samsung s3 i9300 - root, unlock bl, recovery and rom - Galaxy S III Q&A, Help & Troubleshooting

hello everyone just looking advice on the above title and which order should they be done? i have tryed doing all of these apart from the rom but had no success getting bit frustrated with it at the moment, im currently on 4.3 build number JSS15J.I9300XXUGNA5, im in uk and on o2 network thank you for your time

clocker-droid said:
hello everyone just looking advice on the above title and which order should they be done? i have tryed doing all of these apart from the rom but had no success getting bit frustrated with it at the moment, im currently on 4.3 build number JSS15J.I9300XXUGNA5, im in uk and on o2 network thank you for your time
Click to expand...
Click to collapse
S3 has already unlocked bootloader from default. You just need to root your device, flash a recovery and flash a ROM through recovery. Easy

GeekyDroid said:
S3 has already unlocked bootloader from default. You just need to root your device, flash a recovery and flash a ROM through recovery. Easy
Click to expand...
Click to collapse
no problem whats the best way to root and flash recovery i want to do this properly so i dont run into any problems thank you for the quick reply

Read the sticky thread in general forum.

Related

[Q] Stacked in Recovery Mode

Hi Guys,
I hope I've posted in the right place. I am basically noob in installing custom firmware and I wanted to try it anyway with no experience.
Bootloader unlocking successful.
I flashed recovery-nozomi.img using cmd commands without realizing that I didn't have the custom rom saved in my xperia s. So I am stock in recovery mode with no idea what to do next even just to go back in normal mode. Please help I am really a newbie in installing custom ROM. Any process with be gladly appreciated since I just want to go back to normal mode if I can't install any custom ROM.
Build no.75 that's all I remember about my phone since I just bought this yesterday.
I'm in the Philippines and this a generic version if that helps.
Any help will be gladly appreciated or will even give a donation.
Thanks in advance guys!
Regards!
Flashtool.
K900 said:
Flashtool.
Click to expand...
Click to collapse
Hello K900 yes I can still use flashtool but I'm not really sure which firmware to use and what is the right process to do it. Please help!
xreyan said:
Hello K900 yes I can still use flashtool but I'm not really sure which firmware to use and what is the right process to do it. Please help!
Click to expand...
Click to collapse
Use the TW .76.

How to unlock sim after installing official 4.12 german jellybean plz help

Hey guys I just upgraded from gingerbread to official german 4.12 jellybean
I9100XWLSD_I9100XXLS8_I9100DBTLS7_HOME.tar.md5
via odin.
The installation went fine but now the phone got sim locked and it asks for a network code. I saw a couple of Galaxy S sim unlock apps on the playstore but none of them work (except for the one which has the [root] prefix in it which I haven't tried since the phone isn't rooted). So I was wondering how can I unlock it? Thx in advance guys
celahudini said:
Hey guys I just upgraded from gingerbread to official german 4.12 jellybean
I9100XWLSD_I9100XXLS8_I9100DBTLS7_HOME.tar.md5
via odin.
The installation went fine but now the phone got sim locked and it asks for a network code. I saw a couple of Galaxy S sim unlock apps on the playstore but none of them work (except for the one which has the [root] prefix in it which I haven't tried since the phone isn't rooted). So I was wondering how can I unlock it? Thx in advance guys
Click to expand...
Click to collapse
afaik you need root to unlock it.
It's rooting time.
Ok but what method should I use? There seem to be so many around I'm getting kinda confused. As far as I can tell the custom kernel method seems to be the easiest way to get it right? And how do I know which kernel should I use?
celahudini said:
Ok but what method should I use? There seem to be so many around I'm getting kinda confused. As far as I can tell the custom kernel method seems to be the easiest way to get it right? And how do I know which kernel should I use?
Click to expand...
Click to collapse
Look in the faq
Verstuurd van mijn GT-I9100
celahudini said:
Well actually it's not my phone, it's from my little brother and I upgraded it remotely with teamviewer. I've rooted my own gt-i9305 with a prerooted rom with odin so is there something like that for the s2, and if there isn't what's the easiest way to get root on the s2 and what should I do after that?
Click to expand...
Click to collapse
If you don't root it, you won't unlock it and well, he's not gonna be able to use it as a phone.
Flash a custom kernel or flash cwm + su + busybox
gastonw said:
If you don't root it, you won't unlock it and well, he's not gonna be able to use it as a phone.
Flash a custom kernel or flash cwm + su + busybox
Click to expand...
Click to collapse
Yeah I figured I pretty much have to root it now to get anywhere but wasn't sure if that's all I have to do or will there be something else.
Christiaan91 said:
Look in the faq
Verstuurd van mijn GT-I9100
Click to expand...
Click to collapse
I did before i started the thread but the thing called CF-Root seems to have Clockworkmod 5.xx and I read in another thread
http://forum.xda-developers.com/showthread.php?t=1746794
that the phone can get superbricked with cwm 5.xx
and that's where I got totally lost on what method should I use
celahudini said:
Yeah I figured I pretty much have to root it now to get anywhere but wasn't sure if that's all I have to do or will there be something else.
I did before i started the thread but the thing called CF-Root seems to have Clockworkmod 5.xx and I read in another thread
http://forum.xda-developers.com/showthread.php?t=1746794
that the phone can get superbricked with cwm 5.xx
and that's where I got totally lost on what method should I use
Click to expand...
Click to collapse
That thread is from july 2012, jb rolled out on january officially.

[Q] Can i use Cyanogenmod Installer to install custom roms other than cyanogenmod ?

As the title says, I am asking whether i can use cyanogenmod installer via play store to unlock bootloader. I have stock rom and I want to install 4.4 roms and i got sick of waiting for samsung to release an update. So i am asking if I used cyanogenmod installer to unlock the device and then unroot by myself. After then can i install other custom roms just by flashing them? Is this a safe course to follow or do you suggest it would be better to follow one of the guides that shows how to install custom roms on S3 from start(stock rom)?
tailsmp said:
As the title says, I am asking whether i can use cyanogenmod installer via play store to unlock bootloader. I have stock rom and I want to install 4.4 roms and i got sick of waiting for samsung to release an update. So i am asking if I used cyanogenmod installer to unlock the device and then unroot by myself. After then can i install other custom roms just by flashing them? Is this a safe course to follow or do you suggest it would be better to follow one of the guides that shows how to install custom roms on S3 from start(stock rom)?
Click to expand...
Click to collapse
Nobody has any answer? or even the slightest idea?
tailsmp said:
Nobody has any answer? or even the slightest idea?
Click to expand...
Click to collapse
You say unlock bootloader ??
So what phone have you this is I9300 forum your statement suggests you do not have this phone .
NEWS
http://www.xda-developers.com/
JJEgan said:
You say unlock bootloader ??
So what phone have you this is I9300 forum your statement suggests you do not have this phone .
NEWS
http://www.xda-developers.com/
Click to expand...
Click to collapse
sorry, at the time i didn't know i9300 has already comes with unlocked bootloader
tailsmp said:
sorry, at the time i didn't know i9300 has already comes with unlocked bootloader
Click to expand...
Click to collapse
If u only wan to unlock ur boot loader which u dun even nid, ur title is mis leading.
Sent from my GT-I9300 using xda app-developers app
Give a thank if I helped you
You can use Rom Manager or Rom Toolbox to flashing roms
k2evil said:
You can use Rom Manager or Rom Toolbox to flashing roms
Click to expand...
Click to collapse
Its btr to flash it urself than using those apps.
Sent from my GT-I9300 using xda app-developers app
Give a thank if I helped you

head explosion

hi friends, ive been romming htcs for a while now and decided to move to experia z2, ive spent nearly a week trying to rom the z2 but with no sucsess, i am on build 402, i have noticed it says in the service menu unlock bootloader NO, any help and i would be very gratefull. thanks
marcustandy said:
hi friends, ive been romming htcs for a while now and decided to move to experia z2, ive spent nearly a week trying to rom the z2 but with no sucsess, i am on build 402, i have noticed it says in the service menu unlock bootloader NO, any help and i would be very gratefull. thanks
Click to expand...
Click to collapse
You can only flash stock based ROMs with a locked bootloader.
If you wanted to flash custom ROMs or kernels, you needed to buy a SIM Free, carrier free phone.
There is no way to unlock your bootloader.
thanks for the reply, i dont mind a stock based rom but i cant even get root
marcustandy said:
thanks for the reply, i dont mind a stock based rom but i cant even get root
Click to expand...
Click to collapse
You can easily get root without an unlocked bootloader.
http://forum.xda-developers.com/showthread.php?t=2559009
When I saw the thread title, I thought 'The Mountain' had joined xda.
i cant unlock the bootloader because of my carrier
marcustandy said:
i cant unlock the bootloader because of my carrier
Click to expand...
Click to collapse
To root you don't need an unlocked bootloader.... read my post again.
Here you go m8 read this http://forum.xda-developers.com/showthread.php?t=2775411 :good:

Can I get stock Marshmallow on Moto E UK?

As title really, can't really find a definitive answer.
It was a UK Tesco handset but unlocked to all, and still running the standard Moto stock firmware.
Any help would be appreciated.
Regards
junglebungle said:
As title really, can't really find a definitive answer.
It was a UK Tesco handset but unlocked to all, and still running the standard Moto stock firmware.
Any help would be appreciated.
Regards
Click to expand...
Click to collapse
not sure about tesco but i got marshmallow on my xt1524 a few weeks back and i bought retail from argos so im guessing there will be an update for u
chandyy said:
not sure about tesco but i got marshmallow on my xt1524 a few weeks back and i bought retail from argos so im guessing there will be an update for u
Click to expand...
Click to collapse
I just found this post: http://forum.xda-developers.com/showpost.php?p=66479281&postcount=113
Can I download that and just install it without rooting/custom recovery?
Regards
junglebungle said:
I just found this post: http://forum.xda-developers.com/showpost.php?p=66479281&postcount=113
Can I download that and just install it without rooting/custom recovery?
Regards
Click to expand...
Click to collapse
Hmm I'm not sure sorry... for me I installed custom recovery relatively easily so I'd do that tbh
chandyy said:
Hmm I'm not sure sorry... for me I installed custom recovery relatively easily so I'd do that tbh
Click to expand...
Click to collapse
I need to unlock bootloader and root for that though don't I? I don't want to root as I use banking apps/Sky Go and I will lose those.
junglebungle said:
I need to unlock bootloader and root for that though don't I? I don't want to root as I use banking apps/Sky Go and I will lose those.
Click to expand...
Click to collapse
You can unlock bootloader, install TWRP and install 6.0 stock rom without rooting.
chandyy said:
You can unlock bootloader, install TWRP and install 6.0 stock rom without rooting.
Click to expand...
Click to collapse
Thanks for the help man! I'll try this now.

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