[Q] Unlocking O2 s3 bootloader - Galaxy S III Q&A, Help & Troubleshooting

Hello friends
I have just sim-unlocked my galaxy s3 from O2 UK .
I tried searching a lot but couldn't find a thread which would guide me to unlock the bootloader of my S3 .
Now when i have unlocked from O2 carrier , can i unlock the bootloader ?
Waiting for your replies.
Thankyou.

As far as I know O2 hasn't locked the bootloader for the S3, only AT&T did that across the pond.
Sent from my GT-I9300 using Tapatalk 4 Beta just to annoy Gus

delsus said:
As far as I know O2 hasn't locked the bootloader for the S3, only AT&T did that across the pond.
Sent from my GT-I9300 using Tapatalk 4 Beta just to annoy Gus
Click to expand...
Click to collapse
thanks for replying, but is there any procedure to know wether unlocking the bootloader is allowed or not ?

It shouldn't be locked in the first place, try to root if that works it's not locked. (as usual rooting will void your warranty.)
Sent from my GT-I9300 using Tapatalk 4 Beta just to annoy Gus

delsus said:
It shouldn't be locked in the first place, try to root if that works it's not locked. (as usual rooting will void your warranty.)
Sent from my GT-I9300 using Tapatalk 4 Beta just to annoy Gus
Click to expand...
Click to collapse
sorry to ask , but is it necessary to root the phone before unlocking the bootloader ?

There is no lock on the boot loader. It is unlocked by default. Only Verizon over here in the states locked the boot loader by default. Not AT&T, Delsus
Meaning don't worry about the boot loader. How hard is it to understand that?
Sent from my GT-I9300 using xda premium

b-eock said:
There is no lock on the boot loader. It is unlocked by default. Only Verizon over here in the states locked the boot loader by default. Not AT&T, Delsus
Meaning don't worry about the boot loader. How hard is it to understand that?
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
Easy to understand bro , but i was scared about getting my phone bricked

b-eock said:
There is no lock on the boot loader. It is unlocked by default. Only Verizon over here in the states locked the boot loader by default. Not AT&T, Delsus
Meaning don't worry about the boot loader. How hard is it to understand that?
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
My mistake I wasn't far off though
But yeah you do not need to unlock the bootloader it was unlocked when it rolled off the production line and will be forever unlocked.
Sent from my GT-I9300 using Tapatalk 4 Beta just to annoy Gus

General > sticky roll-up thread > understanding the basics before you root
Please read this before you do anything. Should contain everything you need to know.
Sent from my GT-I9300 using Tapatalk 4

Oh boy !!
I am confused now wether my phone is i9300 or i9305 .
How to identify it ?
All i know is that it is 4g version .
Help me with this please !!

npk21 said:
Oh boy !!
I am confused now wether my phone is i9300 or i9305 .
How to identify it ?
All i know is that it is 4g version .
Help me with this please !!
Click to expand...
Click to collapse
Th "4g" international version is the i9305.
You can go to settings > about phone.
There's also a massive black screen when you first turn on the phone with the model number on it

npk21 said:
Oh boy !!
I am confused now wether my phone is i9300 or i9305 .
How to identify it ?
All i know is that it is 4g version .
Help me with this please !!
Click to expand...
Click to collapse
If it's LTE then it's 19305
I strongly advise you to read the guides before going any further

Its i9305
Hope i can root this device and use custom roms and kernels .
Can i root this device ?
Is there any custom rom and kernel available for i9305 ?

npk21 said:
Oh boy !!
I am confused now wether my phone is i9300 or i9305 .
How to identify it ?
All i know is that it is 4g version .
Help me with this please !!
Click to expand...
Click to collapse
A the box it came in B the Product Code under the battery ,
C the guy who sold it to you .
I9300 = this forum
I9305 = I9305 Q&A

JJEgan said:
A the box it came in B the Product Code under the battery ,
C the guy who sold it to you .
I9300 = this forum
I9305 = I9305 Q&A
Click to expand...
Click to collapse
Can the moderator please move this thread to i9305 q&a ?

npk21 said:
Can the moderator please move this thread to i9305 q&a ?
Click to expand...
Click to collapse
No you need to ask them via the report button

rootSU said:
Th "4g" international version is the i9305.
You can go to settings > about phone.
There's also a massive black screen when you first turn on the phone with the model number on it
Click to expand...
Click to collapse
Stuck again
Did each and every step from this link
http://forum.xda-developers.com/showpost.php?p=32235061&postcount=1&nocache=1&z=6483257242944092
But when i tried to install Root_SuperSU.1.02-Busybox.1.21.0.zip frm cwm recovery . I got an error .
E. Failed to verify whole-file signature
E. Signature verification failed.
Please help me .

Have you used the /!\ button to report this thread yet? You need it moved to i9305 q&a.
If you're using stock recovery you will get this error. Means you missed a step because you haven't flashed custom recovery.
In custom recovery is an option to toggle off signature verification.
If you haven't reported your thread yet, please to so now
Sent from my GT-I9300 using Tapatalk 4

rootSU said:
Have you used the /!\ button to report this thread yet? You need it moved to i9305 q&a.
If you're using stock recovery you will get this error. Means you missed a step because you haven't flashed custom recovery.
In custom recovery is an option to toggle off signature verification.
If you haven't reported your thread yet, please to so now
Sent from my GT-I9300 using Tapatalk 4
Click to expand...
Click to collapse
Well i will report the thread now .
Coming to the topic . I have done all that work from the given above link . Now what should i do ? Please help .

I gave you the answer all ready. Once is enough
Sent from my GT-I9300 using Tapatalk 4

Related

help(i need safety and easy way to root i9300

I need to root galaxy s 3 i9300 ,to install GalaxSimUnlock.apk
to unlock i9300
I have z3x if you guys know how to use z3x to unlock it and show me if not please let me know how to root it and install GalaxSimUnlock
Then go to the i9300 forum and read how to do it.
Sent from my SCH-I535 using xda premium
xsteven77x said:
Then go to the i9300 forum and read how to do it.
Sent from my SCH-I535 using xda premium
Click to expand...
Click to collapse
You guys English is better than mine.If you help me how to do it is better thanks
You should find all you need here
http://forum.xda-developers.com/showthread.php?t=1695238
JJEgan said:
http://forum.xda-developers.com/showthread.php?t=1695238
Click to expand...
Click to collapse
The explain is very hard for me to understand .link by link take you far .
I want of you guys to set here for me these.
root files link and how to do it simply .
thnk you guys.
no spoonfeeding allowed!
Half the adventure of modding your device is learning and understanding how. If you don't understand something than you probably shouldn't do it. Read over and over again and if it helps use Google to get a better understanding.
Sent from my Galaxy Nexus using xda premium
Dylan Bay said:
The explain is very hard for me to understand .link by link take you far .
I want of you guys to set here for me these.
root files link and how to do it simply .
thnk you guys.
Click to expand...
Click to collapse
Fail to understand then don't proceed further you will brick your phone .
Nothing could be simpler than the link posted .
Link contains root files and simple instructions .
jje

Sgs3 sim card problem

I have a branded SGS3 Vodafone UK, I live in Belgium. My phone need to restart every twoo hours. It says No SIM Card
And network signal level is very low. Do I need to flash my phone with international version or what?
Sent from my GT-I9300 using xda premium
Help please...
Yes I also face similar type of problem but when i flash omega v35 rom ......There is no problem for me. .....
I think it was problem of rom. ....
So try to flash ur rom n use another rom or same but install it properly. .......
Hit thanks if it helps. .....
Sent from my GT-I9300 using xda premium
cukiwap said:
Help please...
Click to expand...
Click to collapse
Bumping is against the rules ..
You may have wrong modem or wrong CSC check your APN settings are correct .
Factory reset may help .
BASICS for free .
http://forum.xda-developers.com/showthread.php?t=1927113
jje
I have flashed with international version, full factory reset, wipe cash, but the problem is still here, the phone need to restart every hour or twoo hours.
Return it to Vodafone or Service Centre .
jje
I have flashed my phone, but not root, is my phone in warranty or not any more?
And is that hardware of software problem?
rockondudu said:
Yes I also face similar type of problem but when i flash omega v35 rom ......There is no problem for me. .....
I think it was problem of rom. ....
So try to flash ur rom n use another rom or same but install it properly. .......
Hit thanks if it helps. .....
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
how to flash omega?
Sent from my GT-I9300 using xda premium
I think it is to do with the country code. There is a way to change this but I just can't remember. Sorry
Sent from my Nexus 7 using xda app-developers app
Replaced sim card, problem solved. Thanks xda for your "Help"
Sent from my GT-I9300 using xda premium

[q] official [premium suit update for galaxy s iii in india

THE OFFICIAL PREMIUM SUIT UPDATE FOR GALAXY S III HAS BEEN LAUNCHED IN UK & SOME OTHER COUNTRIES. BUT INDIAN S III HAVE NOT RECEIVED ANY PREMIUM SUIT UPDATES. CAN ANY ONE PLEASE TELL ME WHEN THE UPDATE WILL COME?
MY S 3 IS RUNNING IS ON 4.1.1 (BASEBAND VERSION I9300DDDLJ1)
PREMIUM SUIT UPDATE PART 1:- http://www.youtube.com/watch?v=6aM7kQ7sCRE
PREMIUM SUIT UPDATE PART 2:- http://www.youtube.com/watch?v=o7SEBepku-4
sumouktick said:
THE OFFICIAL PREMIUM SUIT UPDATE FOR GALAXY S III HAS BEEN LAUNCHED IN UK & SOME OTHER COUNTRIES. BUT INDIAN S III HAVE NOT RECEIVED ANY PREMIUM SUIT UPDATES. CAN ANY ONE PLEASE TELL ME WHEN THE UPDATE WILL COME?
MY S 3 IS RUNNING IS ON 4.1.1 (BASEBAND VERSION I9300DDDLJ1)
PREMIUM SUIT UPDATE PART 1:- http://www.youtube.com/watch?v=6aM7kQ7sCRE
PREMIUM SUIT UPDATE PART 2:- http://www.youtube.com/watch?v=o7SEBepku-4
Click to expand...
Click to collapse
India is always the last to recieve any updates. But it will recieve the update.
On a side note, you dont need to make a new thread just to ask this!!. There is a indian discussion thread meant just for these things.
Sent from my GT-I9300 using xda app-developers app
1. Questions go in the QA section, not general.
2. Only Samsung knows when. Why don't you flash it yourself?
123shree said:
India is always the last to recieve any updates. But it will recieve the update.
On a side note, you dont need to make a new thread just to ask this!!. There is a indian discussion thread meant just for these things.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
there are so many dicussions on that thread, that's why I've made this thread.
Glebun said:
1. Questions go in the QA section, not general.
2. Only Samsung knows when. Why don't you flash it yourself?
Click to expand...
Click to collapse
coz flashing by odin will flash on my warranty
123shree said:
India is always the last to recieve any updates. But it will recieve the update.
On a side note, you dont need to make a new thread just to ask this!!. There is a indian discussion thread meant just for these things.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Why does it costs you if anyone make any thread duhhh
It is his queryk indly answer not object thank you
Sent from my GT-I9300
Ballack94 said:
Why does it costs you if anyone make any thread duhhh
It is his queryk indly answer not object thank you
Sent from my GT-I9300
Click to expand...
Click to collapse
because he's breaking the rules, which he probably didn't read
Glebun said:
because he's breaking the rules, which he probably didn't read
Click to expand...
Click to collapse
dude this thread will help Indian galaxy s III owners to find out about premium suit update if you guys appriciate it. coz here will be no discussion without premium suit! hope you guys will agree with my thought :fingers-crossed:
Poor thread title . Wtf:banghead:
《posted from s3》
Ask Samsung they are the only ones that know.
Sent from my GT-I9300 using xda premium
sumouktick said:
coz flashing by odin will flash on my warranty
Click to expand...
Click to collapse
That's just plain incorrect. Flashing a stock unrooted rom will not change the counter
Sent from my GT-I9300 using xda premium
prabhjots said:
That's just plain incorrect. Flashing a stock unrooted rom will not change the counter
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
That'll not be the Indian firmware na? So, no more official updates, no warranty
1. For official updates u r still waiting, if u eager than change to LLC and switch back to Indian firmware when launched.
2. For your warranty issue before taking any issue to ASC flash back to Indian Firmware. It takes a couple of mins.
sumouktick said:
dude this thread will help Indian galaxy s III owners to find out about premium suit update if you guys appriciate it. coz here will be no discussion without premium suit! hope you guys will agree with my thought :fingers-crossed:
Click to expand...
Click to collapse
agree.100% right
sasha8200 said:
1. For official updates u r still waiting, if u eager than change to LLC and switch back to Indian firmware when launched.
2. For your warranty issue before taking any issue to ASC flash back to Indian Firmware. It takes a couple of mins.
Click to expand...
Click to collapse
As far as I know that samsung don't give any official update to over that firmware which is flashed by odin, that doesn't matter that if you flash a official firmware of any country or of any other country.
bala_gamer said:
Poor thread title . Wtf:banghead:
《posted from s3》
Click to expand...
Click to collapse
okay. then change the title of you wish. or PM me the title of your wish, I'll change the title
sam77744 said:
agree.100% right
Click to expand...
Click to collapse
thanks for appreciating my thought :highfive:
sumouktick said:
As far as I know that samsung don't give any official update to over that firmware which is flashed by odin, that doesn't matter that if you flash a official firmware of any country or of any other country.
Click to expand...
Click to collapse
U can change ur CSC to get OTA.
But if you are reluctant to all than best is u wait for Official Update for India and you very well Samsung always delay updates for India.
Even in next few days for India you will get firmware LLA or LLB while for Spain its already LLC.
Now its your option you wait for OTA for an older firmware or update to latest.
Please read forum rules before posting
Questions go in Q&A
Thread moved
Thank you for your cooperation
Friendly Neighborhood Moderator

[Q] Camera say's it cant connect? please help me.

I just flashed eclipse 2.1 to my galaxy s3 running Andriod version 4.1.2 kernel 3.0.48 an now when i try to open my camera it say's can't (connect to the camera) And once in a while if i turn the phone off an turn it back on it gets stuck on boot loader. Every thing else seem to work sweet. can so one please help me. An ps im so noob so ill need step by step help please thank very much.
toxickid1972 said:
I just flashed eclipse 2.1 to my galaxy s3 running Andriod version 4.1.2 kernel 3.0.48 an now when i try to open my camera it say's can't (connect to the camera) And once in a while if i turn the phone off an turn it back on it gets stuck on boot loader. Every thing else seem to work sweet. can so one please help me. An ps im so noob so ill need step by step help please thank very much.
Click to expand...
Click to collapse
Wrong forum.
This is for galaxy Apollo Only not s3
Sent from my GT-I5800 using xda premium
Arjav23 said:
Wrong forum.
This is for galaxy Apollo Only not s3
Sent from my GT-I5800 using xda premium
Click to expand...
Click to collapse
im sure your right but i watched a video on you tube of a guy doing it to the same phone an it worked fine. what rom do you suggest i use?
( Congratulations! You just flashed the Eclipse ROM on your Verizon Samsung Galaxy S3 SCH-I535)
Pls see d forum before posting. This is Galaxy 3 forum.
aarsg3app said:
Pls see d forum before posting. This is Galaxy 3 forum.
Click to expand...
Click to collapse
ya i know it is im trying to fix my galaxy. so you are saying what?
toxickid1972 said:
ya i know it is im trying to fix my galaxy. so you are saying what?
Click to expand...
Click to collapse
Galaxy 3 and s3 aren't the same
They are totally different
If u want to get your desired answer, search for galaxy s3 xda forum on Google
Sent from my GT-I5800 using xda premium
Thread moved to correct section, thanks^^^^
D.O.C said:
Thread moved to correct section, thanks^^^^
Click to expand...
Click to collapse
Thank God!
Sent from my GT-I5800 using xda premium
Arjav23 said:
Galaxy 3 and s3 aren't the same
They are totally different
If u want to get your desired answer, search for galaxy s3 xda forum on Google
Sent from my GT-I5800 using xda premium
Click to expand...
Click to collapse
ok i gladly would but i cant find any thing here for s3?
toxickid1972 said:
ok i gladly would but i cant find any thing here for s3?
Click to expand...
Click to collapse
FORUM label at the top of the page .
Search for S3
Or use Google search S3 forum .
Pointless posting here .
You say you flashed eclipse so go to where you got that from for advice .
Advice / firmware etc from this forum will brick your phone .
I suggest you find our what phone you have first though .
jje
jjegan said:
forum label at the top of the page .
Search for s3
or use google search s3 forum .
Pointless posting here .
You say you flashed eclipse so go to where you got that from for advice .
Advice / firmware etc from this forum will brick your phone .
I suggest you find our what phone you have first though .
Jje
Click to expand...
Click to collapse
wow!!!!! Not looking for firmware just some advise daaaaaaaaaaaaaaaaaaaaaaaaaa!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

am noob help me

my atrix 4g: running on
android version-2.3.6
system version-4.5.145.MB860.ATT.en.
my phone UNLOCKED using india
how to install custom ROM
after updating my phone will LOCK or UNLOCK????:crying:
am reading some posts
1.root
2.recovery
3.unlock boot loader
is it correct way or not ????
If your in Bangalore call me on 9036523279
Sent from my MB860 using xda premium
am 4m HYDERABAD
ranjithkumar1201 said:
If your in Bangalore call me on 9036523279
Sent from my MB860 using xda premium
Click to expand...
Click to collapse
am 4m HYDERABAD
plz help me?
http://forum.xda-developers.com/showthread.php?t=1136261
Read this thread and carefully follow.
PM me if you have any problems.
Sent from my HTC Velocity 4G using Tapatalk 4 beta
plz spend some time...
WildfireDEV said:
http://forum.xda-developers.com/showthread.php?t=1136261
Read this thread and carefully follow.
PM me if you have any problems.
Sent from my HTC Velocity 4G using Tapatalk 4 beta
Click to expand...
Click to collapse
i have so much confusing ....i have so meany doubts
plz give ur FACEBOOK id or SKYPE id OF any id plzz:crying::crying:
srinivas.t321 said:
my atrix 4g: running on
android version-2.3.6
system version-4.5.145.MB860.ATT.en.
my phone UNLOCKED using india
how to install custom ROM
after updating my phone will LOCK or UNLOCK????:crying:
am reading some posts
1.root
2.recovery
3.unlock boot loader
is it correct way or not ????
Click to expand...
Click to collapse
There are some howto's here...I'm going over some of them as a noob myself.
http://forum.xda-developers.com/showthread.php?t=1154600
help
neal74 said:
There are some howto's here...I'm going over some of them as a noob myself.
http://forum.xda-developers.com/showthread.php?t=1154600
Click to expand...
Click to collapse
http://www.androidauthority.com/atrix-4g-mb860-android-4-1-1-jelly-bean-cyanogenmod-10-cm10-106639/
is it correct
Everything you need is available on this forum. If you are going to search for and link to stuff on other sites and forums, you might as well go ask your questions there. No point in asking on one forum about stuff on another, now is there?
Check your pm im from andhra
Sent from my MB860 using xda app-developers app
sorry sir
ravilov said:
Everything you need is available on this forum. If you are going to search for and link to stuff on other sites and forums, you might as well go ask your questions there. No point in asking on one forum about stuff on another, now is there?
Click to expand...
Click to collapse
sorry sir

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