Hello there, I have my stock T999 4.3 rooted and unlocked (not factory unlocked) to use with other network.
I would like to know if i flash and use one of the custom ROMs (T999) available here will lock my S3 again? Thanks.
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I have a T-Mobile Galaxy Note 3 that was unlocked without using an unlock code and am using it on AT&T. I got it used and believe that it was unlocked using the Chainfire region away unlock method and it is running the Wicked ROM. I would like to flash Stock Deodexed N900TUVUBMI7 ROM or revert back to stock T-Mobile ROM but am concerned that this will remove the "unofficial" unlock. Has anyone done this, or can anyone confirm that my device will stay unlocked before I attempt to flash a new ROM or revert to stock firmware?
Thanks in advance for any advice.
Looking to root my SGH-I747 but I don't know if it's an at*T or t-mobile. Is there a way to tell? I'm buying it from ebay and it just says unlocked.
Look at the label located under the battery for the exact model.
The i747 is a non-AWS AT&T model.
oh okay cool thanks
I've been doing some research on rooting and romming the s3. If it's running 4.1 I dont have to worry about bootloaders and can install and roms without worry, but if Im running 4.3 then I can't mess with the boot loader right?
The stock 4.3 AT&T bootloader cannot be downgraded and, once you are on the 4.3 bootloader, you cannot use Odin to flash a stock ROM and recovery. You can install custom ROMs with a 4.3 bootloader, it's just that it can be difficult to get the phone working if you run into problems.
On a non-4.3 bootloader, you can use Odin. If you want to run a custom ROM that is not based on a Samsung ROM, you should be fine with a 4.1.2 bootloader and radio.
Cool thanks for clearing that up it makes a lot more sense now. Hope I get a 4.1 then the phones still in the mail.
I unlock both my Koodo SGH-I747M by following the instructions (just by punching a bunch of codes) from one of those YT video and I've been using T-Mobile's prepaid service since.
http://forum.xda-developers.com/galaxy-s3/general/american-canadian-sgs3-read-flashing-t1757755
Since the specs are all the same for SGH-I747M (AT&T/Telus/Bells/Koodo/Rogers) + my phones are unlock, does that mean I can flash both my phones with Kit-Kat (once released) by any of these carriers (AT&T/Telus/Bells/Koodo/Rogers)?
Thanks.
p/s currently still on the original 4.1.1
I would not do it as att and koodo use different bootloaders and modems.
audit13 said:
I would not do it as att and koodo use different bootloaders and modems.
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Glad I asked first, thanks for the reply and it makes sense :good:.
Personally, I would avoid knox as most custom KK ROMs will work fine with the 4.1.2 bootloader. I would only upgrade the bootloader if it was required for a ROM I really wanted to use.
Your unlock means nothing to the ability to install a ROM or not.
Now, you can install the Samsung ported Sprint Kitkat ROM for AT&T if you update your bootloader and modem to the MK5 version and never use ODIN or try to downgrade your bootloader ever again ! This ROM will not work without the MK5 bootloader and modem. If you proceed that way, your warranty will be void
Also, you can always flash Koodo builds
If you wish to keep your current bootloader, you can always install any of the non samsung ROMs, but some will require that you have the MF1 bootloader at the least (CM for example).
When I first rooted my S3 I was looking for ROMs to try. I remember coming across a link to download the stock Rogers ROM with the bloatware removed.
For the life of me I am not able to find it again now that I would like to go back to the stock ROM. Does anyone know of a stock Rogers Canada ROM for the S3 (i747)?
Thanks,
imcndn
Depending on your bootloader, you may not be able to flash a de-bloated ROM if the de-bloated ROM flashes an older bootloader.
The boot loader is I747UCUEMJB
Do you have an i747 or i747m? Only the i747 (at&t version) has an mjb bootloader and flashing a Rogers ROM onto an i747 may or may not work well.
My GF's M919V is rooted and is currently running Resurrection Remix, which has been flawless. I'd like to SIM unlock this phone but the usual service menu codes mentioned here do nothing. Is it safe to downgrade to 4.4.2 to do the SIM unlock?
The service menu unlock method only works with the stock Samsung dialler in 4.1.1. If the phone is running a 4.4.2 bootloader, you can't downgrade to 4..1.1. You may be able to unlock the phone using the regionlockaway app on a rooted stock rom and older modem.
This thread may help: http://forum.xda-developers.com/showthread.php?t=2780006
If the 919 s4 is like the i337m s4, you may be able to flash a stock ROM, flash a 4.2.2 modem, root, run regionlockaway, flash original modem, and phone will be unlocked.
As an alternative, you could flash back to a stock rom and buy an unlock code.