Does flashing OEM rom remove sim locking? - Samsung Galaxy S9 Questions & Answers

I was looking at a sprint phone that i want to use with at&t and wanted to know if that would work

No. Locked is locked. Changing firmware does not do a carrier unlock.

AceM84 said:
I was looking at a sprint phone that i want to use with at&t and wanted to know if that would work
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Nope, the only way ive found is via paid services. I unlocked 3 of them for $10 each. Cannot discuss further on XDA tho

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[Q] Help with unlocking

Hello everyone,
I have the N9000T i have successfully rooted but i can not seem to get Regionlock Away to work. I am running effortless rom v6 4.4.2, baseband and build on nf1. i have tried a digicel sim card as long with an att sim. Can anyone provide a solution. i have already tried searching. Thanks
biglez_ said:
Hello everyone,
I have the N9000T i have successfully rooted but i can not seem to get Regionlock Away to work. I am running effortless rom v6 4.4.2, baseband and build on nf1. i have tried a digicel sim card as long with an att sim. Can anyone provide a solution. i have already tried searching. Thanks
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Region away doesn't work with kitkat...you'll need to use an online unlocking service (pay)
louforgiveno said:
Region away doesn't work with kitkat...you'll need to use an online unlocking service (pay)
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Thanks. When using the unlocking service is it permanent? i do a lot of rom changing and im just wondering if its worth it.
and do you recommend any particular unlocking service vendor?
biglez_ said:
Thanks. When using the unlocking service is it permanent? i do a lot of rom changing and im just wondering if its worth it.
and do you recommend any particular unlocking service vendor?
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Yes the unlock is permanent once unlocked, rom/radio/anything won't change that so you're good. I used cellunlocker.net , it was very fast and went through without a hitch. Got my unlock code in about 25 minutes flat ! $29.99
There are other places, but I read good reviews about cellunlocker.net.
Good luck

Who has an S6 unlocked with metropcs ?

If you have S6 from Tmobile unlocked with metropcs , can you please post a screenshot of "abour device" ?
batillojr said:
If you have S6 from Tmobile unlocked with metropcs , can you please post a screenshot of "abour device" ?
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hey, I have an S6 128GB originally TMobile, flashed the Metro ROM and its now unlocked. What do you want to see in particular in About Device?
digisolnc said:
hey, I have an S6 128GB originally TMobile, flashed the Metro ROM and its now unlocked. What do you want to see in particular in About Device?
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i wanted to see if the baseband changed from tmobile to a metropcs baseband
batillojr said:
i wanted to see if the baseband changed from tmobile to a metropcs baseband
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Baseband with the Metro ROM is G920T1UVU1AOCH, but the problem is, I flashed both of the S6's I have here to the Metro ROM to unlock them so I have no idea what the original baseband was lol I hope you do!
Any luck on the S6 Edge unlock? I scour the internet everyday for developments but I havent seen anything I feel like this S6 Edge I have is either going to sit here forever or Ill have to sell it as a blacklisted phone because its financed and I KNOW its going to get blocked.
digisolnc said:
Baseband with the Metro ROM is G920T1UVU1AOCH, but the problem is, I flashed both of the S6's I have here to the Metro ROM to unlock them so I have no idea what the original baseband was lol I hope you do!
Any luck on the S6 Edge unlock? I scour the internet everyday for developments but I havent seen anything I feel like this S6 Edge I have is either going to sit here forever or Ill have to sell it as a blacklisted phone because its financed and I KNOW its going to get blocked.
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the fact that baseband has a G920T1 means that it did changed the radio , while every damn firmware i tried never change the baseband ., is good to know though ... and if you have an S6 Edge try this before selling it .. ask to borrow someone's tmobile sim card and try to at least do a temporary unlock if that doesn't work then download the app VyprVPN select germany (i did) with the tmobile sim still in and try temporary unlock again,,, doing this at least it bought a month's use of my phone , maybe a solution will come up later on.
batillojr said:
the fact that baseband has a G920T1 means that it did changed the radio , while every damn firmware i tried never change the baseband ., is good to know though ... and if you have an S6 Edge try this before selling it .. ask to borrow someone's tmobile sim card and try to at least do a temporary unlock if that doesn't work then download the app VyprVPN select germany (i did) with the tmobile sim still in and try temporary unlock again,,, doing this at least it bought a month's use of my phone , maybe a solution will come up later on.
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So youre saying that when you flash the Metro ROM to it, its not changing your baseband? I used the one posted by UnlockBase. Were you able to successfully unlock yours?
And yeah, Ive tried the TEMP and PERM unlock on the S6 Edge. I put my TMobile dealer SIM in it hoping that would help as its a free $80 monthly demo line I get for selling TMobile service. I would gladly try that method, but since we sell these phones, a TEMP unlock wont help me I need a permanent solution so once I sell it, Ill know the customer wont have any issues down the road. I have both of the S6's up for sale now that they are unlocked, but I have always wondered if Samsung REGION LOCKS these phones. Ive tested my personal ATT line in it, and it works great, but alot of my customers on eBay export these phones overseas, so Im hoping these new Samsungs arent region locked :/
digisolnc said:
So youre saying that when you flash the Metro ROM to it, its not changing your baseband? I used the one posted by UnlockBase. Were you able to successfully unlock yours?
And yeah, Ive tried the TEMP and PERM unlock on the S6 Edge. I put my TMobile dealer SIM in it hoping that would help as its a free $80 monthly demo line I get for selling TMobile service. I would gladly try that method, but since we sell these phones, a TEMP unlock wont help me I need a permanent solution so once I sell it, Ill know the customer wont have any issues down the road. I have both of the S6's up for sale now that they are unlocked, but I have always wondered if Samsung REGION LOCKS these phones. Ive tested my personal ATT line in it, and it works great, but alot of my customers on eBay export these phones overseas, so Im hoping these new Samsungs arent region locked :/
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when you try to flash any firmware with odin it ends on FAIL.. you can flash rom with twrp but baseband remains the same ,, so i dont know if the unlock app from tmobile is tied in the bootloader or radio or something else ... so far i'll just enjoy the 30days left and see what happens after that ... cause after it accepted my att sim card a message will appear reminding me the unlock was to end on Jul01 and if i wanna to do permanent unlock, so i flash a firmware from a canada version G925W so the reminder went away but i dont know if that means that in 30 days i'll be locked again
batillojr said:
when you try to flash any firmware with odin it ends on FAIL.. you can flash rom with twrp but baseband remains the same ,, so i dont know if the unlock app from tmobile is tied in the bootloader or radio or something else ... so far i'll just enjoy the 30days left and see what happens after that ... cause after it accepted my att sim card a message will appear reminding me the unlock was to end on Jul01 and if i wanna to do permanent unlock, so i flash a firmware from a canada version G925W so the reminder went away but i dont know if that means that in 30 days i'll be locked again
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I gotcha. I did something similar. I flashed the international ROM on the S6 EDGE via TWRP and it told me the code is incorrect. I know the code is correct because if I ever it in with no SIM and the #7465625*638*# and put the code in it says successfull. This is SOOOOOO frustrating. The lock has to do with the radio or the bootloader/baseband.
batillojr said:
when you try to flash any firmware with odin it ends on FAIL.. you can flash rom with twrp but baseband remains the same ,, so i dont know if the unlock app from tmobile is tied in the bootloader or radio or something else ... so far i'll just enjoy the 30days left and see what happens after that ... cause after it accepted my att sim card a message will appear reminding me the unlock was to end on Jul01 and if i wanna to do permanent unlock, so i flash a firmware from a canada version G925W so the reminder went away but i dont know if that means that in 30 days i'll be locked again
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I am interested to see if that works which it may as the app is not there to retrigger the lock. You never know.
I currently have metro pcs and I bout an unlocked Samsung galaxy s6. My original Sim is too big so I have to go to metro to get a new one but the phone is not reading the new sim in order for them to program it. How do I fix this or get around this? Should I not let metro try to activate the phone?

ZVF unlock

No way to simunlock ZVF firmware yet?
No, you have to downgrade to ZV8 first.
dglaboi said:
No way to simunlock ZVF firmware yet?
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damiloveu said:
No, you have to downgrade to ZV8 first.
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Which at this point is unfortunately impossible still with ZVF ;(. You cannot do sim unlock hack or tether hack with ZVF. And you cannot downgrade to ZV8 without destroying the phone either. Pretty much nothing you can do with ZVF except to just return it
I gather at this point most LG G5 phones are off contract and paid for. you will probably not have problem having sprint sim unlock it domestically and internationally. I have to nag them a few times but they did it at the end and my phone was only added to the network for a few days (not the 50 days supposedly on the written policy)...... So I suggest you call them up and ask persistently to unlock it...
But this does not fix the issue of tethering. ZVF pretty much lock you out of the ability to change apn type for sprint so you can't add dun to force the g5 to tether.
So the only solution is to buy a new phone.... I did have to return a phone I bought on ebay. Make sure you send msg to all the sellers and keep asking them to check the firmware version so you can get firmware below ZVB. DONT GET ANYTHING ABOVE ZVB....
Its possible to unlock it with remotely services. Just find on google for those services you should unlock it but sim data will not work same as when sprint will unlock this phone officialy. If you doesn't find any service so here is the one where I was unlocked many of phones.
https://unlockerplus.com/product/lg-g5-ls992-zvf-sprint-network-unlock/
Shabby The Dev said:
Its possible to unlock it with remotely services. Just find on google for those services you should unlock it but sim data will not work same as when sprint will unlock this phone officialy. If you doesn't find any service so here is the one where I was unlocked many of phones.
https://unlockerplus.com/product/lg-g5-ls992-zvf-sprint-network-unlock/
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Good to know someone has figured out a way to unlock ZVF at least for voice. The problem is that still don't work for data. As well as you can't change the apn for sprint sim card to allow for free tethering with the hiddenmenu apk.
At this point, for anyone that wants to get sprint lg g5, the best thing is before you buy your phone, make sure to inquire about the software ver and make sure it's ZVA or less.

explaining the carrier switch capabilities (ATT->Tmobile)

I have a "carrier-locked" ATT note 10 (SM-N975UZKEATT) that I would like to use on Tmobile.
1) Is the only thing required to get the phone working with Tmobile a carrier flash? Do you really no longer need to unlock the device (carrier unlock)?
2) any guides that show this process from att to tmobile?
Thanks
rogue1ne said:
I have a "carrier-locked" ATT note 10 (SM-N975UZKEATT) that I would like to use on Tmobile.
1) Is the only thing required to get the phone working with Tmobile a carrier flash? Do you really no longer need to unlock the device (carrier unlock)?
2) any guides that show this process from att to tmobile?
Thanks
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You still need to get your device carrier unlocked before it will work on another carrier.
BladeRunner said:
You still need to get your device carrier unlocked before it will work on another carrier.
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Thanks for the clarification
rogue1ne said:
I have a "carrier-locked" ATT note 10 (SM-N975UZKEATT) that I would like to use on Tmobile.
1) Is the only thing required to get the phone working with Tmobile a carrier flash? Do you really no longer need to unlock the device (carrier unlock)?
2) any guides that show this process from att to tmobile?
Thanks
Click to expand...
Click to collapse
Adding a little more to this:
1.) As an option (if preferred) you can most likely just keep the firmware installed on the phone and use it as it is. Tmobile is rather friendly with BYOD compared to AT&T. The phone will reconfigure some settings based on the settings that the Tmobile SIM card will have on it. Once unlocked just put the Tmobile sim card in and that should be all it takes. You may need to double check the APN settings though to make sure they are complete and accurate.
2.) Just look/search/research and you will find the multitude of discussions and tutorials on this. The process is the same as on the S9+. You won't have any problems finding out how to do this.

Sprint SM-A505U Odin flash T-mobile SM-A505U1

I am thinking about buying a SM-A505U that is locked to Sprint network. Anyone know if I can just use ODIN to flash SM-A505U1 T-mobile firmware to get it to work on T-mobile? I am hearing from other people that the Sprint variant currently does not work on T-Mobile out of box and that they are paying for carrier unlock services to get it to work. While I know carrier unlock is an option, I also reads somewhere that it may be possible to flash the t-mobile firmware and that would essentially turn it into a t-mobile phone and lock it to t-mobile (Which I am Okay with). Where as a carrier unlock service would allow me to use any sim.
Anyone know if this is feasible? Is there an actual hardware difference between the SM-505U and SM-505U1? Or is it purely software?
skim32 said:
I am thinking about buying a SM-A505U that is locked to Sprint network. Anyone know if I can just use ODIN to flash SM-A505U1 T-mobile firmware to get it to work on T-mobile? I am hearing from other people that the Sprint variant currently does not work on T-Mobile out of box and that they are paying for carrier unlock services to get it to work. While I know carrier unlock is an option, I also reads somewhere that it may be possible to flash the t-mobile firmware and that would essentially turn it into a t-mobile phone and lock it to t-mobile (Which I am Okay with). Where as a carrier unlock service would allow me to use any sim.
Anyone know if this is feasible? Is there an actual hardware difference between the SM-505U and SM-505U1? Or is it purely software?
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i'm willing to try it .i have 2 a50 and 2 a10e i need to unlock from sprint and get them working on t-mobile.
Please let me know your findings.
skim32 said:
Please let me know your findings.
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if you help me out with the steps i'll be happy to. i'm a little bit rusty when it comes to doing this it's been a very long time since i have done anything to a phone lol .
drinkhere said:
i'm willing to try it .i have 2 a50 and 2 a10e i need to unlock from sprint and get them working on t-mobile.
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drinkhere said:
if you help me out with the steps i'll be happy to. i'm a little bit rusty when it comes to doing this it's been a very long time since i have done anything to a phone lol .
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Here is the link to firmwares. I recommend using the oldest one to minimize any major baseband updates.
https://www.sammobile.com/samsung/galaxy-a50/firmware/SM-A505U1/TMB/
Here is a good tutorial on how to use Odin. YouTube can also be helpful .
https://samsungodin.com/how-to-use-odin/
So uh... It work?
skim32 said:
Here is the link to firmwares. I recommend using the oldest one to minimize any major baseband updates.
https://www.sammobile.com/samsung/galaxy-a50/firmware/SM-A505U1/TMB/
Here is a good tutorial on how to use Odin. YouTube can also be helpful .
https://samsungodin.com/how-to-use-odin/
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Did this work at all? I have an a50 that I need to get my q-link to work on

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