Database Users

Non-ATT phone works as ATT I337 with custom ROM?

Hi folks,
Sorry for the somewhat cryptic title. My question is simple:
Can I just buy a non-ATT/Verizon S4 without locked bootloader, ROM it up with any ROM I like without having to stick to safestrap-compatible ones, then apply the I337 build.prop APN flash, and have it work on ATT and identify itself to the Google Play store as an I337?
The reason I ask is I'm getting tired of the limitations on my I337 for use with various ROMs, and it might be worth it for me to buy an unlocked variant of the S4 on Swappa, then sell mine off. Sure, it would cost a few bucks, but then I could play with any ROM I want.
I just want to make sure that I'll be able to download the specific Apps I use from ATT etc. that seem to require the I337 model...
Am I missing anything?
Marc

I haven't even researched that. But, Verizon is CDMA. Maybe an unlocked TMobile phone would work. I know you can run their roms on att S4.

Right. I was looking at a T-Mobile device most likely, or an international unlocked version.
I understand the challenges working with Verizon devices... I just returned to ATT from Verizon and had to give up my RAZR MAXX HD due to poor compatibility between the networks.
But, if I understand correctly, I can get a T-Mobile or pretty much any other carrier phone with bootloader unlocked (other than Verizon, which wouldn't be unlocked and is CDMA-specific), and it should work on ATT once the APN info is entered. I'm just looking for explicit confirmation it works, and that the phone can pretend to be an I337 so my software will install properly...
Thanks all!
Marc

not sure on specifics as i haven't tried. i know some here have and will reply--:good:

Frankenscript said:
Hi folks,
Sorry for the somewhat cryptic title. My question is simple:
Can I just buy a non-ATT/Verizon S4 without locked bootloader, ROM it up with any ROM I like without having to stick to safestrap-compatible ones, then apply the I337 build.prop APN flash, and have it work on ATT and identify itself to the Google Play store as an I337?
The reason I ask is I'm getting tired of the limitations on my I337 for use with various ROMs, and it might be worth it for me to buy an unlocked variant of the S4 on Swappa, then sell mine off. Sure, it would cost a few bucks, but then I could play with any ROM I want.
I just want to make sure that I'll be able to download the specific Apps I use from ATT etc. that seem to require the I337 model...
Am I missing anything?
Marc
Click to expand...
Click to collapse
The rom of 337 might work on other variants; however, if you ever want to flash an rom, the pure samsung rom of I9505 might be a better choice; And also, if you buy a non-att variant s4, you might loose 4G data connection, even 3G, because they are simply not compatible with att network (hardware limitation), so please be careful before you make the buy; The other question, by now, I couldn't find a way to 'cheat' google play to identify a phone to att i337. If you really like those apps from att, you can always download them from other app sources other from google play.
Godd luck!

wzhao14 said:
The rom of 337 might work on other variants; however, if you ever want to flash an rom, the pure samsung rom of I9505 might be a better choice; And also, if you buy a non-att variant s4, you might loose 4G data connection, even 3G, because they are simply not compatible with att network (hardware limitation), so please be careful before you make the buy; The other question, by now, I couldn't find a way to 'cheat' google play to identify a phone to att i337. If you really like those apps from att, you can always download them from other app sources other from google play.
Godd luck!
Click to expand...
Click to collapse
Thanks Wzhao.
My intent would be to be able to flash non-Samsung ROMS (like AOSP etc.), non-touchwiz ROMs.
And definitely I would have to buy a phone with ATT-style hardware in terms of antennas/frequency. I believe the T-Mobile ones meet this requirement but it's unclear whether I would need to get the phone SIM-unlocked to use it on ATT.
As for identifying a phone as the ATT I337: My experience using Hyperdrive (briefly) was that it identified the phone as a Verizon phone... Google play wouldn't let me install apps that were ATT specific. I believe that flashing the ATT build.prop settings fix this, but doing so messed up Hyperdrive because it interfered with the Hyperdrive Tweaks utility. There are several build.prop settings that identify the phone... the simplest of them SHG-I337 in some particular location isn't enough, but there's a hidden identifier and several others that can be set.
If you are interested in testing it, you can flash the ATT build.prop found here:
http://forum.xda-developers.com/showpost.php?p=51112381&postcount=9
which links to here: http://d-h.st/6tN
I believe it sets all the right things, because flashing it over GoldenEye makes the phone recognized by Google Play for ATT apps. I'd be interested to hear experiences of someone using a T-Mobile or other variant S4, and if it works as well on that hardware...
Marc

[Q] [Q&A] Trying to get Simple Mobile SIM to work on Note 3

Hello,
This is has been a very frustrating situation but here is where I am at currently. I use a carrier called "Simple Mobile" and they are an under carrier to TMobile. I want to own and use a Samsung Note 3 but can not get my SIM to work. That is the short introduction. I am providing some more information because this has been a long drawn out process but the bottom line is I want to continue using Simple Mobile AND use a Note 3.
Background: Back in late June 2014, I bought a used Note 3 N900V from ebay after I broke my Note 1. I love my Note 1 and it was the ATT branded model. I had the phone (Note 3)and it worked but had a very poor signal compared to using the same SIM card with my Note 1 (those threads are still available under my username). After many failed attempts to correct the situation and being educated about the phone model and so forth I found it in my best interest to return the phone for a refund and just repair my Note 1.
Currently: I repaired my Note 1 after the fiasco with the N900V model. However, my screen went purple recently and then wouldn't light up at all anymore. So I am where I was last time and looking to replace it. This time, armed with my knowledge from last time, I bought another Note 3 (model N900T this time), thinking it would be more compatible with my Simple Mobile (sub carried by T Mobile) as the N900T is a T-Mobile friendly phone. NOTE: I bought the phone used and through a mistake of the seller, what I have is actually a N900W8. The seller had replaced the screen and did a motherboard swap. The result is a phone with markings that say N900T but after a boot up provides software descriptions showing N900W8.
Why do I want to use Simple Mobile so bad? : Simple mobile charges me 40.00 + tax for Unlimited Data, Calls and Texts domestically + limited international texting to certain countries. For me, that is a great deal and I dont have to do a contract or pay extortionate fees to other providers. Yes, I am a cheap Bas*&^d as evidenced by me buying used phones to save a few hundred $$$'s here and there.
Dilemma: In my bid to purchase a Note 3 that works I looked at the Simple Mobile site. They do indeed sell a new model N900T, Link here: <http://www.mysimplephones.com/Samsung-Galaxy-Note-III-Simple-Mobile.html> HOWEVER, when you look at another page for compatible phones you will find that the N900T is not even a compatible model for Simple Mobile's 4G LTE service. YOU WILL HOWEVER FIND that there are two models of Note 3 that WILL work. The N900W8 (Canadian Model) and the N900A (ATT). This link shows those compatible 4G LTE phones: <http://simplemobileinfoblast.com/4glte/phones.php>
Interesting note: While I do actually have a 4G LTE compatible phone technically, since the phones software shows it is a N900W8 despite the shell being embossed N900T, it will not work AT ALL on my carrier. All attempts result in "NOT REGISTERED ON NETWORK" messages. My research thus far seems to indicate that the N900W8 Models come unlocked as new so I do not feel that my phone is locked.
Conclusion: My Note 1 is broken and I don't want to repair it so I will sell it as is elsewhere. I have a Note 3 N900W8 that will not work that I am going to return to the seller since it is not even the right model to begin with. It should be noted that the screen on the N900W8 WAS replaced but not very well and there are some annoying defects on the underside of the screen as a result. So after all of this expostition, Can anyone please tell me what model of Note 3 to get that will work with my simple mobile SIM?
It is my sincere hope that someone has gone through this same situation and can help guide me a bit.
Thank you

Wallace Bagwell said:
Hello,
This is has been a very frustrating situation but here is where I am at currently. I use a carrier called "Simple Mobile" and they are an under carrier to TMobile. I want to own and use a Samsung Note 3 but can not get my SIM to work. That is the short introduction. I am providing some more information because this has been a long drawn out process but the bottom line is I want to continue using Simple Mobile AND use a Note 3.
Background: Back in late June 2014, I bought a used Note 3 N900V from ebay after I broke my Note 1. I love my Note 1 and it was the ATT branded model. I had the phone (Note 3)and it worked but had a very poor signal compared to using the same SIM card with my Note 1 (those threads are still available under my username). After many failed attempts to correct the situation and being educated about the phone model and so forth I found it in my best interest to return the phone for a refund and just repair my Note 1.
Currently: I repaired my Note 1 after the fiasco with the N900V model. However, my screen went purple recently and then wouldn't light up at all anymore. So I am where I was last time and looking to replace it. This time, armed with my knowledge from last time, I bought another Note 3 (model N900T this time), thinking it would be more compatible with my Simple Mobile (sub carried by T Mobile) as the N900T is a T-Mobile friendly phone. NOTE: I bought the phone used and through a mistake of the seller, what I have is actually a N900W8. The seller had replaced the screen and did a motherboard swap. The result is a phone with markings that say N900T but after a boot up provides software descriptions showing N900W8.
Why do I want to use Simple Mobile so bad? : Simple mobile charges me 40.00 + tax for Unlimited Data, Calls and Texts domestically + limited international texting to certain countries. For me, that is a great deal and I dont have to do a contract or pay extortionate fees to other providers. Yes, I am a cheap Bas*&^d as evidenced by me buying used phones to save a few hundred $$$'s here and there.
Dilemma: In my bid to purchase a Note 3 that works I looked at the Simple Mobile site. They do indeed sell a new model N900T, Link here: <http://www.mysimplephones.com/Samsung-Galaxy-Note-III-Simple-Mobile.html> HOWEVER, when you look at another page for compatible phones you will find that the N900T is not even a compatible model for Simple Mobile's 4G LTE service. YOU WILL HOWEVER FIND that there are two models of Note 3 that WILL work. The N900W8 (Canadian Model) and the N900A (ATT). This link shows those compatible 4G LTE phones: <http://simplemobileinfoblast.com/4glte/phones.php>
Interesting note: While I do actually have a 4G LTE compatible phone technically, since the phones software shows it is a N900W8 despite the shell being embossed N900T, it will not work AT ALL on my carrier. All attempts result in "NOT REGISTERED ON NETWORK" messages. My research thus far seems to indicate that the N900W8 Models come unlocked as new so I do not feel that my phone is locked.
Conclusion: My Note 1 is broken and I don't want to repair it so I will sell it as is elsewhere. I have a Note 3 N900W8 that will not work that I am going to return to the seller since it is not even the right model to begin with. It should be noted that the screen on the N900W8 WAS replaced but not very well and there are some annoying defects on the underside of the screen as a result. So after all of this expostition, Can anyone please tell me what model of Note 3 to get that will work with my simple mobile SIM?
It is my sincere hope that someone has gone through this same situation and can help guide me a bit.
Thank you
Click to expand...
Click to collapse
OK, so the Note N9005 is the same as the T and w8 models except for the radio differences. From the sounds of it the N3 you pruchased may have been blocked as it's carrying the not registered on network error (which is the common one for this) however. it's possible it's locked down but my understanding is the w8 is quite unrestricted.
IN regards to what model you should/need to use, if your carrier is under the T-Mo umbrella/piggy backs of their network then you need the N900T which is T-Mo's device. - But you may wanna ring T-Mo and ask to be 100% positive.
EDIT You wanna avoid the N900A (ATT) unless you're 100% sure you can get LTE with your provider, there's been a few people who have bough the A model and haven't been able to use it due to it being for ATT only (again, radio issues.)
After re-reading, I think the N900T is the one for sure (especially as Simple sell it (doubt they'll sell a device that isn't LTE compatible?), and I would ring Simple and T-Mo for 100% clarification as obviously, dropping a few hundred $$ on a phone which may not work isn't nice.

radicalisto said:
OK, so the Note N9005 is the same as the T and w8 models except for the radio differences. From the sounds of it the N3 you pruchased may have been blocked as it's carrying the not registered on network error (which is the common one for this) however. it's possible it's locked down but my understanding is the w8 is quite unrestricted.
IN regards to what model you should/need to use, if your carrier is under the T-Mo umbrella/piggy backs of their network then you need the N900T which is T-Mo's device. - But you may wanna ring T-Mo and ask to be 100% positive.
EDIT You wanna avoid the N900A (ATT) unless you're 100% sure you can get LTE with your provider, there's been a few people who have bough the A model and haven't been able to use it due to it being for ATT only (again, radio issues.)
After re-reading, I think the N900T is the one for sure (especially as Simple sell it (doubt they'll sell a device that isn't LTE compatible?), and I would ring Simple and T-Mo for 100% clarification as obviously, dropping a few hundred $$ on a phone which may not work isn't nice.
Click to expand...
Click to collapse
Thank you for reading and replying...
Im quite torn but what you say makes plenty of sense.
I am under the same thought process as yours thinking that the N900T version they sell in their own shop is the model to get.... but then I read about the compatible devices with "4G LTE" and dont even see it, but instead see the N900W8 and N900A models instead. I had the N900V model Note 3 before and it "worked" on my network but the coverage and signal strength suffered greatly and displayed +H most of the time. So the N900V at least worked with my SIM vs the N900W8 not even using the network (it does show ATT and Simple Mobile networks under the network settings but cant register on either one).
I know they are different phones completely but the ATT branded Note 1 gave me no problems at all with my Simple SIM. My wife has the same model Note 1 as me and her phone actually shows 4G LTE next to the bars whereas mine only shows 4G. I called and spoke to CS a few months ago to figure out the disparity and it would seem that since I bought her SIM card more recently that mine (hers 2014 vs mine 2011) that the SIM itself makes the network 4G LTE more friendly somehow. So with that in mind I have ordered a new micro SIM from Simple thinking that it might solve some issues. The only reason I never ordered a new SIM sooner is because I wasnt really worried about the 4G LTE vs 4G problem as my UL/DL speeds were more than adequate. Hence, I am seriously thinking of trying out the N900A model.
I guess the easiest answer is that I think the N900T model "would work" but the compatible model page shows the other 2 models and not the N900T with regards to 4G LTE coverage and NOT general signal coverage.
I am going to ring T mobile and see if this model is locked down, thanks for that, good advice.
In regards to me being 100% sure about the ATT model being LTE compatible, I am thinking it would be possible (not 100% though) with regards to my wife's N1 and newer SIM (hers is also a branded ATT N1 like my broken ATT N1. with an older SIM).
Any thoughts? Thanks again...

The Note 3, changed a lot in regards to the hardware and radios used. Samsung and the carriers in their infinite wisdom trying to lock people down via either region lock, sim lock and boot loader lock downs.
It is possible that the A model will work, it could be that Simple has a deal with T-Mo and ATT in which it can use both carriers towers for H+ and LTE.
See what T-Mo say, and even give ATT a ring also, no harm in asking them direct.
Also as you've stated the sim may also have something to do with picking up LTE straight of the bat.
Ring T-Mo/ATT see what they say, then that way you know which way to go and at least doing it that way you have the comfort in knowing that the provider themselves have assured you what will and won't work.
Sent from my Spectrum ZX +2

radicalisto said:
The Note 3, changed a lot in regards to the hardware and radios used. Samsung and the carriers in their infinite wisdom trying to lock people down via either region lock, sim lock and boot loader lock downs.
It is possible that the A model will work, it could be that Simple has a deal with T-Mo and ATT in which it can use both carriers towers for H+ and LTE.
See what T-Mo say, and even give ATT a ring also, no harm in asking them direct.
Also as you've stated the sim may also have something to do with picking up LTE straight of the bat.
Ring T-Mo/ATT see what they say, then that way you know which way to go and at least doing it that way you have the comfort in knowing that the provider themselves have assured you what will and won't work.
Sent from my Spectrum ZX +2
Click to expand...
Click to collapse
I'm looking up the contact numbers for T Mobile now and will probably try to look at what ATT has to say/can do.
Simple Mobile, bless their hearts, to keep things so cheap use a calling center in the Philippines and have been of very little help to me trying to figure this out.
I'll keep this thread updated but I'm still torn between the N900V and N900A, only leaning towards the N900A because of the link I shared earlier with regards to 4G LTE compatibility. :/
Thanks again Radicalisto.

Hope you get it sorted, let me know the outcome I'm quite curious now myself. Good luck!
Sent from my Spectrum ZX +2

radicalisto said:
Hope you get it sorted, let me know the outcome I'm quite curious now myself. Good luck!
Sent from my Spectrum ZX +2
Click to expand...
Click to collapse
So I have finally reached a solution.
After all of the hassle and trial and error, I was able to get a Note 3 to work with 4G LTE by using a Note 3 model N900A and an updated Simple Mobile Sim card.
It seemed a little counter intuitive to use an ATT branded phone versus a T Mobile branded phone knowing that Simple is undercarried by T mobile but that is just what it took.
It should be known that I did not try and use my "old" SIM from Simple but ordered a new one and had my number transferred to the new SIM before the phone arrived. The rational behind purchasing a new SIM was based on the experience of my wife and I using our Note 1(s). Both of our Note 1(s) were ATT branded (i717). Though I bought her Simple SIM about 2 years after my own. The result was my phone only showed 4G while hers would should 4G LTE. Strange being they are both the same model phone with the same carrier but that was the fix: updated SIMs, whether it was embedded software or something else.
So for now, I can close this little chapter and enjoy my Note 3.
If anyone else is reading this, please feel free to message me and I will be happy to share anything I may have forgotten to share here.
Thanks to everyone who helped as well, I know I have a few threads on XDA looking for solutions. :/
Wallace

Good stuff, glad you got it sorted

[Q] n900v in the uk non verizon customer

I know this has been discussed but I really would like a more defined answer if anyone can. I'm using a n900v variant in the uk with vodafone. I have data (h+) by manually adding the apn and using the global option (or lte option until signal drop then phone forces me back to global). Data is slow though and signal drops quite often. Could this be to do with different frequencies? I reckon as I'm not going to use any verizon service or cdma that I should be able to flash a n9005 rom but the general opinion is that this won't work. I don't understand why. I'm no expert but I'm pretty sure that both n9005 and n900v have the same components. Wouldn't it be possible with Odin or is it just that imei's and such don't match? It must be unlocked as I'm using vodafone and the guy I swapped with was with ee i think ( i didn't check the imei when we swapped and thought I was getting a n9005, my stupid fault I know ). I read that someone said they may use different nfc components but I'm not worried as I don't really use nfc. Other than nfc all components should match and it's definitely lte so surely I would be better off with a rom designed for my network. As a last point ( again ) I would prefer an unbranded version just to get rid of all the unusable bloatware that comes with Verizon phones. What say the good people of xda then?

Did some checking myself. Finally decided to switch off global roaming and switch to gsm/lte option. Data has speeded up and in fact the whole phone seems quicker. Not sure if it's a placebo effect but the global option was pointless as i wasn't using Verizon data anyway. Checked frequencies used by vodafone and n900v's capabilities. Phone has no problems with 800 mhz ( also known as 850 mhz ) used by vodafone. N900v has the same capabilities as the n9005 radiowise so I really cannot see why I couldn't flash n9005 firmware unless verizon have done something to stop it. I really want to flash lollipop but would rather wait for verizon to release it than run the risk of bricking. Has anyone tried it?

New S4 Recommendations

I'm looking to buy a new phone but don't want/need the latest and greatest. I'm happy with the performance of my HTC One Mini, my work HTC One X/XL and my wife's S4 Active, all AT&T phones used in the U.S. My One Mini just suffered a horrible mountain bike crash which busted the screen up pretty bad, then too, my old eyes are tired of that tiny screen. I've also had bad luck with the built in battery and lack of SD card slot. So I was thinking S4 would be ok by me. Asking on the device forum I've gotten 50-11 answers some of which are conflicting answers. I was thinking the i9505 would be the right phone until someone piped up stating it wouldn't work on LTE here. From all I've seen it looks to me like that senior member don't know what they're talking about. Here's my criteria:
1. 4.5" to 5" screen
2. Unlocked/unlockable and can easily accept custom ROMs
3. Prefer to stick with a Kit Kat Rom as it gets along with my Do Not Disturb app better than Lollipop due to the built-in app on Lollipop
4. Removable battery
5. SD Slot
6. LTE service on AT&T/T-Mobile and Caribbean and South American Countries
7. Custom ROM must allow hotspot w/o AT&T controlling my use (I have unlimited internet on my plan and want to make use of it)
Background: I'm almost green having only installed a custom ROM on my work phone an HTC One X/XL from AT&T. Apparently it's one of the harder phones to unlock the bootloader and permanent Root is impossible I think. I 1st installed CM12.1 on the HTC ONE X and ran into conflicts and buggy operations. After a few weeks of testing I backed it up, wiped it and installed CM11 which I truly like. No experience or much understanding of KNOX, ODIN or ODEX. I only read bits and pieces on those while trying to figure out which S4 variant will fit my need. Lastly, were can I get a new phone off contract? Anybody purchased from www.Cell2Get.com? I was about to buy this phone prior to the member claiming it wouldn't work on AT&T.
http://www.cell2get.com/samsung-galaxy-s4-i9505-16gb-unlocked-gsm-android-cell-phone-p-5122.html

IRBent said:
I'm looking to buy a new phone but don't want/need the latest and greatest. I'm happy with the performance of my HTC One Mini, my work HTC One X/XL and my wife's S4 Active, all AT&T phones used in the U.S. My One Mini just suffered a horrible mountain bike crash which busted the screen up pretty bad, then too, my old eyes are tired of that tiny screen. I've also had bad luck with the built in battery and lack of SD card slot. So I was thinking S4 would be ok by me. Asking on the device forum I've gotten 50-11 answers some of which are conflicting answers. I was thinking the i9505 would be the right phone until someone piped up stating it wouldn't work on LTE here. From all I've seen it looks to me like that senior member don't know what they're talking about. Here's my criteria:
1. 4.5" to 5" screen
2. Unlocked/unlockable and can easily accept custom ROMs
3. Prefer to stick with a Kit Kat Rom as it gets along with my Do Not Disturb app better than Lollipop due to the built-in app on Lollipop
4. Removable battery
5. SD Slot
6. LTE service on AT&T/T-Mobile and Caribbean and South American Countries
7. Custom ROM must allow hotspot w/o AT&T controlling my use (I have unlimited internet on my plan and want to make use of it)
Background: I'm almost green having only installed a custom ROM on my work phone an HTC One X/XL from AT&T. Apparently it's one of the harder phones to unlock the bootloader and permanent Root is impossible I think. I 1st installed CM12.1 on the HTC ONE X and ran into conflicts and buggy operations. After a few weeks of testing I backed it up, wiped it and installed CM11 which I truly like. No experience or much understanding of KNOX, ODIN or ODEX. I only read bits and pieces on those while trying to figure out which S4 variant will fit my need. Lastly, were can I get a new phone off contract? Anybody purchased from www.Cell2Get.com? I was about to buy this phone prior to the member claiming it wouldn't work on AT&T.
http://www.cell2get.com/samsung-galaxy-s4-i9505-16gb-unlocked-gsm-android-cell-phone-p-5122.html
Click to expand...
Click to collapse
- AT&T has it's own variant of the S4. It's called the "SGH-I337".
- The I9505 will not work with LTE on the AT&T network. It support different bands. So the member was correct. You can see it here:
https://en.wikipedia.org/wiki/Samsung_Galaxy_S4#Model_variants
- The "SGH-I337" has a locked bootloader and cannot be unlocked. Only some old devices will have an unlocked bootloader because they never upgraded their software. Thus you cannot use custom roms like CM.

Lennyz1988 said:
- AT&T has it's own variant of the S4. It's called the "SGH-I337".
- The I9505 will not work with LTE on the AT&T network. It support different bands. So the member was correct. You can see it here:
https://en.wikipedia.org/wiki/Samsung_Galaxy_S4#Model_variants
- The "SGH-I337" has a locked bootloader and cannot be unlocked. Only some old devices will have an unlocked bootloader because they never upgraded their software. Thus you cannot use custom roms like CM.
Click to expand...
Click to collapse
So is the GT-I9505G the preferred phone to have and to mod and if so, can I buy new one without getting a fake?
"Google Play Edition
At the Google I/O 2013 keynote, Samsung and Google revealed that an edition of the U.S. S4 would be released on June 26, 2013 through Google Play, initially featuring stock Android 4.2.2, later updated to 4.4.4, with Samsung provided updates; it has an unlockable bootloader (similar to Nexus devices) and supports LTE on AT&T and T-Mobile's networks. The model number is GT-I9505G."

I'm likely "that member", because I have an I9505 (not I9505G) running on Straight Talk, which is a US MVNO that rents bandwidth from all the major US carriers. The I9505 will not work on LTE here in the US because the LTE frequencies used worldwide (1, 3, 5, 7, 8, 20) are not the frequencies used by the carriers here in the US. The I9505G is a different story. It has the LTE frequencies needed to work here in the US, and does not have Touchwiz as it uses stock Android.
You can't purchase one new because they've been discontinued for some time now. You may want to check out Swappa (link at the top of the page) and see if they have a used one you can purchase.

Strephon Alkhalikoi said:
I'm likely "that member", because I have an I9505 (not I9505G) running on Straight Talk, which is a US MVNO that rents bandwidth from all the major US carriers. The I9505 will not work on LTE here in the US because the LTE frequencies used worldwide (1, 3, 5, 7, 8, 20) are not the frequencies used by the carriers here in the US. The I9505G is a different story. It has the LTE frequencies needed to work here in the US, and does not have Touchwiz as it uses stock Android.
You can't purchase one new because they've been discontinued for some time now. You may want to check out Swappa (link at the top of the page) and see if they have a used one you can purchase.
Click to expand...
Click to collapse
Really good and interesting reply. Being new to this stuff and having not kept up with cellphone technology, some of the things you guys just know, I'm having to try to understand. At first I assumed all 9505's were the same, but apparently I was wrong there. Then I also thought that since most cellphone review sites showed a plethora of Freq. and bands, with at least on or two being those that AT&T and most other North American GSM carriers use, I assume that meant I could get that model of phone. little did I know that those two lines of freqs and bands were for different versions of that same model, one for here and being a carrier locked phone and the other line being and international phone without the proper band for use here. So now after learning that difference it appears to me that there may be now way possible to purchase a new S4 and turn it into a custom ROM phone. So if I understand you and the carrier stuff correctly, you're using a plain 9505 and piggybacking off AT&T by way of StraightTalk like so many of us do. However since your phone is an international version you don't have LTE, is that right? One last thing I've yet to read or learn about but saw when I was putting CM11 and 12.1 on my HTC One X/XL (AT&T), I kept seeing stuff about "the radio". The way it read made me think they were NOT talking about an FM radio for music, but the freqs the phone itself uses. I think I recall them flashing "radios" which I assume they meant they were able to change the original freqs/bands that the model came with to one more useful here. Is that something that truly exists and can be done even on an S4 variant? My assumption is that it CANNOT be done or else you'd have done so already on your i9505.

IRBent said:
So if I understand you and the carrier stuff correctly, you're using a plain 9505 and piggybacking off AT&T by way of StraightTalk like so many of us do. However since your phone is an international version you don't have LTE, is that right?
Click to expand...
Click to collapse
Correct.
IRBent said:
My assumption is that it CANNOT be done or else you'd have done so already on your i9505.
Click to expand...
Click to collapse
Again correct. With Samsung, their firmware loading software, Odin, actually checks and makes sure the parts of the firmware match the model of the S4 connected to the PC. If they don't match, Odin will instantly fail. The only way to try and enable LTE on the I9505 is to delve into the low-level firmware for the LTE chip and attempt to rewrite it so it can see the added frequencies. However, I don't recommend it. Not only is it a very intricate process compared to something like rooting, it's also quite possible that you could render the LTE chip non-functional. I tried it, and nearly lost the ability to use my phone at all due to having my phone's SIM lock restored.
If you do decide to get an S4, an I9505G is likely your best bet. Not only does it have the AT&T frequencies, it's also got an unlocked bootloader (unlike the AT&T model) and is also carrier unlocked right out of the box. That last means you can use it on T-Mobile and carriers which use GSM SIM cards. Other choices would be the T-Mobile S4 (SGH-M919) or the North American S4 (SGH-I337M). All these phones include the AT&T frequencies and also have an unlocked bootloader so customization is easier.

Strephon Alkhalikoi said:
If you do decide to get an S4, an I9505G is likely your best bet. Not only does it have the AT&T frequencies, it's also got an unlocked bootloader (unlike the AT&T model) and is also carrier unlocked right out of the box. That last means you can use it on T-Mobile and carriers which use GSM SIM cards. Other choices would be the T-Mobile S4 (SGH-M919) or the North American S4 (SGH-I337M). All these phones include the AT&T frequencies and also have an unlocked bootloader so customization is easier.
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I thank you so much sir. This answer is direct and explains exactly what I wanted to know. I only wish it were possible to purchase one of those models new so I could ensure years of use void of glitches due to possible abuse by the previous owner. If I can't find one of the above models I will probably be looking for some other make/model, preferably a new phone not used. Do you know if it's possible to get a new phone that meets the criteria below?
1. Unlocked bootloader or one that can be unlocked
2. Removable battery
3. 4.7" - 5" screen
4. SD card
5. Capable of being used as a hotspot ( I have unlimited internet but need to thwart AT&T from controlling my use)
6. Rootable and custom ROM capable
7. Can be used in U.S, South America and Caribbean (I think most of those places all use the same freqs/bands as U.S.)

That is why on Swappa you search for the ones labeled Mint or New. My device was Mint off Swappa, and the main reasons were that it was always in a case, and had a tempered glass screen protector installed.
For a current flagship-level device, looking at your laundry list, I believe you need to adjust your expectations. Not because of the software, but because of the hardware. LG is perhaps the only manufacturer still offering both removable batteries and MicroSD card slots, but their flagship device has a larger screen than you want. Motorola doesn't have removable batteries. Google provides neither, just like Samsung. Sony is an unknown, but their devices are not common here in the US.
Your best option is to go with a larger screen size and get an LG G4. If you absolutely MUST have the smaller screen, then you want a used Galaxy S4 or S5, so long as they aren't AT&T devices.

Strephon Alkhalikoi said:
For a current flagship-level device, looking at your laundry list, I believe you need to adjust your expectations. Not because of the software, but because of the hardware. LG is perhaps the only manufacturer still offering both removable batteries and MicroSD card slots, but their flagship device has a larger screen than you want. Motorola doesn't have removable batteries. Google provides neither, just like Samsung. Sony is an unknown, but their devices are not common here in the US.
Your best option is to go with a larger screen size and get an LG G4. If you absolutely MUST have the smaller screen, then you want a used Galaxy S4 or S5, so long as they aren't AT&T devices.
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I guess I should have made it clear too that flagships, latest and greatest wasn't necessary. I'm happy with the speeds my older HTC ONE X and HTC ONE Mini supply. But closing in on 50 years old, my eyes and the Mini's screen don't get along so well anymore.

If you have bad eyesight, a bigger screen can be a godsend.

Strephon Alkhalikoi said:
If you have bad eyesight, a bigger screen can be a godsend.
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Exactly. I need a bigger screen but a smaller phone because my hands can't reach around my HTC ONE Mini. Sometimes it sucks being 5'4". LOL

IRBent said:
Exactly. I need a bigger screen but a smaller phone because my hands can't reach around my HTC ONE Mini. Sometimes it sucks being 5'4". LOL
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I would not recommend someone buying the S4 anymore. It was and still is a great phone, but newer models are just way better. The battery life is to short with the standard battery.
Based on your preferences I would recommend one of the following:
- LG Nexus 5
- Oneplus one
- Motorola X Play
But then again, maybe they are to big for you. The LG is the smallest but doesn't have a sd slot.

Lennyz1988 said:
Based on your preferences I would recommend one of the following:
- LG Nexus 5
- Oneplus one
- Motorola X Play
But then again, maybe they are to big for you. The LG is the smallest but doesn't have a sd slot.
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Amazing discovery by me just now. Yes, I've seen folks here talk about the brand OnePlus but I didn't know who or what OnePlus was until just now. I used to keep up with all things electronics related, reading review sites and forums like this. 10 years ago or so a DVD manufacturer named OPPO was the talk. Excellent brand but unheard of. I just learned that OnePlus is a company started by an OPPO founder. I'm so out of the loop.

Want to move from Sprint to T-Mobile... too much info, need short answer

I'm kind of newb at this S7 stuff, I'm more of an HTC guy. Yesterday, I bought an unlocked G930P (sprint) and am not sure, but think I learned that normally, people don't change out the ROMs to use a different carrier, they simply unlock the phone and live with the old carrier's bloatware. I started reading up, and first learned that TWRP apparently isn't available on a Snapdragon processor, so the G930A, G930P, etc, aren't candidates for TWRP. At first, I was kind of dismayed. Then, I found the G930U ROM and on a whim, I tried punting the G930U ROM to the G930P. I bought the phone off craigslist, and he said he didn't know where HE got it from, but it was unlocked. Anyhow, the phone took the rom without a hitch and now it looks like a U model...
My goal: Go with T-Mobile. Use Wi-Fi calling. Eventually have Nougat. Remove bloatware, but possibly keep some nice T-Mobile add-ons, if any, because I don't have their service yet (I hated ATT's crapload of stuff). Note this isn't specifically a "TMobile" question, substitute your carrier of choice for the questions...
Get to the damned question, you say? Ok, here goes:
1. I'm not going to ask any "do these bands work" when moving from a P model to T mobile. You guys seem to fight about that stuff until you can't type any longer. I'm going to assume what whatever bands work, that's what I get. Unless I get a T-Mobile specific phone.
2. But I will ask this: do the over the air bands it uses depend on the baseband ROM that is on the device? This is something I can't figure out.
3. I heard T-Mobile uses an updated boot kernel (3.0?) and ATT & others use an older boot kernel, and that if I move to T-Mobile boot kernel, I can't go back to any of the older ones. This process I seriously don't understand. Can I run a T-Mobile OS (or any OS) while using an older boot kernel ROM? I would think NO, right?
4. I don't like all of Carrier X's bloatware. I'd rather use a stripped down, cleaner ROM. I guess there are apps for that, but is it cleaner to do it with a stripped down generic ROM that I see floating around?
6. Speaking of ROM's - I saw a lot of Xetheros or whatever ROM's floating around, but it seems like there aren't any for the snapdragon-based ones. Is this true? The posts on this site don't really talk much about the snapdragon-based phones and why there aren't any ROMs for them, and why it won't work, and what, if anything, is being done to get around this. I guess the G930U is Samsung's answer to that, and allows fooling around with roms, but will the other phones ever be actually rom-able, or should I ditch this G930P and actually buy a G930U? Now that my phone THINKS it's a G930U, did that get me around some weird barrier and NOW I can update other funky roms intended for a G930U?
I'm considering selling the G7 I just got and going from a G930F (now that I'm a bit wiser). Any common sense why not to do that? I already HAVE an ATT G7 (not the sprint one I just bought), but it has a "bad signal". It gets only about 1 bar indoors, on a good day. I took it to a repair facility and they said, "nothing wrong with the antenna, it's your mainboard, don't bother just buy a new phone". Anybody have any advice on that?
thanks

BroncoBilli said:
I'm kind of newb at this S7 stuff, I'm more of an HTC guy. Yesterday, I bought an unlocked G930P (sprint) and am not sure, but think I learned that normally, people don't change out the ROMs to use a different carrier, they simply unlock the phone and live with the old carrier's bloatware. I started reading up, and first learned that TWRP apparently isn't available on a Snapdragon processor, so the G930A, G930P, etc, aren't candidates for TWRP. At first, I was kind of dismayed. Then, I found the G930U ROM and on a whim, I tried punting the G930U ROM to the G930P. I bought the phone off craigslist, and he said he didn't know where HE got it from, but it was unlocked. Anyhow, the phone took the rom without a hitch and now it looks like a U model...
My goal: Go with T-Mobile. Use Wi-Fi calling. Eventually have Nougat. Remove bloatware, but possibly keep some nice T-Mobile add-ons, if any, because I don't have their service yet (I hated ATT's crapload of stuff). Note this isn't specifically a "TMobile" question, substitute your carrier of choice for the questions...
Get to the damned question, you say? Ok, here goes:
1. I'm not going to ask any "do these bands work" when moving from a P model to T mobile. You guys seem to fight about that stuff until you can't type any longer. I'm going to assume what whatever bands work, that's what I get. Unless I get a T-Mobile specific phone.
2. But I will ask this: do the over the air bands it uses depend on the baseband ROM that is on the device? This is something I can't figure out.
3. I heard T-Mobile uses an updated boot kernel (3.0?) and ATT & others use an older boot kernel, and that if I move to T-Mobile boot kernel, I can't go back to any of the older ones. This process I seriously don't understand. Can I run a T-Mobile OS (or any OS) while using an older boot kernel ROM? I would think NO, right?
4. I don't like all of Carrier X's bloatware. I'd rather use a stripped down, cleaner ROM. I guess there are apps for that, but is it cleaner to do it with a stripped down generic ROM that I see floating around?
6. Speaking of ROM's - I saw a lot of Xetheros or whatever ROM's floating around, but it seems like there aren't any for the snapdragon-based ones. Is this true? The posts on this site don't really talk much about the snapdragon-based phones and why there aren't any ROMs for them, and why it won't work, and what, if anything, is being done to get around this. I guess the G930U is Samsung's answer to that, and allows fooling around with roms, but will the other phones ever be actually rom-able, or should I ditch this G930P and actually buy a G930U? Now that my phone THINKS it's a G930U, did that get me around some weird barrier and NOW I can update other funky roms intended for a G930U?
I'm considering selling the G7 I just got and going from a G930F (now that I'm a bit wiser). Any common sense why not to do that? I already HAVE an ATT G7 (not the sprint one I just bought), but it has a "bad signal". It gets only about 1 bar indoors, on a good day. I took it to a repair facility and they said, "nothing wrong with the antenna, it's your mainboard, don't bother just buy a new phone". Anybody have any advice on that?
thanks
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All U.S. models are built the exact same and will all accept each others firmware if done right , so any unlocked s7 you put the U firmware will essentially be a g930u other than the number stamped on the back , I dont believe the U firmware supports wifi calling or VOLTE , There is a t-mobile nougat firmware floating around if you want to try that , your att g7 if it has a hardware issue should be under warranty but if your using it with a different carrier I would flash the appropriate firmware to it and see if that fixes you signal issue and if not put it back to stock and call Samsung , as far as switching from the international model , Well i bought a international edge as soon as they release and it took a crap on me within 4 months and I was unable to warranty it , that was my only issue with using a international model but also i dont think you can get wifi calling on those either . hope that helps
edit* and yes the bands are dictated by the rom , U firmware opens all of them otherwise carrier roms unlock specific , and T-mobile nougat dowgrade back to MM will be dictated by the baseband , I know the Sprint nougat can be downgraded but not T-mobile for sure

goonygugle said:
All U.S. models are built the exact same and will all accept each others firmware if done right , so any unlocked s7 you put the U firmware will essentially be a g930u other than the number stamped on the back , I dont believe the U firmware supports wifi calling or VOLTE , There is a t-mobile nougat firmware floating around if you want to try that , your att g7 if it has a hardware issue should be under warranty but if your using it with a different carrier I would flash the appropriate firmware to it and see if that fixes you signal issue and if not put it back to stock and call Samsung , as far as switching from the international model , Well i bought a international edge as soon as they release and it took a crap on me within 4 months and I was unable to warranty it , that was my only issue with using a international model but also i dont think you can get wifi calling on those either . hope that helps
edit* and yes the bands are dictated by the rom , U firmware opens all of them otherwise carrier roms unlock specific , and T-mobile nougat dowgrade back to MM will be dictated by the baseband , I know the Sprint nougat can be downgraded but not T-mobile for sure
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The U firmware does support WiFi calling and VoLTE on T-Mobile.

myphone12345 said:
The U firmware does support WiFi calling and VoLTE on T-Mobile.
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I guess us AT&T users just done get them features =/ , is it enabled or do you have to do something to enable those features ?

goonygugle said:
I guess us AT&T users just done get them features =/ , is it enabled or do you have to do something to enable those features ?
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I don't believe those features are supported on AT&T (probably at AT&T's own request). Perhaps that might change in the Nougat version but I wouldn't bet on it.