[Q] Flashing back to dualboot original ROM and Custom using Siyah - Galaxy S III Q&A, Help & Troubleshooting

Hi, I'm unsure of how to tackle this.
I've flashed my way from stock rom and lost the backup somehow. Therefore I intend to download the original firmware package from Sammobile or Kies. The thing is; I want to continue using my Custom firmware as primary ROM and have the original one as secondary ROM. This is hopefully possible through Siyah Kernel and tools. Although, I'm not sure if flashing the original ROM will tamper with my kernel. Is it safe to do it this way? Is it even possible? And what will happen if i get an OTA update after a successful flash of the original ROM?
It's important for me to dual boot, but the custom ROM I have doesn't have great image processing from the camera, so... I want the original as backup.
Thanks in advance.

erfah said:
Hi, I'm unsure of how to tackle this.
I've flashed my way from stock rom and lost the backup somehow. Therefore I intend to download the original firmware package from Sammobile or Kies. The thing is; I want to continue using my Custom firmware as primary ROM and have the original one as secondary ROM. This is hopefully possible through Siyah Kernel and tools. Although, I'm not sure if flashing the original ROM will tamper with my kernel. Is it safe to do it this way? Is it even possible? And what will happen if i get an OTA update after a successful flash of the original ROM?
It's important for me to dual boot, but the custom ROM I have doesn't have great image processing from the camera, so... I want the original as backup.
Thanks in advance.
Click to expand...
Click to collapse
Swap your own rom from secondrom utility's.
Than install the stock rom via Odin
And swap back your own custom rom to be the first rom.
Because you use a custom recovery you don't get any ota updates.
After flashing Install siyah Kernel back.
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Related

[Q] Stock kernel for p500????

Heya
I want to flash my p500 kernel so I can OC and to fix that annoying touchscreen lag thinngy. My phone's still under guarantee though (I've rooted, but they don't know that). If I wana send my phone in to my SP for some reason, I'll need flash the stock kernel first, then unroot. I've soured the wastes, but nary could I find a p500 stock kernel.
Would someone be able to point me to one?? I'd be super happy, thank you in advance ^_^
doing with kdz, only 15minute..
and u get brand new phone, without root, without custom recovery, and brand new frimware... just download fimeware.kdz and install via kdz.
thx
cupliz said:
doing with kdz, only 15minute..
and u get brand new phone, without root, without custom recovery, and brand new frimware... just download fimeware.kdz and install via kdz.
thx
Click to expand...
Click to collapse
Thanx for your super quick response!! I don't want to flash the firmware though, I already flashed VOID once which didn't turn out too good I just want to flash the kernel
If you could tell me where to find one that would be awesome!!
antiother said:
Thanx for your super quick response!! I don't want to flash the firmware though, I already flashed VOID once which didn't turn out too good I just want to flash the kernel
If you could tell me where to find one that would be awesome!!
Click to expand...
Click to collapse
U sound confused bro. In short, if u ever need to go to the service center just flash the original lg firmware with kdz. U get everything back to stock. stock rom,kernel,unroot
If u are looking for only the LG kernel. Im not sure but it involves the bootimg file and other technical details. U will have to ask the devs
You can't get the stock kernel if you don't flash stock rom with KDZ Updater.
P.S : WHY YOU WANT TO FLASH THE STOCK KERNEL ?
Sent from my LG-P500 using XDA Premium App
Standalone stock rom kernel is not available. You can:
a. Restore your stock rom nand backup, or
b. Search the general thread, a stock rom nand backup has been posted, or
c. Flash stock firmware using kdz.

Root and flashing questions from a beginner

Hi all. I am very familiar to android but this will be the first device I root and flash. I'm with bell mobility. I've been doing a lot of reading here lately and want to root and for now keep stock rom. I want to try ktoon kernel as well but haven't made up my mind about that.
I have some questions I need help with before I take any of this on. I understand that in order to flash a custom kernel I need to use cwm and I'm comfortable rooting and installing cwm. I want to be able to go to complete stock if I need to. My question is about getting that back. If I flash cwm but want to go back to 3e recovery will this work by simply flashing the bell stock rom previously posted by adamlange? Also I understand the custom kernel has modified wifi and bt drivers. If I flash the stock rom will this flash the stock kernel back as well. If not how do I flash the stock kernel through Odin? Will this stock kernel contain the drivers I need for wifi and bt? What are the main benefits of custom kernels? Is there any way to flash the custom kernel through Odin if I don't want to install cwm without tripping the counter?
I thank everyone in advance for helping me.
Sent from my HTC One S using xda app-developers app

HELP installing custom rom please

Hey all.
After reading about the brickbug and failing the eMMC test, im a little confused as to the safest way to root and install a custom rom.
I am currently runnning ICS 4.0.3 with I9100TDULPB kernel on an aussie vodafone branded device.
Do i simply use odin to flash a stock samsung JB ROM, then flash Philz or Siyah JB kernel for root+cwm, then custom rom install via cwm?
I would also like to retain the option of flashing my carrier stock image incase of warranty purposes.
Cheers
Do i simply use odin to flash a stock samsung JB ROM, then flash Philz or Siyah JB kernel for root+cwm, then custom rom install via cwm?
Click to expand...
Click to collapse
Exactly !
PD: Remember to follow the installation instructions on the rom thread, otherwise u'll end in nasty bootloops
Thanks for the quick reply
So this will ultimately allow me to odin flash back to the stock ICS Vodafone Branded ROM later down the track?
Cheers.
strokemesilly said:
Thanks for the quick reply
So this will ultimately allow me to odin flash back to the stock ICS Vodafone Branded ROM later down the track?
Cheers.
Click to expand...
Click to collapse
yes, whenever u want to go back to complete stock, u just download ur stock firmware and flash it through odin
Awseome!
Thanks Poroto

[Q] Flash stock firmware as second ROM

As title says, is it possible to flash stock firmware(just firmware, not kernel or modem) as second rom, using Siyah kernel and CWM?
Which way, please?
Thank you!
P.S.: I just have dual boot with Sammy as second ROM, I have to update it...
The dualboot guide is in the Siyah thread
As I said, I just have dualboot. I need to flash an updated kernel to second rom, but I don't have a CWM package.
How to create it?
you want to flash a .tar firmware to the second rom?
swap ROMs, flash via odin, swap back.
But FYI, flashing ELLA will change your bootloader permanently and you probably won't be able to use triangle away
gpvecchi said:
As I said, I just have dualboot. I need to flash an updated kernel to second rom, but I don't have a CWM package.
How to create it?
Click to expand...
Click to collapse
Download a stockrom from Wanam thy are cwm package and can be flash tro second rom utilities in Stweaks.
http://forum.xda-developers.com/showthread.php?p=27255513
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do I need to flash a appropriate kernel before flashing a rom

I see a lot of ROMS posted list kernels other than mine (NC2). Do I need to flash those kernels prior to flashing those roms or not?
Also, If I want to go back to a NC2 roms will I night to flash that kernel back?
I am confused, please lmk. Thanks!
panxpany said:
I see a lot of ROMS posted list kernels other than mine (NC2). Do I need to flash those kernels prior to flashing those roms or not?
Also, If I want to go back to a NC2 roms will I night to flash that kernel back?
I am confused, please lmk. Thanks!
Click to expand...
Click to collapse
No need to flash kernal.
But, If your developer of Rom said that custom Kernal is required then you should flash custom kernal....
For backing to stock rom you need SP TOOLS (Smart phone tool) & Scatter file.
Every custom Rom does have its own kernel included which works perfectly with it. You don't need to flash any kernel. Just if you want to change the kernel you can change it afterwards. If you want to go back to your rom you have had before, just backup your system folder with twrp for example recovery and then you can restore it back. Hope that helped.

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