Database Users

[Q] Unlocked Atrix

Hello my friends,
i was in vacation and a I bought a unlocked atrix 4g. My phone have AT&T logo at the back but it is unlocked for any GSM carrier.
OK ! I returned to Brazil and now i want install the homebase ROM.
My doubt is ..... which kind of ROM should I use ? International or AT&T ? I dont know which group my phone belongs. Because it's unlocked but he has the AT&T ROM.
Thanks for the support.

So it is an at&t phone right?
Lets try to find The logical thing to do here...
Its an at&t phone with at&t ROM... Uhm What do you think?
Sent from my MB860 using Tapatalk

Thanks for your reply.
Yeah, following the logical though I need install the AT&T ROM. But my doubt is:
The cellphone is unlocked and I use it with other GSM carrier than AT&T. If I install the home base ROM for AT&T smarthphones there is some risk to have my phone Locked again to AT&T carrier ? Or, for the reason I have a unlocked cellphone and use it in international area, I should install the international ROM ?
Thanks for your attention

I own an unlocked at&t atrix with my carrier in México wich is Telcel. With an at&t ROM. No problem at all.
Doesnt lock again
Sent from my MB860 using Tapatalk

The phone won't be locked again once it's carrier-unlocked (sim unlocked).
It's totally unrelated to the ROM you use for your phone. You can install any ROM you like on your phone. This is from my own experience.

mraxido said:
I own an unlocked at&t atrix with my carrier in México wich is Telcel. With an at&t ROM. No problem at all.
Doesnt lock again
Sent from my MB860 using Tapatalk
Click to expand...
Click to collapse
sspa said:
The phone won't be locked again once it's carrier-unlocked (sim unlocked).
It's totally unrelated to the ROM you use for your phone. You can install any ROM you like on your phone. This is from my own experience.
Click to expand...
Click to collapse
Really thanks for the answers!
My logical thinking was... my phone have a different configuration to accept all gsm carriers, and i was affraid to lose that configuration after install ROM's and other things ! A noob doubt ! Thanks for the attention

Official rom flashing

is flashing official rom from sammobile.com will brick my mobile???
or create IMEI problem.
As i rooted my current official firmware. i want to go back to stock. but i took backup of my efs folder but i haven't found any nv_data file on it.
Please advise is official rom will to create IMEI probem.

Depends on which phone and firmware u got
Sent from my SAMSUNG-SGH-I337 using Tapatalk 4

Demented22 said:
Depends on which phone and firmware u got
Sent from my SAMSUNG-SGH-I337 using Tapatalk 4
Click to expand...
Click to collapse
i bought my mobile from France so i download this rom
I9505XXUBMEA_I9505OXXBMF1_XEF MAIN
which i download from sammobile.com

Ohhh gotcha
Sent from my SAMSUNG-SGH-I337 using Tapatalk 4

I was actually wondering... If I'm network locked and I flashed a new stock ROM, would it remove the network lock? I don't think it will, but just want to confirm and to know the rationale behind all of it. I was thinking of rooting my S4 to get it to downgrade and have the network lock removed, but don't know about all these things. A lot of threads mention rooting for custom firmwares but not rooting in order to remove network lock afterwards.
Sent from my GT-I9505 using Tapatalk 4

ladyhaly said:
I was actually wondering... If I'm network locked and I flashed a new stock ROM, would it remove the network lock? I don't think it will, but just want to confirm and to know the rationale behind all of it. I was thinking of rooting my S4 to get it to downgrade and have the network lock removed, but don't know about all these things. A lot of threads mention rooting for custom firmwares but not rooting in order to remove network lock afterwards.
Sent from my GT-I9505 using Tapatalk 4
Click to expand...
Click to collapse
Flashing any rom will not remove the network lock... but it can brick ur phone if u flashed a rom that is not intended for ur phone, if u want to get it unlocked ur best option for that is call ur current carrier to get the unlock code, it could cost u for the code but thats about the only way besides rooting and trying to unlock it that way after root.
Sent from my SAMSUNG-SGH-I337 using Tapatalk 4

I've unlocked my phone using an unlock code with one of those websites. It's a success. No problems. The problems I encountered recently had to do with the defective battery that came with my S4. What I'm curious to know now is if I can flash a ROM from my country where I got my phone... Just to make it like an unbranded phone. This is because when I boot up my phone, I see my carrier's logo and one of the wallpapers they replaced with their carrier logo as well. It's pretty annoying... So I wonder if I can flash a non-carrier unbranded ROM from my country to my phone. And do ai need to root to do so?
Sent from my GT-I9505 using Tapatalk

What site offers the cheapest unlocking service?

Anyone?

just flash a firmware with odin yourself for free

It's easy to do, don't pay for that service.... Do it yourself = Free

I had no idea it can work that way? I have a G900T. You are saying if I grab the stock firmware that I already have on my phone and flash it, the locked feature is gone?

prot- said:
just flash a firmware with odin yourself for free
Click to expand...
Click to collapse
s13silviaguy said:
It's easy to do, don't pay for that service.... Do it yourself = Free
Click to expand...
Click to collapse
Or is there a better firmware to put on it?

bump

1. go to http://www.sammobile.com/firmwares/
2. grab the stock firmware compatible with your phone
3. flash with odin
:good:
Im not sure what other roms will work on the G900T but me for instance has a G900I but i use a G900F as it works the same.

prot- said:
1. go to http://www.sammobile.com/firmwares/
2. grab the stock firmware compatible with your phone
3. flash with odin
:good:
Im not sure what other roms will work on the G900T but me for instance has a G900I but i use a G900F as it works the same.
Click to expand...
Click to collapse
That's awesome. Thanks!

s13silviaguy said:
It's easy to do, don't pay for that service.... Do it yourself = Free
Click to expand...
Click to collapse
I tried this just now, loaded G900TUVU1ANCH_G900TTMB1ANCH_G900TUVU1ANCH_HOME.tar through ODIN and it still asks for the SIM unlock when I put my SIM in. Any ideas?

eezeekial said:
I tried this just now, loaded G900TUVU1ANCH_G900TTMB1ANCH_G900TUVU1ANCH_HOME.tar through ODIN and it still asks for the SIM unlock when I put my SIM in. Any ideas?
Click to expand...
Click to collapse
Did you finance your device?
Sent from my SM-G900T

xda23 said:
Did you finance your device?
Sent from my SM-G900T
Click to expand...
Click to collapse
No I bought it from someone off Craigslist. Wanted to start playing with it since there hasnt been much progress on the AT&T version.

eezeekial said:
No I bought it from someone off Craigslist. Wanted to start playing with it since there hasnt been much progress on the AT&T version.
Click to expand...
Click to collapse
You're screwed for now, ATT is locked down until they crack it. Same with Verizon.

bloodrain954 said:
You're screwed for now, ATT is locked down until they crack it. Same with Verizon.
Click to expand...
Click to collapse
Screwed in which way? I could still purchase an unlock code for it and use it on ATT. I would like to avoid that if there is another way though.

If your phone is network locked, then flashing a new ROM will not unlock it, as it is the IMEI that is network locked, not the firmware on the phone.
I got my phone from Vodafone UK and unlocked it the next day using a code from www.unlockunit.com. Cost about $25. I did not have to root / flash the phone, as I simply put in a SIM card from a network other than the one my phone is locked to and the phone asked me for an unlock code.
I have no idea if ATT firmware will stop working once you unlock your phone. but I can confirm that the Vodafone UK firmware on my phone is still working fine.
Hope this helps. If so, please hit thanks button

Has anyone found a cheaper price or way to unlock the tmobile Gs5?every place that I have found wants $30.00 plus dollars.any help will be greatly appreciated. Thanks

I've used this site before:
http://www.cellunlocker.net
I don't know if it'll work on all carriers in North America, but you can plug in your details on the site to check before you buy a code.
Took about 4 hours to get my code.
Sent from my SM-G900W8 using XDA Premium 4 mobile app

Tybalt said:
I've used this site before:
http://www.cellunlocker.net
I don't know if it'll work on all carriers in North America, but you can plug in your details on the site to check before you buy a code.
Took about 4 hours to get my code.
Sent from my SM-G900W8 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I used this site as well, cost me $15 and took about 5 hours to receive the code.
Sent from my SM-G900W8 using Tapatalk

[Q] International Unlock On STOCK NG2

Hi, I've been reading a lot of posts and finally got courage to ask if there's a way to do a international unlock on Sprint Samsung Galaxy S4 running stock NG2, i already tried to downgrade to MF9 but couldn't pass in odin.
Any thoughts?

mbwprod said:
Hi, I've been reading a lot of posts and finally got courage to ask if there's a way to do a international unlock on Sprint Samsung Galaxy S4 running stock NG2, i already tried to downgrade to MF9 but couldn't pass in odin.
Any thoughts?
Click to expand...
Click to collapse
I would really like to know this as well I got caught up in the MF9 boot loop. Fixed that then tried to go MJA MDC MF9 and broke thing horribly. Just trying to get my Sprint Samsung S4 SPH-L720 over to T-mobile or at&t. Someone that could point us in the right direction with getting NG2 unlocked Internationally then domestically

mbwprod said:
Hi, I've been reading a lot of posts and finally got courage to ask if there's a way to do a international unlock on Sprint Samsung Galaxy S4 running stock NG2, i already tried to downgrade to MF9 but couldn't pass in odin.
Any thoughts?
Click to expand...
Click to collapse
Mozze3291 said:
I would really like to know this as well I got caught up in the MF9 boot loop. Fixed that then tried to go MJA MDC MF9 and broke thing horribly. Just trying to get my Sprint Samsung S4 SPH-L720 over to T-mobile or at&t. Someone that could point us in the right direction with getting NG2 unlocked Internationally then domestically
Click to expand...
Click to collapse
Looks like neither of ya'll read enough. Well follow this thread.
http://forum.xda-developers.com/showthread.php?t=2703955
There are other similar threads to search and read on.
Once we got the 4.3 MJA update. There was when out bootloader got locked by knox security from Samsung. We can't downgrade to any firmware by Odin but we can downgrade by ROMs just not the bootloader. You either need to use the firmware you are using to restore or update to a newer firmware.
Side comment. I still don't know why would you buy a specific phone for a carrier and use it for another carrier. Doesn't make sense.
Sent from my SPH-L720

ROMANTiC KiD said:
Looks like neither of ya'll read enough. Well follow this thread.
http://forum.xda-developers.com/showthread.php?t=2703955
There are other similar threads to search and read on.
Once we got the 4.3 MJA update. There was when out bootloader got locked by knox security from Samsung. We can't downgrade to any firmware by Odin but we can downgrade by ROMs just not the bootloader. You either need to use the firmware you are using to restore or update to a newer firmware.
Side comment. I still don't know why would you buy a specific phone for a carrier and use it for another carrier. Doesn't make sense.
Sent from my SPH-L720
Click to expand...
Click to collapse
It's all about pennies, here in Mexico it's almost 1/3 of retail price if you bring a smartphone from USA and unlock it

mbwprod said:
It's all about pennies, here in Mexico it's almost 1/3 of retail price if you bring a smartphone from USA and unlock it
Click to expand...
Click to collapse
But why use a CMDA phone with a GSM carrier?
Sent from my SPH-L720

ROMANTiC KiD said:
But why use a CMDA phone with a GSM carrier?
Sent from my SPH-L720
Click to expand...
Click to collapse
First of all thanks for the thread you provided, it helped me to get my phone unlocked and working on Telcel Mexico Carrier, but i can't make 3g service work, i think i screwed some ServiceMode Settings, is there any way to reset them to default and start over?
Thanks in advance

mbwprod said:
First of all thanks for the thread you provided, it helped me to get my phone unlocked and working on Telcel Mexico Carrier, but i can't make 3g service work, i think i screwed some ServiceMode Settings, is there any way to reset them to default and start over?
Thanks in advance
Click to expand...
Click to collapse
You might want to Odin back to stock ng2 and do a factory reset. Also have you change your apns? That could be why you aren't getting 3g.
Sent from my SPH-L720 using XDA Free mobile app

ROMANTiC KiD said:
You might want to Odin back to stock ng2 and do a factory reset. Also have you change your apns? That could be why you aren't getting 3g.
Sent from my SPH-L720 using XDA Free mobile app
Click to expand...
Click to collapse
I just did that and several apps (Internet, S Voice, S Wave) keep crashing after restart) also the ServiceMode Settings remain unchanged. Please help me here, I'm starting to panic!

Flashing T Mobile firmware on ATT

So I have seen multiple people here on the forum claiming to do it or wanting to do it and I am a bit confused. I have an s7 edge on contract from ATT. Can I do this? If I flash T Mobile's firmware on this does this make my phone usable with a T Mobile sim?
Thank you

s7fnatic said:
So I have seen multiple people here on the forum claiming to do it or wanting to do it and I am a bit confused. I have an s7 edge on contract from ATT. Can I do this? If I flash T Mobile's firmware on this does this make my phone usable with a T Mobile sim?
Thank you
Click to expand...
Click to collapse
Yes you can and only thing I've noticed not working is video calling and WiFi calling with it seems I get better signal with there's.

bec48 said:
Yes you can and only thing I've noticed not working is video calling and WiFi calling with it seems I get better signal with there's.
Click to expand...
Click to collapse
Yes to both questions?

s7fnatic said:
So I have seen multiple people here on the forum claiming to do it or wanting to do it and I am a bit confused. I have an s7 edge on contract from ATT. Can I do this? If I flash T Mobile's firmware on this does this make my phone usable with a T Mobile sim?
Thank you
Click to expand...
Click to collapse
Yes you can flash it. I'm currently on T Mobile with ATT.

zombo91 said:
Yes you can flash it. I'm currently on T Mobile with ATT.
Click to expand...
Click to collapse
Thank you. I am going to go ahead and give it a try.

bec48 said:
Yes you can and only thing I've noticed not working is video calling and WiFi calling with it seems I get better signal with there's.
Click to expand...
Click to collapse
Can you advise the procedure? I'm currently permanently locked to AT&T network and would like to use a carrier (SK Telecom - Korea).

Wouldn't you still need to SIM unlock your AT&T phone to use on T-mobile network? I don't think just flashing another carriers ROM will allow you to use their network. Am I Wrong in thinking this way?

bec48 said:
Yes you can and only thing I've noticed not working is video calling and WiFi calling with it seems I get better signal with there's.
Click to expand...
Click to collapse
Was the device on the PK1 firmware before flashing to tmobile??

jabreu203 said:
Wouldn't you still need to SIM unlock your AT&T phone to use on T-mobile network? I don't think just flashing another carriers ROM will allow you to use their network. Am I Wrong in thinking this way?
Click to expand...
Click to collapse
I had the same question and that's why I haven't done anything on my phone so far. Also it does not help that I am a noob with all these things and dont want to mess up my phone since this is my daily driver.

vip_lexus147 said:
Was the device on the PK1 firmware before flashing to tmobile??
Click to expand...
Click to collapse
I am not sure if I am looking at the right place but I think you are looking for the build number right? Mine is mmb29m.g935aucu4apj4

ronkim83 said:
Can you advise the procedure? I'm currently permanently locked to AT&T network and would like to use a carrier (SK Telecom - Korea).
Click to expand...
Click to collapse
Go to http://www.cellunlocker.net/ and get an unlock code for your phone. I unlocked my tmobile S7 edge this way right out of the gate worked just fine.

ShrekOpher said:
Go to http://www.cellunlocker.net/ and get an unlock code for your phone. I unlocked my tmobile S7 edge this way right out of the gate worked just fine.
Click to expand...
Click to collapse
I am confused. Can I not flash the phone with t mob firmware without unlocking? I thought this was just a software restriction and would have been removed by flashing a new firmware.

s7fnatic said:
I am confused. Can I not flash the phone with t mob firmware without unlocking? I thought this was just a software restriction and would have been removed by flashing a new firmware.
Click to expand...
Click to collapse
Flashing the phones firmware will not carrier unlock the device. That is tied to the IMEI. It will boot up the Tmobile software, but it still will only work on AT&T network.
Also in order to unlock the device from AT&T they will most likely bill you for the remaining value of the device as soon as you request an unlock code. You cannot take a phone from one carrier to another unless it is fully paid off.

I have an Unlocked AT&T S7 and I can put in a T-Mobile sim and it works. So why Flash T-Mobile onto an AT&T phone if its Unlocked??? My AT&T S7 is Paid for in Full.
My question is, if you do flash T-Mobile firmware on AT&T phone will you get OTA updates off of T-Mobile, like when Nougat comes out????? Also would you still have wifi calling and get all the LTE bands of a T-Mobile phone????

tailgunner9 said:
I have an Unlocked AT&T S7 and I can put in a T-Mobile sim and it works. So why Flash T-Mobile onto an AT&T phone if its Unlocked??? My AT&T S7 is Paid for in Full.
My question is, if you do flash T-Mobile firmware on AT&T phone will you get OTA updates off of T-Mobile, like when Nougat comes out????? Also would you still have wifi calling and get all the LTE bands of a T-Mobile phone????
Click to expand...
Click to collapse
Yes. All the edge models have identical hardware. Their only differentiating factor is the firmware they run. I flashed the unlocked firmware onto my AT&T model and now get updates directly from Samsung. If you flash the T-mobile firmware on the AT&T device, all features will work and updates will come from T-Mobile. Same would work if you flash the AT&T firmware onto a T-Mobile variant. Or Verizon to Sprint, Sprint to AT&T, etc.
Sent from my SM-G935U using Tapatalk

stew1411 said:
Yes. All the edge models have identical hardware. Their only differentiating factor is the firmware they run. I flashed the unlocked firmware onto my AT&T model and now get updates directly from Samsung. If you flash the T-mobile firmware on the AT&T device, all features will work and updates will come from T-Mobile. Same would work if you flash the AT&T firmware onto a T-Mobile variant. Or Verizon to Sprint, Sprint to AT&T, etc.
Sent from my SM-G935U using Tapatalk
Click to expand...
Click to collapse
So you are saying this about S7 Edge, does this work the same for the AT&T S7 SM-G930A? Mine is not the Factory Unlocked model but I got the unlock code from AT&T. I thought the firmware came from the carrier and not Samsung on updates on a carrier branded phone???
So if I flash T-Mobile into my AT&T S7, I can also flash it back to AT&T firmware should I go back to AT&T???
Think you are talking about flashing firmware on your that is original for the Factory Unlocked version, think its SM-G930F

tailgunner9 said:
So you are saying this about S7 Edge, does this work the same for the AT&T S7 SM-G930A? Mine is not the Factory Unlocked model but I got the unlock code from AT&T. I thought the firmware came from the carrier and not Samsung on updates on a carrier branded phone???
So if I flash T-Mobile into my AT&T S7, I can also flash it back to AT&T firmware should I go back to AT&T???
Think you are talking about flashing firmware on your that is original for the Factory Unlocked version, think its SM-G930F
Click to expand...
Click to collapse
Well people on the S7 edge have flashed the tmo firmware on their AT&T models. Updates come from carrier on branded phones. So if you have an AT&T phone and flash another carriers firmware, it would only be branded by the physical logo on the back. It's like buying a Windows PC and installing Linux. The updates would come from Linux, not Windows, and vice versa. You could always go back to the AT&T firmware, just make sure that both firmwares you flash are on the same bootloader version.
Sent from my SM-G935U using Tapatalk

stew1411 said:
Well people on the S7 edge have flashed the tmo firmware on their AT&T models. Updates come from carrier on branded phones. So if you have an AT&T phone and flash another carriers firmware, it would only be branded by the physical logo on the back. It's like buying a Windows PC and installing Linux. The updates would come from Linux, not Windows, and vice versa. You could always go back to the AT&T firmware, just make sure that both firmwares you flash are on the same bootloader version.
Sent from my SM-G935U using Tapatalk
Click to expand...
Click to collapse
But I have always read that OTA updates come from Carrier not from Samsung. Thanks for the info. Maybe AT&T will be out with Nougat by Spring after S8 are out for sale.

tailgunner9 said:
But I have always read that OTA updates come from Carrier not from Samsung. Thanks for the info. Maybe AT&T will be out with Nougat by Spring after S8 are out for sale.
Click to expand...
Click to collapse
Updates do come from the carrier. However, if you flash a different carriers firmware you will start getting updates from the new carrier.
Sent from my SM-G935U using Tapatalk

ShrekOpher said:
Flashing the phones firmware will not carrier unlock the device. That is tied to the IMEI. It will boot up the Tmobile software, but it still will only work on AT&T network.
Also in order to unlock the device from AT&T they will most likely bill you for the remaining value of the device as soon as you request an unlock code. You cannot take a phone from one carrier to another unless it is fully paid off.
Click to expand...
Click to collapse
You can pay a 3rd party service to unlock it on contract or not I have done it several times. (I use UnlockUnit for all my devices contract or not get code in like 15min)
Sent from my SAMSUNG-SM-G930A using Tapatalk