yashsingh1/xdaforums huggingface dataset:
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
Download the latest stock ROM for the i747m from sammobile and flash it using Odin. After flashing the latest, check for updates via the built-in updates option. This is the safest way to flash the phone IMHO. Flashing a stock ROM will also ensure that everything is upgraded at the same time. Once updated, you cannot flash any older stock ROMs.

If your phone is not sim unlocked, I recommend using the free method t sim unlock, then flash with Odin.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Chupacabra117:
This because this will give me a locked bootloader right? The board's eFuses will be activated and prevent downgrading.

Will I be able to unlock the bootloader?

Is an Unlocked Bootloader required to root?

Is an Unlocked Bootloader required to flash CM12.1 Lollipop 5.1.1?

Is an Unlocked Bootloader required to flash CWM or TWRP?

Locked bootloaders only prevent downgrading?

If I install latest bootloader does that prevent ALL downgrades or does it only prevent downgrades to bootloaders that aren't locked? Like since firmware 4.3 is locked, and 4.4 is locked, if I install Official 4.4 does that prevent me from go back to 4.3.1?

I know that 4.4.2 or 4.3.1 prevents going downgrade to 4.1, but can firmwares after the locking versions downgrade to OTHER locked versions?

Also, to get DATA and CELLPHONE to work on CM12.1 you need a 5.0 compatible modem right? SO why does the modem from 4.4.2 work? It ISN'T 5.0.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] dawgdoc:
I will try to answer all/most of these and help with the confusion in terms.

A bootloader that is truly locked will prevent you from flashing custom recoveries, changing kernels, flashing roms that are not stock or stock based, etc. This is the state of the Verizon SGS3 after receiving the 4.4.2 bootloader, NE1.

Bootloaders for the i747 and i747M are not locked in the sense that the 4.4.2 bootloader for the i535 is. Once you take 4.3 for either the i747 or i747M you can no longer downgrade the bootloader. Once you are on 4.4.2 for these two devices the modem and bootloader versions must match, and you can not downgrade either. It would probably be best to say they have a restricted bootloader not a locked one.

At no time use one of the bootloader unlocking tools on your i747M. I have seen a number of reports of such attempts bricking phones.

You can root with both locked and unlocked bootloaders. I have both an i747 (unlocked bootloader) and an i535 (locked bootloader) and an Acer tablet with a locked bootloader, it has an intel processor. All three are rooted.

What you need to run CM 12.x or any Lollipop rom is a newer bootloader, at least the NE6 bootloader. You can go all of the way to the most recent bootloader OB3. This is what audit13 said previously.

You can flash TWRP, Philz Recovery, or CWM at any time on the i747/i747M regardless of your bootloader version.

Once you are on any of the 4.4.2 bootloaders, from the first to the latest, you can never downgrade the bootloader or modem. You can change between Kitkat and Lollipop roms. There are even Marshmallow roms in development that you can use. Once you are on a Lollipop or Marshmallow rom you can still go back to KitKat rom. If you want to go back to one of the KK roms based on Touchwiz, whether stock or custom, there is often a bit more work involved but nothing you couldn't handle by that time. You can not go back to a stock rom that flashes an older bootloader and modem than is already on your device. If you find a stock image, say NE6, that does not flash bootloader and modem, while you are running OB3 bootloader and modem you are safe to use it. If you are on OB3 bootloader and modem and you flash a stock NE6, or even OB2, rom that includes bootloader and modem you will brick your device.

As of now there is no 5.x.x modem for either the i747M or i747. The custom 5.x.x roms are all either based on CM or AOSP. They will all run on the 4.4.2 bootloaders and modems.

If I left something out, let us know.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Chupacabra117:
This is great. Thank you.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Chupacabra117:
I've read somewhere that when on rooted 4.1.1 and flashing 4.4.2 will cause a brick. They say to use odin to flash stock 4.1.1 and then do OTA updates that will apply the new bootloaders in an incremental and safer way. Should I do this?

Also I thought you needed an unlocked bootloader to custom roms.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] mrrocketdog:
my first , and thank goodness , only brick came with me "unlocking" my i747 bootloader.lmao ; now anyways.

"all i can really do is stay out of my own way and let the will of heaven be done"
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
Unlocked bootloaders are not required to flash a custom ROM. The AT&T versions of the Note 3 and LG G2 have locked bootloaders that can run a custom ROM.

Flashing the latest stock 4.4.2 ROM for the i747m via Odin should not brick a phone if everything flashes correctly. You can always flash the latest stock over the latest stock but you can't flash an older stock over a newer stock after 4.3.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] dawgdoc:
It's good to see that people do not have to go through each update in sequence. For a year or so I was seeing that as the standard recommendation. Incremental through each of the bootloader and modem pairs, the full stock rom was not needed. That may have been because some of the updates for the i747 were patches instead of full versions.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
With the i747, incremental updates was the safest. For the i747m, flashing directly to the latest stock rom was fine since many carriers released full ROMs, not just updates and patches.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Chupacabra117:
So that's why sammobile.com only has 2 firmwares to download for the SGH-i747 AT&T while for the SGH-747M there are like 12 for each of the different Canadian carriers.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
Exactly. Each time a carrier for the i747m released an update, they followed up with a full release.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] shoitz:
Good info in here.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] DocHoliday77:
I believe It's actually the other way around. It's because AT&T did not release the full firmware that everyone has to go through the incremental ota updates. If they had allowed the full firmware for each update to be released (like on every other carrier), none of that would be necessary. There also wouldn't be near as many problems or hard bricks!

It's just a guess, but they probably did this so that only AT&T customers would be able to easily get their updates.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] viddy1355:
Delete
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] rootmepls:
Unlock At&t SGS3 that is rooted and /rom

Just got an unlock code from At&t and was thinking of unlocking this phone I haven't used in a couple years. It's rooted and running an old Task 650 4.4.4 ROM. Will the unlock still work when I put a sim from Metro PCS in it?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] mrrocketdog:
pretty sure you have to be stock for code to work. (something about the "dialer" i believe ¿).

hopefully someone can chyme in to confirm/deny this.

"err on the side of kindness"
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] rootmepls:
Thanks for the reply.

The instructions I got from At&t sound pretty simple.

Unlock Steps - Use Non-AT&T SIM Card

1. Power off the device, remove the battery, and insert a non-AT&T SIM card.

2. Re-insert the battery and power on the device with non-AT&T SIM.

3. The device displays "Enter the device unlock code."

4. Enter the eight-digit unlock code.

5. Press OK.

I'm just not sure if the phone needs to reboot into recovery like an ota update. It doesn't say anything about rebooting.

And I'm not sure why the dialer would come into play when all I have to do is enter an 8 digit unlock code.

Also this phone has been rooted and running ROMs since the first week I had it back in the day. Just want to unlock and

pass it down to a needy coworker.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
On a non-tw custom rom, I'd be surprised if it prompts for an unlock code.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] rootmepls:
What touch wiz rom to you suggest for this phone. It's been ages since I've flashed anything else on it. Or should I just flash it back to whatever stock is now for this phone.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
It depends on the bootloader on the phone. If you see anything about Knox or warranty bit in download mode, you'd have to flash a stock Samsung rom via twrp. It's important to know the bootloader, then find a compatible stick rom in the general thread.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] rootmepls:
Someone suggested I install Samsung Device Info and it says the Bootloader is I747UCDLK3. Device info also says something about Knox Warranty bit 0x. If any of that helps.

Also suggested I upgrade firmware to UCUFNJ2 and flash a stock image. This one looks like a good candidate.

Hows that look to you?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
If the phone is running lk3, you should be able to flash a stock 4.1.1 rom from sammobile.com, setup the phone, sim unlock the code, and just then ota updates until the phone is running the latest rom.

If the code doesn't work, use the free sim unlock method on stock 4.1.1 rom from sammobile BEFORE running any ota updates.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] mrrocketdog:
[MENTION=4673498]audit13[/MENTION] , i have inherited an sghi747 (att) with cracked screen (still readable/useable) running MG2 bootloader & modem. twrp is current (3.0.0.1) and android v4.4.2 (CM11snapshot M2).

is a little laggy with occasional random reboots. any suggestions on how to fix , what to do with ?

(phone not currently network active).

and on unrelated side note/question : is there any real benefit to upgrade from KK in your honest opinion ?

just curious on ur thoughts.

thank you

"err on the side of kindness"
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
Is the phone sim unlocked? If not, it would be a good idea to sim unlock it using the free method.

Upgrading to the latest kk bootloader and modem would allow the phone to use the most recent ROMs as some ROMs need it for wifi and data to work.

As for the reboots, it could be software or hardware. No way to really tell unless the phone is flashed back to stock and tested under stock.

If it were my phone, I would upgrade to the latest.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] mrrocketdog:
nope. not sim unlocked. will do that first. thank you.

ok. back to stock , sim unlock , see if reboots continue and move on from there.

mucho grande gracious [MENTION=4673498]audit13[/MENTION] for expertise and valued opinion.:good:

"err on the side of kindness"
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] joshua14:
I have 2 i747 that were At&t previously but no longer with active Sims. They are just the previous phones that the wife and I had that are what my kids use now via WiFi for games and such. But I have 1 running the latest 13.0 nightly and the other 12.1 snapshot. Both running smoothly with no issues. Battery life is phenomenal too. If they didn't seem so damn small as compared to the s5 that I've been using I'd be using it as my daily phone with the ability of an unlocked bootloader and using TWRP. But I have TMS5 3.0 on my s5 finally running smoothly now too. So happy enough for now. Lol
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Gen_Y696:
Guys anyone know how to get screen mirroring to work on cm 12.1? I tried cast screen but not working. Any work around?

Using note 3

Stock cm 12.1 kernel.

Note 3 (N9005)

CM 12.1

Sony Walkman + ARISE Sound System
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] aircooledbusses:
stupid cuz of something I did?

alright, here is a stupid question. a little background first. Att s3 i747- not the M. had this phone since day one and know my way around it, but am not a developer. started random shutdowns, so I stock restored LK3- it was on mj2. long story short, i sent it in for a power button repair and the tech said button in fine there is an error in the boot up process. I tried everything I know and even took it up to NE4 with the 4 file odin method. Nothing. sometimes it will boot up but not for long. mostly it bogs down on the white Att screen- the spash? screen maybe.

So my question is what to do next? is there any hope?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] mrrocketdog:
i thought there was NO downgrading after mj2 ¿

hopefully @ henry ; i meant [MENTION=4673498]audit13[/MENTION] will chyme in.

glad to see you here busses. just not these circumstances.

"err on the side of kindness"
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] aircooledbusses:
yes, I was careful not to downgrade after NE4. mj2 boot and radio modem was all I ever ran an always was able to stock restore back to LK3. Since everything I have ever done that always worked was no longer working I decided to finally upgrade the bootloader to NE4 (enter Knox.) Same non booting problem persists. So, in my limited knowledge I believe there may be an issue with the EMMC what ever the heck that is, that is preventing a seamless boot up process. Splash screen is sluggish and choppy.

now that I have flashed the four file odin NE4, I am sort of hesitant to do much else. Oh, and by the way when I do attempt flashing through TWRP, phone shuts down mid flash. this is just plain wierdo to me.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] mrrocketdog:
[MENTION=4673498]audit13[/MENTION] , help !!!!!!! when have time. :)

"err on the side of kindness"
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
If it was a power button problem, it wouldn't cause the phone to slow down but it would cause the phone to suddenly power off or reboot so I'm not convinced it's not a power button issue.

Do you have a multimeter to test the volume button to see if the circuit is open or closed?

Is the phone the same, better, or worse after coming back from the shop? Did you check for possible loose connections? Was the phone ever dropped?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] mrrocketdog:
ty henry & [MENTION=4673498]audit13[/MENTION].:sly:

"err on the side of kindness"
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] aircooledbusses:
I did check for possible loose connections to the mother board only. after removing the back inner cover and lower cover, I inspected and sometimes disconnected and reconnected the ribbon connectors.

I am going to look for a stock restore file I can flash through TWRP, I have not tried that yet, only tried flashing a custom ROM since the NE4 four file debacle.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
There's nothing wrong with flashing ne4 in my opinion.

You could try this: flash TWRP with Odin and then flash CM to see if the phone behaves any differently.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Tmobilefan906:
Hey stranger. I was able to get to DL mode with no battery. Wasn't it holding volume down and plugging in a PC? I know I've done it before, but can't remember. Thanks.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
I think so but I have no way to check since I haven't had an s3 for a long time.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Tmobilefan906:
Me neither. A friend asked me.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] samsuning:
a stupid question from a newb ::: Galaxy S3 (Fido, Canada)

Thanks for this thread. I have a Galaxy S3 (Fido, Canada). in stock I can see it is and i747. But when I tried to flush an AT&T rom on it it said that it is a spring (which means it is an L710). So now I can install only d2spr roms. Any ideas? Thanks in advance for the great job you are doing here.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
Boot into download mode to confirm the model #. You should not attempt to flash anything until you confirm the model #.

The Canadian s3 is the sgh-i747m. AT&T s3 is sgh-i337 (no m at the end).
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] samsuning:
so which rom of cm or lineage should I install in my canadian Fido SGH-i747M? (I prefer any marshmallow version, otherwise android version 5.x ). thanks
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
You confirmed the model is the i747m in download mode? Not sure why the ROM would say i747.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] samsuning:
yes it's sgh-i747m (canadian s3 for fido). normally at&t is the i747 (without the m at the end)
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
I no longer have the s3 so I can't really comment on which ROM would be best. I do know that d2lte and d2att ROMs can be flashed to the Canadian s3.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] samsuning:
Just to read an answer make me relieved! Thanks a lot. Right now i moved to another thread about the SlimRom marshmallow because I tested it and it seams working perfectly but when I flush it with gapps, no google app worked and I keep stacked at the boot.

thanks again
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] smgt550:
hi i would like to know if theres any way to get audio from my pc into my phone via usb basically my phone has the dsp that i want and the pc doesnt so is there any way to get the audio out in realtime and play it through my phone. galaxy s3 stock rom rooted 4.4.2
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] goodflood:
Question:

Battery: Is the SAMSUNG New Genuine Battery for GT-I9300 Galaxy S3 AND battery for d2att compatible.

I have a d2att and want to get a replacement battery... would a new GT-19300 battery work in it?

Thanks!
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
Yes, the GT-9300 battery will work in the sgh-i747 (https://xdaforums.com/galaxy-s3/accessories/i9300-sgh-i747-battery-type-t1874382); however, I recommend going with something from Anker, ZeroLemon, Aukey, Stallion and PowerBear. They are sold on Amazon: https://www.amazon.ca/PowerBear-Sam...TF8&qid=1531837726&sr=8-5&keywords=s3+battery
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] goodflood:
Question: TWRP

Can I use TWRP recovery to apply the new TWRP update?

Update: This: http://technastic.com/install-latest-twrp-recovery-android-devices/ says that I have to tap images button on the right. Worked!
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] audit13:
Yes, you can use the existing TWRP to flash a newer version of TWRP. After flashing the updated version, just reboot into recovery to use it.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] tpbill:
Can anyone give me the original s3 rom

---------- Post added at 03:16 AM ---------- Previous post was at 02:56 AM ----------

Can anyone give me the original s3 rom
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] mrrocketdog:
well , no one here knows which original s3 rom your looking for and i will just guess that you mean "stock" by "original.

you should try sammobile maybe ;

https://www.sammobile.com

or ; if your more specific about which s3 you have , someone here might could help out.

good luck:thumbsup:
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] pforsb01:
I did this a few days ago and I believe it was under "ATT Samsung Galaxy S3" near the bottom of the list.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] sulihpoeht:
Hey guys, I like the CM10 lockscreen a lot, is there any way that I could get that on the stock ROM? Anything similar?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] NunHugger:
open dialer, hit menu, settings/call alert/call status tones.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] kingofslackerz:
Couldn't find any guides on this.

Force CWM backup's to skip /data/media (internal storage) or a way to unmount internal storage before performing backup

my nandroids take forever because of this.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] ZiiC:
I need to install the proper version for my phone of CWM recovery.

I have the .img file on my PC but I have no idea what to do with it now.... Biggest noob question of the day.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] jethro650:
This should help you out

http://xdaforums.com/showthread.php?t=1903913

[Howto] Install a Recovery

Since you already have the .IMG then you'll want #4 but I suggest reading it all.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] morphine_s2:
A question, is it normal to have a missing nv_data.bin in efs folder for I747m? Im trying to unlock it. Since its not a I9300, I have to unlock through the nv_data.bin file, because I cant use the Voodoo app. I bought this phone from Craigslist.

Its already rooted. I got SU and Root Eplorer. Also when I enter *#06#. It showed my phone's IMEI and when I have the Rogers SIM, it will ask me for unlock code on boot up.

I have no original efs folder that contains the nv_data.bin. So at this moment I really don't know if it didn't have nv_data.bin from the beginning or I bought a bricked phone : (.

Thank you. : )
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] UnicOrnseeD:
Can I get just the cool target style lock for milestone tw rom?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Mont123:
When using aokp rom, or CNA is there a way to get all lock screen targets in white?

Or do the shortcuts I add have to be in color

Thanks
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] thecapitalr:
CM10 kernal flash?

Hey guys. New to android. Have had a S3 for a few weeks now after living in iOS land since 2007. Love it thus far.

Yesterday I finally put CM10 on my phone after experimenting the past few weeks with DG Jelly Bean and Team Insomnia Jelly Bean which were both too unstable for my liking. CM10 seems rock solid and I love it so far.

Been thinking about flashing a custom kernal. At this point, my S3 is plenty fast for me so I don't see any need to overclock the thing (I am a medical student so if something happens to my phone I really don't have much time to spend hours troubleshooting).... Other than overlcocking/messing with the voltages (which it seems like you can do also straight from the CM10 settings?), I am confused as to what exactly the point / benefit of flashing a kernal is? The one thing that I would like is improved battery life... will flashing any of these kernals help me out in that sense?

If there is a kernal that improves battery can someone point me to the link? The one I was thinking of flashing was KT747.

Thanks for answering my noob question. Hopefully this was the correct thread to ask it in.
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] waiters:
Overclock, undervolt, change governors and schedulers, and built in tweaks..

Sometimes they come with custom oe updated wifi / bt drivers etc

The only custom kernel that is currently being supported by the developer is kt's.

Look in the sgs3 original development forum
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] Krazedkuniva:
Does anyone have the link to the stock, unrooted rom where the download links still work? I found one earlier but the links for the full rom are dead.

Thanks
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] sulihpoeht:
is there a way to get the ripple effect with a live wallpaper? like some mod, settings, or hack, or anything of the sort?
[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] ShadyAce80:
check this out: http://www.sammobile.com/firmware/?page=3&model=SGH-I747&pcode=ATT&os=1&type=1#firmware

I have not used this so I am not 100 percent that this is what you need, assuming that you are looking for stock with bloat included, but it is a starting point.

edit: Here is another link and I verified that the links in this post are not dead. http://galaxys3root.com/galaxy-s3-unroot/how-to-unroot-att-galaxy-s3-sgh-i747/

Here is the direct link to the latest stock http://stockroms.net/file/GalaxyS3//SGH-I747. the one in the post from July but same source.