[Q] Network Unlocking a UK Samsung S3 LTE? - Galaxy S III I9305 (4G LTE + 2GB RAM) Q&A, Help &

I'm about to move to Australia and wanted to unlock my Samsung S3 LTE, which is currently locked to EE. I've looked at doing it via the network, who charge about £20 and also on Ebay, who don't seem to support my phone. Is there a way of unlocking it?
The phone is running Android 4.3 and hasn't been rooted or customised in any way.

Pianoman91 said:
I'm about to move to Australia and wanted to unlock my Samsung S3 LTE, which is currently locked to EE. I've looked at doing it via the network, who charge about £20 and also on Ebay, who don't seem to support my phone. Is there a way of unlocking it?
The phone is running Android 4.3 and hasn't been rooted or customised in any way.
Click to expand...
Click to collapse
you might want to check this out --> http://forum.xda-developers.com/galaxy-s3/help-i9305/sim-card-unlock-samsung-galaxy-s3-gt-t2185866

MaHo_66 said:
you might want to check this out --> http://forum.xda-developers.com/galaxy-s3/help-i9305/sim-card-unlock-samsung-galaxy-s3-gt-t2185866
Click to expand...
Click to collapse
I'll give that a try- many thanks!

that guide is useless... you can't downgrade to 4.1.1 once you got 4.3

spiderman07 said:
that guide is useless... you can't downgrade to 4.1.1 once you got 4.3
Click to expand...
Click to collapse
It worked for me.

spiderman07 said:
that guide is useless... you can't downgrade to 4.1.1 once you got 4.3
Click to expand...
Click to collapse
nothing is useless till you have tried it mate and im glad it worked out for you pianoman :good:

spiderman07 said:
that guide is useless... you can't downgrade to 4.1.1 once you got 4.3
Click to expand...
Click to collapse
Stop saying crap. You can downgrade if you didn't install a stock 4.3.

Pianoman91 said:
I'm about to move to Australia and wanted to unlock my Samsung S3 LTE, which is currently locked to EE. I've looked at doing it via the network, who charge about £20 and also on Ebay, who don't seem to support my phone. Is there a way of unlocking it?
The phone is running Android 4.3 and hasn't been rooted or customised in any way.
Click to expand...
Click to collapse
Hi,Pianoman91,you can unlock your device method downgrade- flashing firmware 4.1.1 from this forum:http://www.htcmania.com/showthread.php?t=738977
You need previously root your device,install a custom recovery and then flash firmware 4.1.1. Then use the hidden menu.This must to work!Before you must to make all backups.
Once done,you can flash again 4.3 frmware.You have to be aware that this proces will change Knox status from 0X0 to 0X1. This method is tested and works.Make on your own risk.
Thanks a develloper fzeta !
Best regards!

Pianoman91 said:
It worked for me.
Click to expand...
Click to collapse
Have you been able to downgrade to 4.1.1 while having stock 4.3?

LucasBass said:
Have you been able to downgrade to 4.1.1 while having stock 4.3?
Click to expand...
Click to collapse
Need to explain that is not downgrade to Bootloader 4.3/KNOX/-this is impossible for the moment.This way we make downgrade to firmware 4.3-4.1.1.:good:

LucasBass said:
Have you been able to downgrade to 4.1.1 while having stock 4.3?
Click to expand...
Click to collapse
The method suggested here worked perfectly for me
MaHo_66 said:
you might want to check this out --> http://forum.xda-developers.com/galaxy-s3/help-i9305/sim-card-unlock-samsung-galaxy-s3-gt-t2185866
Click to expand...
Click to collapse
As mentioned, using this does trigger the Knox counter- but if that doesn't bother you then it's worth doing this method to unlock your phone. After I'd used Odin to go back to 4.1 and unlocked the networks I just reconnected the phone to Kies and it then updated the firmware back to 4.3. Tried a Vodafone Sim card in my phone today to make sure it was unlocked and it worked perfectly.

Pianoman91 said:
The method suggested here worked perfectly for me
As mentioned, using this does trigger the Knox counter- but if that doesn't bother you then it's worth doing this method to unlock your phone. After I'd used Odin to go back to 4.1 and unlocked the networks I just reconnected the phone to Kies and it then updated the firmware back to 4.3. Tried a Vodafone Sim card in my phone today to make sure it was unlocked and it worked perfectly.
Click to expand...
Click to collapse
We are talking about two different methods,Pianoman91.I think if you try flash oficial firmware from 4.3/official/ to 4.1.1 trough Odin you will not be able to do it.Downgrade to bootloader 4.3 it is impossible in this time. But if we apply the method I mentioned should work .You should flashing trough Custom recovery a firmware modified.
Best regards!

Related

Another bootloader question

Ok, so pretty everyone here has heard of the supposedly upcoming jellybean update as well as an incoming bootloader unlock for euro open O4Xs. I bought this phone unlocked from amazon. Bottom line- it has a Taiwan branded stock rom on it. Does anyone think there'll possibly be a chance I will have my bootloader unlocked too or should I just not get my hopes up?
Anyone?
juanacevedo said:
Anyone?
Click to expand...
Click to collapse
you'll just have to flash the EU-open firmware before unlocking the bootloader. that's it.
saptemai said:
you'll just have to flash the EU-open firmware before unlocking the bootloader. that's it.
Click to expand...
Click to collapse
that is something i was wondering. Is the bootloader on the firmware?
Probably we'll can flash jb with new bl via kdz like another firmwares
I hope in february
Just flash an euro open firm...
Hello.
I bought my phone from amazon too, and i just flashed the newest firmware via kdz because the update wasn't available via OTA. My phone is also branded TW but it is just working great. You won't have problems.

Flash Stock Sony Firmware on to carrier locked phone

Hey guys,
I have one or two questions I cant seem to find a definitive answer for.
I currently have a Z1 locked to my local O2 network. They still haven't release any updates past 4.2.2.
I was wondering would it be possible to flash a Sony Stock Factory Image so that future OTA updates would come from Sony and not through my carrier?
I was looking at this ROM here. So Root the phone, flash the ROM and then remove root.
Some might say why not root, unlock etc. but the to be honest I have done my fair share of trying different ROM's on different phones, throughout the years and I just love how stable the phone is and how good the battery life is that I just don't want to mess around with it too much.
Dave
You already messing around. That link which you posted is a method to root your phone and if you do not want to root it then is not the right thread. To update your phone to latest FW you have to flash the Unbranded Firmware .136 for your model from HERE
Use flashtool v0.9.13 to do that, wipe everything and you are done. This is for Locked Bootloader and you will also get next Updates when they comes.
eclyptos said:
You already messing around. That link which you posted is a method to root your phone and if you do not want to root it then is not the right thread. To update your phone to latest FW you have to flash the Unbranded Firmware .136 for your model from HERE
Use flashtool v0.9.13 to do that, wipe everything and you are done. This is for Locked Bootloader and you will also get next Updates when they comes.
Click to expand...
Click to collapse
Its as simple as that? I might give it a shot this evening so when I get home.
davkav said:
Its as simple as that? I might give it a shot this evening so when I get home.
Click to expand...
Click to collapse
Yes, it's simple because you just want the latest Firmware only, No Root, No Unlocked Bootlader.
One last question, if I flash the latest UK version which is .290 will I receive OTA or PC Companion updates as soon as .136 is out for the UK version?
davkav said:
One last question, if I flash the latest UK version which is .290 will I receive OTA or PC Companion updates as soon as .136 is out for the UK version?
Click to expand...
Click to collapse
Yes
harfot said:
Yes
Click to expand...
Click to collapse
Brilliant, Thanks!

[Q] NOOB help with custom ROM & Unlocking

Ok first of all I apologise for my noobish questions in advance, different forums are telling me different answers to the same questions so here goes -
Situation: I am getting a Samsung Galaxy S3 I9305 (4G) soon and as far as i am aware it has Android 4.3 on it, I'm confused about the knox bootloaders etc but here is what I want to do
1. Unlock Phone for Free using Debug Menu (Some people say downgrading to 4.1.1 allows free unlocking, other's dont)
2. Install Custom ROM
I don't care about warranty voiding, I just want to unlock my phone for free and have a custom ROM & Recovery
Can you please lead me in right direction? Thanks
Update - Here is a quick tutorial:
Use this to downgrade 4.3 to 4.1.1 - flash using custom recovery
http://mediafire.com/download/9y2xo8a16w41eyr/Firmware_4.1.1_Modificado_for_fzeta.zip
Then use these instruction to unlock your phone.
Put a different SIM to your own into the handset and then turn off the handset and switch it back on with that SIM inside.
Go to the dial pad on your phone and then type in *#197328640#.
Head over to the Main Menu of the device > [1] UMTS > [1] Debug Screen > [8] Phone Control > [6] Network Lock > Options [3]Perso SHA256 OFF > and wait for around 30 seconds.
You should then head to Menu and choose Back, where you will come across the Network Lock. Choose [4] NW Lock NV Data INITIALLIZ.
Enter *#197328640#.
That's it your phone is now unlocked. You can now use any sim card.
You can update, Root, flash custom rom and everything you want. It will stay unlocked
1. You can't downgrade to 4.1.1 to use that method...phone won't boot...
2. Installing custom rom is easy...install CWM and happy flashing..
spiderman07 said:
1. You can't downgrade to 4.1.1 to use that method...phone won't boot...
2. Installing custom rom is easy...install CWM and happy flashing..
Click to expand...
Click to collapse
So there is NO way of unlocking this phone for free? This user says it's possible to downgrade to 4.1.1 from a knox-bootloader...http://forum.xda-developers.com/galaxy-s3/help-i9305/sim-card-unlock-samsung-galaxy-s3-gt-t2185866
I am getting confused now, sorry I own a Nexus 4 atm, I know the insides and outs of putting custom roms on that but Samsung is a new experience for me
spiderman07 said:
1. You can't downgrade to 4.1.1 to use that method...phone won't boot...
2. Installing custom rom is easy...install CWM and happy flashing..
It is true that no one can do downgrade to KNOX bootloader,but who said that you can`t flash a Custom 4.1.1 ROM maintaining Knox bootloader.
Best regards:good:
---------- Post added at 10:36 AM ---------- Previous post was at 09:57 AM ----------
In short, everyone taking your device rooted,whith an custom Recovery can do this.Flashing a modified ROM 4.1.1 ,then using a hidden menu/debug/ can unlock the phone.Using a custom 4.1.1 ROM modified from this forum:http://www.htcmania.com/showthread.php?t=738977 is possible to unlock.Moreover,after unlock your phone you can flash 4.3 maintaining your phone unlocked.
Click to expand...
Click to collapse
Click to expand...
Click to collapse
viktorak said:
spiderman07 said:
1. You can't downgrade to 4.1.1 to use that method...phone won't boot...
2. Installing custom rom is easy...install CWM and happy flashing..
It is true that no one can do downgrade to KNOX bootloader,but who said that you can`t flash a Custom 4.1.1 ROM maintaining Knox bootloader.
Best regards:good:
---------- Post added at 10:36 AM ---------- Previous post was at 09:57 AM ----------
In short, everyone taking your device rooted,whith an custom Recovery can do this.Flashing a modified ROM 4.1.1 ,then using a hidden menu/debug/ can unlock the phone.Using a custom 4.1.1 ROM it is possible to unlock.Moreover,after unlock your phone you can flash 4.3 maintaining your phone unlocked.
Click to expand...
Click to collapse
OMG Thank You!!! Downgraded to pre-modded 4.1.1 and did the Debug Menu trick and now I am unlocked
Click to expand...
Click to collapse
Click to expand...
Click to collapse
pcwiztech said:
viktorak said:
spiderman07 said:
1. You can't downgrade to 4.1.1 to use that method...phone won't boot...
2. Installing custom rom is easy...install CWM and happy flashing..
OMG Thank You!!! Downgraded to pre-modded 4.1.1 and did the Debug Menu trick and now I am unlocked
Click to expand...
Click to collapse
You're bold and you got yours.I'm glad you made it.Hit the thanks button when this has helped you.:laugh:
Click to expand...
Click to collapse
Click to expand...
Click to collapse
pcwiztech said:
viktorak said:
spiderman07 said:
1. You can't downgrade to 4.1.1 to use that method...phone won't boot...
2. Installing custom rom is easy...install CWM and happy flashing..
OMG Thank You!!! Downgraded to pre-modded 4.1.1 and did the Debug Menu trick and now I am unlocked
Click to expand...
Click to collapse
Hello pcwiztech
You have a procedure for downgrade version 4.3 to 4.1.1
How did you do?
Can you make a tutorial?
I speak little English.
Thanks,
Click to expand...
Click to collapse
Click to expand...
Click to collapse
a link to a modded 4.1.1 with 4.3 bootloader?
spiderman07 said:
a link to a modded 4.1.1 with 4.3 bootloader?
Click to expand...
Click to collapse
Yes, I want a dowgrade bootloader version 4.3 to 4.1.1 and 4.1.2
My phone is in original Version 4.3
twedie said:
Yes, I want a dowgrade bootloader version 4.3 to 4.1.1 and 4.1.2
My phone is in original Version 4.3
Click to expand...
Click to collapse
i also want a link to a modded 4.1.1 or 4.1.2 with the 4.3 bootloader to unlock my phone...
maybe someone will post it.
Use this to downgrade 4.3 to 4.1.1 - flash using custom recovery
http://mediafire.com/download/9y2xo8a16w41eyr/Firmware_4.1.1_Modificado_for_fzeta.zip
Then use these instruction to unlock your phone.
Put a different SIM to your own into the handset and then turn off the handset and switch it back on with that SIM inside.
Go to the dial pad on your phone and then type in *#197328640#.
Head over to the Main Menu of the device > [1] UMTS > [1] Debug Screen > [8] Phone Control > [6] Network Lock > Options [3]Perso SHA256 OFF > and wait for around 30 seconds.
You should then head to Menu and choose Back, where you will come across the Network Lock. Choose [4] NW Lock NV Data INITIALLIZ.
Enter *#197328640#.
That's it your phone is now unlocked. You can now use any sim card.
You can update, Root, flash custom rom and everything you want. It will stay unlocked
so just to be sure this firmware is for Samsung Galaxy I9305? (S3 with LTE and 2GB RAM)...
spiderman07 said:
so just to be sure this firmware is for Samsung Galaxy I9305? (S3 with LTE and 2GB RAM)...
Click to expand...
Click to collapse
Yes I have I9305 and this worked !
I got really excited when I saw this, coming from a new thread I made after discovering the inability to downgrade to 4.1.1 after Knox is installed.
However, I ran into a snag (I'm trying to downgrade from 4.4.4, i9305 with CWM 6.0.4.7):
format() expects 5 args, got 4
E:Error in /data/media/0/stock411.zip (I renamed it and copied it again to internal phone storage in case it was a bad transfer to ext SD card previously)
(Status 7)
Installation aborted.
Any ideas?
Did your 4.3 phone definitely have Knox installed before?
Is this issue occurring because I'm coming from 4.4.4?
Thanks for your input.
Clapfish said:
I got really excited when I saw this, coming from a new thread I made after discovering the inability to downgrade to 4.1.1 after Knox is installed.
However, I ran into a snag (I'm trying to downgrade from 4.4.4, i9305 with CWM 6.0.4.7):
format() expects 5 args, got 4
E:Error in /data/media/0/stock411.zip (I renamed it and copied it again to internal phone storage in case it was a bad transfer to ext SD card previously)
(Status 7)
Installation aborted.
Any ideas?
Did your 4.3 phone definitely have Knox installed before?
Is this issue occurring because I'm coming from 4.4.4?
Thanks for your input.
Click to expand...
Click to collapse
Hi, does the ZIP file open on your PC? If not then re-download
pcwiztech said:
Hi, does the ZIP file open on your PC? If not then re-download
Click to expand...
Click to collapse
Yep it's fine, also downloaded again for good measure... still no joy I'm afraid
Clapfish said:
Yep it's fine, also downloaded again for good measure... still no joy I'm afraid
Click to expand...
Click to collapse
Have you tried using TWRP recovery instead?
pcwiztech said:
Have you tried using TWRP recovery instead?
Click to expand...
Click to collapse
No, that may well have been my next move, but oddly enough I managed to seemingly very flukely flash a stock 4.1.1 ROM with Odin just now, download link here:
TBA (can't post links yet)
Wasn't expecting it to work at all and almost didn't try, given the previous 'Unsupported Version' messages when trying to downgrade to other stock ROMs with Odin, but there you are, this time it worked, somehow...
The rest of the trick with the dialler menu worked a treat and I now have a SIM unlocked (though faulty, GPS doesn't work) SGS3
Hi,
I have a Samsung I9305 LTE, with official 4.3 rom. I don't care about warranty (as it's expired anyway), and the unlocking stuff (I can use whatever SIM card, so I guess it is an unlocked version?), all I want is to flash a custom rom. What do I need to do?
Hi,
I have some questions too. I am a new I9305 owner.
I have the 4.3 bootloader, I don't care about Knox as I have no warranty (phone was 2nd hand). I've already tripped Knox anyway after flashing Philz recovery and rooting with it.
I have two requirements really, which I think are more kernel-dependent than ROM-dependent.
1) White balance/colour calibration. I hate the blue-green tint to the whites.
2) Wolfson/Boeffla sound controls for the Wolfson DAC.
I don't really care if it's Android 4.1/4.2/4.3/4.4, AOSP, CM or stock.
So far I still have the Samsung stock 4.3 ROM but I've flashed the AGNI v3.8.5 kernel which has given me some sound controls, but nothing useful regarding the display. Ideally, colour multipliers, black level, gamma etc.
The Perseus kernel+Stweaks looks like it might fit the bill, but I think it's 4.1.2 only and I'm not sure if it works with the 4.3 Knox bootloader? I'm happy to switch to a 4.1.2 ROM if I can, I just REALLY want to be able to fine-tune the screen!
Maybe there are other kernels that support this for 4.3 or 4.4? Or do any CM builds have the screen controls in the ROM itself?
Thanks!
Glenn

Update to 4.4.4

hi everyone, 3 months ago i rooted my phone with the guide in the general section but since that i get an update to android 4.4.4 comp 14.4.A.0.108 (i have 4.4.2 comp 14.3.A.0.757) and i don't wanna lose my root i checked the "FTF Mega Collection" and there is not that version there are 14.4.A.0.133 & .118 what can i do to upgrade it without losing my root??
Thanks
vhos96 said:
hi everyone, 3 months ago i rooted my phone with the guide in the general section but since that i get an update to android 4.4.4 comp 14.4.A.0.108 (i have 4.4.2 comp 14.3.A.0.757) and i don't wanna lose my root i checked the "FTF Mega Collection" and there is not that version there are 14.4.A.0.133 & .118 what can i do to upgrade it without losing my root??
Thanks
Click to expand...
Click to collapse
If you whether upgrade or downgrade your phone, you'll surely lose the root access
I suggest you use 133
SaeedFazlollahzadeh said:
If you whether upgrade or downgrade your phone, you'll surely lose the root access
I suggest you use 133
Click to expand...
Click to collapse
yeah but when i did the root i downgrade my phone rooted it and after i upgrade it rooted
vhos96 said:
yeah but when i did the root i downgrade my phone rooted it and after i upgrade it rooted
Click to expand...
Click to collapse
You mean you rooted your phone by downgrading and upgrading method?
It's different from flashing
That roots your phone, but this empties your phone
SaeedFazlollahzadeh said:
You mean you rooted your phone by downgrading and upgrading method?
It's different from flashing
That roots your phone, but this empties your phone
Click to expand...
Click to collapse
yeah thats what i mean sorry im a newbie , theres a way to upgrade it without losing the root?
vhos96 said:
yeah thats what i mean sorry im a newbie , theres a way to upgrade it without losing the root?
Click to expand...
Click to collapse
No, certainly no
Maybe in the future, but not now
well thanks for your help ill wait for lollipop, thank you

I need some help with getting back to unlocked firmware.

I recently made an insurance claim for my phone and had to send my unlocked firmware note 8 back. Problem I'm having now is, I cant get the new one on an unlocked firmware. I keep getting errors in all the Odins I have. I dont know much about the v4 bootloader or when it was locked. I was able to gi back to Nougat on my old phone and then upgrade back oreo. That was in August though. Any help would be appreciated. I cant stand this ATT ****!
cameronw2023 said:
I recently made an insurance claim for my phone and had to send my unlocked firmware note 8 back. Problem I'm having now is, I cant get the new one on an unlocked firmware. I keep getting errors in all the Odins I have. I dont know much about the v4 bootloader or when it was locked. I was able to gi back to Nougat on my old phone and then upgrade back oreo. That was in August though. Any help would be appreciated. I cant stand this ATT ****!
Click to expand...
Click to collapse
You can only flash the same bootloader v4 firmwares or higher from now on. No downgrading possible to bootloader v3 or below!
Can't even go back to Nougat (that was on bootloader v3 and below)!
If you are just need the unbranded firmwares look for the ones with the bootloader v4.
Eg N950U(U1)SQS"4"CRH1. The 4 in "" is your bootloader version.
If you want to root or go back to nougat then you'll need to talk to ATT for another phone that's on bootloader v3 or below.
BluePhnx said:
You can only flash the same bootloader v4 firmwares or higher from now on. No downgrading possible to bootloader v3 or below!
Can't even go back to Nougat (that was on bootloader v3 and below)!
If you are just need the unbranded firmwares look for the ones with the bootloader v4.
Eg N950U(U1)SQS"4"CRH1. The 4 in "" is your bootloader version.
If you want to root or go back to nougat then you'll need to talk to ATT for another phone that's on bootloader v3 or below.
Click to expand...
Click to collapse
Could you possibly link me the the firmware I do need? I would really appreciate as I'm stuck on this current firmware. I've looked and looked. I'm just unable to find the right firmware. I suppose it's possible I'm not getting the right one. Idk.
cameronw2023 said:
Could you possibly link me the the firmware I do need? I would really appreciate as I'm stuck on this current firmware. I've looked and looked. I'm just unable to find the right firmware. I suppose it's possible I'm not getting the right one. Idk.
Click to expand...
Click to collapse
The easiest is to use SamFirm to download the firmware. Then use modified ODIN 3.13.1 to flash it.
Mr. Orange 645 said:
The easiest is to use SamFirm to download the firmware. Then use modified ODIN 3.13.1 to flash it.
Click to expand...
Click to collapse
I figured all out! I managed fo flash the latest unlocked without any issues.

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