Develop Bugs

SIM Unlocking Sprint L520 using S4 Modem

I am attempting to SIM unlock my L520 that's running MK1 baseband. I am not able to find older modems to flash onto my phone in-order for me to sim-unlock it. Would it work for me to flash a Sprint GS4 modem onto my GS4 mini instead? Any ideas?

masterm584 said:
I am attempting to SIM unlock my L520 that's running MK1 baseband. I am not able to find older modems to flash onto my phone in-order for me to sim-unlock it. Would it work for me to flash a Sprint GS4 modem onto my GS4 mini instead? Any ideas?
Click to expand...
Click to collapse
Were you able to do so?
also may i have a copy of your baseband.. mine is on mk2 and i have been trying to downgrade it to mk1 or the previous one.

i think don't work , i did try flash file modem of S4 L720 but fail ! my ideal must downgare OS 4.1.2 ...

masterm584 said:
I am attempting to SIM unlock my L520 that's running MK1 baseband. I am not able to find older modems to flash onto my phone in-order for me to sim-unlock it. Would it work for me to flash a Sprint GS4 modem onto my GS4 mini instead? Any ideas?
Click to expand...
Click to collapse
Hi, im trying the same thing, but i have NJ1 baseband, any idea of unlocking this device?, i tried with SSU.APK but my device does not have the option for GSM/UMTS, i think a downgrade its necessary.

rodorodo09 said:
Hi, im trying the same thing, but i have NJ1 baseband, any idea of unlocking this device?, i tried with SSU.APK but my device does not have the option for GSM/UMTS, i think a downgrade its necessary.
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Click to collapse
Could you unlock this phone (L520)?

edj809 said:
Could you unlock this phone (L520)?
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Click to collapse
Hello,nope, perhaps this device cannot be unlocked with this procedure. S4 mini is not supported for SSU.APK. I have successfully unlocked and rooted, S5 G900P, Mega L600 and S4 L720 and L720T, (L720T gets 3g and L720 Gets edge speed).

rodorodo09 said:
Hello,nope, perhaps this device cannot be unlocked with this procedure. S4 mini is not supported for SSU.APK. I have successfully unlocked and rooted, S5 G900P, Mega L600 and S4 L720 and L720T, (L720T gets 3g and L720 Gets edge speed).
Click to expand...
Click to collapse
can you explain me as I unlock please?

Noone can help us.

xx

[Q] AT&T to T-MOBILE FLash ROM

Hi everyone,
Is there a way to flash the AT&T or any other Stock ROM to a T-mobile phone ?.
I'v tried ODIN (version 3.7, 3.8, 3.9 and 3.10) .and I can´t manage to get it flashed.
Tried by TWRP too, and it says thet the zip isnt good.
Thanks in advance.

Not directly, no.

dc/dc said:
Not directly, no.
Click to expand...
Click to collapse
You mean inderictly is it posible? (dont know how is inderectly ).

Yes, but it requires a seasoned developer to make the modifications necessary. I'm not sure why you'd want to do this though as the AT&T version is far more bloated.

dc/dc said:
Yes, but it requires a seasoned developer to make the modifications necessary. I'm not sure why you'd want to do this though as the AT&T version is far more bloated.
Click to expand...
Click to collapse
Thanks for your reply.
I absolutely have no that kind of skill.
Anyway, the real reason I came up with that idea is because I cant unlock my T-mobile phone, and I live outside the US.
I've heard and read that sim unlocks by code are having problems.

Unfortunately, flashing firmware will not aid you in unlocking. Have you already tried buying a code for your device?

dc/dc said:
Unfortunately, flashing firmware will not aid you in unlocking. Have you already tried buying a code for your device?
Click to expand...
Click to collapse
He said flashing a rom not firmware. Someone over in the s6 forums flashed a metro pcs rom and was able to unlock the tmobile s6.

dnkeyhnter said:
He said flashing a rom not firmware. Someone over in the s6 forums flashed a metro pcs rom and was able to unlock the tmobile s6.
Click to expand...
Click to collapse
ROM = Firmware. They're interchangeable terms. Also MetroPCS is owned by T-Mobile, so I don't see your point. Flashing software does not unlock the SIM card slot.

dc/dc said:
ROM = Firmware. They're interchangeable terms. Also MetroPCS is owned by T-Mobile, so I don't see your point. Flashing software does not unlock the SIM card slot.
Click to expand...
Click to collapse
My appologies, coming from HTC m8...
http://venomroms.com/rom-vs-firmware/

themrmind said:
Hi everyone,
Is there a way to flash the AT&T or any other Stock ROM to a T-mobile phone ?.
I'v tried ODIN (version 3.7, 3.8, 3.9 and 3.10) .and I can´t manage to get it flashed.
Tried by TWRP too, and it says thet the zip isnt good.
Thanks in advance.
Click to expand...
Click to collapse
yes you can flash metro pcs firmware via odin and unlock by code

noobsaibot34 said:
yes you can flash metro pcs firmware via odin and unlock by code
Click to expand...
Click to collapse
There is no MetroPCS firmware for the S6 Edge as they do not sell it.

my bad this works only on s6...didn't realize you had an Edge

Im living outside of usa .
I have flashed my t mobile s6 using metropcs and unlocked my s6 using a code purchased online.
I reflashed my t mobile software and its still unlocked.
Can i update to stock 5.1.1 using odin and have the device still unlocked .
Once phone unlock is done using a code is it a permanent unlock ?

younussm said:
Im living outside of usa .
I have flashed my t mobile s6 using metropcs and unlocked my s6 using a code purchased online.
I reflashed my t mobile software and its still unlocked.
Can i update to stock 5.1.1 using odin and have the device still unlocked .
Once phone unlock is done using a code is it a permanent unlock ?
Click to expand...
Click to collapse
which code did you ask for to unlock the sim, metroPCs(sm-g920T1) or T-mobile(sm-g920T)??, I asked for metroPCs(sm-g920T1) code and unlocked my T-mobile phone
did you updated to 5.1.1?? which T-mobile(5.1.1) or metroPCs(5.1.1) ?? did sim kept unlocked??
thank you

datrico89 said:
which code did you ask for to unlock the sim, metroPCs(sm-g920T1) or T-mobile(sm-g920T)??, I asked for metroPCs(sm-g920T1) code and unlocked my T-mobile phone
did you updated to 5.1.1?? which T-mobile(5.1.1) or metroPCs(5.1.1) ?? did sim kept unlocked??
thank you
Click to expand...
Click to collapse
Hello
I have a samsung s6 t mobile version .
Flashed the metro pcs to unlock the phone and reflashed the t mobile firmware .its still unlocked and at 5.0.1 .
Im still looking for answers if i upgrade my s6 to 5.1.1 will my phone will be unlocked .if you find any , do let me know .
Sent from samsung s6

younussm said:
Hello
I have a samsung s6 t mobile version .
Flashed the metro pcs to unlock the phone and reflashed the t mobile firmware .its still unlocked and at 5.0.1 .
Im still looking for answers if i upgrade my s6 to 5.1.1 will my phone will be unlocked .if you find any , do let me know .
Sent from samsung s6
Click to expand...
Click to collapse
Your phone was unlocked by code. It is permanent. It is not rom dependant. Just like you flashed a different rom than the metro pcs when you originally unlocked your phone, you can upgrade too.

Flash unbranded rom
I have an unlocked G920T (came locked from amazon, but unlocked easily via device unlock app preloaded)
Is there an unbranded firmware I can flash, even if its from a different variant?

Im also interested to know if i can flash a at&t firmware on my tmobile s6. Not for unlock but because the person i gave it to wants to use the ohone on at&t and feel like its an at&t phone. Whatever right? But can i do that? Or would it have to be a custom rom? Orignal firmware would be nice.

I need some help to downgrade?

Sorry if its been asked, answered and in the wrong spot but I'm on fob6 5.0 and I want to downgrade to 4.4.2 so I can flash darthstaker. Can I do this? And if so can someone send me a link to a,mediafire or dropbox for the 4.4.2 Odin firmware files please?

this.guy.lol said:
Sorry if its been asked, answered and in the wrong spot but I'm on fob6 5.0 and I want to downgrade to 4.4.2 so I can flash darthstaker. Can I do this? And if so can someone send me a link to a,mediafire or dropbox for the 4.4.2 Odin firmware files please?
Click to expand...
Click to collapse
You should probably ask in the questions section. You can find official firmware in sammobile or updato (Google search)

Does the custom ROM need a kk bootloader and modem?

audit13 said:
Does the custom ROM need a kk bootloader and modem?
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Click to collapse
Yea it does. I also need to downgrade to sum unlock since tmo is screwing me around.

Downgrading will allow network unlocking using a free method?
As far as I recall, there is no way to force a bootloader downgrade from mm to kk.

audit13 said:
Downgrading will allow network unlocking using a free method?
As far as I recall, there is no way to force a bootloader downgrade from mm to kk.
Click to expand...
Click to collapse
I'm not on MM I'm on LP 5.0.2

My mistake, I meant to say LP, not mm as I know the note 3 never received mm from Samsung.

audit13 said:
My mistake, I meant to say LP, not mm as I know the note 3 never received mm from Samsung.
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Click to collapse
How do I network unlock then? Do I need just the baseband or how do I go about it? Tmo is lying and jacking me around and I'm poor n can't afford a unlock that costs

Flashing different bootloaders or modems will not sim unlock the phone. The cheapest method I know of to unlock would be to buy an unlock code via eBay.

audit13 said:
Flashing different bootloaders or modems will not sim unlock the phone. The cheapest method I know of to unlock would be to buy an unlock code via eBay.
Click to expand...
Click to collapse
What I'm asking is can I flash the baseband for 4.4.2 and do the service menu unlock as I would if on stock 4.4.2?

I have never heard of a service menu unlock method for the note 3. Do you have a link?

audit13 said:
I have never heard of a service menu unlock method for the note 3. Do you have a link?
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Click to collapse
That's my plan for the unlock is the service menu unlock. Can you please get me the KK modem/baseband to perform it please? Or a working link to the modems foe n900t for kk?

Do you have a link to the service menu unlock method? I've never heard of one.
There was a service menu unlock method for the s3 and possibly the s4 but never heard of one for the note 3.
The stock kk modem would be found in the kk stock ROM which can be downloaded from Sammobile.com.
Before flashing anything, I would confirm that such an unlock method works. Playing around with the service menu can wreak havoc with a phone.

audit13 said:
Do you have a link to the service menu unlock method? I've never heard of one.
There was a service menu unlock method for the s3 and possibly the s4 but never heard of one for the note 3.
The stock kk modem would be found in the kk stock ROM which can be downloaded from Sammobile.com.
Before flashing anything, I would confirm that such an unlock method works. Playing around with the service menu can wreak havoc with a phone.
Click to expand...
Click to collapse
I can't use sammobile. I don't have the patience to sit n sign up for it plus out takes,ungodly time,to download anything lol. Would,you or anyone have the files needed on deck? Say Android host sites or a,Google drive maybe?

You could search the general threads for the files you need. Not sure if they are there, but the 4.4.2 service menu may need a 4.4.2 bootloader? If the phone had a 5.0 bootloader, you may not be able to downgrade the bootloader.
How do you use the service menu to network unlock?
I never had a T-Mobile note 3, only the Canadian note 3.

audit13 said:
You could search the general threads for the files you need. Not sure if they are there, but the 4.4.2 service menu may need a 4.4.2 bootloader? If the phone had a 5.0 bootloader, you may not be able to downgrade the bootloader.
How do you use the service menu to network unlock?
I never had a T-Mobile note 3, only the Canadian note 3.
Click to expand...
Click to collapse
*#0011# I'm guessing. I need the mj2 baseband or before and only the baseband. I have a s8 plus and a s5 but I needs this unlocked so I can resell for more

Are you aware of anyone who successfully unlocked using the service menu? If there was such a method, it probably would have been posted on XDA.

audit13 said:
Are you aware of anyone who successfully unlocked using the service menu? If there was such a method, it probably would have been posted on XDA.
Click to expand...
Click to collapse
I've only seen and done it myself on a Samsung S II (hercules) on stock firmware and read that it was available on other similar Samsung phones but I never tried it on the Note 3 as I thought Samsung eliminated that option (even though it was pretty hidden)

The option was also available for the s3 on 4.1.1 but it has never been done with any note 3 on any version of the stock ROM afaik.

Is "SM-N920T" Firmware ok, on a "SM-N920A" Phone ?

Hey guys, just had a question. I have a SM-N920A phone. Will it brick my phone if i flash it through ODIN with "N920TUVS5ERC1" thats meant for the SM-N920T Tmobile Note 5. I hate the AT&T bloatware and would like to have the Tmobile Version of the Note 5. Just not sure if the Tmobile Firmware will brick my AT&T phone. Will it work ?
Thanks guys

euserdb said:
Hey guys, just had a question. I have a SM-N920A phone. Will it brick my phone if i flash it through ODIN with "N920TUVS5ERC1" thats meant for the SM-N920T Tmobile Note 5. I hate the AT&T bloatware and would like to have the Tmobile Version of the Note 5. Just not sure if the Tmobile Firmware will brick my AT&T phone. Will it work ?
Thanks guys
Click to expand...
Click to collapse
It will not work. Locked bootloader for AT&T signed software. Maybe it will flash but virtually no chance it will boot. Even if it did boot, there most likely won't be any cell service.

Oh ok, i see. Yeah you problaly need the same basebands or something for the firmware to work. Well, thanks i appreciate it

If you did get it to boot, using an unlocked modem firmware would be the trick to getting cell service again.

Please, please, don't flame me if I bumped this as it's been inactive for a while... but I wanted to know if there was any progress with this?
I also have a Note 5 N920A that I'd basically like to make into a N920T. I understand that the bootloader is unlocked, but where keys exist, is there not a way to unlock it? I've been out of the development community for quite a while and will catch up a little but I hope someone would have time enough to explain a little.
I unlocked this phone and use it on T-mobile but it doesn't get service where the almost identical T-mobile version of the phone does...
What if I left the bootloader alone and just wanted to take full advantage of T-Mobile's LTE bands? Can I just flash an unlocked modem from _____?
What're the workaround options for this?
Please and thanks in advance

I've been searching for the answer to the same, if not similar, question. I'm trying to find a way or work-around to get T-mobile wifi calling to work.

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?