[Q] Can an Unlocked Captivate be used on SIMple mobile? - Captivate Q&A, Help & Troubleshooting

I flashed back down to 2.1 just for a clean start, then rooted and downloaded the GalaxyS_Unlock from the market, followed the steps, then got my phone unlocked. Dialed that certain keypad code to double check and sure enough, I'm carrier unlocked. My friend wants to buy it from me since it is unlocked, and he has SIMple mobile. Anybody know if he can get 3G/MMS/SMS/Calling/Data?!?!

You need to look for what freq it uses.
Edit: It seems they use Tmobiles 3G networks. If true you won't ever get 3g on this phone (stuck on EDGE).

But calling and SMS will work?

Yes it will work.

What price would you guys recommend I sell it for?

Not the place to ask that. To be honest prices vary so much on location.

Related

I got my G1 now what?

Hello peeps, i finally received my G1 today... Happy!
Two things i would like to know i do have a t-mobile sim here but i dont get t-mobile service in Australia so i will need to unlock it.
What would be the best way of going about this... could you point me in the best direction for the cheapest and safest Australian Unlock codes , other thing is somewhere i read its possible to skip the gmail bit and activate it later also someone said to me it was possible to start the wireless connection to enter those gmail details so i dont need a sim with data....
So main question is with a t-mobile sim here is it possible to access the phone without having it unlocked and without t-mobile service?
The other thing is i have heard going around is that dev images have unlock strings would this allow me to use a Australian sim to enter the details at the start without having to pay for unlock??
Call t-mobile to get the phone unlocked, they are quite relaxed with the unlock codes, secongany dev based rom something like cyan' s rom will allow you to skip the g-mail reg when you boot up and connect via wi-fi, even hero roms have that option
I tried messaging t-mobile but they said i needed proof of perches because i don't have a t-mobile account
Dominating said:
Hello peeps, i finally received my G1 today... Happy!
Two things i would like to know i do have a t-mobile sim here but i dont get t-mobile service in Australia so i will need to unlock it.
What would be the best way of going about this... could you point me in the best direction for the cheapest and safest Australian Unlock codes , other thing is somewhere i read its possible to skip the gmail bit and activate it later also someone said to me it was possible to start the wireless connection to enter those gmail details so i dont need a sim with data....
So main question is with a t-mobile sim here is it possible to access the phone without having it unlocked and without t-mobile service?
The other thing is i have heard going around is that dev images have unlock strings would this allow me to use a Australian sim to enter the details at the start without having to pay for unlock??
Click to expand...
Click to collapse
How to register the G1 without a sim or data plan...
http://forum.xda-developers.com/showthread.php?t=452316
As far as unlocking goes...? This is how to do it after you get the code.
http://www.blogsdna.com/2357/how-to-unlock-t-mobile-g1-phone.htm
or
Try Unlock-tmobileg1.com which charges $23.99 USD.
Search unlock g1 in the forum search bar to pull up some old threads about unlocking your phone, pretty sure that you would find a similar problem to your's there than I could give you I have t-mobile in the us, I am sure I have seen posts like your's solved in some old threads

[Q] switching to at&t and roms.

hey guys, so I decided to switch my service to AT&T. I really don't like relying on wifi calling as much as I do and aT&T has some good pricing. On the plus side I can also take all of our phones and use them on their network but I need to know a few things about flashing. Will I need to flash anything after I unlock or can I still use the roms I love? I've never had to unlock or use a phone on another carier so not sure what to expect. Any help would be great.
No. I use dynamiccat ROM. Just need to set the APN for att and you are good to go. Nothing different.
I use AT&T with the T-Mobile N4. Haven't run into any issues and the APN has always been auto-loaded, so you should be fine.
I'm glad this is fairly recent. I actually just switched today when I got my unlock code (I'm working for at&t now, but not in mobility). I've only been able to pick up HSPA+, not LTE. Any way to fix this?
There are a bunch of threads about this, but this is a good start
http://forums.androidcentral.com/samsung-galaxy-note-4/438703-buy-note-4-t-mobile-use-t.html

[Q] ?'s abou things that appear to not be right (noob ?s)

First off, thanks for all the great info on this site! I've used it quite a bit before registering (yeah, I'm a bit of a lurker), but now I need to see if I can get a few opinions on some items with my Atrix HD.
First off, I have T-Mobile and the phone is set for At&t. I contacted At&t and they gave me the unlock code for the phone. Here's the first strange thing: When I put in my T-Mobile SIM card, I do not get the unknown SIM error. I have to type in #073887* to get to the SIM unlock dialogue. When I put in the code though, it states "Network Unlock Request Unsuccessful". I'm not sure what is going on, the phone says it's on T-Mobile's network, but I'm lucky to get a 10% signal (my WP8 got 100% LTE at my house). I also still get the At&t startup screen and the system version is from ATT (98.5.38.MB886.ATT.en.US). Could I be doing something wrong or is this expected behavior? Is there a ROM that it could be flashed to in order to eliminate all of the At&t sections?
The second question, again being a total noob to Android (I was a WP8 user, smack me now), is there any solid guides on how to optimize this handset for T-Mobile as well as use in general? I see a lot of rooting software and ZIP files, but it gets to be a bit of a wash after a few hundred posts!
Some additional info:
I'm well into a 4G LTE range
Android version 4.1.1
Baseband version MB886_BP_100740.071.65.04P
Kernel version 3.0.42-gebf622c
Build date 04/28/14
Thanks in advance!

GrapeneOS Compatibility?

Hello,
Does anyone know if there are versions of the Google Pixel 5 that have locked bootloaders? For example on the Galaxy S10e Snapdragon model you can't enable OEM unlocking with a certain bootloader version, however on the Exynos version this isn't as much of an issue. Are there specific updates on the Google Pixel that may prevent you from using GrapheneOS? If I get a Google Pixel I want to ensure it will be compatible with GrapheneOS.
Thanks!
Verizon is locked. Keep away from Verizon variants for basically any device if you want it to have bootloader unlocking. AT&T also I believe. Unlocked variant is usually the way to go.
andybones said:
Verizon is locked. Keep away from Verizon variants for basically any device if you want it to have bootloader unlocking. AT&T also I believe. Unlocked variant is usually the way to go.
Click to expand...
Click to collapse
I'm assuming you're American? I don't live in the USA so that shouldn't be a problem. If I go to a carrier in my country I'll see if they will let me handle the phone before buying it. I'd check to see if the OEM can be unlocked. Is there anything I should test or look at on the phone to determine compatibility?
Skyty said:
I'm assuming you're American? I don't live in the USA so that shouldn't be a problem. If I go to a carrier in my country I'll see if they will let me handle the phone before buying it. I'd check to see if the OEM can be unlocked. Is there anything I should test or look at on the phone to determine compatibility?
Click to expand...
Click to collapse
I am, sadly.
May I ask why not just buy the unlocked variant? I use it here in the US, and it seems to not be hardware specific. When I bought the Pixel 5 I was on Verizon, and switched recently to AT&T, and all it took was swapping of the sim card and all is working fine.
Are other carriers cheaper?
And If I am understanding correctly, as long as you can get into those dev settings and verify "OEM unlocking" is there and working, you are set. But, don't fall back on just my limited knowledge, as I don't really know outside the US, and as far as Pixels are concerned, once its bootloader is unlocked, nothing will be locking it down, like on Samsung. Sans strange cases like paying to unlock the bootloader of a locked down carrier variant, which I haven't come across on the Pixel 5.
andybones said:
I am, sadly.
May I ask why not just buy the unlocked variant? I use it here in the US, and it seems to not be hardware specific. When I bought the Pixel 5 I was on Verizon, and switched recently to AT&T, and all it took was swapping of the sim card and all is working fine.
Are other carriers cheaper?
And If I am understanding correctly, as long as you can get into those dev settings and verify "OEM unlocking" is there and working, you are set. But, don't fall back on just my limited knowledge, as I don't really know outside the US, and as far as Pixels are concerned, once its bootloader is unlocked, nothing will be locking it down, like on Samsung. Sans strange cases like paying to unlock the bootloader of a locked down carrier variant, which I haven't come across on the Pixel 5.
Click to expand...
Click to collapse
And here we come full circle once again. The problem is that unlocked does not mean bootloader unlockable which I know you know but others might not. GrapheneOS needs to have an unlocked bootloader or it will not install. I don't know how a buyer can get a business to boot into the OS in order to see if the OEM switch is active. But as you state that is really the only way to tell. @Skyty which carrier are you using? I don't know how you will get that guarantee that you can unlock the bootloader but that is really what you need to do if you can't handle the phone.
In the case of Pixels, the unlocked version has the added bonus of having an unlockable bootloader, Google doesn't seem to play the games that Samsung does. They're both carrier unlocked and don't have the bootloader super locked down.
andybones said:
Verizon is locked. Keep away from Verizon variants for basically any device if you want it to have bootloader unlocking. AT&T also I believe. Unlocked variant is usually the way to go.
Click to expand...
Click to collapse
People that say "don't buy the Verizon model" never tell you that the unlocked Google version of the pixels brought to the Verizon network will NOT be VoLTE and preferred/default wifi calling options. There is NO root solution to this limitation that works.
Schroeder09 said:
People that say "don't buy the Verizon model" never tell you that the unlocked Google version of the pixels brought to the Verizon network will NOT be VoLTE and preferred/default wifi calling options. There is NO root solution to this limitation that works.
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Click to collapse
Correct me if I'm wrong but in my post I did say "usually" the way to go.
And, just to state, I had no issues with VoLTE on my rooted, unlocked variant P5 on Verizon, nor At&T, VoWIFI works also.. what am I doing special? Just curious. Here I am on a call using VoLTE.
Also, if they are creating VoLTE Magisk modules for China and more. This is the first complaint I've read about this issue. My HTC 10 was also an unlocked variant on Verizon with VoLTE, Wi-Fi Calling and preferred options were the same as my brother stock un-rooted Verizon variant. So, I'm lost. Sorry.
Schroeder09 said:
People that say "don't buy the Verizon model" never tell you that the unlocked Google version of the pixels brought to the Verizon network will NOT be VoLTE and preferred/default wifi calling options. There is NO root solution to this limitation that works.
Click to expand...
Click to collapse
Can you please explain this statement? I don't use wifi calling but I'm willing to test out your theories. I have an unlocked Google P5 and I'm on the Verizon network.
bobby janow said:
Can you please explain this statement? I don't use wifi calling but I'm willing to test out your theories. I have an unlocked Google P5 and I'm on the Verizon network.
Click to expand...
Click to collapse
When you buy the Google bootloader unlocked phones and being them to Verizon they do NOT have all the locked down Verizon version phone capabilities. On a pixel with a locked bootloader purchased from vzw you will have options in your settings to enable VoLTE services AND to enable Wi-Fi calling by default meaning whenever you're on wifi the phone will default to making calls over wifi as opposed to a network. This is useful of you have poor reception in your house or place of work.
Without it the phone will only use wifi to make calls when the network is very, very poor, and it still will only use wifi sporadically. It will switch to the wifi network AFTER the call starts sometimes. This will cause momentary dead air where you miss words and may think you dropped the call. It's a total PITA. There are supposed fixes and options you can toggle in the phone app by dialing some crazy number which is actually a code to access options and settings in the phone app. None of these options work. There are 3 guys in the world who have had success with these options and work arounds, and I'm sure they'll chime in here to encourage you to spend $1200 on a p6 or $600+ on a p5 because you'll **probably** be able to get these functions working. If you need or greatly prefer VoLTE and/or wifi calling know that you probably will NOT be the 4th guy in history to have success with these work arounds.
I do not care about VoLTE at all. I have never had it, but I guess it's super clear voice AND it's only available in a (growing) list of big cities. Who cares about SUPER clear voice? How often do you even actually use your phone anyway? I DO care about preferred wifi calling as this has a definable, useful function, and I was and still am (4 years later) ticked about not having the ability to have my phone preferably select a wifi network regardless of the signal coming from the cell network.
Schroeder09 said:
When you buy the Google bootloader unlocked phones and being them to Verizon they do NOT have all the locked down Verizon version phone capabilities. On a pixel with a locked bootloader purchased from vzw you will have options in your settings to enable VoLTE services AND to enable Wi-Fi calling by default meaning whenever you're on wifi the phone will default to making calls over wifi as opposed to a network. This is useful of you have poor reception in your house or place of work.
Without it the phone will only use wifi to make calls when the network is very, very poor, and it still will only use wifi sporadically. It will switch to the wifi network AFTER the call starts sometimes. This will cause momentary dead air where you miss words and may think you dropped the call. It's a total PITA. There are supposed fixes and options you can toggle in the phone app by dialing some crazy number which is actually a code to access options and settings in the phone app. None of these options work. There are 3 guys in the world who have had success with these options and work arounds, and I'm sure they'll chime in here to encourage you to spend $1200 on a p6 or $600+ on a p5 because you'll **probably** be able to get these functions working. If you need or greatly prefer VoLTE and/or wifi calling know that you probably will NOT be the 4th guy in history to have success with these work arounds.
I do not care about VoLTE at all. I have never had it, but I guess it's super clear voice AND it's only available in a (growing) list of big cities. Who cares about SUPER clear voice? How often do you even actually use your phone anyway? I DO care about preferred wifi calling as this has a definable, useful function, and I was and still am (4 years later) ticked about not having the ability to have my phone preferably select a wifi network regardless of the signal coming from the cell network.
Click to expand...
Click to collapse
I've read this about 5 times already and I still have no idea what you are talking about. I don't really use wifi calling but I'd be willing to test your theory. Walk me through the steps and tell me what I'm looking for. Wait maybe the 6th time is the charm. So if I turn on wifi calling on my phone now in a very good network setting you are saying that it will not use wifi until the network drops out right? How can I test that?
bobby janow said:
I've read this about 5 times already and I still have no idea what you are talking about. I don't really use wifi calling but I'd be willing to test your theory. Walk me through the steps and tell me what I'm looking for. Wait maybe the 6th time is the charm. So if I turn on wifi calling on my phone now in a very good network setting you are saying that it will not use wifi until the network drops out right? How can I test that?
Click to expand...
Click to collapse
Don't bother man, I give ample proof.
The "dialing some crazy number which is actually a code to access options and settings in the phone app" is *#*#4636#*#* FWIW. That's where my 3-4 pictures come from.
He doesn't even use his phone as a phone, but is upset about WIFI calling, so once again, I'm lost, but I won't be replying to anything he has to say. and let's just leave it alone because I don't make fake posts, and don't want to keep going off-topic, for IMO, no reason.
Schroeder09 said:
When you buy the Google bootloader unlocked phones and being them to Verizon they do NOT have all the locked down Verizon version phone capabilities. On a pixel with a locked bootloader purchased from vzw you will have options in your settings to enable VoLTE services AND to enable Wi-Fi calling by default meaning whenever you're on wifi the phone will default to making calls over wifi as opposed to a network. This is useful of you have poor reception in your house or place of work.
Without it the phone will only use wifi to make calls when the network is very, very poor, and it still will only use wifi sporadically. It will switch to the wifi network AFTER the call starts sometimes. This will cause momentary dead air where you miss words and may think you dropped the call. It's a total PITA. There are supposed fixes and options you can toggle in the phone app by dialing some crazy number which is actually a code to access options and settings in the phone app. None of these options work. There are 3 guys in the world who have had success with these options and work arounds, and I'm sure they'll chime in here to encourage you to spend $1200 on a p6 or $600+ on a p5 because you'll **probably** be able to get these functions working. If you need or greatly prefer VoLTE and/or wifi calling know that you probably will NOT be the 4th guy in history to have success with these work arounds.
I do not care about VoLTE at all. I have never had it, but I guess it's super clear voice AND it's only available in a (growing) list of big cities. Who cares about SUPER clear voice? How often do you even actually use your phone anyway? I DO care about preferred wifi calling as this has a definable, useful function, and I was and still am (4 years later) ticked about not having the ability to have my phone preferably select a wifi network regardless of the signal coming from the cell network.
Click to expand...
Click to collapse
I don't know about you, but I USE my phone primarily as a phone., this is why own a tablet and a small 13" laptop.
And just because I do use my phone and you don't doesn't mean anything, as far as what others use theirs for, you're not to say and neither am I.
I'm up here in the boondocks with hardly ANY service on the weekends, and get crystal clear calling when I am connected to and with Wi-Fi Calling on.
No work-arounds for me, just an unlocked variant P5, rooted and on the stock ROM, now on AT&T, switched the other week.. And all I had to do was swap the SIM cards..
The only thing I suppose I can't fully check (that I'm aware of) is the "SUPER clear voice" preferred calling as IDK if it has a setting to turn on/off such as VoLTE/VoWIFI.
And even so, it's subjective to the person using and listening to the phone.
And I've been using an unlocked variant device on Verizon with "IMS, advanced calling, Wi-Fi calling and all other Verizon features" since the HTC 10!
So, just saying, this isn't exactly new. And I'm certainly not telling anyone to go out and buy anything just because I get these features.
And Bravo to these "3" people. IF they have it working and you don't, it is what it is, I guess, I don't know what to say, other than they aren't breaking any rules by posting about it.
Also, anyone who spends $600-1200 based off someone's single post.. That's on them, bro. You can't control how people spend their $$
And I'm certainly not making this post to try and shill anyone to buy an unlocked variant. Like you don't care about VoLTE, I don't care what phone someone buys.
I think these screenshots speak for themselves.
andybones said:
Don't bother man, I give ample proof.
The "dialing some crazy number which is actually a code to access options and settings in the phone app" is *#*#4636#*#* FWIW. That's where my 3-4 pictures come from.
He doesn't even use his phone as a phone, but is upset about WIFI calling, so once again, I'm lost, but I won't be replying to anything he has to say. and let's just leave it alone because I don't make fake posts, and don't want to keep going off-topic, for IMO, no reason.
I don't know about you, but I USE my phone primarily as a phone., this is why own a tablet and a small 13" laptop.
And just because I do use my phone and you don't doesn't mean anything, as far as what others use theirs for, you're not to say and neither am I.
I'm up here in the boondocks with hardly ANY service on the weekends, and get crystal clear calling when I am connected to and with Wi-Fi Calling on.
No work-arounds for me, just an unlocked variant P5, rooted and on the stock ROM, now on AT&T, switched the other week.. And all I had to do was swap the SIM cards..
The only thing I suppose I can't fully check (that I'm aware of) is the "SUPER clear voice" preferred calling as IDK if it has a setting to turn on/off such as VoLTE/VoWIFI.
And even so, it's subjective to the person using and listening to the phone.
And I've been using an unlocked variant device on Verizon with "IMS, advanced calling, Wi-Fi calling and all other Verizon features" since the HTC 10!
So, just saying, this isn't exactly new. And I'm certainly not telling anyone to go out and buy anything just because I get these features.
And Bravo to these "3" people. IF they have it working and you don't, it is what it is, I guess, I don't know what to say, other than they aren't breaking any rules by posting about it.
Also, anyone who spends $600-1200 based off someone's single post.. That's on them, bro. You can't control how people spend their $$
And I'm certainly not making this post to try and shill anyone to buy an unlocked variant. Like you don't care about VoLTE, I don't care what phone someone buys.
I think these screenshots speak for themselves.
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Click to collapse
^^^ one of the 3 people who gets this stuff to work.
My point to the question was that this stuff seldom works. No one knows why. It worked for you. Cool. You got lucky. There are plenty of us who never get it work with alllll the root options and magisk modules put there.
Schroeder09 said:
^^^ one of the 3 people who gets this stuff to work.
My point to the question was that this stuff seldom works. No one knows why. It worked for you. Cool. You got lucky. There are plenty of us who never get it work with alllll the root options and magisk modules put there.
Click to expand...
Click to collapse
No, I'm not that lucky, believe you me.
And I've let this go on long enough.
Anymore OT on this subject gets deleted.
Thank you.
I sell pixel devices basically for a living that have Graphene/Calyx on them. If its a carrier device and sitll locked to that carrier, the bootloader OEM Unlock option will be forever grayed out until the device is SIM Unlocked.
The Pixel 5 can be Unlocked, Verizon or ATT. ATT and VZW will be locked until sim unlocked
KaptinBoxxi said:
I sell pixel devices basically for a living that have Graphene/Calyx on them. If its a carrier device and sitll locked to that carrier, the bootloader OEM Unlock option will be forever grayed out until the device is SIM Unlocked.
The Pixel 5 can be Unlocked, Verizon or ATT. ATT and VZW will be locked until sim unlocked
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Click to collapse
I saw those phones being sold for double the list price of a P5. Is that true? So basically charging a few hundred dollars to install a rom / os that anyone with a semblance of knowledge can do themselves. I'm not sure I have the details correctly so let me know if I'm wrong.
As for the second part of your statement, the VZW P5 cannot be bl unlocked no matter what you do, sim lock or not. I'm not sure about ATT.
bobby janow said:
I saw those phones being sold for double the list price of a P5. Is that true? So basically charging a few hundred dollars to install a rom / os that anyone with a semblance of knowledge can do themselves. I'm not sure I have the details correctly so let me know if I'm wrong.
As for the second part of your statement, the VZW P5 cannot be bl unlocked no matter what you do, sim lock or not. I'm not sure about ATT.
Click to expand...
Click to collapse
I usually add +40 to +75, unless I have original boxes and accessories. They really do sell for more, and people pay it.
As for the VZW P5, I have a few in my shop office right now that cannot be unlocked and their IMEI reads back as a Verizon phone, double checked by inserting another SIM and comes up locked. VZW Statement on unlocking is "if the phone was paid off (6 months of payments), it will auto unlock" .. so you probably have one that's paid off.
No, I bought the Google version. Even paid up you can't unlock the Verizon version. It's just the way they operate.
Seems like a fair price. This is the article I was talking about. https://9to5google.com/2021/09/05/n...-focused-grapheneos-that-costs-twice-as-much/

SM-G973U VoLTE

I recently bought an unlocked Galaxy S10 SM-G973U on Amazon. Got new SIM card from a Verizon MVNO and activated phone. The phone downloaded Android 12, One UI version 4.0. Firmware Build number SP1A210812.016.G973USQS6HVA1. Service provide Software version SAOMC_SM-G973U_OYN_SPR_12_0007 SPR/XAA/VZW. The problem is there is no menu option to activate/switch on VoLTE which means when I'm on a call there is no internet. I've talked to the MVNO tech support multiple times and was told they couldn't see any problems on their side, or that the SM-G973U does not support VoLTE which is not true. I found on one of AT&T's sites that the SM-G973U needs a software patch to enable VoLTE. I also found a couple of USSD codes but they either didn't work or didn't get me to the right setup screen to turn on VoLTE. I even stopped by a Samsung store and they weren't any help either. They said they could re-flash a stock firmware but it would revert to being locked to a carrier which is apparently also not true based on what I've read on this forum. Anyone know how I can turn on VoLTE or know of an apk file or software patch to enable VoLTE?? Does one of the firmware versions posted online have the patch to turn on VoLTE??
I think the issue is that your phone is showing SPR/XAA/VZW. You say you're on a verizon MVNO (who, by the way?)... but your phone isn't seeing that. It's actually saying it's active for SPRint. The second one, XAA, means it's not able to detect the SIM type... and the third was that it was originally VZW, which you can't change and isn't really relevant. (That's just what the phone was "born" as).
Bottom line, your phone isn't seeing VZW or an MVNO as the active CSC nor the SIM card. In the past, the easy thing was to change the CSC to what you need, but I haven't found a way to do that actively. What's supposed to happen is that the CSC should update based on the SIM card and cell signal you're getting... but this doesn't always happen. I bought two phones - one switched with no issues, the other I could not get it to change no matter what I tried.
That said, the easiest thing is to clean flash the phone with ODIN to a VZW or your MVNO's ROM, so that (hopefully) the CSC updates automatically. You could also consider flashing a U1 (unlocked) ROM, as yours is not technically an unlocked ROM (U means it's a carrier ROM... which may be why it's not switching over?)
Again, I tried all of these on the second phone I bought, and nothing would switch it (my carrier is Total Wireless, which is a VZ MVNO, and actually shows up as Tracfone (TFN). I had to return that second phone and get another with TFN already activated, and that worked fine... so be sure you do this before you drop out of your return period.
Bottom line, you should be able to get this all working... my VOLTE/VOWIFI works fine... just a matter of getting you there.
Thanks. My carrier is Straight Talk which is now VZ. The SIM card they sent me has the wording "Verizon Compatible" written on it. I finally found a document that explains how to interpret the CSC codes and your explanation clarifies my understanding of it. Sound like I'll have to re-flash it. Since it was originally a VZW phone I'm thinking I should flash it back to VZW to see if that works before trying U1.
Dumb question as this is my first time flashing a phone. (I've flashed quite a few other things but never had to worry about CSC codes and bootloader versions, etc.) I don't see VZW firmware on samfirms or sammobile. I see Sprint, T-Mobile, and one listed as USA without carrier info but I don't see one for VZW. Can someone point me to the correct location to download SM-g973U and U1 firmware for VZW? Greatly appreciated and thanks for putting up with my lack of knowledge!
Edited: Found the files on sammobile. Will try the U1 (VZW) first. I'll keep my fingers crossed.
schwinn8 said:
I think the issue is that your phone is showing SPR/XAA/VZW. You say you're on a verizon MVNO (who, by the way?)... but your phone isn't seeing that. It's actually saying it's active for SPRint. The second one, XAA, means it's not able to detect the SIM type... and the third was that it was originally VZW, which you can't change and isn't really relevant. (That's just what the phone was "born" as).
Bottom line, your phone isn't seeing VZW or an MVNO as the active CSC nor the SIM card. In the past, the easy thing was to change the CSC to what you need, but I haven't found a way to do that actively. What's supposed to happen is that the CSC should update based on the SIM card and cell signal you're getting... but this doesn't always happen. I bought two phones - one switched with no issues, the other I could not get it to change no matter what I tried.
That said, the easiest thing is to clean flash the phone with ODIN to a VZW or your MVNO's ROM, so that (hopefully) the CSC updates automatically. You could also consider flashing a U1 (unlocked) ROM, as yours is not technically an unlocked ROM (U means it's a carrier ROM... which may be why it's not switching over?)
Again, I tried all of these on the second phone I bought, and nothing would switch it (my carrier is Total Wireless, which is a VZ MVNO, and actually shows up as Tracfone (TFN). I had to return that second phone and get another with TFN already activated, and that worked fine... so be sure you do this before you drop out of your return period.
Bottom line, you should be able to get this all working... my VOLTE/VOWIFI works fine... just a matter of getting you there.
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Success! Was able to flash U1. VoLTE is now working. The CSC now shows TFN/TFN/VZW. Much appreciated!!!
Awesome, glad to hear that fixed it easily!
And TFN... I'm a fan there, too!
Hi! I'm having a similar issue with the same model and happy to see someone was able to enable VoLTE. However, most of what you said above is a foreign language to me. Would one of you be willing to give me a crash course in what you did?
Here's my specific situation. Last week (~1/4/23) Tracfone shutdown 3G. My Samsung Galaxy S10 (SM-G973U) says my network is set to LTE/3G/2G. I've read LTE is 4G, but still can't make or receive calls/texts, but data and 911 calls still work. Their tech support is no help.
From reading online it sounds like I may need VoLTE, not just LTE. Hence finding this thread. If one of you would be willing to spare some time to walk me through what you did I'd really appreciate it. In the mean time I'll try to figure out what "flashing" mean in a context that doesn't involve showing body parts
Thank you in advance!!
I'm on Tracfone (they were bought out by Verizon, BTW) - I was on Total Wireless before, which is now Total by Verizon. You might try contacting support again, as they are now VZ, and may have more help to offer.
My S10+ is running 975U1 now, and it works for VOLTE/VOWIFI properly. You may consider getting a U1 ROM installed, and maybe even the VZW (or TFN) version if available - that may get you working.
Did VOLTE ever work for you before on this or any other carrier? What is your CSC right now?
schwinn8 said:
I'm on Tracfone (they were bought out by Verizon, BTW) - I was on Total Wireless before, which is now Total by Verizon. You might try contacting support again, as they are now VZ, and may have more help to offer.
My S10+ is running 975U1 now, and it works for VOLTE/VOWIFI properly. You may consider getting a U1 ROM installed, and maybe even the VZW (or TFN) version if available - that may get you working.
Did VOLTE ever work for you before on this or any other carrier? What is your CSC right now?
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Thanks for replying! I'm not entirely sure if VoLTE has worked previously. I bought this phone 6/2021 and have only haver had tracfone service for it. I did find in my setting that VoLTE calling is set to on so it seems like it should work. Of note, the 4Glte in my status bar has always been grayed out (I went back and looked at some old screenshots).
My current CSC is VZW/XAA/ATT.
I spoke with tracfone customer service yesterday and they had me reset my network setting and now I don't even have data and the 4Glte in my status bar that was previously gray has now completely disappeared.
Their customer service refuses to talk to me now (literally no one answers when it transfers to an agent) or they hang up on me, and no I haven't been rude, but I have told them I'm recording the call.
I bought a mint mobile package last night because I'm beyond frustrated with Tracfone. I'm worried I'll have the same problems with Mint. I'm not sure if my settings are screwed up or if it's just Tracfone. In any case things are worse now after talking to customer service yesterday.
I also notice there was no APN setting on my phone so I updated it today and restarted but no difference.
Thanks for any input!! Much appreciated. Sorry for the novel.
Ok, so based on your CSC, the phone is not seeing the SIM's carrier - it's showing XAA which means it's using the default settings, which is probably why your not getting VOLTE. The active CSC of "VZW" may be ok... depends on which carrier you're on with Tracfone. I think they're VZW only, but I'm not completely sure.
You may want to just get a new SIM card and get that activated. HOWEVER, the problem you'll likely face is that the phone was born ATT (last CSC). This means the IMEI won't match a "compatible" phone to Verizon, and they will flat out refuse to activate it (even though WE al know it will work fine). If you still want to do that, you will have to activate the new SIM on a VZ "compatible" phone, then you can swap it to the S10. Note that VZ complains about this when you talk to them... so don't tell them you're doing this... but I've done it many times and it works fine.
If your actual behind-the-scenes carrier is ATT, then you can do the activation with your phone without issue.
If none of this works for you, you can switch carriers to an ATT MVNO and you should be good to go.
schwinn8 said:
Ok, so based on your CSC, the phone is not seeing the SIM's carrier - it's showing XAA which means it's using the default settings, which is probably why your not getting VOLTE. The active CSC of "VZW" may be ok... depends on which carrier you're on with Tracfone. I think they're VZW only, but I'm not completely sure.
You may want to just get a new SIM card and get that activated. HOWEVER, the problem you'll likely face is that the phone was born ATT (last CSC). This means the IMEI won't match a "compatible" phone to Verizon, and they will flat out refuse to activate it (even though WE al know it will work fine). If you still want to do that, you will have to activate the new SIM on a VZ "compatible" phone, then you can swap it to the S10. Note that VZ complains about this when you talk to them... so don't tell them you're doing this... but I've done it many times and it works fine.
If your actual behind-the-scenes carrier is ATT, then you can do the activation with your phone without issue.
If none of this works for you, you can switch carriers to an ATT MVNO and you should be good to go.
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OK some of that was still over my head. I'll see what happens with the Mint Sim... one f/u question now though. You said the ATT means my phone was "born" ATT. I bought my phone off backmarket and it was sold as "unlocked". Was that not true? How can I be sure in the future if I buy a used phone that's not from my carrier that it will actually be compatible?
Unlocked just means it's not locked to a carrier. That is true in your case, otherwise you wouldn't have been able to install ANY non-ATT SIM. So, you did the right thing to get an unlocked phone, and that is what you got.
The issue with compatibility is just the asshole carriers spreading lies. They do this to try to get people to buy THEIR phones, for no reason other than to make money and confuse consumers. The "born" CSC has no bearing on anything, really... neither does the carrier-specified IMEI. In your case, the XAA is good, which means it's a multi-carrier ROM, which works with all USA carriers.
Mint is a good idea - being an ATT carrier (IIRC), that should work and they should help you get it up and running even if they have to activate it. Good luck!
Awesome! Fingers crossed!! Thank you for your time and all the info❣
I'll try to remember to give an update in a few weeks for future readers
Goldie8709 said:
Awesome! Fingers crossed!! Thank you for your time and all the info❣
I'll try to remember to give an update in a few weeks for future readers
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UPDATE: Switching to Mint worked like a charm! Once my number ported and I put the new SIM card in, service was instantaneous! I've had Mint for 3 weeks now and the service is so much better than with Tracfone! My calls go through nearly as soon as I hit call, the internet is faster.
I didn't need to do a thing either. No making APN settings, etc. I'm betting it has to do with what you said about my phone being born ATT. So funny because the software(?) is Verizon - shows the Verizon when I restart/power up. I still love my bastard phone
So thankful I didn't buy a different phone!!! Again thanks for all your help @schwinn8
Thanks for reporting back and letting us all know, and I'm glad it worked out well!
Yeah, the carriers pull this nonsense all the time... it's BS. The phones are all the same, only the ROM changes. If we can change ROMs (which we can) then there should be no reason to force users to specific IMEIs. But we know why they do this - follow the money. I encourage people to write to the FTC and FCC about this (I have).

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