AT&T new SIM card - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

Hello everyone,
I would like to get a new SIM card from att for my galaxy s4 using safestrap and gpe rom, do i need to bring my phone with me or just the SIM card? Do they check if im on Stock? If they do, how do i get a new SIM ?
Thank you for reading this.

If you're the primary account holder, I.e. paying the bills, go into their corporate office* and just ask for one. You don't need to bring your phone, old SIM, or anything. You might need a photo ID. AT&T provides a service. You pay for that service. They have to make that service available you, no matter the device. AT&T discounts and locks their devices so you can't go to other carriers, but doesn't care if you use unlocked device from other carriers, international, flip phone, etc...
*corporate office are different from AT&T authorized stores. Corporate stores will give you free SIM where as the authorized retailer may charge $5-$15. Always call and ask before making the trip. You can find corporate stores directly from their website.

Related

Mexico travel

I have a trip to Mexico planned for next month. I know my S5 is global. Verizon customer service told me I didn't need to make any changes to my plan to use my phone in Mexico that I only had to get a foreign SIM card, and usage would be simply applied to me bill. Can someone please explain this process a little better to me please.
Sent from my SM-G900V using XDA Free mobile app
Hi, the reasons I own a Verizon S5 are, first, because I didn't know it would be from Verizon, and second, because it was 45% cheaper than buying directly from my carrier, here in Mexico (Iusacell, BTW).
I guess you should go to the attention center of the carrier of your choice (Telcel, Movistar, Iusacell, Unefon, ¿Virgin?), and ask them if they can give you such a SIM, so you are charged directly by Verizon. They might still charge ~$100MXN (~7.6 USD) just for the SIM.
I don't know if your Verizon Chip will work here, or which carrier is going to provide you with the service.
As a last resort, you can do what I did... buy a SIM with whatever carrier you prefer from the avobe listed, insert it and use it... (you might want to redirect your phone calls to this SIM's number while you're here...)
You might also need to set up your APN... go to settings->more networks->Mobile networks->Access Point Names and click "+"....
You can fill the settings by googling "APN Mexico" or so.

S4 with Straight Talk - Verizon or T-Mobile

So I need a phone for a while on a pre-paid cash only plan. I was going to pick up a straight talk card from Walmart. I have 2 old Samsung S4 phones from Verizon and T-Mobile. Will the sim card activation chip I get work on either one of them, or does it have to be specific to the previous carrier. Is there an advantage to going with one or the other. I would prefer to put my own rom on there if possible since it is such an old phone. Is one going to be better suited than the other. As far as I know, both phones are out of contract. I know for sure the Verizon phone is already unlocked via verification from Verizon.
Thank you.
If you're buying an activation package from WalMart ($45 airtime card plus SIM), it should come with multiple SIM cards for Verizon, AT&T, and T-Mobile. Thus you can use the service on any phone. If it doesn't, you'll likely have a GSM SIM, meaning you would need to use the T-Mobile S4 to get service.
The advantage to using Verizon is access to Verizon's network, which is the largest in the country. The disadvantage is that your LTE speeds are throttled to 5MBps. With T-Mobile, your network is much smaller, but your LTE I don't believe is throttled. I personally would take the time to carrier unlock your T-Mobile device (see the thread we have on unlocking phones in the General section), and then use the AT&T SIM. With AT&T, you get a network nearly as large as Verizon, plus LTE is not throttled.
As to ROMs, you're simply going to have to try them. Regardless of the ROM you use, so long as you know how to set up an APN in settings, you're good. Straight Talk changes their APNs from time to time, and the ROMs don't always use the latest APN.
Very good information and exactly what I was looking for. One more question on that if you don't mind. If I start out on Straight talk with the AT&T, can I switch over to Verizon a week or two later effortlessly, or would I need to do something to switch sims?
I do not know how to change APN's, but I am sure I can find the answer to that using search.
Thank you.
If you wanted to switch over to Verizon from AT&T, you would need to transfer your service from the AT&T SIM to the Verizon SIM. To do this, you have to go online to Straight Talk's website. Now, while they do offer an automated procedure to do this, the best thing to do is open up a chat window to one of their support reps, and have the support rep process the service swap.
Keep in mind two things.
Once you switch SIM cards, the old SIM is no longer usable. Should you change your mind and want to go back to AT&T, you would need to purchase an AT&T SIM off Straight Talk's website. They normally charge $15 plus shipping for the privilege, but if you hit it right you can often get the SIM cards for a dollar plus shipping, which is somewhat more palatable. I will say that when you get your next phone, you'll likely have to get a Nano SIM. However, you can then go onto Amazon and purchase a SIM adapter, just in case.
I am a person who believes in getting everything that you pay for, and with Verizon, a throttled LTE service doesn't qualify as getting everything that you pay for. Thus, I do not recommend switching to Verizon, ever. Stay with AT&T.
Ok. Good advice. Thank you.
The only reason I wanted to try both was because I am in a high rise where service can be sketchy. Not sure which one will work best up here. I currently have Sprint which does not work at all.

Is my sprint S8 seriously locked to sprint FOREVER?!

Hi guys.. So I bought a Samsung Galaxy S8 from Best Buy Mobile last month. I had to use sprint because at&t (my fav. carrier) would not finance me on the phone. I was told if I paid off the phone I could switch carriers. So that's what I did. Sprint even unlocked it. Now people are telling me I can't use this certain phone on at&t, or even verizon because it is a cdma phone. No one told me this when buying the phone.
Is it true that I am stuck with sprint?! I have horrible coverage in my area and I can't even use the internet and such unless I'm on a wireless connection. What can I do? Please help!
Did you try putting in a non sprint sim?
If it is SIM unlocked, just flash the unlocked (G950U1) firmware on it.
https://forum.xda-developers.com/galaxy-s8/how-to/snap-guide-flashing-standard-fw-carrier-t3625817
KARVEGA79 said:
Hi guys.. So I bought a Samsung Galaxy S8 from Best Buy Mobile last month. I had to use sprint because at&t (my fav. carrier) would not finance me on the phone. I was told if I paid off the phone I could switch carriers. So that's what I did. Sprint even unlocked it. Now people are telling me I can't use this certain phone on at&t, or even verizon because it is a cdma phone. No one told me this when buying the phone.
Is it true that I am stuck with sprint?! I have horrible coverage in my area and I can't even use the internet and such unless I'm on a wireless connection. What can I do? Please help!
Click to expand...
Click to collapse
If the Sprint unlocked your phone, then it won't hurt inserting another sim in it. Theoretically speaking it should work and if it won't, then flashing is another way of making it work.
KARVEGA79 said:
Now people are telling me I can't use this certain phone on at&t, or even verizon because it is a cdma phone. No one told me this when buying the phone.
Click to expand...
Click to collapse
Who are these ignorant people telling you this and why are you listening to them?
1) Verizon also uses CDMA, so having CDMA is the reason it WOULD work with Verizon.
2) All the carriers in the U.S. get the same phone. All the bands needed for a specific carrier are activated when the SIM card is installed. The only reason it wouldn't work is if Sprint had not unlocked the phone after you paid it off. It would be locked to Sprint to prevent you from not honoring the purchase agreement. And even then it would be blacklisted on Sprint network, if you didn't honor the purchase agreement.
3) if inserting the SIM card for another carrier doesn't automatically change the firmware, then do what this guy said:
lancemoreland said:
If it is SIM unlocked, just flash the unlocked (G950U1) firmware on it.
Guide for Flashing Standard Firmware, Carrier Switching, and Flashing Unlocked Firmware
https://forum.xda-developers.com/galaxy-s8/how-to/snap-guide-flashing-standard-fw-carrier-t3625817
Click to expand...
Click to collapse
Sprint, at&t and even verizon said my phone wasn't compatible even after I told them sprint unlocked it. I had no idea about all this cdma, gsm crap when buying the phone. I have never had a decent phone like an S8. All my phones have been cheap prepaid phones since now due to the fact no one would ever finance me for one. I was SOO freakin surprised and happy when someone actually agreed to finance me, I figured I could pay off the phone and then switch. After paying off the phone is when these companies said it was incompatible. Weird thing is I went to IMEI.info and it says it IS compatible and IS unlocked for sure. I then went to at&t online and after typing in my imei number it also said it was compatible. I'm so confused. I am going to take it up to at&t tomorrow and see what happens when I buy and insert a sim card. If it turns out to be sim locked is there a way to bypass this? I truly have paid the phone off and after doing so I asked sprint (on the phone) to sim unlock it, they said they did.
Please do not listen to the idiots at the mobile companies. There is ZERO difference in the S8, ZERO!!!!! If It's not sim locked it will work on ALL carriers, both cdma and gsm.
If It's still sim locked, some people have had success paying a third party to provide a code. But I would try sprint first since They said it should be unlocked.
My guess is that it will work fine with another sim card.
I would either flash the att firmware or the unlocked firmware on it.
Sent from my SM-G950U1 using Tapatalk
Should I flash the att firmware before inserting the sim or only if the sim does not work? Also is there a way and should I back up my sprint firmware or should I be ok? Thanks.
KARVEGA79 said:
Should I flash the att firmware before inserting the sim or only if the sim does not work? Also is there a way and should I back up my sprint firmware or should I be ok? Thanks.
Click to expand...
Click to collapse
I would flash the unlocked firmware on the phone. Will get rid of bloatware. No reason to backup sprint firmware, Its everywhere.
Sent from my SM-G950U1 using Tapatalk
ChazzMatt said:
Who are these ignorant people telling you this and why are you listening to them?
1) Verizon also uses CDMA, so having CDMA is the reason it WOULD work with Verizon.
2) All the carriers in the U.S. get the same phone. All the bands needed for a specific carrier are activated when the SIM card is installed. The only reason it wouldn't work is if Sprint had not unlocked the phone after you paid it off. It would be locked to Sprint to prevent you from not honoring the purchase agreement. And even then it would be blacklisted on Sprint network, if you didn't honor the purchase agreement.
3) if inserting the SIM card for another carrier doesn't automatically change the firmware, then do what this guy said:
Click to expand...
Click to collapse
It says this guide is only for snapdragon S8's I have an exynos S8. Is there another guide for that one? Nevermind, IMEI.info said I has an exynos, I guess it was wrong info. CPU-Z says it's a snapdragon 835. I'm assuming the CPU-Z info is the correct info?
KARVEGA79 said:
It says this guide is only for snapdragon S8's I have an exynos S8. Is there another guide for that one? Nevermind, IMEI.info said I has an exynos, I guess it was wrong info. CPU-Z says it's a snapdragon 835. I'm assuming the CPU-Z info is the correct info?
Click to expand...
Click to collapse
You said you purchased that phone from Sprint directly. It's a snapdragon. Exynos is in the international version, which Sprint does not sell.
rkennison said:
You said you purchased that phone from Sprint directly. It's a snapdragon. Exynos is in the international version, which Sprint does not sell.
Click to expand...
Click to collapse
I purchased it from Best Buy Mobile, had to sign with sprint because no other carrier would finance me.
KARVEGA79 said:
It says this guide is only for snapdragon S8's I have an exynos S8. Is there another guide for that one? Nevermind, IMEI.info said I has an exynos, I guess it was wrong info. CPU-Z says it's a snapdragon 835. I'm assuming the CPU-Z info is the correct info?
Click to expand...
Click to collapse
If you bought it from Sprint (or even just used it on Sprint), then you have a Snapdragon 835 S8. Only the Snapdragon variants have CDMA bands for Sprint and Verizon. Only the Snapdragon S8/S8+ variants are sold by carriers in North America -- so they can be cross compatible with Sprint/Verizon/AT&T/T-mobile/Canadian carriers. That's why whoever told you this nonsense is so ignorant.
If you had IMPORTED an Exynos variant from like England, then you would be limited to AT&T or T-mobile. But you have the "universal" Snapdragon model. Now the Exynos variant has an easily unlocked bootloader, which is a reason people import them, but that's another topic altogether.
As long as your Snapdragon 835 S8 is SIM unlocked (you have paid for it in full, and Sprint says they have unlocked it), you can take it to any other carrier or even an MVNO (like Straight Talk) and use it.
---------- Post added at 08:04 AM ---------- Previous post was at 08:00 AM ----------
KARVEGA79 said:
I purchased it from Best Buy Mobile, had to sign with sprint because no other carrier would finance me.
Click to expand...
Click to collapse
If you used it on Sprint, you have Snapdragon 835. Only the Snapdragon S8/S8+ variants have CDMA bands for Sprint and Verizon, in addition to LTE bands.
---------- Post added at 08:26 AM ---------- Previous post was at 08:04 AM ----------
KARVEGA79 said:
Should I flash the att firmware before inserting the sim or only if the sim does not work? Also is there a way and should I back up my sprint firmware or should I be ok? Thanks.
Click to expand...
Click to collapse
Thor2j said:
Please do not listen to the idiots at the mobile companies. There is ZERO difference in the S8, ZERO!!!!! If It's not sim locked it will work on ALL carriers, both cdma and gsm.
If It's still sim locked, some people have had success paying a third party to provide a code. But I would try sprint first since They said it should be unlocked.
My guess is that it will work fine with another sim card.
I would either flash the att firmware or the unlocked firmware on it.
Sent from my SM-G950U1 using Tapatalk
Click to expand...
Click to collapse
Since you phone is paid off, when you go to AT&T, try AT&T Prepaid (formerly called GoPhone). It's really for people who already own their phones.
Same high speed data off the same low-lag data servers used by "contract"/postpaid AT&T customers (with one exception, which I'll warn you about),
same in-store AT&T customer service as contract/postpaid AT&T customers,
same AT&T SIM card as contract/pospaid service. (The store may have SIM cards labelled "AT&T Prepaid", but underneath it's the same AT&T SIM card. If they try to charge you for one, tell them you want the FREE AT&T SIM card. It's the exact same thing.)
Make sure you go to an AT&T corporate store, not a "franchise" store. At the AT&T corporate store they will even give you free AT&T SIM card to use for AT&T Prepaid. (Franchise stores will try to sell you SIM cards.)
The advantage is AT&T Prepaid is much less expensive service than "postpaid" AT&T (contract service). Since you already own your phone in full, all you need to pay for is monthly service. You don't need to pay extra each month so you can get a "free" upgrade to a new phone in 2 or 3 years. (Not free, you are really paying for it with extra fees each month.)
You would want the $45/6GB plan on AT&T Prepaid. Do not fall for the $60 "unlimited" plan. The $45/6GB plan gives you plenty of UNCAPPED high speed data/unlimited calls/unlimited texts. Whereas the $60 plan caps your data speeds at 3mbps to compensate for it being "unlimited". AT&T Prepaid uses same data servers as their AT&T postpaid customers and I get ping speeds often less than 30ms, most often 26-29ms, which is fantastic low lag speed. (Lower pings are better, lower ping speed = less lag). If you go to even a service like Cricket (owned by AT&T, but you won't see any AT&T logos anywhere), they use proxy server farms and you often get triple digit ping speeds (high lag). This is also why Cricket has to use a DIFFERENT SIM card from regular AT&T. Higher ping speeds make it seems like your download speeds are much slower than they are.. due to LAG. Plus Cricket caps ALL download speeds at 8mbps. Until AT&T Prepaid (formerly called GoPhone) introduced their $60 "unlimited" plan, ALL their plans were uncapped high speed data. They didn't cap download speed at all. But now they have started capping speeds with the $60 "unlimited" plan. So STAY AWAY FROM THAT.
With the $45/6GB plan, if you autopay each month, you can save $5 and only pay $40 per month. So, $40 per month for 6GB data, with UNCAPPED low lag data straight from AT&T. Don't let them charge you for a SIM card! AT&T Prepaid uses the exact same SIM card as "regular' AT&T.
If you decide you don't like it, for whatever reason, you can switch to "regular" postpaid AT&T. But since I always pay for our phones in full, I like to save on monthly service. Although there are tons of MNVOs with prepaid service, they all use proxy servers with high lag (high ping speeds). Even AT&T's own Cricket is configured as an MVNO, to compete with MNVOs like Straight Talk. But AT&T Prepaid is not. It's "pure" AT&T, but at budget prices -- which AT&T uses to compete with actual carriers like T-mobile and Sprint.
You can "bring your own phone" , which in this case is your fully paid for Galaxy S8.
How do I know which ones are the corporate stores and which are the franchise stores? I'm looking at the St. Louis map now. Some say at&t authorized retailer and then some just say at&t.
I have a sprint model and I unlocked it.
It works with T-Mobile and gets LTE
It works with att and gets LTE
It works with Verizon my current carrier now and also gets LTE
Highly recommend flashing the unlocked software if you go this route the sprint software with non sprint SIM cards is very annoying.
Sheon849 said:
I have a sprint model and I unlocked it.
It works with T-Mobile and gets LTE
It works with att and gets LTE
It works with Verizon my current carrier now and also gets LTE
Highly recommend flashing the unlocked software if you go this route the sprint software with non sprint SIM cards is very annoying.
Click to expand...
Click to collapse
It worked! Thank GOD! In my room now I get -90/-100 with att and had -100/-125 with sprint. It is using HSPA and I can't find LTE on here to switch over. It stays on 3g, it never goes to 4g or LTE, how can I fix that?
So please tell me what I need to do to delete the sprint crap on here and put att on it. Thanks guys.
Not being rude, but you've been told many times on here What to do , reread the posts.
Follow the directions, we can't spoon feed every little thing.
https://forum.xda-developers.com/showthread.php?t=3625817
Sent from my SM-G950U1 using Tapatalk
Ok, so I want to do the prerequisites - check.
Then just do the carrier switching part and I'm done right?
Do I do all this with the sim card installed or not installed?
Sorry, this is my first time doing this.
Ok, I did what the guide said. During the flashing standard firmware part after clicking start is said FAIL! SHA256 is invalid. I ended up going back into ADB, rebooting and trying a different att firmware download and now the phone works. Weird thing is, I don't see alot of the apps that I had on an old phone with go phone and 4g LTE is not working, it's not even an option. What should I do if I want to wipe clean the phone to stock samsung android, not stock sprint as I bought it. Then I could insert the new go phone sim and it will install those apps and turn on 4g LTE? I'm learning guys, slowly but surely. I love this kinda stuff, so please bear with me here.
KARVEGA79 said:
How do I know which ones are the corporate stores and which are the franchise stores? I'm looking at the St. Louis map now. Some say at&t authorized retailer and then some just say at&t.
Click to expand...
Click to collapse
https://www.att.com/maps/store-locator.html
Authorized retailers are code for "franchise stores". They are not owned by AT&T nor run by AT&T. They do not have actual AT&T employees and they will nickel and dime you for every little item, like SIM cards. Whereas "corporate" AT&T stores will give you free AT&T SIM cards.
When AT&T Prepaid was called GoPhone, event the AT&T stores sold a GoPhone SIM card "kit" that had various sizes SIM cards with plastic shims for $15 -- which was totally unnecessary. I just told them, "NO, I want a FREE AT&T SIM card which fits my phone." And at the corporate stores they have to give it to you. AT&T and AT&T Prepaid (formerly branded as GoPhone) uses the EXACT same SIM cards. It's just they had some "labelled" as GoPhone but underneath it was the exact same thing.
3or 4 years ago, I had a friend buy a brand new Samsung Galaxy phone "on contract" INSIDE an AT&T corporate store, then immediately paid it off with his credit card, and switched to GoPhone -- all in the same visit -- and they did NOT even touch his AT&T SIM card inside his phone. It's just an internal AT&T accounting change. Now GoPhone has been re-branded as AT&T Prepaid to make it less confusing.

Desperate: Is there any way to unlock a blacklisted Samsung S7 from T-Mobile?

Hello all,
Like many others, I unknowingly bought a blacklisted phone on eBay. It's a Samsung S7 with T-Mobile from the US. I live in Costa Rica, and I'm trying to use a SIM from a local service provider. Sending the phone back for an uninteresting list of various reasons is impossible at this point. So, I am attempting to unlock it.
I rooted the phone with SuperSu thinking that would work, now I know better. After hours and hours of research, I found a xda dev that can remove the lock, but with my slow internet speed, he says it's impossible.
I was suggested to use one of the paid services, but I'm concerned that if my slow connection will not work for the xda dev, why would it work for a paid unlock service? My connection is 5/1. Anyone have any luck buying the expensive @$$ service and successfully receiving the code with a slow connection?
Is there really no way around the T-Mobile Unlock App?
Is there truly no DIY process or program that I can do, being that the paid unlock services may not to work?
I really need this phone to work. I just moved to Costa Rica, and I use my phone to work. So, I am pretty damn stuck between a rock and a hard place with spikes. I'm pretty desperate, almost willingly to pay my last money to a dumb unlock service.
But some of the services say that it will not work if the phone is blacklisted.
I just don't know what my options are at this point.
Blacklisted phone
victoriaa22 said:
Hello all,
Like many others, I unknowingly bought a blacklisted phone on eBay. It's a Samsung S7 with T-Mobile from the US. I live in Costa Rica, and I'm trying to use a SIM from a local service provider. Sending the phone back for an uninteresting list of various reasons is impossible at this point. So, I am attempting to unlock it.
I rooted the phone with SuperSu thinking that would work, now I know better. After hours and hours of research, I found a xda dev that can remove the lock, but with my slow internet speed, he says it's impossible.
I was suggested to use one of the paid services, but I'm concerned that if my slow connection will not work for the xda dev, why would it work for a paid unlock service? My connection is 5/1. Anyone have any luck buying the expensive @$$ service and successfully receiving the code with a slow connection?
Is there really no way around the T-Mobile Unlock App?
Is there truly no DIY process or program that I can do, being that the paid unlock services may not to work?
I really need this phone to work. I just moved to Costa Rica, and I use my phone to work. So, I am pretty damn stuck between a rock and a hard place with spikes. I'm pretty desperate, almost willingly to pay my last money to a dumb unlock service.
But some of the services say that it will not work if the phone is blacklisted.
I just don't know what my options are at this point.
Click to expand...
Click to collapse
Might be able to resell the phone with a *disclaimer* that it is blacklisted, I would recommend Swappa over Ebay though, (I got a really decent chunk of change for my Galaxy S Blaze that I sold on there), and then use the proceeds from that to acquire a phone that isn't stolen.
I got mine unlocked in a repair shop at gaffar market,delhi,india for rs 3200 inr and it was blacklisted on tmobile's website, when bought it was unlocked but after few days it automatically got locked to tmobile.
I mean to say if i can get it done in india you guys can also get it done in your countries.
You would have to do a firmware swap - which you could do yourself - you just won't be able to use it on that particular carrier, even via an MVNO on that carrier. My own S7 is ex-VZW (network locked); but I could take it to T-Mobile (and did) via firmware swap. My carrier (Tracfone) uses both VZW and T-Mobile towers ; while VZW was out, T-Mobile, however, works fine. If you sell the phone post-swap, include documentation that a firmware swap was done, so the buyer does not try to take it to T-M by mistake - some folks insist on following the labelling unless expressly told not to. (My S7 still has VZW labelling.)
PGHammer said:
You would have to do a firmware swap - which you could do yourself - you just won't be able to use it on that particular carrier, even via an MVNO on that carrier. My own S7 is ex-VZW (network locked); but I could take it to T-Mobile (and did) via firmware swap. My carrier (Tracfone) uses both VZW and T-Mobile towers ; while VZW was out, T-Mobile, however, works fine. If you sell the phone post-swap, include documentation that a firmware swap was done, so the buyer does not try to take it to T-M by mistake - some folks insist on following the labelling unless expressly told not to. (My S7 still has VZW labelling.)
Click to expand...
Click to collapse
Firmware swap? So you're saying you can take a Note 4 on T-Mobile that is blacklisted and you can fix the problem just by flashing a new firmware from AT&T? Am I understanding that correctly or no? Because I have a Note 4 that is on T-Mobile that someone left at my GF's work and never came back for, so they wanted to throw it away, so I took it, I rooted it, deleted all the bloatware and have it working great as a small tablet, but I can't use it as a phone because it is blacklisted. Been trying to find a way to use it for years now with no luck, I will not dish out any money to one of those sites, I don't trust them. If there is a way I can do it myself I would surely try it.
Indeed You Can
Anthonyx82x said:
Firmware swap? So you're saying you can take a Note 4 on T-Mobile that is blacklisted and you can fix the problem just by flashing a new firmware from AT&T? Am I understanding that correctly or no? Because I have a Note 4 that is on T-Mobile that someone left at my GF's work and never came back for, so they wanted to throw it away, so I took it, I rooted it, deleted all the bloatware and have it working great as a small tablet, but I can't use it as a phone because it is blacklisted. Been trying to find a way to use it for years now with no luck, I will not dish out any money to one of those sites, I don't trust them. If there is a way I can do it myself I would surely try it.
Click to expand...
Click to collapse
A blacklisted IMEI only affects the blacklisted carrier in question - it does not affect ALL carriers. (I cannot take my Snapdragon S7 to Verizon or that side of Tracfone due the IMEI being Verizon-blacklisted; however, it does not affect T-Mobile or the T-Mobile side of Tracfone - which is a separate network/carrier - which is why I was able to take the phone there.
. In your case, your Note 4 has a T-Mobile blacklisted IMEI; therefore, you can take it to AT&T Mobility, Verizon, the Verizon half of Tracfone, or Sprint - you simply need the apropos firmware and SIM. If the phone itself has T-Mobile labeling/branding, and you are trying to sell it, you should include documentation indicating what was done, and why (honesty). The biggest issue is sellers that DON'T do that (document what was done) or worse - don't do a firmware/ROM change for a phone with a blacklisted IMEI. So you can actually use it as a phone - you just can't take it to the original carrier.
victoriaa22 said:
Hello all,
Like many others, I unknowingly bought a blacklisted phone on eBay. It's a Samsung S7 with T-Mobile from the US. I live in Costa Rica, and I'm trying to use a SIM from a local service provider. Sending the phone back for an uninteresting list of various reasons is impossible at this point. So, I am attempting to unlock it.
I rooted the phone with SuperSu thinking that would work, now I know better. After hours and hours of research, I found a xda dev that can remove the lock, but with my slow internet speed, he says it's impossible.
I was suggested to use one of the paid services, but I'm concerned that if my slow connection will not work for the xda dev, why would it work for a paid unlock service? My connection is 5/1. Anyone have any luck buying the expensive @$$ service and successfully receiving the code with a slow connection?
Is there really no way around the T-Mobile Unlock App?
Is there truly no DIY process or program that I can do, being that the paid unlock services may not to work?
I really need this phone to work. I just moved to Costa Rica, and I use my phone to work. So, I am pretty damn stuck between a rock and a hard place with spikes. I'm pretty desperate, almost willingly to pay my last money to a dumb unlock service.
But some of the services say that it will not work if the phone is blacklisted.
I just don't know what my options are at this point.
Click to expand...
Click to collapse
Try https://www.gsmzambia.com/.
You need a Windows PC with Teamviewer.
Anthonyx82x said:
Firmware swap? So you're saying you can take a Note 4 on T-Mobile that is blacklisted and you can fix the problem just by flashing a new firmware from AT&T? Am I understanding that correctly or no? Because I have a Note 4 that is on T-Mobile that someone left at my GF's work and never came back for, so they wanted to throw it away, so I took it, I rooted it, deleted all the bloatware and have it working great as a small tablet, but I can't use it as a phone because it is blacklisted. Been trying to find a way to use it for years now with no luck, I will not dish out any money to one of those sites, I don't trust them. If there is a way I can do it myself I would surely try it.
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This is what I am saying - that and a SIM from a carrier other than the one that blacklisted the IMEI - I took my own phone from VZW to T-Mobile (Tracfone supports both carrier networks). Because it was an internal swap (same MVNO), it cost me nothing.

International Travel with AT&T model

Hello..purchased my Galaxy S10+ directly from Samsung. I got the AT&T model however. Does anybody know if the phone will accept a pre-paid SIM when travelling internationally? Plan on going to Ireland, and would like to use my S10+ with a pre-paid sim from one of the carriers over there (Vodaphone, etc..). Wasn't sure if that was possible as I bought the AT&T model. I do have an unlocked Nokia as a backup, but obviously would prefer to only have 1 phone rather than 2.
Thanks in advance.
I did the exact there same thing so I can get WiFi/video call working.
You have to call at&t to get it unlock for using it overseas. Otherwise it won't work. If paid off, at&t will provide unlock code within a day. That's what I did
How would Att even know (or care) if it was paid off?
randy_c said:
I did the exact there same thing so I can get WiFi/video call working.
You have to call at&t to get it unlock for using it overseas. Otherwise it won't work. If paid off, at&t will provide unlock code within a day. That's what I did
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How would Att know (or care) if it was paid off? All payments are through Samsung.
It's an AT&T phone so IMEI registered in their data base. When you request they can check if they phone paid off or not. If paid off they will provide you an unlock code. If you phone is not then you can buy an unlock code on eBay and cost around $30-$40. I have done both way to get a few galaxy unlock this way

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