Develop Bugs

Flashing new radio on unlocked phone

Hello, my T-mobile SGS3 is (factory) unlocked and I use it with another entirely different carrier.
Is it safe to flash the new UGLV1 radio??
Thanks

Very doubtful!
There are a number of people that had problems when flashing radios on other carriers. Particularly with the T999V.
What carrier are you with? What is your phone model? And what is its current baseband?
Sent from my SGH-T999 using xda app-developers app

DocHoliday77 said:
Very doubtful!
There are a number of people that had problems when flashing radios on other carriers. Particularly with the T999V.
What carrier are you with? What is your phone model? And what is its current baseband?
Sent from my SGH-T999 using xda app-developers app
Click to expand...
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I think it is still a SGH-T999. The baseband is T999UVLEM

You msy be able to use the other radios then. Depends on your carrier. UVLEM works so others should as well.
If not you can always flash back to original.
Sent from my SGH-T999 using xda app-developers app

Hi,
Are u talking about fm radio? Does galaxy s3 support it?
It would be really cool to have an fm radio which would not require an internet...

dan_nny said:
Hi,
Are u talking about fm radio? Does galaxy s3 support it?
It would be really cool to have an fm radio which would not require an internet...
Click to expand...
Click to collapse
LTE S3s have no FM.
Sent from my Nexus 7 using xda premium

Oh, that's really sucks
Sent from my SGH-T999 using xda app-developers app

DocHoliday77 said:
You msy be able to use the other radios then. Depends on your carrier. UVLEM works so others should as well.
If not you can always flash back to original.
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
I live in Brazil and my carrier is Vivo. I bought the phone from Amazon while I was in the US and it came unlocked.
I am very afraid to flash the new radio... Isn't my UVLEM modified to be unlocked? If not, what is modified, then? What is different in my phone from other SGH-T999s that makes it unlocked?

gberger42 said:
I live in Brazil and my carrier is Vivo. I bought the phone from Amazon while I was in the US and it came unlocked.
I am very afraid to flash the new radio... Isn't my UVLEM modified to be unlocked? If not, what is modified, then? What is different in my phone from other SGH-T999s that makes it unlocked?
Click to expand...
Click to collapse
Flashing a radio will not re-lock your device. Stick to radios that have T999 in their name - the others won't work and could potentially brick your device.

Thanks for the help, flashed with no problems.

Check out the modem flasher tool on the dev section. Makes it very easy to test and find the best radio for your phone and area.
Sent from my SGH-T999 using xda app-developers app

[Q] Flash GPE RUU & Keep Service

Since my JavaCard should be here in the next few days, I was wondering. Since the GPE One supports most of the bands the VZW One uzes , would flashing the GPE RUU (radios and all) keep me from using cellular data etc?
Sent from my HTC6500LVW using xda app-developers app

It would cool if it worked. If it was mine, I would be worried that if it didn't work, there is no stock RUU to flash. You would basically be forced to get a replacement. I would hold off until there is a stock RUU available.
Sent from my phone using an app

Sonic2756 said:
Since my JavaCard should be here in the next few days, I was wondering. Since the GPE One supports most of the bands the VZW One uzes , would flashing the GPE RUU (radios and all) keep me from using cellular data etc?
Sent from my HTC6500LVW using xda app-developers app
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Click to collapse
NO this will not work. It is GSM, bands dont exactly matter here.

The GPE HTC One supports the GSM versions of those particular frequency bands, NOT the CDMA ones. I know it sounds absurd, considering they're the same frequency but when you're dealing with different protocols between GSM & CDMA you don't want to potentially ruin your phone or put yourself in a place where your phone will be hard to recover.

Flashing different carrier's roms

Hey guys, since T-Mobile has unlocked bootloader, are you guys able to flash other carriers roms like at&t?
I'm only asking because im on an AT&T model, but eventually want to flash T-Mobile roms once our bootloader is unlocked for wifi calling.

cuongfucius said:
Hey guys, since T-Mobile has unlocked bootloader, are you guys able to flash other carriers roms like at&t?
I'm only asking because im on an AT&T model, but eventually want to flash T-Mobile roms once our bootloader is unlocked for wifi calling.
Click to expand...
Click to collapse
It would require some tweaking, but in the base idea, yes, they're all the same (with different radios and likely different kernels). You'll want to just wait a little bit and have devs port to the other models. However, your goal of getting wifi calling likely won't work. Maybe I've been out of the loop, but last I checked the app registers your phone number with the T-Mobile network so it knows where to forward calls/texts to. So it more than likely won't work for AT&T/Verizon. I believe Sprint has it now, but same method.

TheJesus said:
It would require some tweaking, but in the base idea, yes, they're all the same (with different radios and likely different kernels). You'll want to just wait a little bit and have devs port to the other models. However, your goal of getting wifi calling likely won't work. Maybe I've been out of the loop, but last I checked the app registers your phone number with the T-Mobile network so it knows where to forward calls/texts to. So it more than likely won't work for AT&T/Verizon. I believe Sprint has it now, but same method.
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hi sorry, i left out a big important detail. I'm on t-mobile lol. so it would work for me. This is my first lg phone, and i've been on many other phones where we can easily cross flash carriers without the need of porting the roms. I was under the impression that the at&t model was slightly different? i should revisit that again just to be sure.
I was hoping if there was any hard evidence or experience that someone did flash an at&t rom without any hiccups. That'll mean we can do it vice versa.
Thanks for the info.

On other phones this has been possible, I would wait for a definite answer, or make sure you have a backup ready just in case you do try it...

I am on Verizon and I was also wondering if I can flash a T-mobile rom without the risk of an hard brick. I can take the risk of a SW brick.

Why would you want to do this

I'd be careful, there are probably significant differences, you can't use a vz phone on tmo network.
Sent from my LG-D851 using XDA Free mobile app

dbh369 said:
I'd be careful, there are probably significant differences, you can't use a vz phone on tmo network.
Sent from my LG-D851 using XDA Free mobile app
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I'm pretty certain that all Vzw phones come unlocked and can be used on t-mobile. Might not get all the bands to work correctly, but will still work.

Vz runs a cdma network for voice and data, t-mobile runs gsm. Some phones can do both, eg Verizon's world phones, but by no means all of them. YMMV
Sent from my LG-D851 using XDA Free mobile app

dbh369 said:
Vz runs a cdma network for voice and data, t-mobile runs gsm. Some phones can do both, eg Verizon's world phones, but by no means all of them. YMMV
Sent from my LG-D851 using XDA Free mobile app
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Click to collapse
If it is 4g it should be a "world" phone.

Here's the details: http://support.t-mobile.com/docs/DOC-6991
While the G3 isn't listed, the G2 is so I would assume it will work.

I have flashed a Verizon rom on my T-Mobile phone and almost everything worked fine. You'll need to adjust the apn and delete Bluetooth apn as it fc. The OP stated that he will most likely make a patch to fix the problems
Sent from my LG-D851 using XDA Free mobile app

Did u flash over kernel etc?

unciviilized said:
Did u flash over kernel etc?
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Click to collapse
Yes I flashed the stock d851 kernel after flashing the ROM and before booting
Sent from my LG-D851 using XDA Free mobile app

Ditching Verizon for AT&T do I need to change to AT&T Rom?

Title says it mostly. I'm switching my Verizon LG g3 over to AT&T by using their SIM and activating it. What I am wondering though is will I need to install an AT&T stock Rom or will my Verizon one work ?

So you are asking do you need to change your ROM to make Verizon SIM card working?

DelBoy said:
So you are asking do you need to change your ROM to make Verizon SIM card working?
Click to expand...
Click to collapse
No. I am asking do I need to change my Rom to make att SIM work

tatootie67 said:
No. I am asking do I need to change my Rom to make att SIM work
Click to expand...
Click to collapse
If there are some limitations that is not conencted with ROM and you cant do anything about that.
You are sure that your phone is unlocked to other carriers?
And sure that AT&T phones work with Verizon network?

DelBoy said:
If there are some limitations that is not conencted with ROM and you cant do anything about that.
You are sure that your phone is unlocked to other carriers?
And sure that AT&T phones work with Verizon network?
Click to expand...
Click to collapse
I am sure that the Verizon LG g3 can accept an at&t SIM card and work on their gsm network. But I am not sure if I have to change the software (Rom) or the baseband (radio software) to at&t software

You cant flash the at&t baseband to the verizon model i dont think there are software limitations to changing network apart from verizon specific apps the only problem could be hardware but if you think it works on both networks i see no issue
Sent from my LG-D855 using XDA Free mobile app

Neurom707 said:
You cant flash the at&t baseband to the verizon model i dont think there are software limitations to changing network apart from verizon specific apps the only problem could be hardware but if you think it works on both networks i see no issue
Sent from my LG-D855 using XDA Free mobile app
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Thank you that's what I was looking for

should i purchase the international or USA version of the note 7?

in terms of rooting which version should I purchase? I heard that the USA version has a locked bootloader which means it is not rootable correct? Is it impossible to unlock the bootloader unless Samsung does something or..? I would assume that since people are going so far as to refund their phones instead of waiting for an unlocker to be released if that is even possible.

I'm waiting to buy international version of phone with Xynos Chip and no AT&T bloatware. We will probably get better battery life and faster updates. We will lose HD and Wifi calling but no biggie IMHO.
Sent from my ONEPLUS A3000 using XDA-Developers mobile app

martinezma99 said:
I'm waiting to buy international version of phone with Xynos Chip and no AT&T bloatware. We will probably get better battery life and faster updates. We will lose HD and Wifi calling but no biggie IMHO.
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what do you mean we will lose HD?

Scathach said:
what do you mean we will lose HD?
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I think he means Voice over LTE (VoLTE)

also i dont mind waiting for the USA version to have an unlocked bootloader but the question i have is will it be possible? if not i might as well get the international version

Scathach said:
also i dont mind waiting for the USA version to have an unlocked bootloader but the question i have is will it be possible? if not i might as well get the international version
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Click to collapse
Chance's of the USA version being Unlocked are slim to none... Even the Canadian version is locked down.

galaxys said:
Chance's of the USA version being Unlocked are slim to none... Even the Canadian version is locked down.
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Click to collapse
i'm new to this whole thing so there might be things i dont understand but aren't there a lot of other phones that have locked bootloaders but was still able to be unlocked?

HNIC215 said:
I think he means Voice over LTE (VoLTE)
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Click to collapse
Yes, HD Voice is Voice over LTE.
Sent from my ONEPLUS A3000 using XDA-Developers mobile app

martinezma99 said:
Yes, HD Voice is Voice over LTE.
Sent from my ONEPLUS A3000 using XDA-Developers mobile app
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Having done development work in this field, I feel obligated to tell you that's not exactly true. Hd voice consists of two voice codecs - AMR Wideband, and AMR narrowband. These codecs do not explicitly require VoLTE to function. In fact, you can make "HD Voice" calls over 4G HSPA/HSPA+ using the narrowband version of the codec.
Sent from my SM-N930T using Tapatalk

Sounds good to me. Here's AT&T definition of HD voice.
https://www.att.com/esupport/article.html#!/wireless/KM1046244
Sent from my SM-G935U using XDA-Developers mobile app

martinezma99 said:
Sounds good to me. Here's AT&T definition of HD voice.
https://www.att.com/esupport/article.html#!/wireless/KM1046244
Sent from my SM-G935U using XDA-Developers mobile app
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Click to collapse
Yeah everyone dumbs down their definitions for the general public.
Basically, telephony in general has always had an 8khz spectrum width for audio. This was manly due to the fact it's small and low bandwidth. With the advent of 3.5g (hspa/hspa+ and lte) bandwidth is drastically increased. This allows for a doubled (16khz) spectrum width as there's plenty of bandwidth for it.
Sent from my SM-N930T using Tapatalk

martinezma99 said:
Yes, HD Voice is Voice over LTE.
Sent from my ONEPLUS A3000 using XDA-Developers mobile app
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For AT&T and Verizon, correct. T-Mobile uses HD Voice over their 3G network, and you get better sounding calls when talking to another T-Mobile subscriber (I understand they will eventually bridge HD Voice to other carriers). VoLTE for T-Mobile (Advanced Calling for VZW) allows you to keep your LTE signal while on a call, as opposed to dropping down to 3G.

Scathach said:
also i dont mind waiting for the USA version to have an unlocked bootloader but the question i have is will it be possible? if not i might as well get the international version
Click to expand...
Click to collapse
Good question. I heard a rumor that they did some sort of update and locked it?

I have the international variant and it does have VoLTE.
Sent from my SM-N930F using Tapatalk

BozQ said:
I have the international variant and it does have VoLTE.
Sent from my SM-N930F using Tapatalk
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What carrier?

louforgiveno said:
What carrier?
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Singapore here. Singtel.

Would love to get international variant if it works with Tmobile.

I can purchase an international version on eBay, there is one currently for 789$ but there is only gold platinum available and the seller ships from NY.... i want to get this but unsure if it is a fake phone or something ><

The Phone may be region locked. Mine (South East Asia) came with a card that says, the Phone needs to be using SEA sim card for the first boot up.

Scathach said:
I can purchase an international version on eBay, there is one currently for 789$ but there is only gold platinum available and the seller ships from NY.... i want to get this but unsure if it is a fake phone or something ><
Click to expand...
Click to collapse
I'm in the same boat, $789 seems lucrative, but no warranty so not sure should take that risk or not. I'm waiting for B&H to go on sale at least they provide their own 1 year warranty.