Database Users

[Q] WiFi not toggling on

Hi guys,
Sorry for the incoming wall of text but this issue im having is massive and after doing a buttload of research im still no closer to anything.
I have the international Galaxy S4 (GT-I9505). So everything started when my phone was running CM 10.2 then i did an OTA update to I believe it was 10.3. My phone would boot and the OS would start but I kept getting an error message saying some android system program wasnt working and basically made it unusable. So i decided to go back to CM10.2. After much trouble, I finally managed to get back to CM10.2 but I decided i was sick and tired with CM and wanted to go back to Samsung Stock firmware. This is where all the trouble began and its been a nightmare so far. I had TWRP 2.6.0.0 flashed too. I downloaded the TGY-I9505ZHUEMK2-20131122112513.zip file from samsung-updates and moved it onto my phone and wanted to install the .zip from TWRP. I kept getting an error message so I installed it through ODIN instead. Ok, so it worked from there and all was fine and dandy until I couldnt get the wifi to turn on, as in, it wouldnt even toggle on not that it wasnt connecting but that it physically wouldnt turn on. I figured I should do an OTA update incase it was a software problem. Alas, I got the error message saying that I cant because my phone was modified. Once again, I reinstalled the firmware through ODIN 1.85 and this time I didnt root it but i still got the same error message. I then used Triangle Away to try to reset the flash counter incase that would help. No matter how many times i did, the counter would always stay at 7. So after hours of research I stumbled upon an article about the infamous KNOX flag implemented in 4.3 and decided to see if I had triggered it. So I checked under download mode but I couldnt see anything relating to it but I did see 0x30. I forget what it was for. In the end I found this thread ( http://forum.xda-developers.com/showthread.php?t=2444671 ) and downloaded the PIT file and the pre rooted firmware linked in that thread and installed them and all went smoothly. The WiFi still wont turn on but triangle away was able to reset the flash counter to 0 this time. Now when I attempt to turn on the WiFi i get a notification saying 'The device has detected an application attempting unpermitted actions and has stopped loading. To protect your device, it is recommended you reboot'. I tried rebooting but that didnt help. I tried removing the battery and putting it back but that didnt work either. I tried holding down on the notification and clearing cache and then closing the app but that didnt help. The application in question is called : SEandroid (version 1.0). When I scroll to the bottom of the permissions list I did see something interesting that could have something to do with this. One of the permissions was labeled Qualcomm WiFi p2p.
The SSN is -I9505GSMH
Model Number: GT-I9505
Android vers: 4.2.2
Baseband Version: I9505ZHUBMF4
Kernel Version: 3.4.0-626292
[email protected]#1
Tue May 14 19:17:56 KST2013
Build no.: JDQ39.I9505ZHUAME3
SELinux Status: Permissive
Device Status shows Custom.
Please guys, any help would be appreciated. I'm about to throw this dang phone into the ninth circle of hell.
EDIT:
Wwll guys, Im feeling like a special ed guy now. I found out about the WIFI fix and after flashing that with ODIN, it worked all dandy now. My second question would be, if I were to put TWRP back on, would that screw with anyhting?

hkhouli said:
Hi guys,
Sorry for the incoming wall of text but this issue im having is massive and after doing a buttload of research im still no closer to anything.
I have the international Galaxy S4 (GT-I9505). So everything started when my phone was running CM 10.2 then i did an OTA update to I believe it was 10.3. My phone would boot and the OS would start but I kept getting an error message saying some android system program wasnt working and basically made it unusable. So i decided to go back to CM10.2. After much trouble, I finally managed to get back to CM10.2 but I decided i was sick and tired with CM and wanted to go back to Samsung Stock firmware. This is where all the trouble began and its been a nightmare so far. I had TWRP 2.6.0.0 flashed too. I downloaded the TGY-I9505ZHUEMK2-20131122112513.zip file from samsung-updates and moved it onto my phone and wanted to install the .zip from TWRP. I kept getting an error message so I installed it through ODIN instead. Ok, so it worked from there and all was fine and dandy until I couldnt get the wifi to turn on, as in, it wouldnt even toggle on not that it wasnt connecting but that it physically wouldnt turn on. I figured I should do an OTA update incase it was a software problem. Alas, I got the error message saying that I cant because my phone was modified. Once again, I reinstalled the firmware through ODIN 1.85 and this time I didnt root it but i still got the same error message. I then used Triangle Away to try to reset the flash counter incase that would help. No matter how many times i did, the counter would always stay at 7. So after hours of research I stumbled upon an article about the infamous KNOX flag implemented in 4.3 and decided to see if I had triggered it. So I checked under download mode but I couldnt see anything relating to it but I did see 0x30. I forget what it was for. In the end I found this thread ( http://forum.xda-developers.com/showthread.php?t=2444671 ) and downloaded the PIT file and the pre rooted firmware linked in that thread and installed them and all went smoothly. The WiFi still wont turn on but triangle away was able to reset the flash counter to 0 this time. Now when I attempt to turn on the WiFi i get a notification saying 'The device has detected an application attempting unpermitted actions and has stopped loading. To protect your device, it is recommended you reboot'. I tried rebooting but that didnt help. I tried removing the battery and putting it back but that didnt work either. I tried holding down on the notification and clearing cache and then closing the app but that didnt help. The application in question is called : SEandroid (version 1.0). When I scroll to the bottom of the permissions list I did see something interesting that could have something to do with this. One of the permissions was labeled Qualcomm WiFi p2p.
The SSN is -I9505GSMH
Model Number: GT-I9505
Android vers: 4.2.2
Baseband Version: I9505ZHUBMF4
Kernel Version: 3.4.0-626292
[email protected]#1
Tue May 14 19:17:56 KST2013
Build no.: JDQ39.I9505ZHUAME3
SELinux Status: Permissive
Device Status shows Custom.
Please guys, any help would be appreciated. I'm about to throw this dang phone into the ninth circle of hell.
EDIT:
Wwll guys, Im feeling like a special ed guy now. I found out about the WIFI fix and after flashing that with ODIN, it worked all dandy now. My second question would be, if I were to put TWRP back on, would that screw with anyhting?
Click to expand...
Click to collapse
Im having the same problem as you but wifi fix doesn't seem to do anything.
after i run it i get a permission error.
can you give me a bit more details on which wifi fix you used and how you ran it.

xgutterratx said:
Im having the same problem as you but wifi fix doesn't seem to do anything.
after i run it i get a permission error.
can you give me a bit more details on which wifi fix you used and how you ran it.
Click to expand...
Click to collapse
Yes please send me the wifi fix too! having same issue and I'm at a loss. Thanks!

[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.

Galaxy S4 Wifi Won't Turn On

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.

[Q] Phone wouldn't connect to WiFi with Stock Rom & won't play any SOUND OR MEDIA

I've spent a lot of time now trying to fix my phone and i'm really quite worried.
It's a Samsung Galaxy S4 SGH-I337M (CSC I337MOYAAAMDJ, Baseband I337MVLUAMDJ, version 4.2.2).
I have had CM 10 on it running perfectly fine for about a year. I decided to update it though and didn't know that you could update CM right from the phone , so I downloaded the software from their site onto my phone and onto my PC. Followed the instructions installation froze and didn't move forward for over a day .... so I gave up.
I went looking for and downloaded the phone's stock firmware for both my carrier (Virgin Mobile, Canada) and for Bell's, so I installed TWRP with Odin 3.07 without issue. When I install the stock firmware my WiFi will not turn on.
So i've tried installing several rom's putting them on the SD card and using TWRP on my phone and i've found out that if I use Goldeneye and tell it my phone is an I9505, or hyperdrive (I9505) or at the moment Google Play Edition (JFLTE 5.01, kernel = Googy-Max3) that the WiFI DOES TURN ON as soon as the rom is loaded !!! So I thought I was good, but no
When flashed with either it's stock I337M firmware or these custom I9505 rom's my phone will play no audio. Chrome just crashes if I go to play any music or video. If someone call's, the ringer doesn't work but after several 'rings' my phone start's to vibrate indicating they called (aka the dialer lags out and then crashes). I can make calls too but when I talk the recipient can't hear me, nor I them.
It downloaded and re-installed all the app's of my google backup totally fine and using wi-fi. It play's games fine (but with no sound), i can txt fine, etc. It notices and connects to the network (Virgin Mobile) fine (I turned off wifi and tried downloaded stuff, txts go back and forth, and my phone labels Virgin)
I'm on a stupid 2 year contract and this phone cost $650 at the time I got it. It's knox 0x1 so no warranty to have it repaired. Does ANYONE have ANY idea what might be causing my phone not to play any sound's? I've tried pretty much everything I can think of.
I'd be willing to live with a totally cripples phone ... but it's got to at least work for receiving or sending phone calls and this sound issue crashes the dialer and even if I manage to pickup when it's vibrating before the other person has hung up there's no sound, neither of us can hear each other .
Does ANYONE have ANY idea what could be doing this or how to fix it? I'm so depressed and worried right now that I just a phone I spent a lot of money and am on a stupid contract on :/. I fixed the wifi problem by flashing with a rom that 'makes it' a GT-I9505G, baseband I337MUMUAMDL (v 5.0.1) (vs SGH-I337M, baseband I337MVLUAMDJ (v 4.2.2)), but the same sound and audio/media problem exist's no matter what firmware or version the phone ends up being .
I should have just left it with CM as it was but *sigh* here I am, please help.

masterof1010 said:
I've spent a lot of time now trying to fix my phone and i'm really quite worried.
It's a Samsung Galaxy S4 SGH-I337M (CSC I337MOYAAAMDJ, Baseband I337MVLUAMDJ, version 4.2.2).
I have had CM 10 on it running perfectly fine for about a year. I decided to update it though and didn't know that you could update CM right from the phone , so I downloaded the software from their site onto my phone and onto my PC. Followed the instructions installation froze and didn't move forward for over a day .... so I gave up.
I went looking for and downloaded the phone's stock firmware for both my carrier (Virgin Mobile, Canada) and for Bell's, so I installed TWRP with Odin 3.07 without issue. When I install the stock firmware my WiFi will not turn on.
So i've tried installing several rom's putting them on the SD card and using TWRP on my phone and i've found out that if I use Goldeneye and tell it my phone is an I9505, or hyperdrive (I9505) or at the moment Google Play Edition (JFLTE 5.01, kernel = Googy-Max3) that the WiFI DOES TURN ON as soon as the rom is loaded !!! So I thought I was good, but no
When flashed with either it's stock I337M firmware or these custom I9505 rom's my phone will play no audio. Chrome just crashes if I go to play any music or video. If someone call's, the ringer doesn't work but after several 'rings' my phone start's to vibrate indicating they called (aka the dialer lags out and then crashes). I can make calls too but when I talk the recipient can't hear me, nor I them.
It downloaded and re-installed all the app's of my google backup totally fine and using wi-fi. It play's games fine (but with no sound), i can txt fine, etc. It notices and connects to the network (Virgin Mobile) fine (I turned off wifi and tried downloaded stuff, txts go back and forth, and my phone labels Virgin)
I'm on a stupid 2 year contract and this phone cost $650 at the time I got it. It's knox 0x1 so no warranty to have it repaired. Does ANYONE have ANY idea what might be causing my phone not to play any sound's? I've tried pretty much everything I can think of.
I'd be willing to live with a totally cripples phone ... but it's got to at least work for receiving or sending phone calls and this sound issue crashes the dialer and even if I manage to pickup when it's vibrating before the other person has hung up there's no sound, neither of us can hear each other .
Does ANYONE have ANY idea what could be doing this or how to fix it? I'm so depressed and worried right now that I just a phone I spent a lot of money and am on a stupid contract on :/. I fixed the wifi problem by flashing with a rom that 'makes it' a GT-I9505G, baseband I337MUMUAMDL (v 5.0.1) (vs SGH-I337M, baseband I337MVLUAMDJ (v 4.2.2)), but the same sound and audio/media problem exist's no matter what firmware or version the phone ends up being .
I should have just left it with CM as it was but *sigh* here I am, please help.
Click to expand...
Click to collapse
try with this firmware
lets me see

k thanks i'll try it (once it's slow download is done) and update this post. Looks the same except I guess it's android v5.0.1 (well and it's a different CSC/PDA).
K well i've tried that firmware and it's given me some abnormal problems.
Odin typically just writes in like two minutes and boom done, but when I tried to flash with the firmware you suggested like every 15 seconds it would say ...
"Receive Response from boot -loader"
"Transmission Complete.."
"Now Writing .. Please wait about 2 minutes"
It kept cycling through those 3 messages until it FINALLY finished and it say's PASS but it took 9 min 53 seconds which is like 5 times longer then it's ever taken.
Wheather this is relevant or not i'm not sure just trying to give as much details as I can.
Anyways, after booting the phone the samsung logo came up as usual and usually it takes like 5-10 min sitting at this logo before the phone completes loading, presumably setting up the firmware I imagine.
It's been now sitting at that logo for over 20 minutes and i'm about to try wiping with TWRP the davlic cache/cache/data/internal and either trying again with odin (v3.07) OR
If that contines to not work I might put the tar.md5 on the external SD card and recover a saved backup I have on the SD card (with the stock firmware I had before that doesn't allow Wi-Fi to be enabled nor audio/media to play) and use Mobile Odin Pro .apk (I paid for the pro version) from within that restored recovery to flash the firmware you suggested to my phone again.
This is probably redundant but I just figure I might as well try absolutely everything I can possibly think of with your firmware.
If you have any idea why I might be experiencing these abnormal Odin flashing and/or initial loading conditions of the firmware you (or anybody ) suggested i'd appreciate any advice you can give.
I'm going to try and reflash with Odin on my PC again right now (i'm certain thing's like the USB cable are fine and my PC and phone can transfer data without issue .. but that's why i'm going to try mobile odin if after this next attempt doesn't work either).
I'll keep the thread updated, any and all advice is welcomed and highly appreciated
EDIT: OMG it made a like startup theme sound ... that's the first time it's outputted sound in 3 day's !!! It's at the Samsung screen loading the newly flashed firmware so hopefully that completes because wow my phone made noise finally !! Now to wait, and wait....

It won't go past the Samsung logo. So I guess i'll try Mobile Odin. I don't have much faith but it's worth trying.
Uh the backup of the stock firmware I made won't load ... but the hyperdrive rom did. Sound and the dialer work perfectly fine in this rom now, so I guess thing's are more or less fixed. Even though i've wiped the cache/davlic/internal/data in order to prepare to flash the other firmware or this hyperdrive rom (I wipe it every time) in this rom it's reporting my phone's baseband to be I337MVLUGOC4 which is that of the firmware you suggested ...
I'd still rather not use this rom, I thought it was ok at first but meh i'm going to try to go back to CM (after all this *rolls eyes*), trying to use Mobile Odin to install the firmware that you recommended and that appears to have ... somehow fixed the sound can't detect the model of my phone and is dumping, this is not something that has happened with the app before so I don't think i'll be flashing the firmware you suggested.
If it did something to globally fix the crashing when an app was instructed to play audio as it appears to have I guess i'm going to just go download the full CM now, put it on the SD card and install it with TWRP.
So uh, not 100% there yet but it does appear what you've suggested has solved my problem (because worst case scenario i'll just be stuck with the Hyperdrive rom ... but i'll have a working phone) so thanks so much bud I was quite upset and worried about what I was going to do still paying off a useless phone on a contract i'm stuck with for another year still.
I suppose there's no real need in continuing to update this thread as it appears my problems are solved and all that's left are things i'm doing not to fix anything but just because of personal preference over what rom to use but if you want to know anything more just ask, otherwise thank you so much you saved my ass and i'm very grateful.

Missing "HotSpot & Tethering" / Hotspot not functioning

So, I'm having a particularly strange issue here. I recently got this Sprint Note 4 and activated it. However, there appears to be a missing option under settings. Tethering and Hotspot is straight up gone. To clarify, I have pictures attached showing the item listing, and one without it.
Clarifications of troubleshooting I've tried so far:
I have attempted a factory reset of the device
I have attempted to do a reset with ##72786#
I have tried updating Profile, PRL,
I am using a DeOdexed PH4 6.0.1 ROM. I have tried reflashing per instruction (triple wiping Cache, Dalvik, Internal, System, etc)
I have tried flashing a STOCK OTA PH4 ROM to see if it would show up there. It does not.
I called Sprint technical support to reprovision my phone. They pushed out a a reprovisioning that I accepted. No change.
At one point, Wanam/Xposed was attempted to be installed. I checked for system/csc/features.xml. It was not there
http://forum.xda-developers.com/note-4-sprint/development/rom-stock-ph4-bloated-deodexed-t3473610/ is the custom ROM i'm using. However, it doesn't seem like a ROM specific issue.
If I use Activity Launcher or itools, i can access the actual wifi hotspot MENU (the toggle off and on, LAN settings, etc). I can enable it and the system will broadcast the SSID. However, if I try connecting to it, no devices are able to successfully connect.

here is the Activity Launcher referenced, for other readers:
http://forum.xda-developers.com/showpost.php?p=66713935&postcount=7
but anyways, regarding devices not being able to connect, sometimes the data connectivity (through hotspot only, not for the entire phone) will go dead if you don't start using it immediately after first unlocking and activating tether.
in my experiences, if you keep data alive by immediately connecting a device after your first time turning tether on (after unlock) by downloading a large file or somewhat frequently reloading web pages (on the connected device!) -- anything that will keep data sending and receiving -- it will stick, and the data service to connected device issues will stop.
it's not foolproof, it's not a silver bullet, but this is the method to the madness I have learned and worked for me many times when changing roms and even getting new phones.
it's been a couple months since I had to fiddle with it last, so I can't remember if it was necessary to re-unlock after a failed attempt at keeping data alive. you might only have to toggle data off then back on for another attempt.
when I had the problem of connected devices losing internet access, it would only happen after having worked for a few seconds to a few minutes. it'd work then abruptly stop, and this is my "fix"

My issue seems more in line with the devuces failing to validate to begin with. Not losing connection.

I had something like this before, I vaguely recall it having to do with using Odin vs. OTA stock. So did you try wiping your phone completely then Odin the stock PH4 tar, or did you OTA to PH4?

beezar said:
I had something like this before, I vaguely recall it having to do with using Odin vs. OTA stock. So did you try wiping your phone completely then Odin the stock PH4 tar, or did you OTA to PH4?
Click to expand...
Click to collapse
The very very very first time, I OTA'd to PH4. The next two tries were wiping completely and using the PH4 tar file. So both methods have been attempted.

I was referring to loss of internet connection, not signal related. I thought that was clear, sorry

Sterist said:
I was referring to loss of internet connection, not signal related. I thought that was clear, sorry
Click to expand...
Click to collapse
I thought you meant loss of internet connection in the sense of anti-tether provisioning from Sprint. My phone's LTE never goes down (and I am able to still browse the internet from the mobile device while tethering).
The connected devices never successfully "connect". They aren't listed as connected devices under the mobile hotspot. My other Android phone (without mobile data) is forever connecting. My macbook claims it has an assigned IP but is "unable to access the internet". So I'm not sure what the hell is going on with that.
At this point, I have restored my Note 3 as my active device until I get this resolved. I'm willing to re-write everything down to the barest metal I can.
Somebody in another topic mentioned something about PIT. I don't know anything about that sort of thing. My knowledge extends about as far as installing recovery and flashing ROMs.
I'm confident I could follow procedure, but could use a guiding hand on where to go from here.

sounds like the tether unlock method you used was not done correctly, whether by whoever made it or yourself
method 2 in Galaxy Tools should work just fine. there are several threads in the Sprint note 4 seconds that contain the apk or ppl that will pm it to you. the author discontinued the public/free version of the app and now chargers $35+ per person for a 1 time use lol once you get a copy of the free one, make copies and store on multiple devices forever.
it's primarily for Sprint Sammy devices, so you prob won't see much if anything about it here in the collective note 4 forum.
may work on some boost or even tmo, but yeah.
edit:
you'll want either 3.1.5, easy install n msl read broken on MM and less features
or 3.1.8, troublesome install with msl read working but unreliably, more features.

Sterist said:
sounds like the tether unlock method you used was not done correctly, whether by whoever made it or yourself
method 2 in Galaxy Tools should work just fine. there are several threads in the Sprint note 4 seconds that contain the apk or ppl that will pm it to you. the author discontinued the public/free version of the app and now chargers $35+ per person for a 1 time use lol once you get a copy of the free one, make copies and store on multiple devices forever.
it's primarily for Sprint Sammy devices, so you prob won't see much if anything about it here in the collective note 4 forum.
may work on some boost or even tmo, but yeah.
edit:
you'll want either 3.1.5, easy install n msl read broken on MM and less features
or 3.1.8, troublesome install with msl read working but unreliably, more features.
Click to expand...
Click to collapse
Came back around to this, as I am running a multi-rom and am still encountering this issue. I never attempted any hotspot unlockers. The hotspot was missing from the get-go.

Gamemaster1379 said:
Came back around to this, as I am running a multi-rom and am still encountering this issue. I never attempted any hotspot unlockers. The hotspot was missing from the get-go.
Click to expand...
Click to collapse
Just a thought and question: when you Odin stock tar to recover from this condition, are you using the rooted extended power menu to boot to download mode? Or, do you prevent the auto reboot of stock tar flash with Odin options?
A noted developer, @idone from Galaxy Tool app, once shared with me that rooted shortcut or preventing auto reboot can prevent the normal flash of Odin booting to recovery momentarily to set csc options. csc options flashed may not restore on any boots if you skip that initial auto boot.
The suggested method is to power down and pull battery for 30 seconds our more before reinserting battery and manually booting to downloaded mode. And do not uncheck auto reboot or pull battery but use Odin defaults and let phone auto boot. Doing this allows the phone to boot into recovery to do its thing briefly before booting system. I usually just let it perform the setup wizard and didn't activation just in case.
I rarely do the the data profile update or PRL because if letting the phone setup this way and phone prompts to reboot later, I believe this all done. But since this may allow ItsOn to bootstrap initialize, after flashing TWRP and backing up, I wipe internal memory and factory reset before flashing a custom ROM. Data format is optional; I don't always do that.
But if you do all that and don't see hotspot in Settings of stock, that's a problem. Maybe from dead stock, try KIES or Smart Switch to restore latest stock and check again?
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