Develop Bugs

Sim unlock 4.4.2

Is it possible to Sim unlock 4.4.2? Maybe by flashing a 4.1.1 modem?

blu422 said:
Is it possible to Sim unlock 4.4.2? Maybe by flashing a 4.1.1 modem?
Click to expand...
Click to collapse
Ive flashed over 24 gn2 and s3's through old modems and menu. There's a sticky about it.

blu422 said:
Is it possible to Sim unlock 4.4.2? Maybe by flashing a 4.1.1 modem?
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Click to collapse
By Sim unlock, do you mean you want to use an AT&T phone on another carrier? If that's what you are looking for, give me a few minutes to test something.

creepyncrawly said:
By Sim unlock, do you mean you want to use an AT&T phone on another carrier? If that's what you are looking for, give me a few minutes to test something.
Click to expand...
Click to collapse
Isn't that what a sim unlock is? Correct me if I have it wrong.

emeianoite said:
Isn't that what a sim unlock is? Correct me if I have it wrong.
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Click to collapse
Yes, of course.
But I am fairly new to the note 2 so I don't have much stored up information. I now see a post that indicates that flashing a certain 4.1.1 modem, MJ2 I think, gives the user a service menu where you can change the unlock setting. So now the OP's question makes sense. Only he should have been able to find the same post I did.
In a minute, as soon as my wife lets me borrow her phone, I'm going to test an unlock tool I know about to see if it works on 4.4.2 stock.

creepyncrawly said:
Yes, of course.
But I am fairly new to the note 2 so I don't have much stored up information. I now see a post that indicates that flashing a certain 4.1.1 modem, MJ2 I think, gives the user a service menu where you can change the unlock setting. So now the OP's question makes sense. Only he should have been able to find the same post I did.
In a minute, as soon as my wife lets me borrow her phone, I'm going to test an unlock tool I know about to see if it works on 4.4.2 stock.
Click to expand...
Click to collapse
Yes, but that's for 4.1.2 idk if it will work with 4.4.2 I just don't wanna accidentally ruin my phone. And I think you mean LJ2 not MJ2 and thanks that'd be great if you could keep me posted

emeianoite said:
Ive flashed over 24 gn2 and s3's through old modems and menu. There's a sticky about it.
Click to expand...
Click to collapse
Were any of them on 4.4.2?

blu422 said:
Were any of them on 4.4.2?
Click to expand...
Click to collapse
The dialer codes that worked on 4.1.1 to unlock the phone via the hidden menu. Does not work on 4.4.2 anymore. And being you took the ota update, there's no way of downgrading you firmware...
Sorry to tell you..
Another way is to contact AT&T by email, about unlocking the phone. Can't remember what the exact name is, but goggle search it. They'll send you the SIM code, if the phone is out of contact!!! Takes about 2-3 days when I did my skyrocket to run on TMO.
Just my 2¢®™
Sent from my T889 N2/N3/S5..

At one time, there was a free app on XDA called GalaxSim Unlock. For some reason, the developer pulled the free app download, and the only version then available was the paid version on Play. I have a copy of the free one from before it was pulled, and it works on the Captivate and the Galaxy S II, and some other galaxy phones, not sure which ones. So I tried it tonight on my wife's Note 2 which is running Stock NE5 with TWRP recovery and has the MC3 boot loader. However, the unlock failed, saying unable to read nvdata. So it's apparently a no go on this phone.

Bajanman said:
The dialer codes that worked on 4.1.1 to unlock the phone via the hidden menu. Does not work on 4.4.2 anymore. And being you took the ota update, there's no way of downgrading you firmware...
Sorry to tell you..
Another way is to contact AT&T by email, about unlocking the phone. Can't remember what the exact name is, but goggle search it. They'll send you the SIM code, if the phone is out of contact!!! Takes about 2-3 days when I did my skyrocket to run on TMO.
Just my 2¢®™
Sent from my T889 N2/N3/S5..
Click to expand...
Click to collapse
That only works if the contract the phone was in was not defaulted, and or you are the original owner of the phone.

re: sim unlock
I recently bought a soft bricked SGH-I317 (stuck on "firmware upgrade encountered and issue"). I tried flashing LJ2 firmware and got it to change to being hung on the "Samsung Note II" logo. I think this is when it changed as I was trying all sorts of flashing trying to get off the "firmware upgrade encountered an issue" screen (also Kies would not recognize that the phone was connected). Tried different recoveries and firmware without making any progress until I flashed the 4.4.2 (I317UCUCNE5) bootloader. The phone booted into Philz recovery after that. I then flashed the stock LJ2 firmware w/ LJ2 modem, sim unlocked the phone and then flashed Skynote Air 4.3 along with the 4.4.2 (NE5) modem. This is the setup that I am using on T-Mobile now with no problems except that the Knox counter is tripped. Hope this helps shed some light on the problem.
I discovered a problem with Skynote 4.3 with the 4.4.2 bootloader. If I try to charge it with the phone turned off, the phone will freeze at the empty battery symbol and requires a battery pull to get the phone to turn on. Everything else seems to work okay.

jsdad said:
I recently bought a soft bricked SGH-I317 (stuck on "firmware upgrade encountered and issue"). I tried flashing LJ2 firmware and got it to change to being hung on the "Samsung Note II" logo. I think this is when it changed as I was trying all sorts of flashing trying to get off the "firmware upgrade encountered an issue" screen (also Kies would not recognize that the phone was connected). Tried different recoveries and firmware without making any progress until I flashed the 4.4.2 (I317UCUCNE5) bootloader. The phone booted into Philz recovery after that. I then flashed the stock LJ2 firmware w/ LJ2 modem, sim unlocked the phone and then flashed Skynote Air 4.3 along with the 4.4.2 (NE5) modem. This is the setup that I am using on T-Mobile now with no problems except that the Knox counter is tripped. Hope this helps shed some light on the problem.
I discovered a problem with Skynote 4.3 with the 4.4.2 bootloader. If I try to charge it with the phone turned off, the phone will freeze at the empty battery symbol and requires a battery pull to get the phone to turn on. Everything else seems to work okay.
Click to expand...
Click to collapse
My sister sell her note 2 to me because she's gonna upgrade to samsung galaxy S5. It was an att and I'm using T-mobile.
I did check the baseband ver and It was i317UCUCNE5 (4.4.2 OTA). the question is it is safe to flash base band ver i317UCALJ2 using ODIN?
Can you do the step by step process and also links of the files and software did you use please? thanks

emeianoite said:
Isn't that what a sim unlock is? Correct me if I have it wrong.
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Click to collapse
It's a network unlock, so you are free to use any GSM carrier. You can lock your sim card -- then a pin is required for your phone to connect to your carrier. It's the old skool method to stop unauthorized use, from the days before a lock screen pin.

I bought a SGH-I317M today off someone. It was locked to Bell Canada. I did the dumb thing by letting Kies update the firmware. And as i've read I'm pretty screwed for downgrading it. I tried unlocking it but the hidden menu didn't give me the 4th option in the network lock path. So i tried bunch of things which at one point required me installing Kies for drivers and thats when I i let it slip and update. So now I'm still searching for a method to unlock my phone. I've gotten philstouch recovery on and Skynote working. I just tried flashing the rogers_j2 modem.. hoping this will work.. you think I should just pay one of those sites or a retailer for the sim unlock ccode?

trunks10k said:
I bought a SGH-I317M today off someone. It was locked to Bell Canada. I did the dumb thing by letting Kies update the firmware. And as i've read I'm pretty screwed for downgrading it. I tried unlocking it but the hidden menu didn't give me the 4th option in the network lock path. So i tried bunch of things which at one point required me installing Kies for drivers and thats when I i let it slip and update. So now I'm still searching for a method to unlock my phone. I've gotten philstouch recovery on and Skynote working. I just tried flashing the rogers_j2 modem.. hoping this will work.. you think I should just pay one of those sites or a retailer for the sim unlock ccode?
Click to expand...
Click to collapse
Please let me know if it works. mine is galaxy note 2 4.4.2 NE5 baseband and I've done some research and they said that if you upload your firmware thru OTA there is a possibility that it will soft brick you phone due to unknown security reason.
I'm just waiting for conformation from some one that it's safe to flash J2 modem on a NE5 OTA

in the US, if your phone is more than 6 months old and your contract is in good standing you can ask for the unlock code. I don't know if Canada is similar.

I was going to post the same question about unlocking I317 4.4.2, and found this post which is similar to what I'm looking for so just want to add to pump the question.
It's been a while but I have done unlocking for other At&t models (S3, S4) and learned that later versions don't with the option in hidden menu to unlock, and the work around is to downgrade. However with devices that have OTA updates, it's not possible to downgrade the bootloader.
Is this the same for Note 2 I317? If so, any other method available to unlock this device to use it on other GSM networks? (I just bought one and it's on Kitkat 4.4.2 UCUCNE5, and looking for unlock...)

It's only the modem that needs to be flashed. So whatever bootloader you're on doesn't matter.

I wanted to unlock my phone today. ATT website wouldn't let me do it until my contract was fufilled, so I did some web searching.
Started with 4.4.2 and NE5 baseband. Loaded original baseband via recovery, and used the debug menu to unlock the sim. After that, updated the baseband back to the latest. Tmobile sim seems to be working just fine.

dmrfresh said:
I wanted to unlock my phone today. ATT website wouldn't let me do it until my contract was fufilled, so I did some web searching.
Started with 4.4.2 and NE5 baseband. Loaded original baseband via recovery, and used the debug menu to unlock the sim. After that, updated the baseband back to the latest. Tmobile sim seems to be working just fine.
Click to expand...
Click to collapse
What bootloader were u on?
Sent from the TermiNOTEr 2! ?

Any way to get wifi calling on unlocked s9?

Is there any way to get wifi calling on att with an unlocked s9 from best buy? Flashing att firmware or would it be best to get the att model? Must have wifi calling for work reasons and I hate all the bloatware but might not have a choice.

at&t probably blocks it, if you don't get their version. I have an unlocked, but on T-Mobile, and it works.

I flashed the AT&T firmware on my unlocked S9 and wifi calling and video calling worked.
With the stock firmware on the unlocked S9 nether option was there

Can you point me in the direction of a download for the stock firmware for AT&T? I'm wanting to do the same as well, but feeling pretty clueless about where to obtain it. thanks!

Same here. It works for me on T-Mobile

If I flash the att firmware will I still get firmware updates?

f10a said:
Flashing att firmware or would it be best to get the att model?
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Click to collapse
if you flash the att firmware or buy it straight from att you will end up a device supporting the same capabilities. So it's down to your tech skills or budget.

Where can I find the latest att firmware? I did not see it on sammobile.

How to
Step 1 Go to this thread for Firmware (thanks @iBowToAndroid)
You will want to go to the link for the U firmware and find the folder with the AT&T userdata file (RB7) download the user data file and the full firmware.
Step 2 Go to this thread to get the modified version of Odin that recognizes the GS9 firmware files. (Thanks @mweinbach and Raymondf )
You will then flash the downloaded files from Step 1 in Odin, after flashing the firmware the phone will boot into recovery and you will need to wipe data and cache.

Thanks so much... that did actually help me... as a fairly tech savvy person who doesn't really get into this stuff much, the lingo I didn't know was leading me astray... I had come across that thread but didn't recognize it as anything that would help me. Thanks again! Onward to bricking my phone!

StolenVW said:
I flashed the AT&T firmware on my unlocked S9 and wifi calling and video calling worked.
With the stock firmware on the unlocked S9 nether option was there
Click to expand...
Click to collapse
Thanks for the info. A follow-up question: is it possible to flash it back to the stock unlocked firmware? The reason is that I'll need to use foreign SIM card when I travel overseas.

handydandy said:
Thanks for the info. A follow-up question: is it possible to flash it back to the stock unlocked firmware? The reason is that I'll need to use foreign SIM card when I travel overseas.
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Click to collapse
I have unlocked version on TMobile and wifi calling works just fine.

Do you have to flash the att firmware to the unlocked version in order to get VoLTE? I don’t care about WiFi calling, just hd calling and being able to stay on lte when making a call, rather than have it drop to HSPA during the call.

StolenVW said:
I flashed the AT&T firmware on my unlocked S9 and wifi calling and video calling worked.
With the stock firmware on the unlocked S9 nether option was there
Click to expand...
Click to collapse
Probably wont last. Unless att has an imei number from an wifi calling att phone on that account it will eventually go away.

Thor2j said:
Probably wont last. Unless att has an imei number from an wifi calling att phone on that account it will eventually go away.
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Click to collapse
I have unlocked S9 - I have wifi calling on tmobile and att. It's in the phone app settings. Not the device settings.

Wifi Calling
Here's a screenshot

sd_N said:
I have unlocked S9 - I have wifi calling on tmobile and att. It's in the phone app settings. Not the device settings.
Click to expand...
Click to collapse
I understand, but unless att has changed its policies in the last month, if u do not have an imei number on that account that is an att phone with wifi calling it will turn itself off as soon as your phone is interrogated by the network. Theres 100 threads on it , applies to unlocked s8, s7, etc...
Toggle is there because of firmware, not because it works.

Thor2j said:
I understand, but unless att has changed its policies in the last month, if u do not have an imei number on that account that is an att phone with wifi calling it will turn itself off as soon as your phone is interrogated by the network. Theres 100 threads on it , applies to unlocked s8, s7, etc...
Toggle is there because of firmware, not because it works.
Click to expand...
Click to collapse
That's the way it's supposed to work.

Any help/guidance for me??
I have tried a few times to use the March 2018 RB7 files with the ATT user data to get my phone to ATT stock - primarily for the Enhanced LTE (data and voice at the same time), as well as Wifi Calling. I can't get that version to load. I did get a more recent version to load (RK1) - and maybe that is the issue. Just wondering if there is a newer set of files and what specifically I should use (AP,BL... UserData) to get the phone fully set to AT&T. I now have the wifi calling option, just can't get it enabled. Any help is appreciated.

salevine said:
I have tried a few times to use the March 2018 RB7 files with the ATT user data to get my phone to ATT stock - primarily for the Enhanced LTE (data and voice at the same time), as well as Wifi Calling. I can't get that version to load. I did get a more recent version to load (RK1) - and maybe that is the issue. Just wondering if there is a newer set of files and what specifically I should use (AP,BL... UserData) to get the phone fully set to AT&T. I now have the wifi calling option, just can't get it enabled. Any help is appreciated.
Click to expand...
Click to collapse
When you try to enable it do any of the AT&T Wifi calling configuration screens pop up?

Unlocked Note 10+ on TMobile ?

I got Note 10+ 256gb unlocked version from Samsung. Planning on using it on Tmobile. Do I need to do anything specific to make it more compatible with Tmobile. I've currently unlocked s10e on Tmobile and overall network coverage seems bit subpar compared to Galaxy S8 that I purchased from Tmobile.
So I'm just curious if I need to do anything for Note 10+ ince I get it, to make it more network friendly.
Sent from my SM-G970U1 using Tapatalk

Download the tmobile firmware from sam mobile and odin it to your unlocked.

I googled it but didn't have luck. Any chance there is a link to the T-Mobile firmware?

stu5797 said:
I googled it but didn't have luck. Any chance there is a link to the T-Mobile firmware?
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Click to collapse
It's not up on Sammobile yet...
But it is on samfrew
https://samfrew.com/download/Galaxy__Note10+__256GB__/c3pb/TMB/N975USQU1ASGO/N975UOYN1ASGO/

What about for the 512 version unlocked? Can use same as 256 unlocked?
And is it recommended to flash the firmware (T-Mobile in my case too) right out of the box or do you have to put your old sim in from your previous phone first, then setup your gmail acct and let the sim reach the T-Mobile network?
Never had unlocked phones so this will be a first, hence the questions...

I just flashed my Note 10+ with TMB fimware and it all went fine. here is the link from Sammobile https://www.sammobile.com/samsung/galaxy-note-10-plus/firmware/SM-N975U/

marctronixx said:
What about for the 512 version unlocked? Can use same as 256 unlocked?
And is it recommended to flash the firmware (T-Mobile in my case too) right out of the box or do you have to put your old sim in from your previous phone first, then setup your gmail acct and let the sim reach the T-Mobile network?
Never had unlocked phones so this will be a first, hence the questions...
Click to expand...
Click to collapse
It doesn't really matter. The storage size doesn't affect the firmware. It's all the same.
Flashing the carrier firmware will factory reset your device, so I wouldn't waste time setting it up first. Just put your SIM in and let it provision for T-Mobile. It happens automatically so there's nothing you have to do. Then flash the firmware with ODIN.
Just research and make sure you know what you're doing before flashing. ODIN is fairly fool proof, but it's still best to know what you're doing first.

Add each file to it's respective field in Odin v3.13.3. Use CSC_*** if you want to do a clean flash or HOME_CSC_*** if you want to keep your apps and data.
I thought you can flash without messing with your data.

stu5797 said:
Add each file to it's respective field in Odin v3.13.3. Use CSC_*** if you want to do a clean flash or HOME_CSC_*** if you want to keep your apps and data.
I thought you can flash without messing with your data.
Click to expand...
Click to collapse
Technically you can flash without messing data but will be difficult to identify the reasons if you encounter any issues after that. So its better to flash it now itself when its freshly out of the box

I was going to update the Unlocked firmware via OTA software update. Once I receive the update I will then flash the Tmobile firmware via Odin

marctronixx said:
What about for the 512 version unlocked? Can use same as 256 unlocked?
And is it recommended to flash the firmware (T-Mobile in my case too) right out of the box or do you have to put your old sim in from your previous phone first, then setup your gmail acct and let the sim reach the T-Mobile network?
Never had unlocked phones so this will be a first, hence the questions...
Click to expand...
Click to collapse
Just received my unlocked Note10+ 512GB an hour ago and, as was the case with my unlocked Note9, it works great out of the box with T-Mobile and Mint (a discount reseller). No custom flashes needed unless you want the TMO bloatware. I would leave it as-is and just download the respective carrier apps individually. Love this BEAST so far! :good:

I bought the note 10+ and i'm on the tmobile network. The only issue I'm having is VOLTE. To my knowledge VOLTE should work. Can anyone confirm this?

Flashing Verizon firmware to unlocked T-Mobile Note 10+ SM-n975u

Has anyone had success with installing carrier firmware on an unlocked phone from a different carrier? I am able to flash XAA (unlocked) software to the phone but haven't had success with verizon software. After installing the unlocked software, I lose the original T-mobile screen when powering on along with all the bloatware. However, if I try to flash verizon firmware onto it, it reverts back to T-mobile screen, bloatware etc.
I've tried the following:
TMB-->VZW (fail, stays TMB)
TMB-->XAA (success, even changes phone info to SM-n975u1)
TMB-->XAA-->VZW (fail, reverts to TMB)
VZW software used was for SM-n975u as that was what people had success with when I looked through forums.
I'm going to leave it with unlocked firmware for now but would appreciate any tips with flashing verizon firmware. I'd like to get all the verizon features if possible.

Are you trying to use you T-Mobile SIM card with it as Verizon? If so, newer firmwares will prohibit that due to the SIM detect function.

Thanks for the response. No, I'm using my Verizon sim card. The call, text, web actually work fine. I was just hoping to get functions like Verizon Voicemail, call filter etc.

Did you boot your phone with the VZW SIM after flashing XAA? You have to do this before flashing the VZW firmware. That's worked for me when I went from ATT --> XAA + boot with VZW SIM --> VZW
Sent from my SM-N975U using Tapatalk

No I havent tried that yet! Will attempt it when I get home from work and update the post. Thanks guys!

I flashed xaa and put in my vzw sim, restarted the phone and then tried to flash vzw. Unfortunately that did not work. Still comes up Tmobile.

I'm trying to get my unlocked att Note10+ to Verizon. I hope flashing will get this to work

As of now, I think just using the unlocked xaa firmware is your best option. Download the xaa firmware using samfirm or sammobile and flash it with Odin. It seems to be working fine for me currently. I cant get all Verizon functions like Verizon Voicemail but I haven't noticed many other issues.

ferzmedina said:
Did you boot your phone with the VZW SIM after flashing XAA? You have to do this before flashing the VZW firmware. That's worked for me when I went from ATT --> XAA + boot with VZW SIM --> VZW
Sent from my SM-N975U using Tapatalk
Click to expand...
Click to collapse
I tried this and it's working fully. WiFi calling. Visual voicemail and Verizon boot animation and Verizon apps
Att note 10 to XAA to verizon

Whatisveal said:
As of now, I think just using the unlocked xaa firmware is your best option. Download the xaa firmware using samfirm or sammobile and flash it with Odin. It seems to be working fine for me currently. I cant get all Verizon functions like Verizon Voicemail but I haven't noticed many other issues.
Click to expand...
Click to collapse
Are you flashing the Verizon Userdata as well in Odin?

do anyone have stock firmware for SM-N975U trying to remove the frp on it it a verizon version dont care about erasing the data on it

Out of curiousity why did you want to got to verizon? I have found a software issue with the n976V firmware that locks out verizon MVNO sims. Seems to bypass the sim data per my carrier.
Was looking to go the other way.

Possible to change n975ui to n975u?

I flashed att firmware on an unlocked note 10 plus but att still sees it as an unlocked phone. Is it possible to change the phone to completey read as an attvbranded model? I called to see if they could provision the IMEI of my phone and they were able to tell right away it was not one of theirs, even though it was running att firmware.

Nikkic87 said:
I flashed att firmware on an unlocked note 10 plus but att still sees it as an unlocked phone. Is it possible to change the phone to completey read as an attvbranded model? I called to see if they could provision the IMEI of my phone and they were able to tell right away it was not one of theirs, even though it was running att firmware.
Click to expand...
Click to collapse
No, because (as you found out) the IMEI number is not from an AT&T branded phone.

Nikkic87 said:
I flashed att firmware on an unlocked note 10 plus but att still sees it as an unlocked phone. Is it possible to change the phone to completey read as an attvbranded model? I called to see if they could provision the IMEI of my phone and they were able to tell right away it was not one of theirs, even though it was running att firmware.
Click to expand...
Click to collapse
I have a GOOGLE unlocked phone. I flashed N975U firmware on my phone and also flashed ATT USER DATA at the same time.. When my phone booted up - it had all of the ATT BLOAT that comes on an Att phone - it booted up with the ATT LOGO - it shows ATT ICONS in the Status Bar for Data (5GE instead of showing LTE or 4G) and I have Wifi Calling and Video Calling working on my phone...
https://androidfilehost.com/?w=files&flid=301224
That is all it took. I didn't have to call ATT - It all just worked - and it was not working that way BEFORE I flased Userdata.
YMMV but I have heard about others who had the same experience. Go tot he N975U Firmware thread and find the download for ATT USERDATA - That is where I found it....
Hope that helps you.....

Pixel and iPhones are supposedly able to do those things. I think that may be why it worked for you
Geekser said:
I have a GOOGLE unlocked phone. I flashed N975U firmware on my phone and also flashed ATT USER DATA at the same time.. When my phone booted up - it had all of the ATT BLOAT that comes on an Att phone - it booted up with the ATT LOGO - it shows ATT ICONS in the Status Bar for Data (5GE instead of showing LTE or 4G) and I have Wifi Calling and Video Calling working on my phone...
https://androidfilehost.com/?w=files&flid=301224
That is all it took. I didn't have to call ATT - It all just worked - and it was not working that way BEFORE I flased Userdata.
YMMV but I have heard about others who had the same experience. Go tot he N975U Firmware thread and find the download for ATT USERDATA - That is where I found it....
Hope that helps you.....
Click to expand...
Click to collapse

Do you know of any way to get them to recognize the IMEI as one of theirs?
scottusa2008 said:
No, because (as you found out) the IMEI number is not from an AT&T branded phone.
Click to expand...
Click to collapse

Nikkic87 said:
Do you know of any way to get them to recognize the IMEI as one of theirs?
Click to expand...
Click to collapse
Wish it was possible, but unfortunately no way exists.

If you have WiFi Callling, Video Calling and Volte working, why does it matter if ATT recognizes your phone as one of theirs or not? Just curious about what you are trying to accomplish ?