[q] help! How do i go back to my stock kernel - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

I installed a kernel but there's a wifi bug and i don't know how to fix it. I made a backup before, but when i restore it, it doesn't go BACK!
i have i337M (4.4.2)
Someone please help me ..

I haven't personally tried this on the s4 but it should work. Grab the 4.4.2 factory tar file, rename it without the.md5, and extract it. Inside you should find a boot.img. Put that on your device and flash it with flashify from the play store.
Sent from my Nexus 5

Thanks! I will try it when I finish downloading the File from SamMobile.
Just to Clarify:
I need to remove the .md5 from the name? So just .tar? and then extract and put the boot.img on my sd and install flashify and flash from there? And my kernel will be back to stock?
If I wanted to unroot, would i just flash the .tar file through Odin? That would remove TWRP, root and custom kernel, am i correct?
Thanks.

the0nly0ne- said:
Thanks! I will try it when I finish downloading the File from SamMobile.
Just to Clarify:
I need to remove the .md5 from the name? So just .tar? and then extract and put the boot.img on my sd and install flashify and flash from there? And my kernel will be back to stock?
If I wanted to unroot, would i just flash the .tar file through Odin? That would remove TWRP, root and custom kernel, am i correct?
Thanks.
Click to expand...
Click to collapse
You made it easy to answer your questions. It's yes to all of them
Sent from my Nexus 5

Related

STOCK recovery for P3100 ICS.

I tried looking around, but couldn't find the stock recovery for the P3100. It's available only for the P3113. Could someone with the stock tab upload the recovery here, please? To flash via Odin, obviously.
Thanks!
PS if a thread like this already exists, please link me to it and then delete this thread!
Sent from my Desire HD
You can download from samfirmware a full rom for p3100 ,extract it with winrar ,and inside you'll fin stock recovery.img.If the extension of the rom it's .tar.md5 ,just remove .md5 form extension,and you'll be able to extract it with winrar without a problem.Cheers!
If you have the stock kernel (boot.img) and stock ROM (fully stock, no files deleted), stock recovery should flash itself back to your phone every time the device boots up.
No, I don't, which is why I wanted the recovery!
Sent from my GT-P3100
athiskir said:
No, I don't, which is why I wanted the recovery!
Sent from my GT-P3100
Click to expand...
Click to collapse
I can also use mobile ODIN free or PAID and flash only the stock recovery, if that what you want.
viasat said:
You can download from samfirmware a full rom for p3100 ,extract it with winrar ,and inside you'll fin stock recovery.img.If the extension of the rom it's .tar.md5 ,just remove .md5 form extension,and you'll be able to extract it with winrar without a problem.Cheers!
Click to expand...
Click to collapse
Hi, im neew here.
I got the recovery.img from sammobile, what can i do to remove cwm?? i have to install this or move it to my android?
After rooting the official rom,I'm always removing cwm recovery by flashing official recovery.img using Mobile Odin.I you don't want to buy Mobile Odin Pro from Play,you can use the free version from here http://forum.xda-developers.com/showthread.php?t=1347899
Cheers!

N910W8 Custom Recovery?

Hi Everyone,
The Note 4 is my first Android phone and I've been doing a lot of reading the last two hours.
I want to install CyanogenMod because I hate the TouchWiz look. So I discovered I need to root my phone and install a custom recovery. I've rooted my phone successfully but I cannot find the Note 4 listed on the CWM website.
So how do I install a custom recovery on Note 4 N910W8?
TWRP http://teamw.in/project/twrp2/266
Thanks for the link!
Do you happen to have install instructions?
I see a .img, .tar, and a .zip file.
What do I do with them? My first guess was to download the .tar file and use it in Odin with the PDA button (like when I rooted with CF), but selecting the file crashes Odin so I assume that is incorrect.
MeitanteiJesus said:
Thanks for the link!
Do you happen to have install instructions?
I see a .img, .tar, and a .zip file.
What do I do with them? My first guess was to download the .tar file and use it in Odin with the PDA button (like when I rooted with CF), but selecting the file crashes Odin so I assume that is incorrect.
Click to expand...
Click to collapse
I downloaded the IMG file one and then I installed the Flashify app from the Google play store and used that to install the IMG recovery.

Stock Recovery

Can anyone give me the stock recovery for N900 4.4.2 please? My phone is rooted but used fake system stauts in wanam xpose. I can download OTA upgrade but failed to install the update. So i guess it must be bcoz of CWM. Thank you so much in advance.
satslu said:
Can anyone give me the stock recovery for N900 4.4.2 please? My phone is rooted but used fake system stauts in wanam xpose. I can download OTA upgrade but failed to install the update. So i guess it must be bcoz of CWM. Thank you so much in advance.
Click to expand...
Click to collapse
I have the same problem before. And I have flash the stock firmware via Odin. No data will be lost.
If you are going to flash the stock recovery, you'd better flash the stock firmware
You can also download the stock firmware and extract the stock recovery yourself.
Install Phone INFO ★Samsung★ app > Menu > 'Firmware Browser' to find and download the stock firmware for your device.
vndnguyen said:
You can also download the stock firmware and extract the stock recovery yourself.
Install Phone INFO ★Samsung★ app > Menu > 'Firmware Browser' to find and download the stock firmware for your device.
Click to expand...
Click to collapse
Oh.really. I didnt realize it at all. Current firmware is the one that I downloaded and flashed it from odin. Can u guide me how to extract and flash it bcoz I am afraid I will have bootloop or brick.?
Yes I know your application and this is a must have for SAMSUNG.? I wait for you before i proceed anything.
The firmware file is a TAR archive and you can extract it with WinRAR.
You will get recovery.img file and it can be flash via Odin.
But it's easier if you flash full stock firmware. No data will be lost.
vndnguyen said:
The firmware file is a TAR archive and you can extract it with WinRAR.
You will get recovery.img file and it can be flash via Odin.
But it's easier if you flash full stock firmware. No data will be lost.
Click to expand...
Click to collapse
Do i need to repack recovery.img into tar.md5? I can add recovery.img into zip archive and then rename into tar.md5? is it a right method? I have modified something in system folder which i have to flash through CWM. So after i flash stock firmware, im not going to lose my data but my modification will be lost.
I hope u understand my problem.
satslu said:
Do i need to repack recovery.img into tar.md5? I can add recovery.img into zip archive and then rename into tar.md5? is it a right method? I have modified something in system folder which i have to flash through CWM. So after i flash stock firmware, im not going to lose my data but my modification will be lost.
I hope u understand my problem.
Click to expand...
Click to collapse
Ok here is some stock recovery for your convenience: http://forum.xda-developers.com/showthread.php?p=50322367#post50322367
If you want to make your own TAR, here is a tool: http://forum.xda-developers.com/showpost.php?p=42393470&postcount=2
Wow..thank you so much. I keep looking for them until it gave me headache.

how to flash my original 5.1.1 kernel ?

HI everybody
I updated my n910H to 5.1.1 , worked well and decided to flash a custom kernel . also faced to problem with wifi and now i decided to flash my original kernel.
i extracted the boot.img from update package N910HXXU1COH4_N910HOLB1COH4_N910HXXU1COH3_HOME.tar
now, im not sure how to flash it !! via odin or anything else needed
thank u for your help
any help ?????
when I had my S3 if I needed the stock kernel I would simply reflash the stock rom since they usually have the stock kernels built-in
Sent from my SM-N910H using Tapatalk
i dont want to reset my phone , i just want to flash the original kernel
mehdi.moha said:
i dont want to reset my phone , i just want to flash the original kernel
Click to expand...
Click to collapse
Never tried with samsung phones (and probably it is not possible) but with my other android devices I just extract the boot.img from the ROM and flash it with fastboot using the command "fastboot flash boot boot.img".
With a samsung device you should probably (or definitely) create a flashable .zip file with the boot.img of your stock ROM and flash it via recovery.
You need to download your original kernel from net, there are 2 types of file you’ll find, one is .zip and another one is .tar. If you download .zip file you have to flash it with recovery (CWM/TWRP) or if you download .tar file (don't try to make your own .tar file) then you can flash it with Odin tool.

How do I restore stock kernel to my Canadian S5

I've been using a custom kernel on my G900W8 but I'm getting a lot of performance issues, so I want to go back to stock.
I do have a file I extracted called boot.img which I believe is the kernel. How do I restore it?
harry_fine said:
I've been using a custom kernel on my G900W8 but I'm getting a lot of performance issues, so I want to go back to stock.
I do have a file I extracted called boot.img which I believe is the kernel. How do I restore it?
Click to expand...
Click to collapse
Wait until you get an expert opinion. I was looking here and there for threads to extract and flash the stock kernel but ended up bricking my device. (No recovery, No bootup, THANK GOD I could access download mode).
I extracted the boot.img but didn't know how to flash it. There was a thread, a script that could turn .img to .tar.md5. I did that and flashed the file through Odin and boom. Stuck at bootlogo. So I try to restore the nandroid backup, but recovery keeps bootlooping.
Had to install stock rom completely through Odin...But it still isn't booting up.
User @nickpatel130285 has shared stock kernel for G900F in this post.
I flashed using that zip file and it worked like charm. So what you can do is replace the boot.img in that zip file with the one which is compatible with your variant and leave the rest as it is. Repack and Flash.
It should work but just in case if you mess things up you'll need to flash stock rom using Odin. So make sure you make a nandroid backup and have a copy on your PC (safely).
Flash at your own risk.

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