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[Q] Possible to Unlock?

Hi I wanted to buy this pone from amazon, but the thing is that I would buy the sprint versión with no contract and I don't live in the US, so my question is, can I unlock this pone to use it with any other company? like Movistar? I read that the pone was GSM so I thought it would be posible, however I won't take the risk of paying 590 dollars for a pone that I can't use, thanks

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Won't work. Sprint is NOT gsm
Sent from my GT-I9505 using xda premium

hyelton said:
Won't work. Sprint is NOT gsm
Sent from my GT-I9505 using xda premium
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if you dont know dont tell !! sprint s4 (gsm-cdma) but gsm its locked (low level lock )

LIAM83 said:
if you dont know dont tell !! sprint s4 (gsm-cdma) but gsm its locked (low level lock )
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What do you mean if I dont know dont tell? What does that supposed to mean?
I KNOW my Cellular Networks!
Sprint is a CDMA Network!
The ONLY part about sprint that is NOT CDMA is LTE which the sim card slot is LOCKED to sprint.
They MIGHT be a fix but right now there is NOT. Some of the older phones like the Moto Photon its not LTE but its a world phone and people could flash a few things and make it work, But only EDGE in the USA anyway.
But as of right now and problay for a while its NOT going to work.

hyelton said:
What do you mean if I dont know dont tell? What does that supposed to mean?
I KNOW my Cellular Networks!
Sprint is a CDMA Network!
The ONLY part about sprint that is NOT CDMA is LTE which the sim card slot is LOCKED to sprint.
They MIGHT be a fix but right now there is NOT. Some of the older phones like the Moto Photon its not LTE but its a world phone and people could flash a few things and make it work, But only EDGE in the USA anyway.
But as of right now and problay for a while its NOT going to work.
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Thats right sprint CDMA provider YES! but sprint announce more cdma-gsm phones (like blackberry) now sprint sell locked phones (htcone , S4)and this man need know maybe he unlock phone for him country(i think he live in spain(movistar as i know its spain company! right now he not can use gsm in this phone but i think i found solution maybe via nv maybe via modem patch !
sorry for my english )its not my own language !

LIAM83 said:
Thats right sprint CDMA provider YES! but sprint announce more cdma-gsm phones (like blackberry) now sprint sell locked phones (htcone , S4)and this man need know maybe he unlock phone for him country(i think he live in spain(movistar as i know its spain company! right now he not can use gsm in this phone but i think i found solution maybe via nv maybe via modem patch !
sorry for my english )its not my own language !
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Modem patch is not even possible with this phone right now... The phones are ONLY meant to run on GSM for LTE data and NOTHING ELSE

hyelton said:
Modem patch is not even possible with this phone right now... The phones are ONLY meant to run on GSM for LTE data and NOTHING ELSE
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bro you not right ! not only for lte data ! if we unlock this phone we can use it in at&t voice and data and t-mobile too ! belive me i know all about samsung phones !!

LIAM83 said:
bro you not right ! not only for lte data ! if we unlock this phone we can use it in at&t voice and data and t-mobile too ! belive me i know all about samsung phones !!
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I expect Sprint will provide a method soon to unlock the GSM and UMTS functions in the phone to be able to use it internationally. However, I don't expect the GSM and UMTS functions to operate inside the US. Sprint has always disabld them on GSM capable Android and iOS devices it sells.

I don't see why it wouldn't work for you as long as you can get it unlocked.
Sprint is not going to unlock it for you unless you are a long time customer or have the phone with them for 90 days.
hyelton is completely wrong though.. the sim does authenticate lte on sprint but also acts as a gsm sim internationally.
you can also remove the sim and insert any international sim once unlocked providing the carrier uses the correct bands.

hyelton said:
Modem patch is not even possible with this phone right now... The phones are ONLY meant to run on GSM for LTE data and NOTHING ELSE
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Click to collapse
You are all kinds of WRONG.
Sprint's GS4 is fully capable of voice and data on international GSM/HSPA+/UMTS 850/900/1900/2100MHz networks. You have to request Sprint to unlock your phone's sim (or find a work around if you're not a Sprint customer), but once unlocked you can pop in any international sim and it will WORK JUST FINE on international GSM networks, they don't have to support LTE. Heck the only thing preventing the SG4 from working on US GSM networks is Sprint locked the Sim from using USofA GSM carrier sim cards.
As long as the OP can get their Sprint SG4 sim unlocked, they can pop in their international sim and use the GSM in their country NO PROBLEM like any other GSM phone.
SO ONCE AGAIN, Sprint's SG4 has a fully functioning GSM modem that supports international carrier GSM/HSPA+/UMTS 850/900/1900/2100MHz bands!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
You would think someone with almost 2,000 posts and who made a statement like "I KNOW my Cellular Networks!" would know better. Do yourself a huge favor and actually know what you're talking about before you go spouting off again, because you really made yourself look like an ignorant fool.

BamAlmighty said:
You are all kinds of WRONG.
Sprint's GS4 is fully capable of voice and data on international GSM/HSPA+/UMTS 850/900/1900/2100MHz networks. You have to request Sprint to unlock your phone's sim (or find a work around if you're not a Sprint customer), but once unlocked you can pop in any international sim and it will WORK JUST FINE on international GSM networks, they don't have to support LTE. Heck the only thing preventing the SG4 from working on US GSM networks is Sprint locked the Sim from using USofA GSM carrier sim cards.
As long as the OP can get their Sprint SG4 sim unlocked, they can pop in their international sim and use the GSM in their country NO PROBLEM like any other GSM phone.
SO ONCE AGAIN, Sprint's SG4 has a fully functioning GSM modem that supports international carrier GSM/HSPA+/UMTS 850/900/1900/2100MHz bands!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
You would think someone with almost 2,000 posts and who made a statement like "I KNOW my Cellular Networks!" would know better. Do yourself a huge favor and actually know what you're talking about before you go spouting off again, because you really made yourself look like an ignorant fool.
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Well YES you can easily use your phone overseas, But it was POSTED in the Sprint Forum which is ONLY in the USA and in which using it does NOT apply in the USA. And to get the phone unlocked I`m not sure if a regular unlocking company would be able to do it someone with a sprint account would and it would be MUCH more trouble than just to pick up a ACTUAL GSM carriers Version of the phone.( I should had just said that to begin with) Its VERY pointless to TRY and want to use the sprint Version when they are SEVERAL OTHER varrients that are GSM they could have got to use.

EXCEPT... the op specifically said they wanted to purchase it from Amazon America to use on their country's GSM network.
Why they want to do that? WHO KNOWS, maybe it might be cheaper doing it this way, but that is what they want to do and despite all your unnecessary wrongful information, the OP can do what they asked as long as they can get the sim unlocked.

BamAlmighty said:
EXCEPT... again EXCEPT the op specifically said they wanted to purchase it from Amazon America to use on their country's GSM network.
Why they want to do that? WHO KNOWS, maybe it might be cheaper doing it this way, but that is what they want to do.
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I sell on Amazon and Most people wont ship out of the USA on Amazon. Mostly only Candia but Ive tried ordering a lot of things overseas and 90% I cant as they wont ship here

Amazon sells the Sprint for $599 this is probably why. I bought mine at Best Buy and had them price match Amazon for that price.
Sent from my SPH-L720 using Tapatalk 2

Yea but out of country cant buy FROM sprint...
Sent from my SAMSUNG-SGH-I337 using xda premium

Looks like everyone here is an expert in this matter but so far haven't seen a single link to reputable sources... OP call sprint international department and get answer straight from the carrier (888) 226-7212
Even IF the phone is capable of being used in GSM bands internationally, you would have to get it unlocked by sprint and they change policies all the time so just call..
Sent from my iPhone using Tapatalk 2

I got my phone unlocked for international use. I contacted sprint international services. I was initially told that you have to be activated for at least 90 days before they could unlock the phone but would forward my request to some department. After one day I got a email that my phone has been unlocked.

fusiondynamics said:
I got my phone unlocked for international use. I contacted sprint international services. I was initially told that you have to be activated for at least 90 days before they could unlock the phone but would forward my request to some department. After one day I got a email that my phone has been unlocked.
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They unlocked Sprint Galaxy 4?

mkang said:
They unlocked Sprint Galaxy 4?
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Yea.... but it ONLY works internationally AND you have to be a sprint customer.
The POINT I have been trying to get across is that people need to understand Sprint is a CDMA carrier and ONLY relies on GSM for LTE. I think what people think is that they are solely a gsm carrier like most of the world is but its NOT
Sent from my SGH-M919 using xda premium

Could i install another firmware (rom) instead of Verizon to s7 edge?

Hello Dears;
My cousen was bought S7 Edge from Verizon to me. I am living in Turkey. (Europe) And i would like to use rom with Turkish language.
As i know, all s7 edge phones selling with exynos processor in Turkey & Europe. Also they have different rom than USA.
I just want to install new rom which has been using on Europe. Could i change it? Is it possible or not?
Why not? / Why yes? Waiting for your answers. Thank you for all supports...

kaganmit said:
Hello Dears;
My cousen was bought S7 Edge from Verizon to me. I am living in Turkey. (Europe) And i would like to use rom with Turkish language.
As i know, all s7 edge phones selling with exynos processor in Turkey & Europe. Also they have different rom than USA.
I just want to install new rom which has been using on Europe. Could i change it? Is it possible or not?
Why not? / Why yes? Waiting for your answers. Thank you for all supports...
Click to expand...
Click to collapse
Not possible. Biggest reason, all European (actually anything not from North America or China) S7's are Exynos variants, all US (including verizon) ones are Qualcomm. Different architecture, different kernels, different ROMS. But aside from that, the Verizon one (same with all US ones) are bootloader locked, with signature checks on flash, meaning if the ROM isn't signed by Verizon (or maybe by specific Samsung keys) it won't flash on your phone.
Sent from my SM-T710 using Tapatalk

Thank you very much _Dennis_ for your perfect answer. I just need to be sure one more thinks;
* When i try to open my phone, i see verizon logo on boot. Are there any way to possible not see to that logo?
* The phone is giving "SIM car is not from Verizon Wireless" notification on all restarts. Also i don't want to see this notification automatically!
* I would like to use HD Voice feature but i couldn't As i understood, i need a Verizon Wireless account to enable this option. But i don't Do you know any way to open this option without Verizon account. Or any way to create account on Verizon Wireless without Verizon number. Because of we just using Turkish carriers gsm card on Turkey as well.
Thank you for your all supports and answer again.

kaganmit said:
Thank you very much _Dennis_ for your perfect answer. I just need to be sure one more thinks;
* When i try to open my phone, i see verizon logo on boot. Are there any way to possible not see to that logo?
* The phone is giving "SIM car is not from Verizon Wireless" notification on all restarts. Also i don't want to see this notification automatically!
* I would like to use HD Voice feature but i couldn't As i understood, i need a Verizon Wireless account to enable this option. But i don't Do you know any way to open this option without Verizon account. Or any way to create account on Verizon Wireless without Verizon number. Because of we just using Turkish carriers gsm card on Turkey as well.
Thank you for your all supports and answer again.
Click to expand...
Click to collapse
1: No, you need to change the boot animation for this and that is not possible without root.
2: No, again root is needed to modify system files. Or open a Verizon account.
3: Again no, you need a Verizon account to create one and a sim card to use their HD capable network.
Sorry for all the negative answers but that's the way it is with a locked phone and not on the phones network. #2 is a bit silly because the phone is network unlocked but they still do this to us.

Misterxtc said:
1: No, you need to change the boot animation for this and that is not possible without root.
2: No, again root is needed to modify system files. Or open a Verizon account.
3: Again no, you need a Verizon account to create one and a sim card to use their HD capable network.
Sorry for all the negative answers but that's the way it is with a locked phone and not on the phones network. #2 is a bit silly because the phone is network unlocked but they still do this to us.
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But my phone is unlocked :S That is how i using in Turkey with Turkish sim cards!

kaganmit said:
But my phone is unlocked :S That is how i using in Turkey with Turkish sim cards!
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Click to collapse
He means a bootloader locked phone. You can still have a sim unlocked phone, which you do, with a locked bootloader, which is preventing you from changing the things you want to.
Sent from my SM-G935V using Tapatalk

kaganmit said:
But my phone is unlocked :S That is how i using in Turkey with Turkish sim cards!
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It doesn't matter if it's carrier unlocked it's still Verizon branded. Like I said it's silly but that's the way they operate. We need it bootloader unlocked and then all these annoyances can be fixed. Until then we are stuck with what we have. Your only other option is to sell the phone you have and purchase one for the carrier you are currently on. Other than that you will have to put up with the sim card message and no HD calls.

Misterxtc said:
It doesn't matter if it's carrier unlocked it's still Verizon branded. Like I said it's silly but that's the way they operate. We need it bootloader unlocked and then all these annoyances can be fixed. Until then we are stuck with what we have. Your only other option is to sell the phone you have and purchase one for the carrier you are currently on. Other than that you will have to put up with the sim card message and no HD calls.
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I prefer to use it like this options Because of this phone is so expensive (approximately 1000€) in Turkey. Thank you for answer Have a nice day...

kaganmit said:
I prefer to use it like this options Because of this phone is so expensive (approximately 1000€) in Turkey. Thank you for answer Have a nice day...
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You are welcome. It's definitely not worth the loss of so much money. For the difference you could probable buy a nice used unlocked phone off Swappa. Good luck.

A T-Mobile S8 on Verizon

I've searched and cant find anything but the bands for either service. Which they use a lot of the same. Is a T-Mobile branded S8 usable on Verizon? Full 4G or not? Thanks!

its a gsm device. i believe the internet data part will work but not phone calls

the_rooter said:
its a gsm device. i believe the internet data part will work but not phone calls
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Darn. I was hoping since they all have the same model number that it would be possible.

steven1193 said:
I've searched and cant find anything but the bands for either service. Which they use a lot of the same. Is a T-Mobile branded S8 usable on Verizon? Full 4G or not? Thanks!
Click to expand...
Click to collapse
Call Verizon with your IMEI # and they can check if it's compatible with their network.
Sent from my SM-G950U using Tapatalk

steven1193 said:
I've searched and cant find anything but the bands for either service. Which they use a lot of the same. Is a T-Mobile branded S8 usable on Verizon? Full 4G or not? Thanks!
Click to expand...
Click to collapse
If you unlock it...it will work just fine.

steven1193 said:
I've searched and cant find anything but the bands for either service. Which they use a lot of the same. Is a T-Mobile branded S8 usable on Verizon? Full 4G or not? Thanks!
Click to expand...
Click to collapse
Did you ever figure out if this was possible? I can't seem to find a definitive answer.

Bump - anyone know if this will work?

As soon as I get mine unlocked I'll let you know as I have Verizon. All s8 models are the same but I'm sure the T-Mobile software has blocked Verizon bands. I'm sure if you flash Verizon software it will work just fine.

I have an unlocked T-Mobile Galaxy S8+ and it does not work on Verizon. I went into a Verizon store and they tried for an hour to activate the phone to no avail. They tried multiple different SIM cards and none of them worked. If anyone has better luck, please let me know. But they weren't able to figure it out at Verizon.

herbn said:
I have an unlocked T-Mobile Galaxy S8+ and it does not work on Verizon. I went into a Verizon store and they tried for an hour to activate the phone to no avail. They tried multiple different SIM cards and none of them worked. If anyone has better luck, please let me know. But they weren't able to figure it out at Verizon.
Click to expand...
Click to collapse
You need an unlocked Tmobile S8 or S8 plus.
Read the instruction in "Flash any carrier 100%" to flash to the carrier you desired, activate all bands.
Then use it on Verizon.

You need to flash your phone to Verizon to work. I did the exact opposite actually. I bought a Verizon device and flashed it fully to T-Mobile. Works perfect on T-Mobile because every US Galaxy S8 for the major carriers is SM-G950U. They support each other's bands, their just disabled by the carrier firmware.

ItzApp said:
You need to flash your phone to Verizon to work. I did the exact opposite actually. I bought a Verizon device and flashed it fully to T-Mobile. Works perfect on T-Mobile because every US Galaxy S8 for the major carriers is SM-G950U. They support each other's bands, their just disabled by the carrier firmware.
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Wifi calling too? Digits?
Sent from my SM-G955U using Tapatalk

blaine07 said:
Wifi calling too? Digits?
Sent from my SM-G955U using Tapatalk
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Click to collapse
Don't know about Digits because I don't use it, but Wi-Fi calling does work. I get the T-Mobile boot logo too.

How do I flash verizon firmware to an unlocked mobile s8?

Ari2020 said:
How do I flash verizon firmware to an unlocked mobile s8?
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I did not have any luck flashing it to the official Verizon Firmware, but I was able to flash it to the G955U1 firmware. The official unlocked US Firmware. Make sure your t mobile device is SIM unlocked by TMOBILE before you do this.
1. SIM unlock device by tmobile (pay off device, meet the 40 day requirement, etc).
2. Flash to G955U1 (S8+) or G950U1 (S8).
3. Insert Verizon SIM or ATT or any SIM.
4. Your phone will give you pop up warning saying it needs to restart to configure the new SIM.
5. Enjoy your new carrier.

Did you use a Verizon SIM and did you get both VoLTE and WiFi calling to work with the G955U1 FW?
my 2 cents
Aephel said:
I did not have any luck flashing it to the official Verizon Firmware, but I was able to flash it to the G955U1 firmware. The official unlocked US Firmware. Make sure your t mobile device is SIM unlocked by TMOBILE before you do this.
1. SIM unlock device by tmobile (pay off device, meet the 40 day requirement, etc).
2. Flash to G955U1 (S8+) or G950U1 (S8).
3. Insert Verizon SIM or ATT or any SIM.
4. Your phone will give you pop up warning saying it needs to restart to configure the new SIM.
5. Enjoy your new carrier.
Click to expand...
Click to collapse

equake said:
Did you use a Verizon SIM and did you get both VoLTE and WiFi calling to work with the G955U1 FW?
my 2 cents
Click to expand...
Click to collapse
I went to Verizon store and used one of their Verizon SIMS from a display model of the S8+. Voice over LTE works, Data works and I was not able to test Wifi Calling at the store. I even ran a speed test and had about 27mpbs down and the associate ran speed test on his phone and he got about 20mpbs down connected to the same server using the Speedtest app. I ran the LTE discovery app and shows me connected to LTE Band 13.
Hope all of this helps.

Bringing S8 to sprint?
Did you anybody try to use a TMobile or other branded S8 on Sprint? The Sprint customer support is not able to add the IMEI to their database for whatever reason.

@Aephel 
 @T33H00
Silly question, but does doing all this void Warranty? or is there no such issue anymore?
For example flashing Verizon Firmware onto a Tmobile Unlocked.

I unlocked my t-mobile s8 plus and attempted to use a Verizon SIM. It does NOT work. Verizon states that the IMEI is not in there database and that they cannot activate it.

Will this phone work on Verizon?

If you use this phone on Verizon, does it work properly? Did you need to do anything to the phone to make it work? Total noob here. Thanks for your help!

Sorry to post twice... The model I'm looking to use on Verizon is the 128GB global version.
I know Verizon can be a difficult carrier in terms of compatibility, so I thought it was worth asking. Thanks!

mrsardy said:
Sorry to post twice... The model I'm looking to use on Verizon is the 128GB global version.
I know Verizon can be a difficult carrier in terms of compatibility, so I thought it was worth asking. Thanks!
Click to expand...
Click to collapse
As long as the phone has proper band support and is unlocked, you can pop in your SIM card and be good to go. I checked the phone on the willmyphonework website, and it has all the bands for full Verizon support. So the global version will definitely work on Verizon. You just most likely won't have VoLTE or HD Voice calls.

Yes it works fine, including HD calls/VoLTE as long as VoLTE is configured properly in your Verizon account (this might occur automatically but I'm not sure).
1X and EvDO also work great and reception is very good.
I've attached a screenshot below with a Verizon prepaid SIM installed and VoLTE active in settings.
I don't think Verizon would activate a SIM with the Mi Note 2's IMEI(s) though...so you'll almost surely need a pre-activated SIM from a different Verizon-approved device.

G935T unlocked-running at&t firmware on att network. Can't get wi-fi calling working!

G935T unlocked-running at&t firmware on att network. Can't get wi-fi calling working!
I posted this over the Tmobile section, but realized it might be a better topic here in the AT&T section...
Sure would like some help from the brilliant minds on this board....
I bought an unlocked G935T a few months ago and have been using it on At&t (with the G935T firmware) for the last few months.
Recently, I needed to use wi-fi calling. Couldn't get it to work on TMo firmware so last night I flashed G935A firmware one it (QF3)
Firmware is working fine - everything seems to be working EXCEPT wi-fi calling. Damn you, AT&T!
I can use one of the free VOIP apps like Google Voice, of course, but when I call out I need to be able to use my cell phone number and really don't want to have to forward calls to GV every time I go into this particular building that doesn't have any cell reception.
Chatting with support this morning, they said it can't be done. I don't understand - if the hardware is the same across all US Variants, then why can't At&t firmware enable this feature? What am I missing??? GRRRRR

You have to run the AT&T firmware to get that feature.

jshamlet said:
You have to run the AT&T firmware to get that feature.
Click to expand...
Click to collapse
I AM running the AT&T firmware.

danoelise said:
I AM running the AT&T firmware.
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Sorry, I missed that. The next step is to call an actual AT&T rep (at a corporate store) and make sure your SIM is provisioned correctly.

jshamlet said:
Sorry, I missed that. The next step is to call an actual AT&T rep (at a corporate store) and make sure your SIM is provisioned correctly.
Click to expand...
Click to collapse
No worries. I actually went into a store yesterday. He pulled up a few threads on his tablet and basically told me it cannot be done. I have used the "please make sure my sim is provisioned correctly" in my conversations with support online and they always say that you can't provision a sim.
Should I just go in and ask for another sim?

danoelise said:
No worries. I actually went into a store yesterday. He pulled up a few threads on his tablet and basically told me it cannot be done. I have used the "please make sure my sim is provisioned correctly" in my conversations with support online and they always say that you can't provision a sim.
Should I just go in and ask for another sim?
Click to expand...
Click to collapse
It's definitely a SIM or account thing. With the A firmware, it is identical to the phones AT&T sells, so this is a bit of AT&T dickery. Keep escalating it with support until you either get it resolved, or give up all hope.

I forgot to mention that they told me it has to do with IMEI. If it's not an AT&T phone, the IMEI isn't in their database, and won't work. I agree- total dickery.

Yeah, unfortunately it's ultimately a carrier feature, and AT&T has chosen to be jerks about it. I can't imagine they really make that much selling handsets, but this isn't the first time they have pulled this sort of stunt. It's almost as if they are jealous of people calling Verizon the evil empire and decided to strike back.

danoelise said:
I forgot to mention that they told me it has to do with IMEI. If it's not an AT&T phone, the IMEI isn't in their database, and won't work. I agree- total dickery.
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Click to collapse
You have to call ATT and give them the IMEI from any ATT device and that will unlock the wifi calling. Has to be an official ATT device.
Sent from my SM-G955U1 using XDA-Developers Legacy app