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I was wondering since both the AT&T and Tmobile phones are the same I could possibly flash a stock firmware from AT&T on to my T-mobile SGS III and then use an AT&T sim? I'm trying to use an AT&T sim card. Thought this might be an alternative to unlocking the phone. thanks.
I doubt that it would work
Sent from my SGH-T999 using xda premium
JoJo2211 said:
I was wondering since both the AT&T and Tmobile phones are the same I could possibly flash a stock firmware from AT&T on to my T-mobile SGS III and then use an AT&T sim? I'm trying to use an AT&T sim card. Thought this might be an alternative to unlocking the phone. thanks.
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no
Can you guys elaborate please.
NOooooo
JoJo2211 said:
Can you guys elaborate please.
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Just because you flash an att rom doesn't mean its gonna unlock the phone to use it on a different carrier. If you try that it will brick or crash. DON'T DO IT! Seriously, if you want to use it for another carrier you can request a subsidy unlock from Tmobile if you have an account in good standing every 90 days. If you bought it threw a third party try another method to get the device unlocked. Or if you bought it right out full price from Tmobile they can process the subsidy unlock request as well. Once you have your unlock code it should come with instructions or if not you can go to Tmobile.com support section for your phone the Samsung T999.
hucesar1017 said:
Just because you flash an att rom doesn't mean its gonna unlock the phone to use it on a different carrier. If you try that it will brick or crash. DON'T DO IT! Seriously, if you want to use it for another carrier you can request a subsidy unlock from Tmobile if you have an account in good standing every 90 days. If you bought it threw a third party try another method to get the device unlocked. Or if you bought it right out full price from Tmobile they can process the subsidy unlock request as well. Once you have your unlock code it should come with instructions or if not you can go to Tmobile.com support section for your phone the Samsung T999.
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I'm just curious why would it brick the phone? Both of these phones are the SAME hardware wise. Even under the IMEI sticker of my tmobile s3 it says i747..
Radios are different, kernel I believe is slightly different. Just not a good idea unless a dev specifically says its safe.
It also wont help with the unlock. Thats not ROM dependent.
Also, the phones are NOT the same. I don't know why some seem to think they must be the same. What are they basing this on? They are very similar yes, and perhaps the ROM from AT&T will work. I don't know. However, sometimes very similar phones may have some very important differences, like a kernel, radio, or one or more partition/s that may be offset by one perhaps because of some aforementioned reason. Or any combination of those. Don't assume the phones are identical because the Internet says so. If you are confident that the phones are in fact identical, then by all means, flash away. Just let us know how it turns out. It may work.
Do a "getprop" in terminal and you may note some very important differences in there, besides the device name/model, etc. Has anyone seen the ril.modem.board or crypto values from an AT&T SGSIII?
If the mount points are different, which they probably are, you copuld end uup with a very expensive paper weight unless you know how to make the needed changes to the updater-script, which you would have to hack to even flash the rom in the forst place because the ro.device props will be different.
Unlocking a phone has nothing to do with the ROM, most phones give you 10 chances to enter a correct unlock code until the phone it carrier locked with whatever carrier the phone is for.
The unlocking of the phone is usually hard flashed and if you exhaust all attempts, you have to send it in to get reflashed from the carrier.
T-Mobile will generally offer you a free unlock code after 60-90 days of a phone purchase, but that does not mean you can flash ATT on T-Mobile and vice versa.
They are on different bands and have different setups, if they were the same they would just have one phone for both carriers.
OP should try it for the lulz. Phones are SAME! XD
Chances are a repartitions flash in Odin would fix it, but i'm jot sure about that. It's just a bad idea.
Sent from my SGH-T999 using xda premium
http://www.primeinspiration.com/samsung-galaxy-note-4-gets-rooted-ahead-of-launch.html
dadymon53 said:
https://twitter.com/intent/follow?o...w_link&screen_name=NoFanboi&tw_p=followbutton
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While this is excellent news, whatever the method is will not work on the AT&T variant.
This is a major deciding factor for me on getting the Note 4. Root is a must have just for AdAway and Xposed.
MattMJB0188 said:
While this is excellent news, whatever the method is will not work on the AT&T variant.
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Why do you say that?
Sent from my Note3 Rocking DynamicKat or my G3
RiNo808 said:
Why do you say that?
Sent from my Note3 Rocking DynamicKat or my G3
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Because AT&T locks down all of their bootloaders. This makes it nearly impossible to root or flash custom roms. They've been doing this since last summer with the Galaxy S4.
Ya unfortunately. ATT's phone's for the most part have been rooted by geohots. Who now... Works for Google to fix the exploits for possible rooting. The ATT G3 was able to get rooted by Towelroot, I hope the same goes for Note 4... but I doubt it.
Yes, this is only for note 4's with unlocked bootloaders. It will not work on AT&T's or Verizon's. Possibly good news for the T-Mobile version though, as soon as we can get a stock rom dump to chainfire.
BTW: I would change my subject line OP so people don't get confused.
This is the first phone I have paid for not under contract. So as I started doing research u read about AT&T locking the bootloader. So last night I preordered the T-mobile phone just to have this ability. I did have to sign up for $50 a month just to be a customer but I will be a customer. I will cancel after the first month.
amtrucker22 said:
This is the first phone I have paid for not under contract. So as I started doing research u read about AT&T locking the bootloader. So last night I preordered the T-mobile phone just to have this ability. I did have to sign up for $50 a month just to be a customer but I will be a customer. I will cancel after the first month.
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Exactly what I'm doing!
rekman said:
Exactly what I'm doing!
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This will be my first time I am trying to convert a phone from one carrier to another. when I get the phone will I be able to just stick my existing AT&T sim card in to it and it work or will I have to wait for the 40 days and ask tmo to unlock it?
I know the iPhone 6/6+ came unlocked for tmo and you could just stick the AT&T sim card directly in to it and it would work.
amtrucker22 said:
This will be my first time I am trying to convert a phone from one carrier to another. when I get the phone will I be able to just stick my existing AT&T sim card in to it and it work or will I have to wait for the 40 days and ask tmo to unlock it?
I know the iPhone 6/6+ came unlocked for tmo and you could just stick the AT&T sim card directly in to it and it would work.
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From what I've gathered from the note 3 threads, we will most likely have to pay a website a fee to get an unlock code if we don't want to wait 40 days on contract for tmobile to do it. Chainfire released an app that had a "side effect" of carrier unlocking the sim for the Note 3. Whether that happens with the Note 4 remains to be seen. I'm just going to assume I'll have to pay a fee to an unlocking website.
unlock
amtrucker22 said:
This will be my first time I am trying to convert a phone from one carrier to another. when I get the phone will I be able to just stick my existing AT&T sim card in to it and it work or will I have to wait for the 40 days and ask tmo to unlock it?
I know the iPhone 6/6+ came unlocked for tmo and you could just stick the AT&T sim card directly in to it and it would work.
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I've had an htc one m7 with att and then wanted to sell it to a guy on craigslist who had t-mobile. you must sim unlock the device, it's a code. Just tell at&t or tmobile that you have a trip going to europe and need the phone unlocked to be able to use it. Then they will give you the unlock code. Put in the att sim card it will ask for a code then put it in.
What I did was I paid a guy on ebay 4$ to get the code and I got it within 5 seconds att was taking too long and the guy wanted the phone that day.
Guys are you sure that the T-Mobile Note 4 will fully work with AT&T?
Yakuzahi said:
Guys are you sure that the T-Mobile Note 4 will fully work with AT&T?
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Everything I've been hearing implies yes. I'm buying from t mobile then unlocking it
Yakuzahi said:
Guys are you sure that the T-Mobile Note 4 will fully work with AT&T?
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No one will know for certain until the phones actually come out, but if you go by the cellular bands announced for the T-Mobile version, it should work.
SO... Now that some have the Note 4 for ATT... Does this work or not?
sdlopez83 said:
SO... Now that some have the Note 4 for ATT... Does this work or not?
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No, and don't try it either.
CF-ROOT won't ever work on AT&T Note 4 because it requires an unlocked bootloader to achieve it.
Tikerz said:
No, and don't try it either.
CF-ROOT won't ever work on AT&T Note 4 because it requires an unlocked bootloader to achieve it.
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Is the AT&T bootloader def locked?
Won't be able to tell you until tomorrow
For all of you who are freaking out about it being a locked bootloader...so was the LG G3 for AT&T...we just got TWRP on it last week. Took 3 months but it is doable from the right people.
It was called "Bump" and I have tested the unlock myself with full custom twrp recovery & root.
Hello, I'm wondering if anyone has tried this. Obviously, the bootloader would need to be unlocked.
It works but doesn't. You'll still be locked to Sprint and the T-Mobile ROM will see that and you won't get service until you unlock the SIM. Other than that, it seemed okay when I tested it. Only tried it for a quick 15 minute boot though... Tested my flat mate's T-Mobile sim and my Sprint sim. Both wouldn't work.
Actually, I forgot to mention that Sprint has already SIM unlocked my phone. Knowing that, I could in theory at least flash the T-Mobile firmware and then with a TMobile sim get Tmobile wifi calling and VoLTE? Also would the phone then automatically get Tmobile software updates?
Uzephi said:
It works but doesn't. You'll still be locked to Sprint and the T-Mobile ROM will see that and you won't get service until you unlock the SIM. Other than that, it seemed okay when I tested it. Only tried it for a quick 15 minute boot though... Tested my flat mate's T-Mobile sim and my Sprint sim. Both wouldn't work.
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Actually, I forgot to mention that Sprint has already SIM unlocked my phone. Knowing that, I could in theory at least flash the T-Mobile firmware and then with a TMobile sim get Tmobile wifi calling and VoLTE? Also would the phone then automatically get Tmobile software updates?
Stanleywinthrop said:
Actually, I forgot to mention that Sprint has already SIM unlocked my phone. Knowing that, I could in theory at least flash the T-Mobile firmware and then with a TMobile sim get Tmobile wifi calling and VoLTE? Also would the phone then automatically get Tmobile software updates?
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I wouldn't know. It's worth a try. You won't brick your phone. If it doesn't work, the switch back to Sprint firmware is just another flash all away.
Uzephi said:
It works but doesn't. You'll still be locked to Sprint and the T-Mobile ROM will see that and you won't get service until you unlock the SIM. Other than that, it seemed okay when I tested it. Only tried it for a quick 15 minute boot though... Tested my flat mate's T-Mobile sim and my Sprint sim. Both wouldn't work.
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Uzephi said:
I wouldn't know. It's worth a try. You won't brick your phone. If it doesn't work, the switch back to Sprint firmware is just another flash all away.
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I may do so. The only risk is that I'd have to open up a new T Mobile account to fully test, and then I'd be scrambling (and out of pocket) if I couldn't get the tmobile flashed sprint phone to work. Do you have a link for the T Mobile and Sprint firmware?
Stanleywinthrop said:
I may do so. The only risk is that I'd have to open up a new T Mobile account to fully test, and then I'd be scrambling (and out of pocket) if I couldn't get the tmobile flashed sprint phone to work. Do you have a link for the T Mobile and Sprint firmware?
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https://forum.xda-developers.com/z2-force/how-to/how-to-return-to-stock-sprint-t3694783
I'd just ask one of the employees at the store if they'd let you see if your phone would work. I'm sure one wouldn't mind throwing their SIM in to make a sale.
Uzephi said:
https://forum.xda-developers.com/z2-force/how-to/how-to-return-to-stock-sprint-t3694783
I'd just ask one of the employees at the store if they'd let you see if your phone would work. I'm sure one wouldn't mind throwing their SIM in to make a sale.
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Sorry to be an annoying pest but is that link for TMobile Oreo? I notice the other carriers are specifically labeled Oreo.
Stanleywinthrop said:
Sorry to be an annoying pest but is that link for TMobile Oreo? I notice the other carriers are specifically labeled Oreo.
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That thread has all official Oreo flash-all
So I switched from a ATT S9+ to the (Unlocked) Note 10+ and have had the most horrible reception on ATT. I was wondering if it's happening to anyone else? I spoke with the ATT advanced tech team and she told me that because it's not the ATT Note 10+ that it's not configured for their network. Is this true? She then help me set up a new APN which was the same as before she just added hipri to the apn type. Is anyone else having this same issue or know what's going on? I need to know before I convince myself to return this one for a ATT Note 10+.
1. did you try to check and see if there's a software update?
2. try to turn off phone and turn back on
i using unlocked note10+ on verizon prepaid no problem.
i also have a freedomp simcard, it uses the att network, it showing the same 3 bar signals like my toy iphone8 at my house
I also use unlocked dual SIM 975F on ATT. It works but I feel like the speed is slow but ironically, when I compared to a '5G' iPhone on ATT I got faster speeds - go figure. I'm trying to get them to enable voLTE . I believe we miss band 30!which is used in cities. The trade off is worth it though, for me to have dual SIM.
skeet09 said:
So I switched from a ATT S9+ to the (Unlocked) Note 10+ and have had the most horrible reception on ATT. I was wondering if it's happening to anyone else? I spoke with the ATT advanced tech team and she told me that because it's not the ATT Note 10+ that it's not configured for their network. Is this true? She then help me set up a new APN which was the same as before she just added hipri to the apn type. Is anyone else having this same issue or know what's going on? I need to know before I convince myself to return this one for a ATT Note 10+.
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I'm having the same issues as we speak I currently have no bars. What will work and I did this with my Galaxy s10 plus , we need to flash the att software since it's unlocked. Not sure how to do it with this one. Let me see if I can find it and post it
netnerd said:
1. did you try to check and see if there's a software update?
2. try to turn off phone and turn back on
i using unlocked note10+ on verizon prepaid no problem.
i also have a freedomp simcard, it uses the att network, it showing the same 3 bar signals like my toy iphone8 at my house
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Yea I have the latest software. I have the N75U1. The whole reason why I got unlocked is because of bloatware and also so I'll be able to unlock and root the phone once that feature becomes available. So hopefully I made the right decision.
skylinegtr116 said:
I'm having the same issues as we speak I currently have no bars. What will work and I did this with my Galaxy s10 plus , we need to flash the att software since it's unlocked. Not sure how to do it with this one. Let me see if I can find it and post it
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That would be awesome because right now I'm regretting my decision on this unlocked phone so bad lol
skeet09 said:
That would be awesome because right now I'm regretting my decision on this unlocked phone so bad lol
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i have the unlocked version. I flashed AT&T firmware. Signal is the same. Makes no difference unlocked or carrier branded, the hardware is the same.
racinwarrior said:
i have the unlocked version. I flashed AT&T firmware. Signal is the same. Makes no difference unlocked or carrier branded, the hardware is the same.
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So based off of that should I return this phone and swap it out with the att version? I thought the unlocked had the same hardware and a little more? Sorry I didnt do my research on bands and all that good stuff.
skeet09 said:
Yea I have the latest software. I have the N75U1. The whole reason why I got unlocked is because of bloatware and also so I'll be able to unlock and root the phone once that feature becomes available. So hopefully I made the right decision.
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If you bought the N975U1, then it's already carrier unlocked.
If you mean unlock the bootloader, that will never happen. And there's about a 99.9% chance it will never be rooted.
Mr. Orange 645 said:
If you bought the N975U1, then it's already carrier unlocked.
If you mean unlock the bootloader, that will never happen. And there's about a 99.9% chance it will never be rooted.
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Yea I have the N975U1. Im guessing it has all the same hardware as the att note 10 plus or is there something different? Well... that's good to know lol I guess I bought it so it has no bloatware then lol thanks for the heads up.
skeet09 said:
Yea I have the N975U1. Im guessing it has all the same hardware as the att note 10 plus or is there something different? Well... that's good to know lol I guess I bought it so it has no bloatware then lol thanks for the heads up.
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Yup. Same exact hardware.
The N975U, the N975U1, and the N975W (Canadian) are all exactly the same hardware and you can cross flash hardware between them.
skeet09 said:
That would be awesome because right now I'm regretting my decision on this unlocked phone so bad lol
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I think it varies carrier and location. I just flashed the tmobile firmware which is the same for at&t and I got VOLTE ,WIFI CALLING AND ADVANCED MESSAGING back. Where I had no service I have 2 bars now.
So I'm happy now. Try it for yourself before returning
Mr. Orange 645 said:
Yup. Same exact hardware.
The N975U, the N975U1, and the N975W (Canadian) are all exactly the same hardware and you can cross flash hardware between them.
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Thank you for that info that's all I needed to know because what the att advanced tech team said was that the att note 10 was specifically for their network including hardware so I was thinking it had something this unlocked version didnt.
skeet09 said:
Thank you for that info that's all I needed to know because what the att advanced tech team said was that the att note 10 was specifically for their network including hardware so I was thinking it had something this unlocked version didnt.
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LOL. Nope same exact device, just different firmware.
I bought the unlocked too. I really needed wifi calling since my ATT service is poor at my house. Once I flashed the ATT firmware (including ATT User Data file) I got wifi calling, VoLTE, HD Voice, Visual Voice all back. My calls are 100% better. Before flashing I sounded muffled to the people who I called & calls were dropping. Now they are crystal clear & no drops. I mainly got the unlocked for the Trade in value on my Note 9. Totally worth it.
burrzoo said:
I bought the unlocked too. I really needed wifi calling since my ATT service is poor at my house. Once I flashed the ATT firmware (including ATT User Data file) I got wifi calling, VoLTE, HD Voice, Visual Voice all back. My calls are 100% better. Before flashing I sounded muffled to the people who I called & calls were dropping. Now they are crystal clear & no drops. I mainly got the unlocked for the Trade in value on my Note 9. Totally worth it.
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Any chance you can direct us to the post(s) that you followed to do this correctly? I've been collecting files to attempt this for AT&T, but haven't found a decent guide.
discothan said:
Any chance you can direct us to the post(s) that you followed to do this correctly? I've been collecting files to attempt this for AT&T, but haven't found a decent guide.
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Disclaimer: You do this at your own risk! Read & re-read the details! I am not responsible if you brick your phone
Now, all that being said, it was actually an easy process but I searched and read and read and re-read before trying anything.
I got the firmware & most importantly for AT&T, the UserData file from this thread (Read the entire Post (maybe 2 or 3 times), it's very informative:
https://forum.xda-developers.com/galaxy-note-10+/how-to/n975u-n975u1-firmware-links-t3957648
I followed the instructions from this S10 thread See POST #5 & substituted the N975U file Wording when they listed the file names for the S10 firmware:
https://forum.xda-developers.com/galaxy-s10/help/samsung-s10-unlocked-phone-att-firmware-t3912973
NOTE I used a patched version of ODIN from this thread (and not the version linked to in the S10 discussion thread above):
https://forum.xda-developers.com/android/software/patched-odin-3-13-1-t3762572
Lastly, I am using my old Note 9 AT&T SIM Card. From what I've read, at any given time, AT$T can update their system and your IMEI might not correspond to their ATT specific list and apparently you can lose functionality. I've been fine for a week and others have been flashing unlocked phones with ATT firmware for years so I'll take my chances.
Good Luck!
discothan said:
Any chance you can direct us to the post(s) that you followed to do this correctly? I've been collecting files to attempt this for AT&T, but haven't found a decent guide.
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Use the patched version of Odin.
Turn the phone off and press and hold the power,up and down volume buttons at the same time.
Let go once the download screen appears.
Go ahead and put all the files in the correct spot..AB to AN ,BL to BL and so on.
Once complete just start the flash and that's it. Leave the att sim in the phone through the whole process.
Done...
discothan said:
Any chance you can direct us to the post(s) that you followed to do this correctly? I've been collecting files to attempt this for AT&T, but haven't found a decent guide.
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Have you tried flashing it yet?
skeet09 said:
Have you tried flashing it yet?
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I have.
I'm not sure if the ATT file took.
I know I lost my apps/customizations...which I was expecting since I used the home-csc file.
Also my GMAIL app is not right, its missing the ability to set the frequency of SYNCs, which I had with the stock Gapps.
Guys,
I got a Sprint Note 10+ from one of my friend who was leaving for good to a diferent country. He is on Sprint. I am on AT&T. What's the process to flash this to make it work like a Note 10+ on AT&T?
kingfisher1111 said:
Guys,
I got a Sprint Note 10+ from one of my friend who was leaving for good to a diferent country. He is on Sprint. I am on AT&T. What's the process to flash this to make it work like a Note 10+ on AT&T?
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Sure hope he got Sprint to unlock it for you before he left. Because if not, you'll have fun getting it to accept your att sim card.
If the unlock is done already you should be able to factory reset and insert your sim card and it should detect and customize for att settings.
dottat said:
Sure hope he got Sprint to unlock it for you before he left. Because if not, you'll have fun getting it to accept your att sim card.
If the unlock is done already you should be able to factory reset and insert your sim card and it should detect and customize for att settings.
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Click to collapse
He didn't. Any one that can provide unlock codes for a reasonable price?
kingfisher1111 said:
Guys,
I got a Sprint Note 10+ from one of my friend who was leaving for good to a diferent country. He is on Sprint. I am on AT&T. What's the process to flash this to make it work like a Note 10+ on AT&T?
Click to expand...
Click to collapse
Moving across the globe won't prevent your friend from getting a hold of Sprint and requesting the device to be unlocked.
Try getting in touch with him and ask him to take care of it. As long as the device qualifies for unlocking with Sprint then this shouldn't be an issue.
Do i have to flash ATT firmware ?
kingfisher1111 said:
Do i have to flash ATT firmware ?
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Is the phone network/sim unlocked? If it is then the process on how to do this has been covered indepth already. Be aware though that some features will only be provisioned to phone's that AT&T sells (they determine this by an IMEI whitelist). This also has been discussed extensively on the forum.
If your phone is not sim/network unlocked then you will be wasting your time as it will only work on the Sprint network. At this point get a hold of your friend who gave you the phone and ask him to get a hold of Sprint. Your friend will need to ask Sprint to unlock the phone, provided the phone qualifies to be network/sim unlocked by Sprint.