Does region unlock survives bootloader unlock + custom ROM? - Samsung Galaxy S7 Edge Questions and Answers

I'm planning to buy a European version of the SG7 edge. Checking online I found about the region lock issue so I was wondering if, after unlocking it with 5 minutes of calls, can I still unlock the bootloader and install custom ROMs without losing the unlock itself. I need to know this as I live outside Europe at the moment, so I don't want to have a useless phone after a while, thanks

Pav90 said:
I'm planning to buy a European version of the SG7 edge. Checking online I found about the region lock issue so I was wondering if, after unlocking it with 5 minutes of calls, can I still unlock the bootloader and install custom ROMs without losing the unlock itself. I need to know this as I live outside Europe at the moment, so I don't want to have a useless phone after a while, thanks
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You can unlock bootloader and install custom Rom. If you buy a global unlocked variant.
Sent from my SM-G935F using Tapatalk

There's no really such thing as a bootloader unlocking on european model. It's just always unlocked. You can flash anything You want. And the call unlock thingy should either be required to do just once after buying it. Or every time You flash a custom rom. But that's the worst case. So I think You should be fine with just one 5 minute call. So don't worry. Get the phone. And enjoy! Recently we have so many custom roms that it's really worth it.

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[Q] SGH-i337m - is my phone unlocked?

Sup all...
Simple enough question. I've spent many days doing searches here in XDA and google but haven't been able to find a clear answer. Or maybe I didn't look hard enough or understand the responses to others questions regarding this topic.
I recently got an S4 (i337m) from Telus. From what I understand, this is the Canadian model (jfltecan). I am not sure if it is unlocked or not however. I know that I should just use a sim from a dif carrier to test, but I don't have access to one at the moment. No one I know has a micro sim that is with a carrier I could use to test with.
I've installed TWRP and flashed Slimbean and afterward I flashed Paranoidandroid roms successfully if that is some sort of indication as to the lock/unlock state of the phone.
So is there any other way to tell? Is there a method of unlocking this phone other than using the *#0011# method or similar methods that I've tried and do not work. Is an Odin method available?
Thanks
If you got it from Telus, directly, 99.99% it's locked
The only way to confirm is by popping in a SIM from another carrier.
I think it depends on how u buy the device. I think if you get the phone on a contract, its locked, but i think if you purchase the device for full price, it should be unlocked. That's atleast how i think it works.
You are most likely sim locked. There is no Odin method to unlock. You should really just buy a code to unlock. Be very careful using the free unlock methods. After a number of attempts the phone will lock itself so you'll never be able to unlock. Others have also messed up their phones trying it.
Buy a code or even safer, FastGSM.com USB cable method to unlock
I am also on telus, if this works like the s3 unlock you need to be on the stock Rom, can be rooted but must be stock.check the s4 thread to be sure though. You can go back to the custom Rom after you unlock and the phone should still be unlocked
Your phone's boot loader is unlocked. Meaning we can install a custom recovery and install a custom ROM very easily. Your phone is Sim locked if you bought it from telus. This means you cannot insert a Sim card in your phone unless its telus. Any other carrier will not work. You can unlock your phone through Telus. They have restrictions on this however. You're better off buying an unlock code off the internet. Its fast and most likely cheaper and no it does not void warranty. Hope this helps
Thanks!
Just wanted to thank everyone for the replies/info.
My phone was sim locked. I did the easy method of purchasing an unlock code from a local shop here. All is good. I can use the phone on any supported GSM carrier and I am able to flash custom roms and what not.
Thanks again to all for the info. Much appreciated and it helped me increase my understanding on this topic.
-Talabis

[Q] Sim Unlock after Hard Reset

Hello,
I've purchased Galaxy Note 3 (SM-9005 Model) From Italy.
The device was locked to europe only,
but they have removed the lock by making a call for 5 minutes with their european SIM.
The phone is now unlocked for me and works, I can make calls etc.
I would like to Hard Reset the phone or change it's ROM,
but I'm afraid it will be locked again.
Do you know if it would stay Unlocked or not?
Bump.
LordEnlil said:
Hello,
I've purchased Galaxy Note 3 (SM-9005 Model) From Italy.
The device was locked to europe only,
but they have removed the lock by making a call for 5 minutes with their european SIM.
The phone is now unlocked for me and works, I can make calls etc.
I would like to Hard Reset the phone or change it's ROM,
but I'm afraid it will be locked again.
Do you know if it would stay Unlocked or not?
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Click to collapse
Nobody can guarantee you anything, but:
1) before writing a custom ROM be 100% certain you have a full backup of the "sensitive" partitions!!!
2) if the region unlock becomes your only problem you might be able to fix that again by either using an EU SIM or by writing to Samsung and asking for a code (there is a thread which has more details on it, Samsung Germany are by far the most professional and helpful from all of Samsung representatives in EU, ideally write them in German even just using Google translate). If you originally had a network unlock then things might be more complex (but I doubt that is the case since a network unlock code would also fix regional unlock) and if you (or the custom ROM) messes with the modem or other sensitive partitions you are your own and only specific backups of those can save you in an effective way.

does custom recovery/rom affect ability to unlock by code at later time?

hi all!!!
i have n910f on contract wich is locked to wodafone uk, its expensive to get it unlocked now as it cost 70pounds in uk, but i will get unlocking code from my carrier i september...
my question is does flashing custom recovery and custom rom based on orginal will affect ability to get it unlocked later?
i would like to flash cwm, custom rom and root it but im afraid that if i do so i wont be able to get sim lock off...
does anybody know ansfear if it will affect sim lock in any way?
regards
No, rooting won't affect the ability to unlock

[Q] AT&T N4 with simlock and custom rom?

Hi guys,
i've got an oportunity to buy a SGSN4. It comes from USA with the AT&T simlock. Is it possible to install a custom rom on this (i dont care about the warranty) with european language? Is it possible also to unlock this phone to use it in every network?
Waiting for your reply, thanks a lot
The att Note 4 has a locked bootloader. Only a limited root is available currently. It resets every reboot and supposedly disappears randomly between reboots. A permanent root is still trying to be obtained, but it isn't clear as to if it will ever be obtained or not.
No root means that you can't install ANY roms or kernels. There aren't even any for the ATT Note 4 because we don't have permanent root yet.
You CAN unlock the phone though. I don't know how personally though, but it can be done. Go to the ATT Note 4 forums and read through there.
Sent from my SAMSUNG-SM-N910A using Tapatalk

Is any work being done to unlock of the American Snapdragon (SM-G955U) Variant?

Is any work being done to try to unlock the bootloader of the SM-G955U model? Just got the phone so I'm out of the loop and was wondering what the hold up is. Bought a simple mobile version and put my T-Mbile sim in it. Works great so it is definitely carrier unlocked, but the bootloader is locked which means I cannot install a custom recovery. Not very happy with Touchwiz...
abel408 said:
Is any work being done to try to unlock the bootloader of the SM-G955U model? Just got the phone so I'm out of the loop and was wondering what the hold up is. Bought a simple mobile version and put my T-Mbile sim in it. Works great so it is definitely carrier unlocked, but the bootloader is locked which means I cannot install a custom recovery. Not very happy with Touchwiz...
Click to expand...
Click to collapse
As far as I no one's doing anything on that side of stuff, you can still get root and there is a custom rom out there by a user named Partcyborg, do not expect to see any aosp/lineageos roms out, there isn't events fully working one for the exynos version

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