S4 sudden restarts itself - Galaxy S 4 Q&A, Help & Troubleshooting

Hi, is there anyway to find out why is my s4 randomly reboot itself? Everything is stock, updates to the latest firmware and only rooted+exposed...
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limjialok said:
Hi, is there anyway to find out why is my s4 randomly reboot itself? Everything is stock, updates to the latest firmware and only rooted+exposed...
Sent from my LG-D802 using XDA Free mobile app
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This does not belong here. Please move it to Help section before the moderator does.
Exposed could be issue, remove that and see.

a103 said:
This does not belong here. Please move it to Help section before the moderator does.
Exposed could be issue, remove that and see.
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Thanks but I couldn't find way to delete this post using the XDA app for android
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limjialok said:
Hi, is there anyway to find out why is my s4 randomly reboot itself? Everything is stock, updates to the latest firmware and only rooted+exposed...
Sent from my LG-D802 using XDA Free mobile app
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Click to collapse
Knox caused random reboots on rooted stock kitkat rom. Maybe it's caused by knox.
Otherwise it is Xposed. From what I know, Xposed on TW roms is still unstable.

Install a logging software like catlog

Related

Back to stock

Can someone point me into the right direction to going completely stock so I can catch the ota. Thanks.
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P1_e85 said:
Can someone point me into the right direction to going completely stock so I can catch the ota. Thanks.
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What OTA? Most all Roms now ate based on the latest MF9.
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P1_e85 said:
Can someone point me into the right direction to going completely stock so I can catch the ota. Thanks.
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Click to collapse
http://forum.xda-developers.com/showthread.php?t=2375523
Here this is the newest update we have so far.
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Whatever ota my phone downloaded. But as you know I cannot just install and restart. Since I am modded.
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P1_e85 said:
Whatever ota my phone downloaded. But as you know I cannot just install and restart. Since I am modded.
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That's why you flash a stock rooted MF9 ROM if you want to be on the latest and rooted.
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daniel4653 said:
That's why you flash a stock rooted MF9 ROM if you want to be on the latest and rooted.
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Ive tried this and still had problems. Hence I want to go back to stock and start unmodded.
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P1_e85 said:
Ive tried this and still had problems. Hence I want to go back to stock and start unmodded.
Click to expand...
Click to collapse
Here's how I did it:
http://forum.xda-developers.com/showthread.php?t=2277480
S4 rebooting as soon as I boot it!?
Hi!
So I followed Djembeys guide to root my s4 back when ME2/MF2(or smthn in that matter)was the newest firmware avable. But now I wanted to go back to stock and update my phone and as stated in the guide that would be no problem, well OTA didn't work so i did it via Kies. It worked as expected for a while before my phone started freezing and rebooting itself forever, like as soon as i get into the launcher.
Things I've tryed to do:
*Checking in download mode that everything is official, it is, and the phone doesn't seem to reboot while in download mode, should I flash a stock rom, I mean, what if the phone shuts off in the middle of the process?
*Doing a factory data reset via stock recovery, the "android" in recovery falls down and a triangle at his stomach. However the data reset worked, but it didn't solve the problem, still reboots but now when the phone is trying to set itself up.
What can i do guys? You think i can send it back to the store seeing everything is official in download mode?

Just a quick Root question

I was pretty big into XDA under my Original Note
I now have AT&T S4 and would like to root it.
Is there a way to root the S4 without a PC?
I would like to use TWRP I have goo installed but it wont root my device from Goo so was just curious.
I did browse the forums really didn't find this so I am posting it
Many thanks
What firmware are you on?
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HiTideBlastoise said:
What firmware are you on?
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4.2.2
baseband I337UCUAMF3
kernel
3,4,0-812098
build JDQ39.I337UCUAMF3
Korvan30 said:
I was pretty big into XDA under my Original Note
I now have AT&T S4 and would like to root it.
Is there a way to root the S4 without a PC?
I would like to use TWRP I have goo installed but it wont root my device from Goo so was just curious.
I did browse the forums really didn't find this so I am posting it
Many thanks
Click to expand...
Click to collapse
You need a PC to format the card, the rest you can do from Terminal Emulator: http://forum.xda-developers.com/showthread.php?t=2387577
If you browsed the forums you would know that you cant install a custom recovery on an S4 running MF3 firmware. Meaning no TWRP or CWR. But you can root with the above method.
I did look so your saying no matter what cdm and twrp cannot be on s4. Thats fkd if so
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Korvan30 said:
I did look so your saying no matter what cdm and twrp cannot be on s4. Thats fkd if so
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Click to expand...
Click to collapse
Do yourself a favor and look harder. There is a lot of information available about this and you WILL brick your phone if you don't take the time to read and learn about it. Good luck.
Look man I looked I will look again. But I have only bricked my phone once back when first Google phone came out not a noob. Just didn't want to spend hours looking if it took someone 30 sec to respond. Admin please close my thread due to lack of assistance will look elsewhere thanks
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Korvan30 said:
Look man I looked I will look again. But I have only bricked my phone once back when first Google phone came out not a noob. Just didn't want to spend hours looking if it took someone 30 sec to respond. Admin please close my thread due to lack of assistance will look elsewhere thanks
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Click to collapse
Dude, chill. Google "mf3 root xda" and you'll find you need a pc during some steps of the root process
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[ HELP] S4 I9505 OTA Update Problem

Hi! So I'm rooted and I want to update my phone but when I try to do it, it says "Your device has been modified. Software updates are not available." So I reset my flash counter using Triangle Away and now it says 'official' and 'O' but still that modified blah blah is still appearing. How do you solve this?
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You will have to flash the firmware manually thorugh ODIN and root it again :highfive:.
Joku1981 said:
You will have to flash the firmware manually thorugh ODIN and root it again :highfive:.
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Download the firmware via samobile. Com
remember a thanks
sent from my miui powered ?
Is there other way to do this? Not manually? I want to get every update even those little ones.
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AdamSanJuan said:
Is there other way to do this? Not manually? I want to get every update even those little ones.
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AFAIK Manually flashing the ROM is the only way. If you want OTA updates, do not root your phone.
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AdamSanJuan said:
Is there other way to do this? Not manually? I want to get every update even those little ones.
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Use wanam xposed to make the status to official in the phone.
See if that works. IMHO it wont still..
"If someone helps, never forget to hit thanks ? "
I kind of tried that already with Triangle Away but it didn't work. It said that phone runs with official firmware but the warning still appears.
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AdamSanJuan said:
I kind of tried that already with Triangle Away but it didn't work. It said that phone runs with official firmware but the warning still appears.
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Yeah because they arent a comprehensive way to change the "status"
Onlt flashing stock will work.
"If someone helps, never forget to hit thanks ? "
DeepankarS said:
Yeah because they arent a comprehensive way to change the "status"
Onlt flashing stock will work.
"If someone helps, never forget to hit thanks ? "
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Does flashing the stock erases my files?
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Help on how to root samsung galaxy s4 i9505 4.4.2 xxugng8

I want to root my s4 i9505 running android 4.4.2. I cant find guides on how to root my version (XXUGNG8). I always find so many tutorials but they say you have to be versions like xxufnb8 or something like that and other ones. Please can someone find me a tutorial kn how to root my s4?
Thanks
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lol123lol said:
I want to root my s4 i9505 running android 4.4.2. I cant find guides on how to root my version (XXUGNG8). I always find so many tutorials but they say you have to be versions like xxufnb8 or something like that and other ones. Please can someone find me a tutorial kn how to root my s4?
Thanks
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Take a look: HERE.
I already found a way to root my phone and it worked. But thanks anyway
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If i flash cwm recovery, will my device be wiped?
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lol123lol said:
If i flash cwm recovery, will my device be wiped?
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I recommend you better TWRP or Philz Recovery. Flashing custom recoveries don't wipe your device :highfive:
No. Flashing recoveries will not wipe your device., but it will trip knox to 0x1. This will void your warranty.
I also recommend TWRP. I couldn't flash CWM recovery. I did, but it just booted into the stock recovery instead of CWM. So I flashed TWRP.
Now that i rooted my phone, sometimes after im dome using it, when i hit the power button to off the sceeen, the phone randomly reboots. It Just straight away goes to the samsung spinning logo and then goes to the homescreen. But during the reboot it doesnt play the song and it doesnt go to the screen that says samsung galaxy s4 gt i9505. It's like its a quick reboot idk. This has happened three times now. Is there a way to fix this?
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It also happens after i end a call
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lol123lol said:
It also happens after i end a call
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Flash the latest firmware for your device for solve your problems.
Where do i get the latest firmware from? And i dont know which is the latest one. Also will this remove root?
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And has flashing the latest firmware removed this problem for other people?
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Is this happening because of something called knox? Also can you explain what will happen after i flash the latest firmware? Will i lose root?
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Amazing!
Hi, I have the same problem.
I do a wipe reset and a root: root is not working.
I removing root and make some root tentatives:
In Windows (Odin): not working
In Linux (motoshopper): not working
I have the XXUGNG8 and I don't understand why since this update, I can't root again!
Do you have an idea please?
If your talking about the random reboots, it happened to me because i let supersu app disable knox. After that the random reboots started. I fixed that by unfreezing the apps through titanium backup. For me 2 apps called knox notification manager and migration agent were frozen so i unfroze them through titanium backup. Then the random reboots stopped
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After that you have to remove all the knox files in your phone. Check here:
http://forum.xda-developers.com/showthread.php?t=2514703
However, DO NOT delete a file called libknox_encryption.so otherwise your phone will not boot up.
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Can't install custom rom or TWRP on I337

Whenever I install a rom, it gets stuck in boot loops or I lose my wifi
MikeyJay1992 said:
Whenever I install a rom, it gets stuck in boot loops or I lose my wifi
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What firmware, bootloader, version are you on?
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How do I find out those? I'm very new to this stuff.
mikeyjay199215 said:
How do I find out those? I'm very new to this stuff.
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Click to collapse
Let's start wit going into settings, more, about device. What are the last three characters of you build number?
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NC1
mikeyjay199215 said:
NC1
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Click to collapse
Do you have an i337m?
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1337U
mikeyjay199215 said:
1337U
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Click to collapse
I'm not familiar with the i337u but I'm guessing it's a Canadian variant and the bootloader is unlocked. If so root it with this
http://forum.xda-developers.com/showthread.php?p=41791701
Then download twrp manager from the play store and install twrp
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It's at&t
mikeyjay199215 said:
It's at&t
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Click to collapse
Do you have a custom recovery on it now? Which one?
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Safestrap.
Ok, I'm sorry, I'm with you now. After flashing a rom you need to flash the nc1 module to get Wi-Fi working. See the third post of this, the first spoiler.http://forum.xda-developers.com/showthread.php?p=53758227 Download the nc1 module and flash that in safestrap
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Which roms am I able to use?
mikeyjay199215 said:
Which roms am I able to use?
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Click to collapse
See in the link I gave you. You can use any of the 4.4.4 roms.
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I can't use any of the custom ones. It says for nj4 only
mikeyjay199215 said:
I can't use any of the custom ones. It says for nj4 only
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Click to collapse
They'll work as long as you flash the nc1 module after flashing the rom
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Which one do you recommend?
This is still me. I'm on my laptop now so this is the account for the laptop. I was on my phone earlier. Anyways, flashing the modules didn't fix the wifi.
MikeyJay1992 said:
This is still me. I'm on my laptop now so this is the account for the laptop. I was on my phone earlier. Anyways, flashing the modules didn't fix the wifi.
Click to expand...
Click to collapse
I'm not sure then
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Alright. Thanks for trying to help. Guess I'm screwed :/

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