning the cache/data. Then i noticed that the Wifi wasn't connected, i tried to turn it on, but then a message with a shield appeared saying that my device security stopped the operation. Beliving it was only a problem with KNOX, i installed autoroot (CF-Auto-Root-jfltecan-jfltevl-sghi337m) with Odin, open SuperSU and stopped it from working, but the Wifi still wouldn't connect.
So the first thing that crossed my mind was to unroot and do a factory reset, didn't work. The FW still was 4.4.2, so i´ve been searching solutions with this FW because i've read some cases of devices that stopped working completely after trying to do a downgrade. so i don't want to go to that route for now.
After a couple hours of search, some solutions i found on the forum were:
- Install Faux123 Kernel (Found on Youtube, this would be the thread i think http://forum.xda-developers.com/showthread.php?t=2273437http://forum.xda-developers.com/showthread.php?t=2273437
- Flash a modem for i337m
- Safestrap recovery and bypasslkm.zip
- Downgrade
I haven't tried any of this methods because i dont want to get into a deeper trouble. In the first solution i'm not sure what to do because this is the files the author recommends for canadian models (i337m), but when i enter here http://faux.romhost.me/jflteatt/jb42/http://faux.romhost.me/jflteatt/jb42/ only jflteatt appears, and that would be i337 model, isn't it? I thought that installing it may cause more troubles, so i didn't do it.
For the flashing modem method, i'm not really sure if installing a modem from another country would get me in trouble, so again i didn't proceed.
I found the Safestrap and recovery method on a downgrade thread for the i337, so again, didn't do it.
So, is there a way to get one of this methods working on i337m to get wifi working again, or is there any other better method to get back wifi.
I would really appreciate any help you can give me guys.
Copellius said:
... My Device's model is SGH I337m.
The plan was to update the FW from JB 4.3 that came with my phone to 4.4.2 and then proceed to root. I downloaded the Canadian 4.4.2 FW with build version I337MVLUFNC1 and installed manually with Odin. After the phone rebooted, my S4 was upgraded with 4.4.2 but Samsumg keyboard was going insane, so i went to the apps and solved that cleaning the cache/data. Then i noticed that the Wifi wasn't connected, i tried to turn it on, but then a message with a shield appeared saying that my device security stopped the operation. Beliving it was only a problem with KNOX, i installed autoroot (CF-Auto-Root-jfltecan-jfltevl-sghi337m) with Odin, open SuperSU and stopped it from working, but the Wifi still wouldn't connect.
So the first thing that crossed my mind was to unroot and do a factory reset, didn't work. The FW still was 4.4.2, so i´ve been searching solutions with this FW because i've read some cases of devices that stopped working completely after trying to do a downgrade. so i don't want to go to that route for now.
After a couple hours of search, some solutions i found on the forum were:
- Install Faux123 Kernel (Found on Youtube, this would be the thread i think http://forum.xda-developers.com/showthread.php?t=2273437http://forum.xda-developers.com/showthread.php?t=2273437
- Flash a modem for i337m
- Safestrap recovery and bypasslkm.zip
- Downgrade
I haven't tried any of this methods because i dont want to get into a deeper trouble. In the first solution i'm not sure what to do because this is the files the author recommends for canadian models (i337m), but when i enter here http://faux.romhost.me/jflteatt/jb42/http://faux.romhost.me/jflteatt/jb42/ only jflteatt appears, and that would be i337 model, isn't it? I thought that installing it may cause more troubles, so i didn't do it.
For the flashing modem method, i'm not really sure if installing a modem from another country would get me in trouble, so again i didn't proceed.
I found the Safestrap and recovery method on a downgrade thread for the i337, so again, didn't do it.
So, is there a way to get one of this methods working on i337m to get wifi working again, or is there any other better method to get back wifi.
I would really appreciate any help you can give me guys.
Click to expand...
Click to collapse
ok so you have the i337m canadian version... making anything related to safestrap and the att i337 irrelevant, completely different methods so don't get them confused lol
you were updating from stock 4.3 right? your best bet is to factiry reset and reflash stock fw for 4.4.2 before you brick your device... kitkat is very different from 4.3, maybe read up on it a bit too...
for ex, the "message with a shield appeared saying that my device security stopped the operation" isn't related to needing to root, it's an option under security settings.
to enable superuser on kitkat you need to enable developer options, then enable superuser. I prefer supersu so manually install that from play store afterwards. I recommend checking and/or enabling this as soon as the phone completes booting up after flashing.
also I think there's a known issue w/ 4.4.2 and wifi not turning on until after 2nd boot completed if I rememebr correctly, been using 4.4.4 for awhile now though so could be wrong...
good luck and check out the help section :angel:

[Q] I seem to have killed my WiFi - any suggestions would be appreciated

Hi there. Very sorry to post about this - I've tried my best to solve the issue on my own and doing various searches, here and elsewhere, but to no avail. Long and short of it is that WiFi and Bluetooth both seem to have died on me.
I have a Canadian Bell Samsung Galaxy S4 (SGH-I337M). I have been installing Danvdh's Google Edition ROM for some time now, and so far, it's been great. After installing 4.4.4 (clean, after a full wipe), it seemed to work, but my phone froze up - completely unresponsive, including the power switch. Pulled the battery but then afterwards could not turn on WiFi or BT - just says "Turning Wifi On" but nothing ever happens - the message just stays there perpetually. Bluetooth same thing, except the message goes away after a few seconds.
I've tried all of the following to try to restore WiFi, none of which has worked:
- Odin reflash of modem.bin and NON-HLOS.bin, multiple times (from the most recent stock ROM for my device - I337MVLUFNE1, 4.4.2)
- Complete reversion to stock (I337MVLUFNE1, 4.4.2) using Odin - neither WiFi nor BT worked under stock either
- Factory reset while in stock
- After rooting stock, using an SQL editor to check the value of wifi_display_on - it was 0 but just to make sure I set it to 0 again
- After rooting stock, deleting wpa_supplicant.conf in both /data/misc/wifi/ and /etc/wifi/
- Reinstalling Danvdh 4.4.4 (clean), but this time with the Googy kernel rather than the KT kernel (in both cases it was the customized version, not the pure Nexus one)
- Also tried, just for the heck of it, switching to ART to see if that might make a difference - it didn't
- Ringing a bell, opening a book and lighting a candle
In other words, I am at my wits' end. If anyone might have any suggestions - even just a link to some other possible solution I would be most grateful. I have tried searching, both in XDA and elsewhere, for a possible solution and have tried everything I've found, but so far, nothing has worked. Any suggestions would be most appreciated.
Please note - I originally posted this in the thread for Danvdh's ROM. I didn't get any feedback there, so suspect I perhaps might be posting the question in the wrong place, so am trying here, in addition to the thread for Canadian S4s. I trust such cross-posting is OK (but if not please let me know).
not_su said:
Hi there. .....
- Ringing a bell, opening a book and lighting a candle
In other words, I am at my wits' end. If anyone might have any suggestions - even just a link to some other possible solution I would be most grateful. I have tried searching, both in XDA and elsewhere, for a possible solution and have tried everything I've found, but so far, nothing has worked. Any suggestions would be most appreciated.
Click to expand...
Click to collapse
To be honest, I have no idea if that could be related... on one of my I9300, directly after OTA, I lost the WiFi and BT. Problem was WiFi or/and BT, when I pressed to switch it on, was turning on, for maybe 0.5 sec, and then was turning itself off.
now the funny story: because I unrooted it and cleaned prior to OTA, it was immaculate, so I took it to Sammys hiTech local specialists.
They two times were returning phone to me, stating that they are unable to repeat the problem. So, I asked them to not send it back, and that I'll pick it from Service Centre. I used that opportunity, and asked another local master to show me how to use the WiFi on my 100% working phone. He itself packed it into same envelope and disappeard for half a time, after that itme I was informed that my phone will be sent to me after motherboard replacement.
now, the correlation: no (in theory) action which could affect hardware, obviously CAUSED damage. If I'd be you, I'd try to restore the clean condition, and I'd go to service centre.
spamtrash said:
now, the correlation: no (in theory) action which could affect hardware, obviously CAUSED damage. If I'd be you, I'd try to restore the clean condition, and I'd go to service centre.
Click to expand...
Click to collapse
Thanks very much - appreciate the suggestion, but the warranty on my phone ended last month, so I'd get hit for a bill for the repair.
You raise a good point - it may well be a simple hardware failure that happened, coincidentally, when I updated. Alas, I wouldn't know where to begin to try to figure out whether or not it is a hardware failure...
I have the same problem with WiFi (bluetooth works though) after upgrading to 4.4.2 today.
The only modification I had done before were CF-AutoRoot and TWR.
I unrooted from SuperSU's menu prior to upgrading to stock 4.4.2 with KIES, everything seemed to work, except now I can't turn on wifi.
Where can I get the modem.bin for a Canadian Bell Samsung Galaxy S4 (SGH-I337M)?
Thanks for any help!
Here's the about screen: (Shouldn't the Baseband version be the same as the build? What gives?)
Tsuushin said:
Where can I get the modem.bin for a Canadian Bell Samsung Galaxy S4 (SGH-I337M)?
Thanks for any help!
Click to expand...
Click to collapse
here....
Tsuushin said:
I have the same problem with WiFi (bluetooth works though) after upgrading to 4.4.2 today.
The only modification I had done before were CF-AutoRoot and TWR.
I unrooted from SuperSU's menu prior to upgrading to stock 4.4.2 with KIES, everything seemed to work, except now I can't turn on wifi.
Where can I get the modem.bin for a Canadian Bell Samsung Galaxy S4 (SGH-I337M)?
Thanks for any help!
Here's the about screen: (Shouldn't the Baseband version be the same as the build? What gives?)
Click to expand...
Click to collapse
I don't remember where I got mine but it was extracted from the latest stock rom. Googling the build led me to this page, which seems to have links to download the most recent stock for the S4.
Not sure about your other question. I know when I update a new custom rom, the baseband version doesn't change - that only changes when I update the modem or flash an updated stock rom using Odin. You might also want to try flashing the NON-HLOS.bin file - I read elsewhere that that has helped others. Of course, feel free to also try all the other options I've noted above.
In case it helps other people with the same problem, here's what I did that fixed the WiFi issue:
I flashed the latest modem.bin (twice) and NON-HLOS.bin, but it didn't fix the WiFi.
I flashed the latest stock ROM, and now WiFi works.
Cheers.

[Q] Lost wi-fi when going to 4.4.4 from rooted 4.42- can't get it back

I rooted to 4.4.2 and it went fine- then I realized I had lost wi-fi.
I have tried to restore and tried using odin and zip files to install a stock rom after I found a similar problem with link on
Sprint forums saying it will fix the ""button won't stay on" but the fix only works if the device is in stock rom.
answer on Sprint forum says baseband version was mk2 needs to be nae.
Return the phone to stock, run the fix for the wi-fi and then re-root.
I have downloaded and ran several roms that say they are stock- I've factory reset, cleared cache, no matter what I do,
I end up with a rooted device in 4.4.2 and no wi-fi. If I could just get the wi-fi back I would take it at this point
This was just a little quick upgrade that turned bad and long
The Sprint forum had a link to get it to nae, but wont work if rooted., so need to put the phone back to stock- run the patch and then can upgrade to kit kat again
TLDR: I cannot get my Sprint s4 back to any version that isn't rooted. I have tried several (lots) of roms that say" stock-unrooted" rom,
Never goes back to stock- stays rooted without wifi-
Ran a rom VPUAMDC_L720SPTAMDC_SPR but when I install I get msge "ifooter is wring signature invalid" - and it fails.
reformatted the sd card, tried different roms and get some message and it stays rooted and no wifi.
TLDR: need to get stock rom so I can get back wi-fi and then root the whole thing. as 4.4.2 Or 4 , if it exists)
Any options and any ideas as to where or what to do?
EDIT: for clarity cause I am not making much sense at this point
Thanks
Heh... a TL;DR for a TL;DR... the internet is becoming one crazy place.
thousandwatts said:
The Sprint forum had a link to get it to nae, but wont work if rooted.
Click to expand...
Click to collapse
Maybe a dumb question, but why not just unroot first, then?

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