SIM Unlock? - Samsung Galaxy S7 Questions and Answers

I've got a S7 that's happily running LineageOS 19, but I didn't realise the device was locked until switching network. I've got an MCK / NCK unlock code from eBay, however I just get "unlock unsuccesful" when entering. I've confirmed the IMEI I sent for the code is correct - the only thing I can think is that the custom rom might be causing problems but don't seem to be able to find similar threads on here. Do I need to go back to stock to remove the lock?

As suspected, needed to be downgraded to a rom based on stock and it then unlocked successfully.

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[Q] Please help me unlock my LG G2 D800 32GB locked to AT&T

I purchased LG G2 D800 (32gb) locked to AT&T network. I wanted to unlock it with a code and tried various webstites - 3 of them replied that they cannot offer any support, 2 emailed me back with an unlock code. Codes from those 2 different websites were the same, however it did not work - I now have the last attempt left to unlock it. I tried through one of the 'shops' as well, but they couldn't help either. Can you please advise if you have a reliable way of unlocking or obtaining a code for unlocking? Is there any other way to unlock this phone? Maybe at least a way of bringing the count of tries back to 1? I also tried ringing AT&T but they could not help, as I did not have an account with them - I'm stuck.
Thanks for any help or suggestions you may have,
PLEASE HELP!:crying:
hi guys, I still waiting for your answer... Please help me!:crying:
is it giving you an error when you enter the unlock code? are you on a custom rom? i had the same problem with mine when i first got it. I was running a custom rom and it wouldnt accept the unlock code. went back to a fully stock rom and it worked perfectly
r1nstang said:
is it giving you an error when you enter the unlock code? are you on a custom rom? i had the same problem with mine when i first got it. I was running a custom rom and it wouldnt accept the unlock code. went back to a fully stock rom and it worked perfectly
Click to expand...
Click to collapse
Thanks a lot for the advice. My phone wasn't rooted (I checked with an app) so I think its runs original rom (and it's Android 4.4.2), Baseband Version M8974A-AAAANAZM-1.0.190082 Kernel Version 3.4.0 Build Number: KOT49I.D80020c Software Version D80020c
I have the last try (10 out of 10) to put a correct unlock code. Have you got any other suggestions? Do you know how to change the number of attempts of unlock back to 1? Thanks
unlock code???
hubertzaw said:
Thanks a lot for the advice. My phone wasn't rooted (I checked with an app) so I think its runs original rom (and it's Android 4.4.2), Baseband Version M8974A-AAAANAZM-1.0.190082 Kernel Version 3.4.0 Build Number: KOT49I.D80020c Software Version D80020c
I have the last try (10 out of 10) to put a correct unlock code. Have you got any other suggestions? Do you know how to change the number of attempts of unlock back to 1? Thanks
Click to expand...
Click to collapse
How and where did you get an unlock code for the bootloader? I thought the ATT LG G2 32GB isn't capable of being unlocked.
hubertzaw said:
Thanks a lot for the advice. My phone wasn't rooted (I checked with an app) so I think its runs original rom (and it's Android 4.4.2), Baseband Version M8974A-AAAANAZM-1.0.190082 Kernel Version 3.4.0 Build Number: KOT49I.D80020c Software Version D80020c
I have the last try (10 out of 10) to put a correct unlock code. Have you got any other suggestions? Do you know how to change the number of attempts of unlock back to 1? Thanks
Click to expand...
Click to collapse
I would honestly say flash a completely stock rom...go back to square 1 with it. find the AT&T stock image. flash it back thru the LG program. then try again with the unlock code. its possible the previous owner just flashed a stock ROM to the phone. does it have stock recovery on the phone or CWM or TWRP?
justintime001 said:
How and where did you get an unlock code for the bootloader? I thought the ATT LG G2 32GB isn't capable of being unlocked.
Click to expand...
Click to collapse
hes not unlocking the bootloader. just carrier unlocking it.
hubertzaw said:
I purchased LG G2 D800 (32gb) locked to AT&T network. I wanted to unlock it with a code and tried various webstites - 3 of them replied that they cannot offer any support, 2 emailed me back with an unlock code. Codes from those 2 different websites were the same, however it did not work - I now have the last attempt left to unlock it. I tried through one of the 'shops' as well, but they couldn't help either. Can you please advise if you have a reliable way of unlocking or obtaining a code for unlocking? Is there any other way to unlock this phone? Maybe at least a way of bringing the count of tries back to 1? I also tried ringing AT&T but they could not help, as I did not have an account with them - I'm stuck.
Thanks for any help or suggestions you may have,
Click to expand...
Click to collapse
if you have'nt unlocked it yet try this ste i got it done for $1.9 the cheapest ever http://www.unlockcode247.com
Apologies for not writing back sooner. I only have 1 attempt left to put the code in, so I am reluctant to try another website, since 2 did not work.
I am worried I will lock the phone indifinitely. Does anybody know how to bring the count back to 1, so it was showing attempt 1 out of 10 for putting the sim lock code in? Thanks

sim unlock possible? UK Vodafone

Sooo,
I bought a used vodafone moto g 1st gen naively expecting to have an easy sim-unlock available in the forums - maybe I haven't found it yet?
The online unlock code vendors I tried have refunded me saying they can't do my IMEI so I'm a bit stuck.
I flashed cyanogen hoping a new kernel would do the magic but I guess the simlock is in a different partition?
I see that a couple years ago http://forum.xda-developers.com/showthread.php?t=2903823 some were considering how the sim unlock modified the utag partitions. Does anyone know of further progress, information or solutions to sim unlock a moto g?
Or has anyone found a vendor that has successfully provided a UK vodafone sim unlock code?
P.S. Will I need to revert to the stock rom and kernel to use a sim unlock code?
The official Vodafone UK unlock service should work: https://www.vodafone.co.uk/vodafone-uk/forms/unlock-code-request/
Thanks Professor Gibbins.
Unfortunately the Vodafone unlock process asks for the vodafone number that has been used with the phone. Perhaps it would work if I got a pay-as-you go SIM from them and then provided that number.
Fortunately I tried paying a third unlock code vendor - sim-unlock*.net - waited a couple days and they came through with a valid code. I had started with the cheapest ebay vendors, so maybe they just weren't legit?
In any case, if someone else is in similar circumstances, here's what I learned:
There doesn't seem to be any other solution for sim unlocking the moto G xt1032 than purchasing an unlock code from an online vendor or, in the case of you being the original owner, from the network you purchased the phone from
Having a couple online vendors say they cannot get you the code does not mean another cannot
Neither unlocking the bootloader, installing a different recovery (TWRP), nor flashing a Cyanogen ROM will help Sim unlock the phone
The code provided by the online vendor did not work when I had Cyanogen installed. Fortunately I had created a backup of the vodafone ROM (using TWRP) and restoring their android version/kernel allowed the code purchased online to sim unlock the phone
Finally, the SIM unlock done in the vodafone system was maintained after restoring my Cyanogen install. I hope this means the sim/network lock will not return. It might perhaps resurface if I did a system restore; hopefully then the same unlock code would work again?
Professor Gibbins said:
The official Vodafone UK unlock service should work:
Click to expand...
Click to collapse
mydadisrad said:
Thanks Professor Gibbins.
Unfortunately the Vodafone unlock process asks for the vodafone number that has been used with the phone. Perhaps it would work if I got a pay-as-you go SIM from them and then provided that number.
Fortunately I tried paying a third unlock code vendor - sim-unlock*.net - waited a couple days and they came through with a valid code. I had started with the cheapest ebay vendors, so maybe they just weren't legit?
In any case, if someone else is in similar circumstances, here's what I learned:
There doesn't seem to be any other solution for sim unlocking the moto G xt1032 than purchasing an unlock code from an online vendor or, in the case of you being the original owner, from the network you purchased the phone from
Having a couple online vendors say they cannot get you the code does not mean another cannot
Neither unlocking the bootloader, installing a different recovery (TWRP), nor flashing a Cyanogen ROM will help Sim unlock the phone
The code provided by the online vendor did not work when I had Cyanogen installed. Fortunately I had created a backup of the vodafone ROM (using TWRP) and restoring their android version/kernel allowed the code purchased online to sim unlock the phone
Finally, the SIM unlock done in the vodafone system was maintained after restoring my Cyanogen install. I hope this means the sim/network lock will not return. It might perhaps resurface if I did a system restore; hopefully then the same unlock code would work again?
Click to expand...
Click to collapse
Once the unlock is done via an UNLOCK CODE, or via hardware unlocking tools, then it is permanent, so you shouldn't need to worry about this at all, but that said, in case you experience SIM un-/lock issues, then reuse the code when trying to unlock the phone on an OEM-DISTRIBUTED ROM (stock ROM).

Has anyone unlocked AND used a Custom ROM after?

Hi,
I need to unlock my device and my guess is I need to go back to Stock for the Tmobile Unlock App to work (does this even work in the first place?). So my question is has anyone used this successfully and also rooted/flashed another ROM after the unlock and it stayed unlocked?
If there are things I need to avoid after a successful unlock, please let me know that as well.
Thanks!
interesting
Well I know my N5 is unlocked under stock rom. After flashing a custom rom I lose the unlock. I've posted in other threads about this but there has not been a good answer other then getting an unlock code which I don't know how you would for tmo. But flashing an intl custom rom will let you get to the menu to enter the code to unlock. The question though is how and where would you get an actual numerical unlock code for a tmo device? Cellunlocker and a couple others I've contacted are not able to get an actual code to use for the tmo N5.
DriftorX said:
Well I know my N5 is unlocked under stock rom. After flashing a custom rom I lose the unlock. I've posted in other threads about this but there has not been a good answer other then getting an unlock code which I don't know how you would for tmo. But flashing an intl custom rom will let you get to the menu to enter the code to unlock. The question though is how and where would you get an actual numerical unlock code for a tmo device? Cellunlocker and a couple others I've contacted are not able to get an actual code to use for the tmo N5.
Click to expand...
Click to collapse
Thanks for the response. Yeah, my phone needs to get unlocked cause I'm moving to Japan and I rather unlock it than buy a new phone...until the Note 8 comes out.
I tried to Odin back to stock, but I get a DRK fail so I can't lol

Unlock carrier locked S8+

I have a S8+ which is network sim locked to 3 (Sweden). Is there a way to unlock it and still run stock rom? i prefer not running a custom rom.
i already tried unlocking using https://www.samsungsimunlock.com/ without success...
im getting the message :
SIM Network Unlock PIN
Even though the unlock code i ordered from the above page said its permanently unlocked
djxtc said:
im getting the message :
SIM Network Unlock PIN
Even though the unlock code i ordered from the above page said its permanently unlocked
Click to expand...
Click to collapse
First, this is the correct message your phone should display and it should be unlocked by now.
However, there are a few things you could check:
1. Verify if the phone's IMEI is clean on websites like: http://imeipro.info
2. Remove any potential Region Lock (if your phone hasn't been used before, place a 5 min call with an accepted SIM card).
3. What message did you receive after inserting the code?
djxtc said:
I have a S8+ which is network sim locked to 3 (Sweden). Is there a way to unlock it and still run stock rom? i prefer not running a custom rom.
i already tried unlocking using https://www.samsungsimunlock.com/ without success...
Click to expand...
Click to collapse
This company us spam. No good and being cleared of xda

8T TMobile Unlock Oddities

Hi guys! Having some weird issues getting custom roms to flash on my 8T. I purchased the TMobile variant as it was the only one in stock, and I planned to use it with a TMobile mnvo. It's the KB2007 model. I purchased it outright, and went to unlock the bootloader - this was not possible as the device was locked. I reached out to TMobile on Twitter, gave them my phone number, IMEI and told them my story. They said it would take 2-5 business days for the unlock team to look at the request as I wasnt a direct TMobile customer. A few days later, I went into the android settings app, and attempted to permanently unlock the device and it unlocked. I rebooted and was able to toggle the developer setting to allow OEM unlocking, yay! Since that point, I've ran the kebabt -> kebab EU firmware MSM tool to convert the device to the EU firmware (as I've heard it's more stable, I'm US based though)
However, after that I've gone to replace oxygen os with Lineage, and I'm getting errors from fastboot about the device still being locked. Any ideas where to go from here?
You probably need to unlock your bootloader?
fastboot flashing unlock
AlmightyGrapefruit said:
Hi guys! Having some weird issues getting custom roms to flash on my 8T. I purchased the TMobile variant as it was the only one in stock, and I planned to use it with a TMobile mnvo. It's the KB2007 model. I purchased it outright, and went to unlock the bootloader - this was not possible as the device was locked. I reached out to TMobile on Twitter, gave them my phone number, IMEI and told them my story. They said it would take 2-5 business days for the unlock team to look at the request as I wasnt a direct TMobile customer. A few days later, I went into the android settings app, and attempted to permanently unlock the device and it unlocked. I rebooted and was able to toggle the developer setting to allow OEM unlocking, yay! Since that point, I've ran the kebabt -> kebab EU firmware MSM tool to convert the device to the EU firmware (as I've heard it's more stable, I'm US based though)
However, after that I've gone to replace oxygen os with Lineage, and I'm getting errors from fastboot about the device still being locked. Any ideas where to go from here?
Click to expand...
Click to collapse
You will get fastboot errors about unlocking critical partitions if you try to flash partitions other than boot, recovery and a few others while you're in bootloader mode.
For the rest you must be in fastbootd mode.
Chances are you need the unlock token from OnePlus themselves it takes a week

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