Develop Bugs

[Q] rooting phone?

ok before you say its in the wrong section hear me out. I got a s3 that is from tmobile but unlocked it to use on att. now to root it would i do it from the tmobile forums or the att forums? i just dont wanna screw it up.

95neon1025 said:
ok before you say its in the wrong section hear me out. I got a s3 that is from tmobile but unlocked it to use on att. now to root it would i do it from the tmobile forums or the att forums? i just dont wanna screw it up.
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I believe being that its unlocked, and you are running att software on it, you can root it with the att guides.
When you root you are not changing anything you are just pushing on CWM and SU not system files are being changed.. when you flash ROMs you may want to use the ATT roms because the data and system files being use to pull your service are for the ATT carrier and it might interfere with the sim card.

I don't think the above poster is right. If you bought it from T-Mobile, then it may need the T-Mobile software regardless of which network you are using it on. Someone with more experience may be able to attest either way, but I think I am correct in this. If I'm not, I'll learn something new!
EDIT: I think you need to use the T-Mobile ROM, but you could root it via ATT guides as long as you are using the proper ROM. (Like, don't use Mr. Robinson's ATT JB ROM to root you T-Mobile phone).

to play it safe, i would follow the T-Mobile guides and ROMs.
i have an AT&T version that is unlocked to work with T-Mobile, but i only use the AT&T related stuff.

mrhomiec said:
to play it safe, i would follow the T-Mobile guides and ROMs.
i have an AT&T version that is unlocked to work with T-Mobile, but i only use the AT&T related stuff.
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yea yours is just the opposite so if it works for u then it should work for me. i thank u guys i just wanted to make sure i wasnt going to f*ck it up

[Q] I need help unlocking my Spring Galaxy S4 mini SPH-L520

So, I'm a total beginner with regards to understanding how to mod your cell phone, but I am tech savvy. I've spent the last week of my life attempting to understand how to Sim unlock my Sprint Samsung Galaxy S4 mini Sph-L520 so that I would be able to use a prepaid Straight Talk wireless card with it. At first, I thought the process was going to be rather simple. I thought I could just buy a code online. Turns out that this phone isn't a GSM phone, so this type of unlocking isn't possible. I next heard as tip about getting my phone flashed, but apparently flashing is just installing another operating system on your phone. Though I could see how that might be able get around the Sim Unlock, if possible I would like to keep this stock OS. Also, I'm not certain if flashing my phone would automatically enable me to use another carrier. I then learned what rooting was. Though I now understand that I could simply use Kingo to root my phone, I don't know how that would allow me to use another carrier. So i've spent my last week or so understanding all this new terminology, but I still don't have a definitive answer. I really want to thank this board for existing because I've learned a tremendous amount just reading these threads. So if anyone could help me out here that would be great! :laugh:

Kittypoop2 said:
So, I'm a total beginner with regards to understanding how to mod your cell phone, but I am tech savvy. I've spent the last week of my life attempting to understand how to Sim unlock my Sprint Samsung Galaxy S4 mini Sph-L520 so that I would be able to use a prepaid Straight Talk wireless card with it. At first, I thought the process was going to be rather simple. I thought I could just buy a code online. Turns out that this phone isn't a GSM phone, so this type of unlocking isn't possible. I next heard as tip about getting my phone flashed, but apparently flashing is just installing another operating system on your phone. Though I could see how that might be able get around the Sim Unlock, if possible I would like to keep this stock OS. Also, I'm not certain if flashing my phone would automatically enable me to use another carrier. I then learned what rooting was. Though I now understand that I could simply use Kingo to root my phone, I don't know how that would allow me to use another carrier. So i've spent my last week or so understanding all this new terminology, but I still don't have a definitive answer. I really want to thank this board for existing because I've learned a tremendous amount just reading these threads. So if anyone could help me out here that would be great! :laugh:
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Click to collapse
Can anyone give me anykind of answer, please?

Are you in the USA, try to contact sprint for the unlock code ... 1-888-226-7212

luzer_gt said:
Are you in the USA, try to contact sprint for the unlock code ... 1-888-226-7212
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Click to collapse
I did contact sprint, they said that the phone wasn't stolen and that everything was okay. They then transferred me, but told me that they could only give me the msl code. Is that what I need? Would that carrier unlock my phone?

luzer_gt said:
Are you in the USA, try to contact sprint for the unlock code ... 1-888-226-7212
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Click to collapse
They told me that since my phone wasn't in the system, they couldn't give me the unlock code.

Kittypoop2 said:
They told me that since my phone wasn't in the system, they couldn't give me the unlock code.
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Click to collapse
Does the phone have a slot for a SIM card? If so you could try following this thread step by step. Not saying its going to work but its worth a shot. Its also going to depend on what version software your on. You could always pay $30.00 and get a code from CellUnlocker.
http://forum.xda-developers.com/showthread.php?t=2530610

Quickvic30 said:
Does the phone have a slot for a SIM card? If so you could try following this thread step by step.
http://forum.xda-developers.com/showthread.php?t=2530610
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Click to collapse
I'll attempt it, but the method described is for a regular Galaxy S4. My phone is an S4 mini, would there be any difference?

I attempted this method, and it didn't work. The phone would not let me flash that rom with odin. It failed every time.

Kittypoop2 said:
I attempted this method, and it didn't work. The phone would not let me flash that rom with odin. It failed every time.
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Click to collapse
All you have to flash is the modem but that will probably fail also since its not for the mini. You have to find a way to get into the service menu for the mini and then it would more than likely work.

Quickvic30 said:
All you have to flash is the modem but that will probably fail also since its not for the mini. You have to find a way to get into the service menu for the mini and then it would more than likely work.
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Click to collapse
Do you think it would work if we flashed a custom room almost like they did with the s4?

Taylorl4 said:
Do you think it would work if we flashed a custom room almost like they did with the s4?
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Its worth a try.

Nothing works
Quickvic30 said:
Its worth a try.
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Click to collapse
That's not working either. I have installed Cyanogenmod following:
http://forum.xda-developers.com/showthread.php?t=2669991
but no signal trying to cannot on GSM network.
I have also tried:
http://forum.xda-developers.com/showthread.php?t=2530610
but of course that didn't work too, and since Sprint unlock codes doesn't work either it looks like we are stuck
My baseband is L520VPUAMK1.
Any help would be highly appreciated,
Cheers!

Kittypoop2 said:
So, I'm a total beginner with regards to understanding how to mod your cell phone, but I am tech savvy. I've spent the last week of my life attempting to understand how to Sim unlock my Sprint Samsung Galaxy S4 mini Sph-L520 so that I would be able to use a prepaid Straight Talk wireless card with it. At first, I thought the process was going to be rather simple. I thought I could just buy a code online. Turns out that this phone isn't a GSM phone, so this type of unlocking isn't possible. I next heard as tip about getting my phone flashed, but apparently flashing is just installing another operating system on your phone. Though I could see how that might be able get around the Sim Unlock, if possible I would like to keep this stock OS. Also, I'm not certain if flashing my phone would automatically enable me to use another carrier. I then learned what rooting was. Though I now understand that I could simply use Kingo to root my phone, I don't know how that would allow me to use another carrier. So i've spent my last week or so understanding all this new terminology, but I still don't have a definitive answer. I really want to thank this board for existing because I've learned a tremendous amount just reading these threads. So if anyone could help me out here that would be great! :laugh:
Click to expand...
Click to collapse
Sprint L520 S4 mini is completely unlocked for use of any CDMA 1x/evdo/4G LTE services in the world. Carriers like Smartfren, Intertelekom, Reliance, Tata and MTS will work flawlessly on this phone. Only read its SPC code, make it RUIM only from DFS and insert any CDMA carrier's SIM

I olso bin interested next week I will get a Samsung s4 mini locked Drei (from Autria) I dont still know witch will be the firmware installed but I found a few links+ video (and I think they got something reading this forum I dont know rules if is ageinst then sorry and remove it,I will post a video from youtube I think taht is very clear (also written another way to get in service menu) this is link http://www.youtube.com/watch?v=bl8y8D6ECCA I ripit not sure if that works but if u reade somebody posted another way to entr service not evan sure if that work olso with the mini version (i hope so olso for me :victory: ) but if the handy are similar maybe yes the only problem can be the firmare version (and taht is olso my problem i cant fine any downgrade firmware for Drei brand s 4 mini,olso if I unlock it sure I will louse warrenty.
Let me know if the link was usefull for u
Take care
Helen

galaxy s4 mini sph-L520
hello
How to convert galaxy s4 mini sph-L520 in gsm for France?
kind regards

International/domestic sim unlock
The GSM portion of the s4 mini can be unlocked .I'm more than sure of it because I have a friend who has his own method .Look up randy unlocks on ebay.He can do it remotely and will call you on the phone and it only takes thirty minutes. I've unlocked plenty of regular Sprint s4's myself ,that process is very easy.The s4 mini would be too if you could find the modems anywhere.He has never told me how he does it but get ahold of him.

Can anyone help me ? Can you back up your radio.img from your unlock phone and send to me ?

Kittypoop2 said:
So, I'm a total beginner with regards to understanding how to mod your cell phone, but I am tech savvy. I've spent the last week of my life attempting to understand how to Sim unlock my Sprint Samsung Galaxy S4 mini Sph-L520 so that I would be able to use a prepaid Straight Talk wireless card with it. At first, I thought the process was going to be rather simple. I thought I could just buy a code online. Turns out that this phone isn't a GSM phone, so this type of unlocking isn't possible. I next heard as tip about getting my phone flashed, but apparently flashing is just installing another operating system on your phone. Though I could see how that might be able get around the Sim Unlock, if possible I would like to keep this stock OS. Also, I'm not certain if flashing my phone would automatically enable me to use another carrier. I then learned what rooting was. Though I now understand that I could simply use Kingo to root my phone, I don't know how that would allow me to use another carrier. So i've spent my last week or so understanding all this new terminology, but I still don't have a definitive answer. I really want to thank this board for existing because I've learned a tremendous amount just reading these threads. So if anyone could help me out here that would be great! :laugh:
Click to expand...
Click to collapse
Did you try this solution? Give it a try a let me know if it works.
http://forum.xda-developers.com/spr...print-samsung-unlocker-unlock-sprint-t2928250

Try cphoneunlocker.comi got my galaxy s4 unlocked for free!

sph-l520 CDMA-LTE ONLY
Dear friends this phone is only CDMA/LTE you can easily unlock the phone using ssu.apk or z3x box, but it will only work with lte sim card from a different provider.
you can verify this at phonescoop.com.
administrator please close this thread.

Another carrier's rom on Sprint Note 4

Ive done a lot of reading in regards to this. almost every place I read says other roms should flash on device not of those carriers. reason im investigating this is because CM for sprint has all the sms issues. and after reading through all the tmo roms im not seeing anyone mention sms issues. every time I try to flash another carriers rom it reads that they are carrier specific and fail. is there a way I can make another carriers rom flash to sprint. my device is unlocked, though im using a sprint sim for lte and from what im reading also, its just a matter of an apn setting for sprint, and/or a radio flash for sprint. anyways, comments?

mikexmayhem said:
Ive done a lot of reading in regards to this. almost every place I read says other roms should flash on device not of those carriers. reason im investigating this is because CM for sprint has all the sms issues. and after reading through all the tmo roms im not seeing anyone mention sms issues. every time I try to flash another carriers rom it reads that they are carrier specific and fail. is there a way I can make another carriers rom flash to sprint. my device is unlocked, though im using a sprint sim for lte and from what im reading also, its just a matter of an apn setting for sprint, and/or a radio flash for sprint. anyways, comments?
Click to expand...
Click to collapse
I wouldn't flash another carriers roms. it can make your phone brick and just a paper weight. other carriers have different settings and files that our phone doesn't..i don't know how to explain it better but I don't recommend it

mikexmayhem said:
Ive done a lot of reading in regards to this. almost every place I read says other roms should flash on device not of those carriers. reason im investigating this is because CM for sprint has all the sms issues. and after reading through all the tmo roms im not seeing anyone mention sms issues. every time I try to flash another carriers rom it reads that they are carrier specific and fail. is there a way I can make another carriers rom flash to sprint. my device is unlocked, though im using a sprint sim for lte and from what im reading also, its just a matter of an apn setting for sprint, and/or a radio flash for sprint. anyways, comments?
Click to expand...
Click to collapse
That is kind of unfortunate if that's the case that SMS doesn't work right out of the gate on Sprint CM ROM's then. While I have gotten used to it, it does get annoying after a while having to reconfigure using the *#*#4636#*#* method every time.
I have tried to flash a few other carrier based ROMs via TWRP but they typically fail anyways (which is probably a good thing). I don't think I've ever actually successfully flashed another carrier based ROM through TWRP.

rooted sprint note 4 malfunctioning need to get it on t mobile
hey all im new to this, so please excuse any nistakes or assumptions i make. i have a now rooted note 4 sm-910p. i neeed to have it either unlocked or set for t mobile. my friend said to get a Tmobile ROM. where would i find one and how do i get around my passsword screen. it time out before i can get it unlocked or the kwyboard lags and freezies

Sandman1129 said:
hey all im new to this, so please excuse any nistakes or assumptions i make. i have a now rooted note 4 sm-910p. i neeed to have it either unlocked or set for t mobile. my friend said to get a Tmobile ROM. where would i find one and how do i get around my passsword screen. it time out before i can get it unlocked or the kwyboard lags and freezies
Click to expand...
Click to collapse
You can't just flash a tmobile rom on this device. It sounds like to me you need to get your phone unlocked to use tmobile sim. I would suggest http://www.idoneapps.com to sim unlock your phone.
I have no idea what you mean by password screen. What firmware are you on? How did you root your phone? Did you turn off reactivation lock?
I can try to help you but i need to know more detail of your problem. And do understand I'm limited on time i spend here. I'll check back when i can.

http://forum.xda-developers.com/note-4-sprint/development/steps-to-install-dr-ketans-rom-g-t3379659 This will help u install N910G roms.. i tried. M6 version of Ketan rom. Working food, but am not on sprint.

Why do I need Verizon radio to use US unlocked phone on Verizon?

I believe that anyone that bought a US unlocked phone directly from HTC was/is able to use it with Verizon out of the box, correct?
If so, why do I need/want to flash the Verizon radio to get a working phone after converting to the US unlocked version from the Verizon version I purchased?
I assume "normal" people that bought the unlocked phone are not flashing the Verizon radio.
Posted from my phone, forgive any spelling errors.

GSM vs CDMA?

JustinChase said:
I believe that anyone that bought a US unlocked phone directly from HTC was/is able to use it with Verizon out of the box, correct?
If so, why do I need/want to flash the Verizon radio to get a working phone after converting to the US unlocked version from the Verizon version I purchased?
I assume "normal" people that bought the unlocked phone are not flashing the Verizon radio.
Posted from my phone, forgive any spelling errors.
Click to expand...
Click to collapse
The unlocked HTC 10 doesn't support Verizon, it never has.
In order to use it on Verizon, people have always flashed the Verizon radio or firmware (which includes the radio). I don't know why HTC did it like this, but that's the way it is.
Sources:
HTC site saying what carriers the dev/unlocked HTC 10 supports.
Verizon is not listed.
The (possibly original) thread on the topic.
tl;dr for us lazy folk: No, it's ALWAYS been like that. The dev/unlocked HTC 10 has never supported Verizon and has never worked properly with Verizon out of the box.

Ariac Konrel said:
The unlocked HTC 10 doesn't support Verizon, it never has.
In order to use it on Verizon, people have always flashed the Verizon radio or firmware (which includes the radio). I don't know why HTC did it like this, but that's the way it is.
Sources:
HTC site saying what carriers the dev/unlocked HTC 10 supports.
Verizon is not listed.
The (possibly original) thread on the topic.
tl;dr for us lazy folk: No, it's ALWAYS been like that. The dev/unlocked HTC 10 has never supported Verizon and has never worked properly with Verizon out of the box.
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Ah, that's why. Weird they did it that way, but at least I understand now. Thanks.
Hoping for nougat VZW firmware soon [emoji39]
Posted from my phone, forgive any spelling errors.

JustinChase said:
Ah, that's why. Weird they did it that way, but at least I understand now. Thanks.
Hoping for nougat VZW firmware soon [emoji39]
Posted from my phone, forgive any spelling errors.
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Click to collapse
Ehhh, same to me.
If you don't need WiFi calling, VoLTE or whatever go for any of the custom ROMs if you are into that.
I recommend Viper10.

Thanks. I'm currently running leedroid, but will try viper10. I've read he has advanced calling working already. Either way, I'll check it out.
Posted from my phone, forgive any spelling errors.

JustinChase said:
Thanks. I'm currently running leedroid, but will try viper10. I've read he has advanced calling working already. Either way, I'll check it out.
Posted from my phone, forgive any spelling errors.
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Click to collapse
He does and I can see it.
The video option is grayed out, but it is also not on my plan so that might not be the ROMs fault.
HD voice is operational.

Help with att firmware on unlocked

My insurance has sent me me a brand new unlocked note 10 plus when I am on att. I'd like to flash to att firmware to regain some functionality . I do have a provisioned att sim and IMEI. If someone can walk me through it and answer my questions I would love to tip you or donate to xda, whichever is preferred. I tried searching but there is a lot of info to wad through and I want to make sure I'm on the latest version as well.
In addition to how to do this, I was wondering how do future updates work? Would those have to be manual as well?

Nikkic87 said:
My insurance has sent me me a brand new unlocked note 10 plus when I am on att. I'd like to flash to att firmware to regain some functionality . I do have a provisioned att sim and IMEI. If someone can walk me through it and answer my questions I would love to tip you or donate to xda, whichever is preferred. I tried searching but there is a lot of info to wad through and I want to make sure I'm on the latest version as well.
In addition to how to do this, I was wondering how do future updates work? Would those have to be manual as well?
Click to expand...
Click to collapse
You have a few different threads on this, it would be helpful to keep your posts on this in one thread.
The way to use Odin and flash firmware is the same as the link below. The only difference is the firmware you will be using (for that you will need to look for the correct one, but your getting help on that in another thread I saw).
https://forum.xda-developers.com/showpost.php?p=80074891&postcount=1
And when adding files to the correct spots it's not that hard really. When you download the firmware and extract it you will find individual files that start with letters like "AP" "BL" "CP" "CSC"... you just put those in the correct spots in odin. Just be sure to do a factory data reset before and after flashing the firmware. Doing the FDR before will remove the FRP lock. Doing the FDR after will ensure that things run smoothly and that you will be able to download OTA updates.
The appdata will be the harder one to find, you may need to ask if someone can post that here on the forum.
But let me ask... Is this because you don't have things like VoLTE, WiFi calling, etc? If this is the case then this won't work. AT&T uses an IMEI whitelist that allows only phones that they have sold to be provisioned for those features. Unless your phone is one that is on that whitelist then you will not be able to get those features.
Some people have tried using an old AT&T phone, activating it and then swapping the sim (or something similar)... But this doesn't always work or it doesn't work for very long. I have spent a lot of time on the phone with AT&T over this subject, and they won't budge one bit.