Like many others I ran into a problem when rooting my i337. If you follow the popular instructions, you are told to install towelroot after loading the NC1 firmware. Like many, my wifi was disabled after loading NC1 leaving you stuck. On NC1 my PC would also not recognize the i337 as a drive so that wouldn't work either. Fortunately I noticed that Bluetooth was still functional and used it to download the towelroot apk from my bluetooth enabled pc.
I hope this helps someone else stuck in this position. I struggled for hours before noticing that bluetooth was working.
What instructions did you follow? They were probably for older firmware. Back then, You had to flash NC1 modules zip file after flashing any NC1 rom or your wifi wouldn't work. You still have to do it, but now you use OC3 modules.
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So my sprint s4 was on MK2, 4.3, so i used odin and found a MJA firmware on 4.3 and apparently it worked. After that my wifi was perfectly fine but then I rooted my phone and i cant seem to turn WiFi on so im stuck using 4g and also my PlayStore wont download anything
smoosani22 said:
So my sprint s4 was on MK2, 4.3, so i used odin and found a MJA firmware on 4.3 and apparently it worked. After that my wifi was perfectly fine but then I rooted my phone and i cant seem to turn WiFi on so im stuck using 4g and also my PlayStore wont download anything
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Click to collapse
I've had my WiFi get stuck off as well, which required me to replace the ROM on the phone to resolve.
Anyhow, until you're ready to reformat your phone you could following steps in the link below to have your phone download apps from the store without wifi:
https://support.google.com/googleplay/answer/113412?hl=en
You can also check to ensure background data is on:
https://support.google.com/googleplay/answer/1663315?hl=en
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.
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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:
I received a new phone since I broke my old GS4 (I337). It was on AT&T 4.2.2 and I rooted it using motochopper. It was fine. It automatically updated while I was asleep to 4.4.2. I had rooted my old GS4 on the same update. So I figured I'll just root it again. So I used the method where I flash the NC1 kernel, use towel root, then flash NJ4 back. Now my WiFi will not turn on, but I do have root access. Also, a message saying "Unauthorized actions have been detected" and it tells me to restart to undo these changes. I don't want to do it in fear of bricking my device. I'm really scared now and I desperately need to fix this. I just want to go back to complete stock 4.4.2. I've tried reflashing the NJ4 file twice and WiFi will still not turn on. I've attached pictures of the notice and my device info. Please help. I cannot brick this device. I will answer to any questions as fast as possible. At the moment, I am debating whether or not to flash this because I am unsure if it will be compatible. ALL_ATT_I337UCUFNB1_I337ATTFNB1_505595_REV06_user_low_ship_MULTI_CERT.tar
http ://i.imgur.com/68B7MNM. png?1
http ://i.imgur.com/6Cjnzug. png?1
brandon1999 said:
I received a new phone since I broke my old GS4 (I337). It was on AT&T 4.2.2 and I rooted it using motochopper. It was fine. It automatically updated while I was asleep to 4.4.2. I had rooted my old GS4 on the same update. So I figured I'll just root it again. So I used the method where I flash the NC1 kernel, use towel root, then flash NJ4 back. Now my WiFi will not turn on, but I do have root access. Also, a message saying "Unauthorized actions have been detected" and it tells me to restart to undo these changes. I don't want to do it in fear of bricking my device. I'm really scared now and I desperately need to fix this. I just want to go back to complete stock 4.4.2. I've tried reflashing the NJ4 file twice and WiFi will still not turn on. I've attached pictures of the notice and my device info. Please help. I cannot brick this device. I will answer to any questions as fast as possible. At the moment, I am debating whether or not to flash this because I am unsure if it will be compatible. ALL_ATT_I337UCUFNB1_I337ATTFNB1_505595_REV06_user_low_ship_MULTI_CERT.tar
http ://i.imgur.com/68B7MNM. png?1
http ://i.imgur.com/6Cjnzug. png?1
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Click to collapse
Bricking is almost impossible. So stop stressing out. You are in the wrong forum.
http://forum.xda-developers.com/galaxy-s4-att
Usually you have a wrong modem flashed or something with that problem. Stop stressing out and take your time to find the solution. You will not brick it.
Hello all,
I have an S5 running 4.4.4 and the (G900VVRU1A)NK2 build and need to root it (I have been delaying the Lollipop OTA each morning for months and am sick and tired of it).
I have read multiple threads and found a lot of step-by-step and YouTube videos on how to do it by reverting back to the older NCG kernel, running several apps (tr_v2.apk, BusyBox.apk, Safestrap-G900V-3.75-KitKat.apk and SuperSU) , then going back to the NK2 kernel, but each one points to a bad G900V_NK2_Stock_Kernel.tar file or no file at all.
I have searched for and downloaded over twenty G900V_NK2_Stock_Kernel.tar files from various sites without success. Every time I find one, then try and load it in Odin, it will show the file to be invalid including the one on this forum at http://forum.xda-developers.com/showthread.php?t=2784880 (actually, it will hang Odin, but if I try the NCG kernel, it validates it fine).
Does anyone know where to find a good NK2 file?
I have found several good NI2 kernel files but worry that since my phone is at NK2, there could be an issue. Is this correct (and I should NOT use the NI2 kernel file in place of the NK2 one)?
Thanks for any help.
Frank in Michigan
UPDATE: NEVER MIND - FOUND A GOOD NK2. ROOTING PROCESS WORKED FINE.
I followed instructions to install Lollipop, keep root, and enable WiFi tethering. I successfully booted into deodexed Lollipop, then tried to flash the WiFi tethering. Now my phone gets stuck on the Verizon boot screen. Can anyone advise as to how to resolve?
mojhale said:
I followed instructions to install Lollipop, keep root, and enable WiFi tethering. I successfully booted into deodexed Lollipop, then tried to flash the WiFi tethering. Now my phone gets stuck on the Verizon boot screen. Can anyone advise as to how to resolve?
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Click to collapse
Go to the thread linked in my sig and follow the "troubleshooting a bricked phone" steps. If that fails, you'll have to start over and re-flash your lollipop ROM. Make sure the wifi tethering file is the correct one for your version, and that it downloaded correctly by checking the md5.