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Unlocked note 8 AT&T but no gsm sim works

Hi everyone
I’m kinda puzzled with this note 8 and need some advice. Recently got a note 8 from AT&T and since I was traveling I had it unlocked to use by a third party company ( since att doesn’t unlock until Device payment is complete)
I got the code, unlocked the phone successfully. Before I left USA I put a working T-Mobile sim to test if connectivity, no luck, it doesn’t work, I tried a Verizon sim, nothing works....
Note... this T-Mobile sim and Verizon sim if I put it on a different device it will work...
any reason why this is happening

jmathew86 said:
Hi everyone
I’m kinda puzzled with this note 8 and need some advice. Recently got a note 8 from AT&T and since I was traveling I had it unlocked to use by a third party company ( since att doesn’t unlock until Device payment is complete)
I got the code, unlocked the phone successfully. Before I left USA I put a working T-Mobile sim to test if connectivity, no luck, it doesn’t work, I tried a Verizon sim, nothing works....
Note... this T-Mobile sim and Verizon sim if I put it on a different device it will work...
any reason why this is happening
Click to expand...
Click to collapse
The phone is not unlocked. Seems like an error happened when you got the unlock code. I'd try again.

Did you use this device on the att network? I mean, do you have it activated?
If you unlocked it by codes and the message after inserting the code is something like "unlock successfull" then your device must accept other GSM SIM cards.
Also, I would recommend you place a 5 min call with your device, with the att sim card and then insert again the tmob card.
What is the message when you insert the tmobile card in this device?

I did the same thing by using a Tmobile SIM during the unlocking process, and it worked on TMobile right after I unlocked it. It sounded like you did not unlock it using a different network SIM but using some other method. I am not sure if that mattered or not.
I then traveled to Asia, and I bought and used a local SIM card with zero issues. The 4G LTE was faster in that country than AT&T... LOL

Can the iPhone 7 plus be SIM unlocked

I recently upgraded to a pixel 2 xl.. and after spending 3 days with it... i just want rid of it... Its not the pixels fault, theres nothing wrong with it as such, but Ive been on android since the Galaxy S and the HTC Desire.. and Ive had enough of it, so Im think of giving Iphone a try...
Im new to iPhone, so.... Alot of the 2nd hand stores are selling the 128/256GB 7 Plus on networks (EE, O2 etc) for fairly decent prices, and on ebay you can get them SIM unlocked in a similar way to the Pixels.. (the carrier unlocks the phone, they dont send you an NIC).. however, these codes are being offered on eBay..
My question is:
I thought the iPhone had to be Jail broken to sim unlock, so are these adverts genuine.. Can the 7/7Plus be SIM unlocked safely, so they are just like an Unlocked iPhone and everything works as it whould out of the box.. including updates.. Is this safe... Heres the link to the adverts
mod edit - sales link removed
Thanks

Yes, the iPhone 7 can be unlocked. However, the unlocking process is not through Network unlock codes, but is similar to the unlocking process of T-Mobile and MetroPCS phones, where the IMEI is registered as unlocked.
The device’s IMEI needs to be registered as Unlocked in Apple’s database and afterward, there are a few steps that need to be followed in order to complete the unlocking process:
1. Installation of the latest version of iTunes on a target PC
2. Updating the iOS to the latest official version available on iTunes (if not already up to date)
3. Inserting a non-accepted SIM card and connecting the phone to iTunes
4. Wait until iTunes will detect your phone
5. Disconnect the phone and reconnect it after 10 seconds
6. Phone is Unlocked
https://www.unlockunit.com/blog/unlocking-process-iphone/

UK Provider branding / bloatware

Was trying to get a 432 EU model of the Pro 20, but after a price cut in the UK to £669 I bought a CLT L09 C782 SIM free.
I have a week to decide if it is OK and I had read about the branding issue once a SIM is added. I'm on Vodafone and when I put the SIM in (after seeing what the system looked like without) there was minimal branding.
My Vodafone, Start and Vodafone SIM manager. The first two I was able to uninstall conventionally and I see little trace of Vodafone on the device (no splash screen on boot) just Provisioning Service and the SIM manager.
Am I missing something as it still feels like I'm only sharing my phone with Google & Huawei, not really Vodafone so much?
What branding issues are UK owners experiencing?

I, too am on Vodafone.
The branding causes no issues whatsoever. Google Chrome browser will initially direct you to the Vodafone home web page but this can be changed in the browser settings.
The big problem with this model of the p20 pro is that it is some way behind other models with software updates.
Sent from my [device_name] using XDA-Developers Legacy app

the biggest branding issue is for users on the three network where they update the boot animation with the three logo which could possibly have an affect on resale value (not sure how much as Huawei's have very poor resell value compared to other devices) - the other issue is the updates as the network operator has to authorise these meaning we are way behind on updates compared to other models.

walkerx said:
the biggest branding issue is for users on the three network where they update the boot animation with the three logo which could possibly have an affect on resale value (not sure how much as Huawei's have very poor resell value compared to other devices) - the other issue is the updates as the network operator has to authorise these meaning we are way behind on updates compared to other models.
Click to expand...
Click to collapse
Thankfully the latest update removed the boot screen branding so that was a bonus.

DaveP2611 said:
Thankfully the latest update removed the boot screen branding so that was a bonus.
Click to expand...
Click to collapse
You must be lucky then if on 3 and boot screen branding been removed as mine is still there..
Sent from my Huawei P20 Pro using XDA Labs

walkerx said:
You must be lucky then if on 3 and boot screen branding been removed as mine is still there..
Sent from my Huawei P20 Pro using XDA Labs
Click to expand...
Click to collapse
Yeah with Three, CLT-L09 8.1.0.130(C782)

It could be that the dual sim model CLT-L29 8.1.0.131(C782) doesn't get the branding removed

walkerx said:
It could be that the dual sim model CLT-L29 8.1.0.131(C782) doesn't get the branding removed
Click to expand...
Click to collapse
Ah yes maybe as mine was originally an unlocked (for Vodafone via CPW)

DaveP2611 said:
Ah yes maybe as mine was originally an unlocked (for Vodafone via CPW)
Click to expand...
Click to collapse
i also have the unlocked mate 10 pro from CPW and that was rebranded to three with no change when updated.

Thanks for the info. I think I like the phone enough to stick with it.
CPW advised that as it was SIM free the updates would come from Huawei, not Vodafone. I doubted that at the time.
Is it Huawei or Vodafone who are responsible for the slow release schedule of 782 firmware?
Currently the phone is on 130, what is the latest build for the 782 and how behind the 432 is it?

finkle said:
Thanks for the info. I think I like the phone enough to stick with it.
CPW advised that as it was SIM free the updates would come from Huawei, not Vodafone. I doubted that at the time.
Is it Huawei or Vodafone who are responsible for the slow release schedule of 782 firmware?
Currently the phone is on 130, what is the latest build for the 782 and how behind the 432 is it?
Click to expand...
Click to collapse
the network operator is responsible, they inform huawei if the update can be released. I had the same from CPW and when tried raising as a complaint that when they sell these they are not informing customers they will be rebranded, they didn't give a hoot about it and when spoke to CA they said the consumer has to prove they were mis-sold. So litterally nothing you can do about it.
I'm now opposed to buying from CPW or a subsidiary in the future because of their attitude towards customers.
According to Huawei to get a phone that updates from them, you need to buy it from someone who does not provide mobile contracts, but you can't guarantee you will get a non C782 model

This is the only phone I have ever bought (buy all mine outright and unlocked...usually from CPW or Amazon) that has EVER relied on a network releasing an update for an unlocked phone... so, even though this phone is unlocked, I am still waiting on three network to wheeze out an update every 3 months....whereas it should come direct from Huawei.... this is insanity. Every other phone I have bought (many) has always been miles in front of the networks... this is one of the reasons I buy unlocked phones !!!
I can confirm that these updates come from the network operator, because I have pulled the sim out before powering up... checked for updates on wifi… nothing.... pop the sim back in, power up, and there is an update....form three.
So, Huawei, you have shot yourself in the foot with the C782 (and its garbage update policy) in the UK...seriously considering flashing the C432 firmware... and I'm not really into that, but would give it a go...

falsivas said:
This is the only phone I have ever bought (buy all mine outright and unlocked...usually from CPW or Amazon) that has EVER relied on a network releasing an update for an unlocked phone... so, even though this phone is unlocked, I am still waiting on three network to wheeze out an update every 3 months....whereas it should come direct from Huawei.... this is insanity. Every other phone I have bought (many) has always been miles in front of the networks... this is one of the reasons I buy unlocked phones !!!
I can confirm that these updates come from the network operator, because I have pulled the sim out before powering up... checked for updates on wifi… nothing.... pop the sim back in, power up, and there is an update....form three.
So, Huawei, you have shot yourself in the foot with the C782 (and its garbage update policy) in the UK...seriously considering flashing the C432 firmware... and I'm not really into that, but would give it a go...
Click to expand...
Click to collapse
i buy all mine unlocked when I can afford it as i don't want them branding by the network or reliant on them for updates - my Mate 10 Pro from CPW has this problem and CPW won't do anything as Huawei say they sell the unlocked ones which is same as the network versions - if CPW had told me at time of purchase I would not have bought it, but you can't do anything about it as you have to prove they never told you and that you felt misled when buying it.

one plus 7 pro tmobile dual sim tray and same imei for both slots

I bought a oneplus 7 pro from someone through offerup
i had an old samsung j7 that had dual sim functionality that i need for work and productivity so when it came time for an upgrade i bought the oneplus as it was advertised as a dual sim phone by the guy who sold it to me.
at the time of purchase, i just opened the settings and saw that it had two sim settings (sim 1 and sim2) and i naturally assumed that it was a dual sim phone.
i also plugged my att sim and figured that it is unlocked. i also did a factory reset and there was no branding for any carrier when i started the device.
therefore i just assumed that this is the unlocked dual sim version.
however, once i got home and tried to put the two sim cards in it and i quickly realized that the sim tray can only fit one sim.
when i called oneplus support about this, they said the phone is designed as single sim and that it was a tmobile phone and thats about all the info they gave me.
i went to tmobile store and they confirmed the phone is unlocked and paid off but they wouldnt help
me any further with the dual sim functionality.
upon quick google search i found a dual sim tray for the phone and ordered it. it is arriving today. I am thinking that all i have to do is just install the new dual sim tray and have dual sims working.
however now that I am looking at the settings more clearly i see that the imei for both sim slot settings are the same.
i checked the firmware on the phone and it seems that guy who sold it to me installed the nonbranded firmware but i am not sure if it is still the tmobile branded firmware. Does the Tmobile firmware startup with the Tmobile logo? how can i know i am running the latest international firmware ?
are the imei numbers the same because it is still on the tmobile firmware?
the build number it reads is 9.5.11.GM21AA
Also, if i pop the two tmobile sims in it, will the device be blacklisted simce they both will have the same imei?

asofan said:
I bought a oneplus 7 pro from someone through offerup
i had an old samsung j7 that had dual sim functionality that i need for work and productivity so when it came time for an upgrade i bought the oneplus as it was advertised as a dual sim phone by the guy who sold it to me.
at the time of purchase, i just opened the settings and saw that it had two sim settings (sim 1 and sim2) and i naturally assumed that it was a dual sim phone.
i also plugged my att sim and figured that it is unlocked. i also did a factory reset and there was no branding for any carrier when i started the device.
therefore i just assumed that this is the unlocked dual sim version.
however, once i got home and tried to put the two sim cards in it and i quickly realized that the sim tray can only fit one sim.
when i called oneplus support about this, they said the phone is designed as single sim and that it was a tmobile phone and thats about all the info they gave me.
i went to tmobile store and they confirmed the phone is unlocked and paid off but they wouldnt help
me any further with the dual sim functionality.
upon quick google search i found a dual sim tray for the phone and ordered it. it is arriving today. I am thinking that all i have to do is just install the new dual sim tray and have dual sims working.
however now that I am looking at the settings more clearly i see that the imei for both sim slot settings are the same.
i checked the firmware on the phone and it seems that guy who sold it to me installed the nonbranded firmware but i am not sure if it is still the tmobile branded firmware. Does the Tmobile firmware startup with the Tmobile logo? how can i know i am running the latest international firmware ?
are the imei numbers the same because it is still on the tmobile firmware?
the build number it reads is 9.5.11.GM21AA
Also, if i pop the two tmobile sims in it, will the device be blacklisted simce they both will have the same imei?
Click to expand...
Click to collapse
You are running international firmware.
The software is strange and just like the 6T it reports only one IMEID.
If you put in two SIMS they will have different IMEID.
Look in the forums for threads on T-Mobile converted to dual sim.

Thank you for the quick reply. The dual sim trey will arrive today so I will try it and report back.
Thank you.

asofan said:
Thank you for the quick reply. The dual sim trey will arrive today so I will try it and report back.
Thank you.
Click to expand...
Click to collapse
Did the dual SIM tray worked for you? I am planning to do the same for OnePlus 7T..

tech_head said:
You are running international firmware.
The software is strange and just like the 6T it reports only one IMEID.
If you put in two SIMS they will have different IMEID.
Look in the forums for threads on T-Mobile converted to dual sim.
Click to expand...
Click to collapse
If he is running a T-Mobile op7 that has been converted to International then he only has one IMEI. That same IMEI can be used in both Sim slots but you were wanting to be careful if you're using the same provider for example and an mvno that is on T-Mobile and then a second Sim that is also on T-Mobile although T-Mobile is one of the few that is pretty relaxed about duplicates. If you're on something like AT&T you'll want to pay a lot more attention.
If you are using two completely different Networks then you should not have an issue.
I know this works because I am using a T-Mobile version that was converted to International myself with a dual SIM tray.
If when the phone boots up you see that T-Mobile logo then you were still on the T-Mobile software. On the international version you'll see a little Android droid logo at the bottom and a OnePlus logo.

famewolf said:
If he is running a T-Mobile op7 that has been converted to International then he only has one IMEI. That same IMEI can be used in both Sim slots but you were wanting to be careful if you're using the same provider for example and an mvno that is on T-Mobile and then a second Sim that is also on T-Mobile although T-Mobile is one of the few that is pretty relaxed about duplicates. If you're on something like AT&T you'll want to pay a lot more attention.
If you are using two completely different Networks then you should not have an issue.
I know this works because I am using a T-Mobile version that was converted to International myself with a dual SIM tray.
If when the phone boots up you see that T-Mobile logo then you were still on the T-Mobile software. On the international version you'll see a little Android droid logo at the bottom and a OnePlus logo.
Click to expand...
Click to collapse
Hi,
New around here...
Any idea on how to unlock a T-mobile locked One Plus 7 Pro?
T-Mobile says I don't qualify for unlocking as I'm the 3rd owner and not having a T-Mobile account and SIM.
Any advice on this would be greatly appreciated as I'm going to inEurope for a while and need to insert local SIM cards for better rates.
Many thanks
Cris

T-Mobile converted to international dual sim single imei question

As the title states, I have a T-Mobile OP 7 pro thats been converted to international. I already have the dual sim tray in it and have used it with a verizon sim in slot one and google fi in slot two. Only verizon required the imei to be attached to the sim. Google fi was pop it in and go.
Both lines worked perfectly with that set up.
I'm about to be using a verizon sim and a red pocket sim on att network in it. Thats going to require me to report the imei to redpocket to activate the sim sim same as verizon.
Will only haveing the one imei reported to both carriers be an issue? and is there a way to retrieve the second imei from the phone?+
I tried searching the forums and couldn't really find an answer.

As long as your 2 sims are on different networks for example one on AT&T and one on T-mobile you should be ok. The only time you might run into an issue is if you are using an mvno's sim that uses the same network as your primary. I'm doing that right now (also on a t-mobile op7 converted to international with dual sim tray) with T-mobile as my 2ndary and soon to be gone sim and Ultra Mobile as my Primary (which also uses t-mobile's network)......T-Mobile has been reported multiple times not to pay attention to this. Other networks may not be so forgiving. To answer your last questions...there IS no second imei to retrieve. The device was intended to be a single sim device so no 2nd one was allocated. The fact it works with the same imei in both is luck more than anything else.

famewolf said:
As long as your 2 sims are on different networks for example one on AT&T and one on T-mobile you should be ok. The only time you might run into an issue is if you are using an mvno's sim that uses the same network as your primary. I'm doing that right now (also on a t-mobile op7 converted to international with dual sim tray) with T-mobile as my 2ndary and soon to be gone sim and Ultra Mobile as my Primary (which also uses t-mobile's network)......T-Mobile has been reported multiple times not to pay attention to this. Other networks may not be so forgiving. To answer your last questions...there IS no second imei to retrieve. The device was intended to be a single sim device so no 2nd one was allocated. The fact it works with the same imei in both is luck more than anything else.
Click to expand...
Click to collapse
Thanks for the reply, the second part is what I really wasn't sure of if the phone just hid the second IMEI or if it actually didn't have one.
I should be good then. I got the AT&T Redpocket sim and main will be Verizon.

blooddragon78 said:
Thanks for the reply, the second part is what I really wasn't sure of if the phone just hid the second IMEI or if it actually didn't have one.
I should be good then. I got the AT&T Redpocket sim and main will be Verizon.
Click to expand...
Click to collapse
Don't quote me on this, but from days with the 6T, I'm pretty sure it's just not reported in the software correctly but on the network side there are actually two different IMEID.
You should be able to (at least on Verizon) to log in and see the IMEID that is attached to a SIM.

Try the VZW sim in slot 1 and check online for the imei. Log out and switch the sim to slot 2 and check again. Hopefully you should see a different imei. Please let us know what you find out.
Sent from my SM-T830 using Tapatalk

blooddragon78 said:
As the title states, I have a T-Mobile OP 7 pro thats been converted to international. I already have the dual sim tray in it and have used it with a verizon sim in slot one and google fi in slot two. Only verizon required the imei to be attached to the sim. Google fi was pop it in and go.
Both lines worked perfectly with that set up.
I'm about to be using a verizon sim and a red pocket sim on att network in it. Thats going to require me to report the imei to redpocket to activate the sim sim same as verizon.
Will only haveing the one imei reported to both carriers be an issue? and is there a way to retrieve the second imei from the phone?+
I tried searching the forums and couldn't really find an answer.
Click to expand...
Click to collapse
@blooddragon78 couple questions for you, as I also have OP7P that I bought from t-mo and switched to international:
- Were you able to use the sim tray that came with the phone? Or did you buy an aftermarket tray? I've heard mixed messages about the tray from t-mo having physical space for 2 sim cards.
- Did you have to unlock your phone to make use of the dual SIM functionality? Or in other words, are you still making device payments to t-mo?

flick0416 said:
@blooddragon78 couple questions for you, as I also have OP7P that I bought from t-mo and switched to international:
- Were you able to use the sim tray that came with the phone? Or did you buy an aftermarket tray? I've heard mixed messages about the tray from t-mo having physical space for 2 sim cards.
- Did you have to unlock your phone to make use of the dual SIM functionality? Or in other words, are you still making device payments to t-mo?
Click to expand...
Click to collapse
I purchased a dual Sim tray from Amazon. The Sim tray from T-mobile will not fit 2 Sim cards. I'm a t-mobile tech expert so I do know for sure aside from owning one and doing it. For dual Sim to work the device does need to be unlocked as it only has one imei. If you didn't unlock before the conversion you will need to convert back to get the unlock app to be able to unlock.
There were a couple of threads on xda to get unlocked in the system but you still have to run the app. Not sure if they are active still.
If you need some help dm me.

Help with Op 7 Pro Sprint Unlocked version
Hello, I sent you a private message @blooddragon78, but Imma post here as well to see if anyone else can help me out, I'll greatly appreciate it. I came across this thread on being able to convert a T-mobile OP 7 Pro to the international version and enabling dual sim functionality. I was hoping to do the same as well, but I havent made the purchase yet in case it's not doable. Im currently looking at this OP7 Pro (Sprint version) that was factory unlocked and sold on Amazon (it's the OP 7 Pro sold at USD 499 by the Farmug Store) (if will be great if you guys can check and see the product to know what I mean exactly).
My question is what is the difference and meaning between "factory unlock/ phone unlocked" vs "sim unlocked" vs "unlocked bootloader?" I know this phone is unlocked for use on different carriers (and I live in Malaysia even), but how do I convert the phone to the international version so that I can receive updates from OnePlus directly (and not through the carrier)?
And how do I enable the dual sim functionality? Do I need to unlock the bootloader? Am I able to do that myself? Because I got confused as some people say unlocking the sim can only be done by the carrier, but Im not sure what is the difference of that with unlocking the bootloader.
In addition, say if Im able to convert it to the international version and get updates from OnePlus directly, dual sim functionality is enabled and such. Will updating the OS of the phone automatically (not doing it manually) lock the network/ brick the phone?

xHayashi said:
Hello, I sent you a private message @blooddragon78, but Imma post here as well to see if anyone else can help me out, I'll greatly appreciate it. I came across this thread on being able to convert a T-mobile OP 7 Pro to the international version and enabling dual sim functionality. I was hoping to do the same as well, but I havent made the purchase yet in case it's not doable. Im currently looking at this OP7 Pro (Sprint version) that was factory unlocked and sold on Amazon (it's the OP 7 Pro sold at USD 499 by the Farmug Store) (if will be great if you guys can check and see the product to know what I mean exactly).
My question is what is the difference and meaning between "factory unlock/ phone unlocked" vs "sim unlocked" vs "unlocked bootloader?" I know this phone is unlocked for use on different carriers (and I live in Malaysia even), but how do I convert the phone to the international version so that I can receive updates from OnePlus directly (and not through the carrier)?
And how do I enable the dual sim functionality? Do I need to unlock the bootloader? Am I able to do that myself? Because I got confused as some people say unlocking the sim can only be done by the carrier, but Im not sure what is the difference of that with unlocking the bootloader.
In addition, say if Im able to convert it to the international version and get updates from OnePlus directly, dual sim functionality is enabled and such. Will updating the OS of the phone automatically (not doing it manually) lock the network/ brick the phone?
Click to expand...
Click to collapse
I don't k ow about dual sim.but converting International will allow Ota updates. If it's sim unlocked it should stay. Mine is still sim locked to t-mobile and I'm on internatti fimware