What are the downside of unlocking my t-mobile S8+? - Samsung Galaxy S8+ Questions & Answers

So I have a T-mobile S8+ (SM-G955U), and I am considering of unlocking it as I travel and would like to use other service providers (specially up in Canada). I was wondering are there an downsides to unlocking my phone. I am wondering especially in terms of updates. Will unlocking my phone prevent me from getting updates similar to rooting a phone?
Thank you.

two types of unlocking. The type you are doing is sim unlocking which would not prevent any updates or anything.

coldconfession13 said:
two types of unlocking. The type you are doing is sim unlocking which would not prevent any updates or anything.
Click to expand...
Click to collapse
Thank you for your response!
What is the other kind of unlock and what benefits does it offer?
Thank you

arulappan91 said:
Thank you for your response!
What is the other kind of unlock and what benefits does it offer?
Thank you
Click to expand...
Click to collapse
Unlocking the bootloader which can't be done on the T-Mobile version. It's the precursor to rooting your phone.

Related

How to unlock a carrier locked phone

I would like to buy a carrier locked phone in the USA.
I do not live in the USA so my question is, can I take this phone home and then flash a new ROM on it?
Would that take care of the lock?
Thanks!
ronr34 said:
I would like to buy a carrier locked phone in the USA.
I do not live in the USA so my question is, can I take this phone home and then flash a new ROM on it?
Would that take care of the lock?
Thanks!
Click to expand...
Click to collapse
Also,
When buying a no-contract phone, is it still locked?
Can I do the same to unlock this phone?
It depends on the phone and the carrier.
Planterz said:
It depends on the phone and the carrier.
Click to expand...
Click to collapse
I'm looking for a good new phone.
QuadCore and 5.0" and bigger.
Does anyone have any experience with this?
A specific model that this would work for?
ronr34 said:
I would like to buy a carrier locked phone in the USA.
I do not live in the USA so my question is, can I take this phone home and then flash a new ROM on it?
Would that take care of the lock?
Thanks!
Click to expand...
Click to collapse
Hi There,
Well Unlocking the Bootloader of your device Unlocks it to any Carrier.
If you want to know how to do that tell me which device you are using.
If Helped In Any Way Click THANKS.
DevRakeeß said:
Hi There,
Well Unlocking the Bootloader of your device Unlocks it to any Carrier.
If you want to know how to do that tell me which device you are using.
Click to expand...
Click to collapse
Carrier unlocking and bootloader unlocking are completely unrelated things.
ronr34 said:
I'm looking for a good new phone.
QuadCore and 5.0" and bigger.
Does anyone have any experience with this?
A specific model that this would work for?
Click to expand...
Click to collapse
Again, it depends on the phone and the carrier. Verizon phones are internationally unlocked out of the box. Which means if you buy it and try to use it in the US without unlocking it, it won't let you, but if you take it outside the USA, it's GSM unlocked. AT&T and T-Mobile phones can be unlocked and used globally too, but both require that they've been used with their service for a time. 40 days with T-Mobile, and with AT&T it has to be coming from an active or a prior account.
With AT&T and T-Mobile, you can purchase (through eBay or websites) unlock codes, which run like $30-40 for a flagship phone. Alternatively, you can buy new unlocked phones off eBay that once locked to a network, but the reseller bought the phone new, opened the box, unlocked the phone, then sells it. Or you can buy a used phone that has already been unlocked.
Don't buy a Sprint phone, it won't work.
IMO your best bet is to buy a Verizon "world phone", or buy a factory unlocked "international" version.
LTE bands are another matter. If you want LTE where you'll be taking it (assuming it's available), you might be best off with a Nexus 4 or 5, or a recent Sony Xperia Z - class model, as these have numerous LTE band compatibility.
Planterz said:
Carrier unlocking and bootloader unlocking are completely unrelated things.
Again, it depends on the phone and the carrier. Verizon phones are internationally unlocked out of the box. Which means if you buy it and try to use it in the US without unlocking it, it won't let you, but if you take it outside the USA, it's GSM unlocked. AT&T and T-Mobile phones can be unlocked and used globally too, but both require that they've been used with their service for a time. 40 days with T-Mobile, and with AT&T it has to be coming from an active or a prior account.
With AT&T and T-Mobile, you can purchase (through eBay or websites) unlock codes, which run like $30-40 for a flagship phone. Alternatively, you can buy new unlocked phones off eBay that once locked to a network, but the reseller bought the phone new, opened the box, unlocked the phone, then sells it. Or you can buy a used phone that has already been unlocked.
Don't buy a Sprint phone, it won't work.
IMO your best bet is to buy a Verizon "world phone", or buy a factory unlocked "international" version.
LTE bands are another matter. If you want LTE where you'll be taking it (assuming it's available), you might be best off with a Nexus 4 or 5, or a recent Sony Xperia Z - class model, as these have numerous LTE band compatibility.
Click to expand...
Click to collapse
Thanks for the info, but my question was how to bypass the locks on the phone.
I know I can buy it unlocked but it's way more expensive.
I thought that the lock was software related and not hardware so that burning a new ROM would fix this.
Is that the case?
ronr34 said:
I thought that the lock was software related and not hardware so that burning a new ROM would fix this.
Is that the case?
Click to expand...
Click to collapse
It is not the case. Carrier lock/unlock is in a different part of the device's firmware.
Planterz said:
It is not the case. Carrier lock/unlock is in a different part of the device's firmware.
Click to expand...
Click to collapse
So does that mean that a new ROM flash will not solve this?
ronr34 said:
So does that mean that a new ROM flash will not solve this?
Click to expand...
Click to collapse
How many times do I have to say the same thing?
Flashing a different ROM, be it from another carrier, or a custom ROM, does not give you the ability to carrier unlock a device.

Unlocking Samsung Devices (2018)

Greetings !
I'm a total novice in the world of SIM/Carrier unlocking, and am looking for a free solution. Are there any current, confirmed solutions to unlock Samsung devices programmatically? That is, a way to unlock without the use of a third-party service.
Thank you everyone!
P.S. If there aren't any which still work, please direct me to the most economical alternative.
Have you checked with your carrier about their options? If it's not under contract many will unlock it for you.
On what carrier is it locked? Most carriers will do the unlocking for free so you don't need to pay anything. Just ask them if they can do the unlocking for you.
unignostik said:
Have you checked with your carrier about their options? If it's not under contract many will unlock it for you.
Click to expand...
Click to collapse
Thank you, and I should have specified. I do resale, and am trying to create a process to seamlessly unlock Samsung phones that I come across.

At&t pixel 5 is carrier-locked

Does anyone know an unofficial way to unlock this? Otherwise it's going back.
Thanks
joemommasfat said:
Does anyone know an unofficial way to unlock this? Otherwise it's going back.
Thanks
Click to expand...
Click to collapse
Is it financed, or did you buy it outright? Mine is financed, but I assumed (like an idiot, after all this is at&t) that I would be able to unlock it after paying it off. Please don't tell me I'm stuck.
Mine is financed, but I have 14 days to return it. I thought it was a deal at $450, but if I can't root it, I'll have to get an unlocked one.
I'm not from the US but I think people on the OP7Pro would call up and saying there are going on a business trip abroad so could they please have the device unlocked.
It was a bit of a lottery if they got someone chill who would do it. The other option is to pay it off.
That might have been another US network though.
Sent from my Pixel 5 using XDA Labs
rav101 said:
I'm not from the US but I think people on the OP7Pro would call up and saying there are going on a business trip abroad so could they please have the device unlocked.
It was a bit of a lottery if they got someone chill who would do it. The other option is to pay it off.
That might have been another US network though.
Click to expand...
Click to collapse
This was the locked t-mo model, and that's how I got mine unlocked. I don't work at at&t anymore but when I did there would be no way to unlock it without it being paid off. However I was contracted to work with at&t and not directly employed by them, maybe someone would have permission to do so I'm just doubtful.
joemommasfat said:
Mine is financed, but I have 14 days to return it. I thought it was a deal at $450, but if I can't root it, I'll have to get an unlocked one.
Click to expand...
Click to collapse
Carrier locked is not the same as bootloader locked. As long as you can toggle the unlock bootloader setting in the developer options menu, you can root. You just can't insert the SIM of another carrier until your device is paid off.
You cannot toggle the OEM unlocking switch on carrier locked devices
joemommasfat said:
Mine is financed, but I have 14 days to return it. I thought it was a deal at $450, but if I can't root it, I'll have to get an unlocked one.
Click to expand...
Click to collapse
LOL, you just now discovered that carrier locked phones can't be rooted?
Tel864 said:
LOL, you just now discovered that carrier locked phones can't be rooted?
Click to expand...
Click to collapse
No, I discovered when I received the phone that at&t was carrier locking this phone. I was asking if anyone had found a way to side step this.
Tel864 said:
LOL, you just now discovered that carrier locked phones can't be rooted?
Click to expand...
Click to collapse
It's amazing the number of people who still don't know that carrier incentivized devices are locked and the exploit ship has long ago sailed away into the sunset.
l7777 said:
It's amazing the number of people who still don't know that carrier incentivized devices are locked and the exploit ship has long ago sailed away into the sunset.
Click to expand...
Click to collapse
What's truley amazing is that I thought I could ask a question on this forum without a bunch of 1337 know-it-alls being condescending.
joemommasfat said:
What's truley amazing is that I thought I could ask a question on this forum without a bunch of 1337 know-it-alls being condescending.
Click to expand...
Click to collapse
Apologies, no condescension intended. It looks like you've been rooting devices all the way back to the HTC M8. That may well have been one of the last devices that could be bootloader unlocked via exploit. I find it hard to believe that you have been active on XDA all this time and never read any posts regarding bootloader unlocking of Verizon branded/locked devices. The answer regarding bootloader unlock and root has been the same for many years now. Thus my statement that I'm amazed people are still not aware of this.
I didn't know that either. Guess all the phones I've purchased have been unlock devices.. My last phone was a samsung note 10 whick couldn't be unlocked.
if pixel 5 is anything like pixel 4 then the oem bootloader unlock option is tied to the sim lock status. for example my p4 was carrier lock to EE but i paid it off right away so i can sim unlock. becuz i read that once sim unlocked, the oem unlock toggle ungreys itself. this is exactly what happened and i was then able to unlock bootloader.
i read posts about at&t models when early researching the p4 and the way i remember it being explained was it is like apple unlocking system. the serial gets whitelisted for unlocking on google servers which then sim unlocks phone. but this also controls the oem unlock toggle! so basically sim lock status = oem unlock toggle ability status. but again this was for p4.
if youre willing to pay it off early you should be able to unlock. im debating going to p5 because of batteyr life on p4. otherwise love the phone. choices choices! anyway hope this info helps mate, good luck
vdevl said:
if pixel 5 is anything like pixel 4 then the oem bootloader unlock option is tied to the sim lock status. for example my p4 was carrier lock to EE but i paid it off right away so i can sim unlock. becuz i read that once sim unlocked, the oem unlock toggle ungreys itself. this is exactly what happened and i was then able to unlock bootloader.
i read posts about at&t models when early researching the p4 and the way i remember it being explained was it is like apple unlocking system. the serial gets whitelisted for unlocking on google servers which then sim unlocks phone. but this also controls the oem unlock toggle! so basically sim lock status = oem unlock toggle ability status. but again this was for p4.
if youre willing to pay it off early you should be able to unlock. im debating going to p5 because of batteyr life on p4. otherwise love the phone. choices choices! anyway hope this info helps mate, good luck
Click to expand...
Click to collapse
Thanks for that. Unfortunately if you pay it off early, you have to pay full price (which is somehow more than buying it straight from google). The discounted price only applies if you submit to the 30 month lock in. I returned the phone. Guess I'm sticking with the trusty 2xl for a little longer.
The carrier unlock and SIM unlock are tied together for T-Mobile and AT&T, only Verizon has the "OEM unlock" permanently stuck to OFF and they will not unlock it. I think they need to be pressured but it will take work. They have no excuse.
But AT&T and T-Mobile will unlock the OEM toggle when they SIM unlock, it was confirmed with Pixel 4 when they started selling those carrier-locked. Just usually have to pay off unless you can convince them early.
FYI....T-Mobile only sells the 4a 5G, not the 5. Could change as 5 stock comes back. Short supply right now.

Question Rooting/Bootloader Unlock for T-Mo variant

Hey all,
My family's looking at switching to T-Mo as my son's in the military and that have a great plan for that. I've always had unlocked OP phones, so the T-Mo variant is new to me. I've seen there's different things you had to do to unlock it.
Is it rootable without the SIM unlock? And the only way to unlock the bootloader is to have the SIM unlocked, correct?
And wasn't there a way to get it unlocked if you're a developer - even if it's not paid off?
Just looking at my options you see if T-Mo would be doable for me.
Thanks!
How To: Unlock the T-Mobile Bootloader
Hello all, this is a quick and simple guide to unlocking your T-Mobile locked bootloader. Just a reminder: unlocking the bootloader will wipe your data. The instructions here will apply to all T-Mobile OnePlus devices. Unlock your SIM. Some...
forum.xda-developers.com
Applies to the 9 as well.
Honestly man, it's just easier to have the guy on here do it for you. T-mobile seem to be real pricks when it comes to unlocking these phones.
Just make sure to throw him a few bucks cause he will save you a huge frustration
craznazn said:
How To: Unlock the T-Mobile Bootloader
Hello all, this is a quick and simple guide to unlocking your T-Mobile locked bootloader. Just a reminder: unlocking the bootloader will wipe your data. The instructions here will apply to all T-Mobile OnePlus devices. Unlock your SIM. Some...
forum.xda-developers.com
Applies to the 9 as well.
Click to expand...
Click to collapse
Hello! I have unlocked the bootloader, how to root T-MOBILE ONEPLUS 9! I don’t have boot.img
Bumping
I saw that there's an MSM tool to convert the TMo version to the Global version.
Of course this is after the SIM unlock.
I've done some reading but I'm not sure I'm understanding.
I seem to remember there was something weird about the modems on TMo's version. Does the conversion take care of that so it's all "normal" after that?
And I take it I can unblock the bootloader normally after that too, correct?
I've worked on my son's unlocked 9 and that's all fine. But I'll a little confused on TMo's. Never worked with out and we're in the process of switching over.
Just wondering so I can determine off I'll get TMo's or wait a bit to get the unlocked version.
Thanks,
Super
Josh McGrath said:
Honestly man, it's just easier to have the guy on here do it for you. T-mobile seem to be real pricks when it comes to unlocking these phones.
Just make sure to throw him a few bucks cause he will save you a huge frustration
Click to expand...
Click to collapse
Absolutely, I could not get them to unlock my 9 despite them doing so on my 7 pro and 8. Something definitely changed and the dude doing helping out on here saved me.

Question OEM unlocking on a Pixel 7 pro? Verizon

Any tips on how to enabling the OEM unlocking on a Pixel 7 pro? Verizon
Skeeter300blackout said:
Any tips on how to enabling the OEM unlocking on a Pixel 7 pro? Verizon
Click to expand...
Click to collapse
You can't unlock the bootloader on Verizon models.
Wow, not all? No hacks or anything.
Nope
Well that sucks, I guess i have to take this dam thing back.
How about T-Mobile? Unlock bootloader option is greyed out
Beddadizi619 said:
How about T-Mobile? Unlock bootloader option is greyed out
Click to expand...
Click to collapse
That's how the Verizon one is. I've seen some video on youtube on how to possibly enable it.... but nothing works. Lughnasadh is correct.
Beddadizi619 said:
How about T-Mobile? Unlock bootloader option is greyed out
Click to expand...
Click to collapse
For T-Mobile you have to be carrier unlocked first before you can unlock the bootloader. This usually involves paying off the phone and then contacting the carrier to have them Carrier unlock it.
Beddadizi619 said:
How about T-Mobile? Unlock bootloader option is greyed out
Click to expand...
Click to collapse
I got my pixel 7 pro sim unlocked through the chat function of the T-Mobile app. From there I was able to enable OEM unlock. No need to pay it off, just try and get a good rep in the chat/be abundantly friendly
Beddadizi619 said:
How about T-Mobile? Unlock bootloader option is greyed out
Click to expand...
Click to collapse
You have to get TMobile to do a permanent sim/network unlock. They do it over the phone. They make you follow specific rules though, device has to be payed off and you have to have been with T-mobile for a specific amount of time...... If you get a tech support guy who just doesn't care then you may get lucky. I just kept calling until someone did it for me.
Lughnasadh said:
You can't unlock the bootloader on Verizon models.
Click to expand...
Click to collapse
Could have if they rooted before letting the phone be booted with a sim card. Verizon carrier unlocks at 6 months paid off or not. You don't have to ask it just happens but if you need to be 100% sure then ask.
I remember getting the first XL and without thinking I booted it up with the sim, it updated and bye bye unlock bootloader option. Thankfully my son also wanted one so we just swapped. I rooted before anything else, then put my sim in and didn't use ota updates because I didn't want the bloat from Verizon.
d0x360 said:
Could have if they rooted before letting the phone be booted with a sim card. Verizon carrier unlocks at 6 months paid off or not. You don't have to ask it just happens but if you need to be 100% sure then ask.
I remember getting the first XL and without thinking I booted it up with the sim, it updated and bye bye unlock bootloader option. Thankfully my son also wanted one so we just swapped. I rooted before anything else, then put my sim in and didn't use ota updates because I didn't want the bloat from Verizon.
Click to expand...
Click to collapse
That was for the OG XL. We're talking about the Pixel 7/Pro here (also applies to the 3-6 series as well)(some say they found an exploit for the 2). Carrier unlocking is irrelevant in this case.
Lughnasadh said:
That was for the OG XL. We're talking about the Pixel 7/Pro here (also applies to the 3-6 series as well)(some say they found an exploit for the 2). Carrier unlocking is irrelevant in this case.
Click to expand...
Click to collapse
Changed it again huh? I know carrier unlocking is irrelevant but they were talking about it and I knew the vzw info because I had them unlock a phone then they pushed an app to it and that was that.
I have 2 7 pros I need to root that will be going on Verizon but I'm not putting the sim in until I'm done setting up either way. It's bloat free and staying that way. I'm probably switching to fi if the service is good here. I'll save a ton of money on just 2 lines.
d0x360 said:
Changed it again huh? I know carrier unlocking is irrelevant but they were talking about it and I knew the vzw info because I had them unlock a phone then they pushed an app to it and that was that.
I have 2 7 pros I need to root that will be going on Verizon but I'm not putting the sim in until I'm done setting up either way. It's bloat free and staying that way. I'm probably switching to fi if the service is good here. I'll save a ton of money on just 2 lines.
Click to expand...
Click to collapse
It doesn't matter if you put the SIM in yet or not. What matters is where you got the phone from - each carrier has a different model number. Did you get the phones from Verizon? Then you're out of luck, no bootloader unlocking, no root. Did you get them from Google? Then it's easy, just follow guides on here.
And as others have mentioned, T-Mobile allows you to unlock your phone but it almost always requires that you have the device on active line for 60 days and that you have paid for it in full.
bobbarker2 said:
It doesn't matter if you put the SIM in yet or not. What matters is where you got the phone from - each carrier has a different model number. Did you get the phones from Verizon? Then you're out of luck, no bootloader unlocking, no root. Did you get them from Google? Then it's easy, just follow guides on here.
And as others have mentioned, T-Mobile allows you to unlock your phone but it almost always requires that you have the device on active line for 60 days and that you have paid for it in full.
Click to expand...
Click to collapse
Of course not, I don't trust Verizon for even a brief second. I bought a non carrier variant at best buy. I also bought a fi sim because I want to quit Verizon. We pay something like $158 a month for 2 lines and 4 gigs of shared data. Here they have the best service by far but I'm near wifi 99% of the day so it's not a worry.
Hell last month we used 0.68 gigs of data though I saved 30 using Adguard.
I've been rooting since the G1 so I don't forsee any problems but I'm looking for changes like you mentioned and others have...
Really miss those days especially once the Nexus one was out.
Everything was easier to do and there were tons of custom ROM options. With TWRP I'd make an image then flash a new ROM and possibly kernel and be tinkering in settings in under 3 min. It's a shame the scene has shrunk so much but there is still tons of quality stuff which is always nice.
d0x360 said:
We pay something like $158 a month for 2 lines and 4 gigs of shared data.
Click to expand...
Click to collapse
Wow that's crazy. I pay that same amount for 6 lines on TMobile with unlimited everything.
d0x360 said:
Everything was easier to do and there were tons of custom ROM options. With TWRP I'd make an image then flash a new ROM and possibly kernel and be tinkering in settings in under 3 min. It's a shame the scene has shrunk so much but there is still tons of quality stuff which is always nice.
Click to expand...
Click to collapse
The old days are gone unfortunately. People should consider themselves lucky if they can even get a custom recovery for their device.
I'm perfectly happy with stock Pixel rom. The only reason I root is for custom kernel and some extra control over the apps on my device.
The benefits of rooting and/or unlocking the bootloader have diminished greatly overtime.
d0x360 said:
We pay something like $158 a month for 2 lines and 4 gigs of shared data.
Click to expand...
Click to collapse
Not sure what plan your on? We're on Verizon and pay that for 4 lines with unlimited everything.
Apparently even AFTER Carrier Unlocking Pixel 7 Pro, Bootloader is NOT Unlockable, under any circumstance. VZW is pointing at Google and Google is pointing at VZW. I am waiting for a reply or call back from a Google Supervisor, because it should be clearly noted on the VZW Box that even after Carrier Unlocking device, BL CANNOT be Unlocked under any circumstance. I smell a class action lawsuit against Google and/or VZW for Pixel Customers who are unable to OEM Unlock Devices after Carrier Unlocking. Anyone want in? I am hoping I get the right Google Supervisor who will warranty exchange device for another Unlocked or any other Branded Pixel 7 Pro....
AndroidAddict420 said:
Apparently even AFTER Carrier Unlocking Pixel 7 Pro, Bootloader is NOT Unlockable, under any circumstance. VZW is pointing at Google and Google is pointing at VZW. I am waiting for a reply or call back from a Google Supervisor, because it should be clearly noted on the VZW Box that even after Carrier Unlocking device, BL CANNOT be Unlocked under any circumstance. I smell a class action lawsuit against Google and/or VZW for Pixel Customers who are unable to OEM Unlock Devices after Carrier Unlocking. Anyone want in? I am hoping I get the right Google Supervisor who will warranty exchange device for another Unlocked or any other Branded Pixel 7 Pro....
Click to expand...
Click to collapse
Good luck getting a class action because you can't bootloader unlock your phone. It's been this way with phones on Verizon for many years now. Never buy a Verizon branded phone if you want to unlock the bootloader.
AndroidAddict420 said:
Apparently even AFTER Carrier Unlocking Pixel 7 Pro, Bootloader is NOT Unlockable, under any circumstance. VZW is pointing at Google and Google is pointing at VZW. I am waiting for a reply or call back from a Google Supervisor, because it should be clearly noted on the VZW Box that even after Carrier Unlocking device, BL CANNOT be Unlocked under any circumstance. I smell a class action lawsuit against Google and/or VZW for Pixel Customers who are unable to OEM Unlock Devices after Carrier Unlocking. Anyone want in? I am hoping I get the right Google Supervisor who will warranty exchange device for another Unlocked or any other Branded Pixel 7 Pro....
Click to expand...
Click to collapse
Buying devices from carriers (specifically from AT&T or Verizon) and expecting them to have an unlockable bootloader: https://media.tenor.com/AQz3_zaiD14AAAAM/hysterical-laughter.gif

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