Root/Flash Question - Galaxy S III Q&A, Help & Troubleshooting

I installed the official JB update on my I9300 using Odin. My question is can I root and flash a custom rom over it???

Yeah you can dude, just root as normal like with ICS
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vm2034 said:
I installed the official JB update on my I9300 using Odin. My question is can I root and flash a custom rom over it???
Click to expand...
Click to collapse
The best way is to root, total wipe, then flash custom ROM and not flash over the stock ROM!

Related

questions on rooting and firmwares

say I'm using a ALF6 fw on my phone with CF root, am I able to flash a rom based on other firmwares? or do i have to flash to official FW and root and have it flash to the rom?
tyrtok said:
say I'm using a ALF6 fw on my phone with CF root, am I able to flash a rom based on other firmwares? or do i have to flash to official FW and root and have it flash to the rom?
Click to expand...
Click to collapse
You can flash any rom on top of your current setup unless mentioned otherwise in rom installation instructions
if it says "[ROM][XXBLG1][12Jul][V1.6] WanamLite Smooth,Stable & Battery Friendly" do i need to have XXBLG1 firmware or it means it is based on XXBLG1 firmware or any other FW unless stated otherwise?
You will just have that modem when you flash. If the modem isn't good for you u can flash another
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Thank watsa he answered your question mate. It is fine.
Sent from my GT-I9300 using xda premium
thanks!

[Q] Updating to a Jelly Bean Custom Rom

Hi there!
I am wanting to update my Samsung Galaxy GT-i9300 but am worried about the process because of having installed a custom kernel previously (would this muck up installing a new custom rom I wonder..)
Please find attached a screenshot of the settings and please tell me what I should do (if anything needs done) before I flash a new custom rom.
Cheers!
if you're worried about kernels, then just flash stock kernel then flash a custom rom on it.
mputtr said:
if you're worried about kernels, then just flash stock kernel then flash a custom rom on it.
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Click to collapse
kk, could you provide me with a suitable stock kernel (or links to one) which will be compatible with the rom I have installed?
any stock kernel that is for jb will be fine.
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mputtr said:
any stock kernel that is for jb will be fine.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
I am on android version 4.0.4 (so technically not JellyBean). and its safe to flash a stock kernel for JB despite being on that version before I flash a custom rom?
Sorry for asking, get confused easily..
you should be fine updating with a custom kernel (as all roms flash a kernel as well). Just make sure you factory reset when moving from ics to JB as you will most likely encounter problems if you don't.
Sent from my GT-I9300 using Tapatalk 2
Asimo2012 said:
I am on android version 4.0.4 (so technically not JellyBean). and its safe to flash a stock kernel for JB despite being on that version before I flash a custom rom?
Sorry for asking, get confused easily..
Click to expand...
Click to collapse
I would suggest flashing ICS stock kernel first if you're worried. I thought you were already on jb.
Sent from my GT-I9300 using xda app-developers app
Easy
Reflash the stock ics ROM
And flash any custom ROM you want
Enjoy
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[Q] Stock 4.1.2 JB - how to root and install custom rom?

Hi
I'm have "[I9100][ROM 4.1.2] Stock 4.1.2 JB - real deal" installed to my device now. But I want to get back to custom roms.
Is it possible to root this and flash CWM using Odin? Or do I need first to flash stock ICS/GB using Odin?
Moije said:
Hi
I'm have "[I9100][ROM 4.1.2] Stock 4.1.2 JB - real deal" installed to my device now. But I want to get back to custom roms.
Is it possible to root this and flash CWM using Odin? Or do I need first to flash stock ICS/GB using Odin?
Click to expand...
Click to collapse
IMHO it would be better to dwngrade to ICS 4.0.3, then root ur phone and install custom JB rom of ur choice
Moije said:
Hi
I'm have "[I9100][ROM 4.1.2] Stock 4.1.2 JB - real deal" installed to my device now. But I want to get back to custom roms.
Is it possible to root this and flash CWM using Odin? Or do I need first to flash stock ICS/GB using Odin?
Click to expand...
Click to collapse
You can root with philz no prob. Done that. No need to downgrade in my opinion. Then install anything you want. Need link for philz?
Sent from my GT-I9000 using Tapatalk 2
daxgirl said:
You can root with philz no prob. Done that. No need to downgrade in my opinion. Then install anything you want. Need link for philz?
Sent from my GT-I9000 using Tapatalk 2
Click to expand...
Click to collapse
I guess I can find link to philz myself. But if you have time and to be on safe side please could provide the link?
Many thanks :good:
Here you go:
Tar file: http://www.mediafire.com/?9h49e35fbc1py15
Zip file: http://www.mediafire.com/?6mjg46ocf6srv30
Sent from my GT-I9100 and press thanks if i helped you!
kona144 said:
Here you go:
Tar file: http://www.mediafire.com/?9h49e35fbc1py15
Zip file: http://www.mediafire.com/?6mjg46ocf6srv30
Sent from my GT-I9100 and press thanks if i helped you!
Click to expand...
Click to collapse
If flashing this, would i be safe in brick bug?
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[Q] How to unroot 2.3.3 or upgrade to ics without odin

help...
Mobile odin?
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ibenic said:
help...
Click to expand...
Click to collapse
You also can't install Stock ROMs with stock recovery, neither with CWM...
You'll need Odin.
Mobile ODIN is the only choice...
Also were you referring to stock ICS or Custom ROMs???
If its custom ROMs then you can directly flash using CWM...
But If stock one then you need Odin....else use kies to update..
Press thanx if i Helped..:good:

4.2.2 Sammobile root for S3?

Anyone have tried?
I'm currently on 4.1.2 Rooted ChainFire
I just wonder if it is possible to flash the 4.2.2 stock ROM from sammobile with CWM?
Which means
i can keep the root while updated to 4.2.2
Because AFAIK, flash via ODIN will remove the root itself.
any respondse will be appreciated
Thanks in advance
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all the ROMs on sammobile are Odin-flashable.
It doesn't matter what you flash it with - if the ROM is not rooted, then you'll lose root.
Get a pre-rooted 4.2.2 from the dev section
Glebun said:
all the ROMs on sammobile are Odin-flashable.
It doesn't matter what you flash it with - if the ROM is not rooted, then you'll lose root.
Get a pre-rooted 4.2.2 from the dev section
Click to expand...
Click to collapse
The only way to do is with odin for mobile
what? no
No you can't
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You have two options, flash with PC Odin, then root with CF Auto root, and flash CWM via rom manager.
Or you can flash with mobile Odin, don't flash recovery.img and check the everroot option this will keep root and custom recovery.

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