WiFi & Bluetooth Won't Turn On - Galaxy Tab 4 Q&A, Help & Troubleshooting

I am trying to fix a Tab 4 that is less than two months old. My buddy bought it while he was home on leave and it was working just fine until a couple weeks ago. Now, when trying to turn on either WiFi or Bluetooth, the button that should turn green when WiFi/Bluetooth is on, will shift back to the off position after a couple of seconds. So far, we have tried to factory reset the device but that did not work. Did he get a incomplete system update? Any recommendations how to fix this? Otherwise he has a very good-looking brick. Thanks.

Please Move To Troubleshooting Thread
aksaunders said:
I am trying to fix a Tab 4 that is less than two months old. My buddy bought it while he was home on leave and it was working just fine until a couple weeks ago. Now, when trying to turn on either WiFi or Bluetooth, the button that should turn green when WiFi/Bluetooth is on, will shift back to the off position after a couple of seconds. So far, we have tried to factory reset the device but that did not work. Did he get a incomplete system update? Any recommendations how to fix this? Otherwise he has a very good-looking brick. Thanks.
Click to expand...
Click to collapse
Sorry, this should have been posted in a different sub-forum. Mods can you move it for me? Thanks. And again, sorry about that.

Flash Firmware Partition or better the complete firmware

I would try just using Odin to flash it back to stock.
Sent from my XT907 using XDA Free mobile app

mrkhigh said:
I would try just using Odin to flash it back to stock.
Sent from my XT907 using XDA Free mobile app
Click to expand...
Click to collapse
This

I have the same issue, @aksaunders have you tried flash it to stock?

Just flashed the last stock firmware and didn't work.
Any ideas?

Call Samsung

Hi,
I have the same issue, @aksaunders
Factory Reset Not resolved.
Flash by odien to the latest official ROM Not resolved.
Samsung representation in iran Not solve the problem .
Because I bought from Canada.
You have a solution?
Tablet Model:sm-t230nu
Thanks.

Same problem Wifi Bluetooth SM-T231
I have same problem, Reinstall with Odin, wipe hard reset, and nothing... If someone have any Idea please answer here , and Very thx
Please copy and paste on your web browser for see the problem in the tab samsung tab 4 youtu.be/q4zWr2ZAF2g

Yoshincha said:
I have same problem, Reinstall with Odin, wipe hard reset, and nothing... If someone have any Idea please answer here , and Very thx
Please copy and paste on your web browser for see the problem in the tab samsung tab 4 youtu.be/q4zWr2ZAF2g
Click to expand...
Click to collapse
pls make a
# ls -al /persist/
and pm to me.
looks like a missing mac file or radio Firmware.
check if you have this file -> WCNSS_qcom_wlan_factory_nv in /persist
if not flash this zip -> http://download.pac-man-rom.de/twrp/fix/Persist_Repair.zip

wifi bt not on
and where to put those files?

any solution yet? i have the exact same problem...

Tablet Model:sm-t230nu
Tablet Model:sm-t230nu is a big waste of money fellows, I have tried everything and now Samsung will charge more money to fix a broken item they put on the stores this is terrible

Could someone put the download link again im having problems with the wifi and bluetooth of my tab 4

Excact same problem.
I have the exact same problem.
I flashed tab 3 kernel to root my devices . After that I installed stock firmware again because my devices was not fully rooted.
Now I have WiFi and Bluetooth problem.
THIS DEVICES IS A WASTE ANYWAY

Why would you flash a kernel for the tab 3 your lucky you didnt brick your tablet. Only flash kernels that are made for your specific device cause unless im missing something tab 3 kernels arent the same as tab 4 kernels and hence why your bluetooth and wifi arent working anymore. In my case i havent flashed any kernels or roms its stock ROM only rooted not even a custom recovery so your issue might be completly diffrent than my problem.

bump
Im having the same problem and my persist folder is missing can someone please post the persist.zip again.
Thank you

trizyman said:
bump
Im having the same problem and my persist folder is missing can someone please post the persist.zip again.
Thank you
Click to expand...
Click to collapse
Yeah someone should. Has anyone tried wiping internal storage in twrp then flash a custom rom from your sd card? I've had to do that sometimes for my phone to get WiFi working. If that doesn't work someone should try and grab a logcat
Sent from my SM-T800 using Tapatalk

Logcat
Here's what I grabbed.
I also flashed a custom rom to see if that would help and it still does not work

Related

{HELP!!} Theme Bricked my Wifi Only Tab

Hello, a theme ( http://forum.xda-developers.com/showthread.php?t=1328950 ) did brick my device, am using Task650 version 10 ROM WiFi only model 16GB, i installed the "Layers In Paris V3 theme zip file over his rom and now my device get passed the the booth animation, i wiped/reset factory setting, wiped dalvick, cache, and wiped system, it wouldnt get passed it, now i formatted system from recovery and it won't get passed the Samsung Galaxy Tab 10.1 writing you see when you power the Tab on, i need help on what to do because i can't even access the memory to load a ROM zip to reflash it.
someone wrote to me "to set up adb which lets you push files to your tab"
So the question is this too
What is adb ? "to set up adb which lets you push files to your tab" When i went to mount SD card in recovery, the systems keep telling me that "E:unable to open ums file lunfile (No such file or directory) Couldn't open directory," Then what do i do to load new ROM and flash it again or get my tablet working ? Please i need help here
Well you've just learned rule #1 the hard way. Always do a nandroid backup from CMW.
You could restore back to stock using ODIN. All the files you need are in the How To Root thread.
Jay Evans said:
Well you've just learned rule #1 the hard way. Always do a nandroid backup from CMW.
You could restore back to stock using ODIN. All the files you need are in the How To Root thread.
Click to expand...
Click to collapse
Yes i really learnt it the hard way, besides now i know, but can you provide a link to that thread ? but the tablet wouldn't mount on SD Card anymore ? the computer don't see it as a removable drive like it always does, so how would i restore back to stock when i can't load the zip file ?
install Kies at first
zinty said:
Yes i really learnt it the hard way, besides now i know, but can you provide a link to that thread ? but the tablet wouldn't mount on SD Card anymore ? the computer don't see it as a removable drive like it always does, so how would i restore back to stock when i can't load the zip file ?
Click to expand...
Click to collapse
This is the wrong place to ask these questions and there will be people telling you that soon
If you can get into download mode, use Odin to flash stock. Thread below with all info how to do that.
http://forum.xda-developers.com/showthread.php?t=1171089
xpakage said:
This is the wrong place to ask these questions and there will be people telling you that soon
If you can get into download mode, use Odin to flash stock. Thread below with all info how to do that.
http://forum.xda-developers.com/showthread.php?t=1171089
Click to expand...
Click to collapse
Stock What ? ROM or recovery and after that, what happens since i have wiped off the OS inside it when i did system/format ? Yes i have kies a long time ago in my computer but Kies doesnt see the tab if i connect it to the computer but i can still go into downloading mode.
zinty said:
Stock What ? ROM or recovery and after that, what happens since i have wiped off the OS inside it when i did system/format ? Yes i have kies a long time ago in my computer but Kies doesnt see the tab if i connect it to the computer but i can still go into downloading mode.
Click to expand...
Click to collapse
Odin restore will return your device (ROM AND RECOVERY) back to stock. Just boot your tab into download mode then connect to your computer with odin running and you will see a yellow box showing your device is connected. If it doesn't detect it, you need to get the correct drivers.
Sent from my GT-P7510 using Tapatalk
zinty said:
Stock What ? ROM or recovery and after that, what happens since i have wiped off the OS inside it when i did system/format ? Yes i have kies a long time ago in my computer but Kies doesnt see the tab if i connect it to the computer but i can still go into downloading mode.
Click to expand...
Click to collapse
Cromius said:
Odin restore will return your device (ROM AND RECOVERY) back to stock. Just boot your tab into download mode then connect to your computer with odin running and you will see a yellow box showing your device is connected. If it doesn't detect it, you need to get the correct drivers.
Sent from my GT-P7510 using Tapatalk
Click to expand...
Click to collapse
And then from the stock ROM listed in the provided link, you will then flash the CWM/Recovery to be able to flash a ROM you want to run/flash.
xpakage said:
And then from the stock ROM listed in the provided link, you will then flash the CWM/Recovery to be able to flash a ROM you want to run/flash.
Click to expand...
Click to collapse
Ok thanks so much guys, i have flashed the stock recovery with Odin but it still stops at Samsung Galaxy Tab 10.1 welcome message and won't open the USB Storage for me to load the stock rom, so how do i flash it into the Tab with this Odin i used to restore stock recovery, please i help me one more time, i have learnt my lessons already
Get an ipad
iaminflames said:
Get an ipad
Click to expand...
Click to collapse
Bro, that's not cool, anyone can make a mistake, besides i was only trying to flash a theme, like i always did, no one told me to choose android, i know the best so i went for it, this a place to help everyone not to laugh at them, if you have answers to my last request, please give it to me, thanks.
Ok thanks so much guys, i have flashed the stock recovery with Odin but it still stops at Samsung Galaxy Tab 10.1 welcome message and won't open the USB Storage for me to load the stock rom, so how do i flash it into the Tab with this Odin i have used to restore stock recovery, please i need help here one more time, i have learnt my lessons already
One more lesson you need to learn is, post in the right section? You think QaA stands for Quinn and Anderson? Since you didnt even manage to read the forum rules and post right it was only a mather of time before you bricked something
Sent from my GT-I9100 using xda premium
FLASH STOCK ROM FROM ODIN ALSO FLASH FLASH FLASH ODIN ODIN. You should manage the rest
Sent from my GT-I9100 using xda premium
zinty said:
Ok thanks so much guys, i have flashed the stock recovery with Odin but it still stops at Samsung Galaxy Tab 10.1 welcome message and won't open the USB Storage for me to load the stock rom, so how do i flash it into the Tab with this Odin i used to restore stock recovery, please i help me one more time, i have learnt my lessons already
Click to expand...
Click to collapse
Try going into download and Odin flash the stock ROM again.
If the stock ROM flashed correctly, after up to a 10 minute wait, it should boot into the stock ROM. Then you will go into download again, Odin flash either the recovery from that link or the newer recovery from the below link. You should be able to place the Rom of choice on the SD and flash through recovery.
http://forum.xda-developers.com/showthread.php?t=1090289
norpan111 said:
One more lesson you need to learn is, post in the right section? You think QaA stands for Quinn and Anderson? Since you didnt even manage to read the forum rules and post right it was only a mather of time before you bricked something
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Isn't there also a rule against flaming, and letting mods do the modding?
Sent from my SGH-T989 using xda premium
Questions or Problems Should Not Be Posted in the Development Forum
Please Post in the Correct Forums and Read THIS
Moving to General
iaminflames said:
Get an ipad
Click to expand...
Click to collapse
+1. Considering the questions, I think a leappad might make more sense.
Thanks guys, my tablet is back, i really appreciate the help and sorry Admin, i didn't know the right place to put the thread, besides that's the side i visit always, that was why i dropped it there, please for some of us, next time, don't joke about things, no one is perfect. Am so happy, thanks everyone.

4.3 fails during install

Hi,
On MF3.
I'm rooted. I have clock work recovery installed.
I can download the update succeffuly however when the phone reboots the install begins, gets as far as 25% then fails. Phone reboots back to 4.2.2 with a message that says the install was interrupted.
Have tried twice with the same result.
Anyone else experiencing this?
Sent from my SAMSUNG-SGH-I337 using Tapatalk
ckalantzis said:
Hi,
On MF3.
I'm rooted. I have clock work recovery installed.
I can download the update succeffuly however when the phone reboots the install begins, gets as far as 25% then fails. Phone reboots back to 4.2.2 with a message that says the install was interrupted.
Have tried twice with the same result.
Anyone else experiencing this?
Sent from my SAMSUNG-SGH-I337 using Tapatalk
Click to expand...
Click to collapse
If I were you I would go back and read a little information about mf3 and what kind of recovery can be used. It sounds to me like you might be very confused. In order to correctly keep from bricking your phone you may want to read up on things. Good luck.
ckalantzis said:
Hi,
On MF3.
I'm rooted. I have clock work recovery installed.
I can download the update succeffuly however when the phone reboots the install begins, gets as far as 25% then fails. Phone reboots back to 4.2.2 with a message that says the install was interrupted.
Have tried twice with the same result.
Anyone else experiencing this?
Sent from my SAMSUNG-SGH-I337 using Tapatalk
Click to expand...
Click to collapse
Since you are rooted, take a look in the /cache/recovery directory. Read the log file. It will tell you where things messed up.
For example, I had forgotten that I did something with csc and had replaced the feature.xml file. Luckily, I had a back up of the original file. I renamed it, fixed is file permissions to rw-r--r--, advanced my clock one day, and then was able to install MJ9.
Good luck, and remember you won't have root anymore when you install this (for the time being)
Yrs,
dkephart
Sent from my SAMSUNG-SGH-I337 using Tapatalk
ckalantzis said:
Hi,
On MF3.
I'm rooted. I have clock work recovery installed.
I can download the update succeffuly however when the phone reboots the install begins, gets as far as 25% then fails. Phone reboots back to 4.2.2 with a message that says the install was interrupted.
Have tried twice with the same result.
Anyone else experiencing this?
Sent from my SAMSUNG-SGH-I337 using Tapatalk
Click to expand...
Click to collapse
I had the same problem. The only way I was finally able to upgrade to 4.3 was to use Odin to revert to stock (unrooted) 4.2.2 MF3 using the files on this thread: http://forum.xda-developers.com/showthread.php?t=2502003 Once I did that I ran the OTA update to 4.3 and it worked without any problems
To able to keep your root and upgrade from 4.2.2 to 4.3 you have to change your param file back to the stock. Thats all the information that I have so far so... not completely sure. But I think that is what you're supposed to do.
Because you have a custom param file, when you try to upgrade to 4.3 it's telling you there is an issue with your phone.
I may be wrong.
Is there a copy of the correct feature.xml? Im having the same issue
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
According to the log its stopping when it can't find the chat on apk. I did remove it using titanium.
Will restore it try again andbipdate the thread. Thanks for pointing out the correct log file to look at.
Sent from my SAMSUNG-SGH-I337 using Tapatalk
I checked again and found my backup feature.xml. Typed this from mj9.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
ckalantzis said:
Hi,
On MF3.
I'm rooted. I have clock work recovery installed.
I can download the update succeffuly however when the phone reboots the install begins, gets as far as 25% then fails. Phone reboots back to 4.2.2 with a message that says the install was interrupted.
Have tried twice with the same result.
Anyone else experiencing this?
Sent from my SAMSUNG-SGH-I337 using Tapatalk
Click to expand...
Click to collapse
I had the same problem happen to me on Wednesday night and last night. Today I used Odin to go back to stock MF3, however, then I couldn't get the OTA update. It kept saying my firmware was up to date each of the three times I restored it.
Now I'm finally on MJ9 after copying "update-mf3-mj9.zip" to my SD card, going into recovery mode, and updating from external SD card. Now I can use my Galaxy Gear!
Cause I want to sound like a noob.
How did you install CWM on what reads to me a MF3 S4.
Those on MF3 have been using Safestrap cause CWM hasn't been possible.
Sent from my ATT S4 MF3 using Tapatalk
jball said:
Cause I want to sound like a noob.
How did you install CWM on what reads to me a MF3 S4.
Those on MF3 have been using Safestrap cause CWM hasn't been possible.
Sent from my ATT S4 MF3 using Tapatalk
Click to expand...
Click to collapse
I was excited when I rooted the phone, then installed ROM manager premium. It allowed me to install the recovery. You can even boot into the recovery from ROM Manager.
However since the S4 is locked down tight, you can do any thing from there. So i can't flash anything. It even gives me a message saying as much.
However it is partially installed I can boot into it at will.
I will post a video of it. So that you all have an idea of what im talking about.
Sent from my SAMSUNG-SGH-I337 using Tapatalk
Don't waste your time with a video,its your stock recovery.your not the first to have done this.lets jump ahead a bit and just install Safestrap.whats Safestrap you might ask?search for it and READ please sir.
Sent from my ATT S4 MF3 using Tapatalk
jball said:
Don't waste your time with a video,its your stock recovery.your not the first to have done this.lets jump ahead a bit and just install Safestrap.whats Safestrap you might ask?search for it and READ please sir.
Sent from my ATT S4 MF3 using Tapatalk
Click to expand...
Click to collapse
While I was preparing to record it, I did notice that you are correct. Although Rom Manager goes through the motions of flashing the recovery, when you attempt to boot into the Recovery, you are faced with an Error, and default back into Android Recovery.
Although I know all about Safestrap...I think we've all missed the point. The OP was meant to get help about why the 4.3 OTA was failing 25% into the install.
I've got what I needed by being pointed to the location of the install log.....and while reading through it, I noticed that the install is failing because I removed the Chat On APK. I will install from backup and move forward.
Thank you all who provided the necessary guidance to solve the original problem.
Thank you as well to those who helped clear up the whole Clockwork vs Android recovery part. Although a minor part of the original post, it's good that we don't spread misinformation.
Cheers
ckalantzis said:
While I was preparing to record it, I did notice that you are correct. Although Rom Manager goes through the motions of flashing the recovery, when you attempt to boot into the Recovery, you are faced with an Error, and default back into Android Recovery.
Although I know all about Safestrap...I think we've all missed the point. The OP was meant to get help about why the 4.3 OTA was failing 25% into the install.
I've got what I needed by being pointed to the location of the install log.....and while reading through it, I noticed that the install is failing because I removed the Chat On APK. I will install from backup and move forward.
Thank you all who provided the necessary guidance to solve the original problem.
Thank you as well to those who helped clear up the whole Clockwork vs Android recovery part. Although a minor part of the original post, it's good that we don't spread misinformation.
Cheers
Click to expand...
Click to collapse
You handled this all very well.
ITNV said:
I had the same problem. The only way I was finally able to upgrade to 4.3 was to use Odin to revert to stock (unrooted) 4.2.2 MF3 using the files on this thread: http://forum.xda-developers.com/showthread.php?t=2502003 Once I did that I ran the OTA update to 4.3 and it worked without any problems
Click to expand...
Click to collapse
Did you use all files? I mean, I've been trying the same for the past couple of days, and I even asked in that thread if I could use just the PDA file, nobody replied so I went ahead and did it, it removed the root and I kept all my files and settings (That was the idea) but just after that I can't connect anymore to Kies ( I could without issues, I did a full backup moments before) and trying to do the sideload it always gives me the Error 7, I even tried the full SD card update,it erased everything and guess what, when it rebooted for my surprise I was still at 4.2.2 MF3, so it just did the Wipe Data and then rebooted, so I lost almost 6 hours getting everything back as it was and then, I had the Damaged SD card error so I also lost all my pictures and videos withoout back up.
So, as you can see half a day later I'm still at the same point I was this morning and with a huge loss, so, please, Did you use all the files? If you did, doing this erase everything also?
Thanks in adavance.
erasat said:
So, as you can see half a day later I'm still at the same point I was this morning and with a huge loss, so, please, Did you use all the files? If you did, doing this erase everything also?
Thanks in adavance.
Click to expand...
Click to collapse
Yes. I used all the files. The result was a completely stock unrooted 4.2.2 so, yes, it reset the phone and erased everything that I had on there. (It left my external SD card intact but I would still advise removing it if there is anything on there you don't want to lose.)
ITNV said:
Yes. I used all the files. The result was a completely stock unrooted 4.2.2 so, yes, it reset the phone and erased everything that I had on there. (It left my external SD card intact but I would still advise removing it if there is anything on there you don't want to lose.)
Click to expand...
Click to collapse
Yep, that was the reason why I just used the PDA I didn't want to lose my data, and then I did it anyways, my mistake was not doing the Odin Restore just after I realized that it erased everything and I was still at 4.2.2, that's was the perfect time to do it, but now, after I finally put everything back as it was, I simply don't see myself by my own choice, doing all this again.
Thanks.
erasat said:
Did you use all files? I mean, I've been trying the same for the past couple of days, and I even asked in that thread if I could use just the PDA file, nobody replied so I went a head and did it, it removed the root and I kept all my files and settings (That was the idea) but just after that I can't connect anymore to Kies ( I could without issues, I did a full backup moments before) and trying to do the sideload it always gives me the Error 7, I even tried the full SD card update,it erased everything and guess what, when it rebooted for my surprise I was still at 4.2.2 MF3, so it just did the Wipe Data and then rebooted, so I lost almost 6 hours getting everything back as it was and then, I had the Damaged SD card error so I also lost all my pictures and videos withoout back up.
So, as you can see half a day later I'm still at the same point I was this morning and with a huge loss, so, please, Did you use all the files? If you did, doing this erase everything also?
Thanks in adavance.
Click to expand...
Click to collapse
It was mentioned several times in that thread exactly what files to use and how to use them. There were also several pictures provided that showed EXACTLY what the ODIN screen should look like before the flash.
scott14719 said:
It was mentioned several times in that thread exactly what files to use and how to use them. There were also several pictures provided that showed EXACTLY what the ODIN screen should look like before the flash.
Click to expand...
Click to collapse
In the thread, there are tons of instances where it explains where to use each file and even pictures, I know because I read every single post, but none of them explains if I could use just the PDA one if I wanted to keep my settings while unrooting the phone, that's why I asked about it, because nobody replied to my question I decided to be the guinea pig, and yes, it works, you keep your settings, and I was glad, but as you can see, what I wanted to accomplish didn't work after all. Without all the files it doesn't fix the issue that causes the error 7 when doing the sideload.
help with mf3 to mj9
Having the same issue and formatted card with backup image.
Update got to 23 % and failed
now phone refuses to flash in odin.....and im missing factory apps preventing me from doing anything to get it back to stock
anyone have a stock restore image I could use in kies?
Would that work properly?

All sensors stop working

Hi,
After upgrading to KitKat and a custom ROM I have been having multiple issues with sensors. I have factory reset several times and clean flashed a few different ROMs but with the same result. The sensors do initially work but then just suddenly stop for no apparent reason.
I have also restored from my efs backup but this has not helped.
Any other suggestions?
Cheers
Any help, please?
I would suggest going back to pure stock 4.2.2 off samimobile first the full reset from Samsung recovery and wipe. You don't mention which custom roms ? Try that first though... Let me know !!
Full wipe your phone in recovery System, firmware,... Etc then reboot directly from CWM recovery in advance settings to download(odin mod) and flash the stock ROM.
make sure you back up everything.
Hope it helps
Sent from my SM-N9005 using Tapatalk
Dahdoul said:
Full wipe your phone in recovery System, firmware,... Etc then reboot directly from CWM recovery in advance settings to download(odin mod) and flash the stock ROM.
make sure you back up everything.
Hope it helps
Sent from my SM-N9005 using Tapatalk
Click to expand...
Click to collapse
Hi,
Did as both of you suggested but the problem still occurs. This is on X-note but also occurred on Omega. At a bit of a loss here as reverting to stock doesn't seem to help. I flashed the UK 02 rom as EE have not released 4.4.2 yet.
Any further suggestions?
Cheers
pinn___________ said:
Hi,
Did as both of you suggested but the problem still occurs. This is on X-note but also occurred on Omega. At a bit of a loss here as reverting to stock doesn't seem to help. I flashed the UK 02 rom as EE have not released 4.4.2 yet.
Any further suggestions?
Cheers
Click to expand...
Click to collapse
For me disabling media scanner did the trick, had the same problems, and I use tasker to disable media scanner when screen turns off, never had a problem since.
Sent from my SM-N9005
dfi2k5 said:
For me disabling media scanner did the trick, had the same problems, and I use tasker to disable media scanner when screen turns off, never had a problem since.
Sent from my SM-N9005
Click to expand...
Click to collapse
Hi,
I can't find the media scanner when I go into Titanium. What's the exact name, please?
pinn___________ said:
Hi,
I can't find the media scanner when I go into Titanium. What's the exact name, please?
Click to expand...
Click to collapse
Enter terminal emulator and get su access, then write:
pm disable com.android.providers.media/com.android.providers.media.MediaScannerReceiver
Sent from my SM-N9005
dfi2k5 said:
Enter terminal emulator and get su access, then write:
pm disable com.android.providers.media/com.android.providers.media.MediaScannerReceiver
Sent from my SM-N9005
Click to expand...
Click to collapse
Thanks . Tried that and for the moment sensors seem okay. Although now my wifi won't toggle on/off. Tearing my hair out here - grrrr!!!:crying:
Can this be done via Titanium backup or no? thx

Broke my WIFI (SPH-L720T) SOLVED

I have a SPH-L720T
A few months ago I rooted using CF-Auto-Root and everything was working fine. I made no other changes.
Last night I tried to update the phone using Kies so I could start using the WIFI calling. It seemed to update fine and started up but the WIFI was off. Now it cannot be turned on. Slide the switch to ON and it immediately switches back to OFF. I eventually did a factory reset on the phone but that did not resolve the problem. But it did start showing a message when I try to turn on WIFI that security software has disallowed the action. I went into SuperSU and it asked to turn of Knox. I did that. Now the message doesn't come up any more but WIFI still can't be turned on.
Can anyone offer any advice on what I should do next?
oaomcg said:
I have a SPH-L720T
A few months ago I rooted using CF-Auto-Root and everything was working fine. I made no other changes.
Last night I tried to update the phone using Kies so I could start using the WIFI calling. It seemed to update fine and started up but the WIFI was off. Now it cannot be turned on. Slide the switch to ON and it immediately switches back to OFF. I eventually did a factory reset on the phone but that did not resolve the problem. But it did start showing a message when I try to turn on WIFI that security software has disallowed the action. I went into SuperSU and it asked to turn of Knox. I did that. Now the message doesn't come up any more but WIFI still can't be turned on.
Can anyone offer any advice on what I should do next?
Click to expand...
Click to collapse
Odin the latest tar file (locate it yourself and if you don't know how to use Odin there are plenty of threads and posts on how to). And perform another factory reset.
Sent from my SPH-L720 using Tapatalk
daniel4653 said:
Odin the latest tar file (locate it yourself and if you don't know how to use Odin there are plenty of threads and posts on how to). And perform another factory reset.
Sent from my SPH-L720 using Tapatalk
Click to expand...
Click to collapse
Agree with this one. Odin to NC6. If you really wanted, ODIN back to NAF, see if Wifi works, then ODIN to NC6, and if wifi still works, re-root with CFAutoRoot
Thanks for the replies. Downloading NC6. Fingers crossed.
That did the trick without the need for another factory reset. Again I appreciate the help. Thank you.
cerj said:
@negamann303 PM sent..Btw, the rom is looking awesome.. You are the man
Sent from my SM-T217S using Tapatalk
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I suggest you put "solved" in the title of the thread so when someone in the future runs into the same problem they know where to find the answer.
Sent from my SPH-L720 using Tapatalk
daniel4653 said:
I suggest you put "solved" in the title of the thread so when someone in the future runs into the same problem they know where to find the answer.
Sent from my SPH-L720 using Tapatalk
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done. thanks again
o don't understand , I have same problem with wifi . please expline how can I solve it .

Soft-bricked Note 4. Odin wont recognize it in download mode.

Hey guys I installed the rom Super.Fast&LolliFamous™ (don't remember the exact version, but i can find this out), but a few days ago my phone started bugging out. It started lagging, vibrating and replaying sounds when going into lags, forcing me to reboot it. this helped the first time but an hour later it started again and now i can't boot it properly at all. I am able to get it into download mode and recovery with luck and a few tricks, but odin wont recognize the phone when connected to a pc (tried with 2 pc's and 6 different usb ports). I was able to flash another rom, but this did not fix the problem a bit (Alliance 2.2). With the same problem still there I tried flashing the stock rom over Odin, but as mentioned Odin won't recognize the phone. I have tried Installing/uninstalling Kies as well as Installing/uninstalling the samsung drivers on both pc's. Any help would be very appreciated!
croulder said:
Hey guys I installed the rom Super.Fast&LolliFamous™ (don't remember the exact version, but i can find this out), but a few days ago my phone started bugging out. It started lagging, vibrating and replaying sounds when going into lags, forcing me to reboot it. this helped the first time but an hour later it started again and now i can't boot it properly at all. I am able to get it into download mode and recovery with luck and a few tricks, but odin wont recognize the phone when connected to a pc (tried with 2 pc's and 6 different usb ports). I was able to flash another rom, but this did not fix the problem a bit (Alliance 2.2). With the same problem still there I tried flashing the stock rom over Odin, but as mentioned Odin won't recognize the phone. I have tried Installing/uninstalling Kies as well as Installing/uninstalling the samsung drivers on both pc's. Any help would be very appreciated!
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try to remove the drivers, and let windows find the drivers.
i never installed the drivers myself, windows does it for me
I already tried this...
I have tried connecting my old Galaxy S2 to see if it was the pc which was the problem. Odin recognized my old S2, but not my Note 4. Any ideas? Can i flash something in recovery which makes Odin able to register the Note 4? Help is greatly appreciated!
try a different version of odin, remember to run it as admin, and check the cable
I have already tried all this...
Damn you still have not fixed this? Maybe try another computer?
Sent from my SM-N910F using XDA Free mobile app
No I miss my note 4 I have tried 2 different PCs (see my first post) I believe i have tried anything I can by playing with Odin
I am able to get into recovery though. Does anybody have an idea what i could flash in recovery that might fix the problem? Thanks in advance
croulder said:
I am able to get into recovery though. Does anybody have an idea what i could flash in recovery that might fix the problem? Thanks in advance
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Click to collapse
Yeah man! Download cyanogenmod 12.1 or another rom and flash it! Then you should try it via Odin again
Sent from my SM-N910F using XDA Free mobile app
I already tried with Alliance 2.2. Would it be worth a try with Cyanogenmod 12.1? Link to the exact version? The newest nightly? Thanks!
When this has happened to me in the past Samsung's recovery software does the trick. Give it a try.
Sent from my SM-N910T using XDA Premium HD app
Thanks! Where can i install this? Do you mean the samsung recovery which you can boot into?
I got it to boot for some seconds but then it just turned off. I believe the battery to be the problem. Does anybody know how to test this? Else i'll just google
Have you tried install stock ROM ( or other ) via ADB sideload from recovery?

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