[Q] Clarification on Region Unlocking G-920i - Galaxy S6 Q&A, Help & Troubleshooting

I purchased a Factory Unlocked G-920i (in US) and want to use it in Europe. Is it correct that I just need to make a 5 minute call in US with a US SIM card and it will be region unlocked permenantly? Will the phone "relock" if I do a factory reset or install a new ROM? If so, is there any way around this?
Thanks!

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[Q] Sim card unlock with rom changing

Hey,
If i change the rom of a xperia does the sim lock (only working from 1 operator) will it dissapear? What can I do to remove sim lock on the phone?
Changing your ROM will not simunlock your phone. Your carrier may give you the code to do it, or their are websites that you pay for an unlock code. Most of them are fairly cheap ($5-$10). The most expensive one I have seen is for the Note which is $25. That being said, once you are sim unlocked, changing a ROM or doing a factory reset will not re-lock the Sim.
Can unlocked s4 be updated to kitkat without re-locking?
lowandbehold said:
Changing your ROM will not simunlock your phone. Your carrier may give you the code to do it, or their are websites that you pay for an unlock code. Most of them are fairly cheap ($5-$10). The most expensive one I have seen is for the Note which is $25. That being said, once you are sim unlocked, changing a ROM or doing a factory reset will not re-lock the Sim.
Click to expand...
Click to collapse
Hi.. I have a 4.3 running, unlocked i377m(Canadian s4). It was not factory unlocked. I made it unlocked in a small store. It was rooted when i got it back. Is there any way to update it by flashing to kitkat? I cant get any updates from about phone menu. It says its phone is modded and can't update.
Any help would be appreciated!!
Thanks in advance

Network locked sim card inserted

My sister presented me this galaxy s6 phone from malaysia. I am from India when i inserted india sim card. I got the message network locked sim card inserted. I came to know from the internet all samsung phones are network locked, for that I have to make incomming or outgoing call for 5 mins. I inserted malaysia sim and (from india) made 3mins of call to malaysia and 2+ mins of call to my mobile in india. Inspite of this my mobile is not unlocked it is still locked. Please help me.
If i flash stock firmware from india will my s6 be automatically unlocked ??, without any side effects.
In internet I saw there are many sites which says they can provide unlock code but their charge is very high almost 50 USD. I have already spent almost 100RM for roaming calls. Please help in unlocking my phone.
Inserting the malaysia sim card will not work as the call has to be made through the network of the region the phone was bought. Using the malaysian sim in india is not enough as the call is still going through the indian phone network.
I already made a 3 mins call to Malaysia . Will it unlock if I ask to someone from Malaysia to make another 2 mins of call to me.
Only way to unlock a network locked S6 is to get the unlock code from your network or buy it online from reputable unlockers. Flashing ROMs will no remove the lock.
Suggest some reputable unlockers
roydok said:
Only way to unlock a network locked S6 is to get the unlock code from your network or buy it online from reputable unlockers. Flashing ROMs will no remove the lock.
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Can you please suggest me some reputable unlockers. After unlocking will i be able to original stock firmware / custom roms without getting unclocked.
reputable cheap unlockers
srahulmca said:
Can you please suggest me some reputable unlockers. After unlocking will i be able to original stock firmware / custom roms without getting unclocked.
Click to expand...
Click to collapse
reputable cheap unlockers
The problem you may have here is unlocking services unlock the phone from a specific carrier. The region lock is not the same as the carrier lock that these companies provide a service for. A quick look on google brings up no results for region unlocking. At the minute your only course of action is take the phone to a samsung repair centre and hope they will remove the region lock for you.
I took my phone to local mobile service center and he unlocked my phone (dont know how he did) and my phone is now rooted. Now my question is, is the unclock permanent and can i flash stock firmware safely without getting locked again.
Please confirm
srahulmca said:
I took my phone to local mobile service center and he unlocked my phone (dont know how he did) and my phone is now rooted. Now my question is, is the unclock permanent and can i flash stock firmware safely without getting locked again.
Click to expand...
Click to collapse
Can someone please confirm this.
Sim Unlock is needed once in a lifetime and it`s irreversible. Anyway I don't understand why was needed to root your phone for sim unlock. Normally you can reset, flash anything now and your phone will be sim unlocked.
What do you mean by reset ? we cannot remove the lock by flashing a new ROM.
why dose it come up restart phone when i swich sim cards on my unlocked galaxy s6 eage and dose this lose all othe data and save picuters and contects
Please i do also have S6 brought from USA to Ghana and when i tried put on a sim, it said Network locked sim. please what should i do?

Sim unlocking question

Hello, I just bought an Alcatel Onetouch idol 3, from my Romanian provider(Vodafone), as I saw in other threads over here, everyone's talking about sim unlocking on websites, but my question is..
Is there any way to unlock the sim via bootloader, or flashing another firmware ?
Thank you
I also tought of the next way:
Unlock bootloader via WinDroid, gain the supercid, then use the windows update utillity to make an firmware update to an unlocked firmware
What you think ?
Scutariu said:
I also tought of the next way:
Unlock bootloader via WinDroid, gain the supercid, then use the windows update utillity to make an firmware update to an unlocked firmware
What you think ?
Click to expand...
Click to collapse
No one has reported on this forum to my knowledge a successful sim unlocking from a provider purchased idol 3. Here in USA it comes out unlocked from Amazon. I think you are confusing bootloader and sim unlock because I know of no "firmware" method of sim unlocking short of having the unlock code....although I certainly could be wrong Since you have only so many tries the best method is get your provider to give you the unlock code. Here in the USA you can get one from your provider if your account is in good standing and it's been 90 days since your last request. Most folks tell them they are going overseas and want to be able to use the phone....something similar might work for you?.
I went to my provider, and checked it there, the unlocking code was 60e, because the contract was still available, anyway..
I went to a GSM, and the guy took me 10e to unlock it xD

Carrier unlocking question

Hi guys,
I need some clarification re: carrier unlocking and how it works.
I recently purchased a carrier unlocked G920T, and I was going to start messing with custom roms/kernels and other goodies. My question is: Will the phone revert back to being carrier locked if I do a factory reset or if I unlock the bootloader and flash custom roms?
I'm not a T-Mobile user, so I can't get another unlock code from them.
Thanks!!
Valantur said:
Hi guys,
I need some clarification re: carrier unlocking and how it works.
I recently purchased a carrier unlocked G920T, and I was going to start messing with custom roms/kernels and other goodies. My question is: Will the phone revert back to being carrier locked if I do a factory reset or if I unlock the bootloader and flash custom roms?
I'm not a T-Mobile user, so I can't get another unlock code from them.
Thanks!!
Click to expand...
Click to collapse
Once device is unlocked, it'll stay unlocked.

Question about after SIM unlock

Hello all, I had a terrible time getting my sim permanent unlocked due to not being a tmobile customer and do not want to go through that again. My question is I am wanting to convert my GM1915 (tmobile) into the international version to use on AT&T. If I follow the guide on here and then update to android 10 (or any update) will my sim unlock persist or does it reset back to locked?
Thank You for your time and help
Josh
cgi2099 said:
Hello all, I had a terrible time getting my sim permanent unlocked due to not being a tmobile customer and do not want to go through that again. My question is I am wanting to convert my GM1915 (tmobile) into the international version to use on AT&T. If I follow the guide on here and then update to android 10 (or any update) will my sim unlock persist or does it reset back to locked?
Thank You for your time and help
Josh
Click to expand...
Click to collapse
Hi bro, how did you get to unblock your phone

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