Cinci Bell SGH T999 Compatibility ?? - T-Mobile, Samsung Galaxy SIII

Greetings! I am a new SGH-T999 owner, not through T-Mobile but through Cincinnati Bell. My previous device is the Sprint GS3, which I Rooted, Flashed, etc extensively, so I have some familiarity with this stuff, but there are some differences between the 2 devices that I have questions about.
My new device is a Cincinnati Bell SG3 SGH-T999 with T999UVDLJA stock ROM:
Is it reasonable to believe this is a T-Mobile variant and I can follow procedures and use ROMs listed for SGH-T999? For example, any reason I can not use the some of the preRooted ROMs, root66 or the Unified Kit as long as I pick the SGH-T999/UVDLJA?
Thanks in advance for your help!
jay

JAY28W said:
Greetings! I am a new SGH-T999 owner, not through T-Mobile but through Cincinnati Bell. My previous device is the Sprint GS3, which I Rooted, Flashed, etc extensively, so I have some familiarity with this stuff, but there are some differences between the 2 devices that I have questions about.
My new device is a Cincinnati Bell SG3 SGH-T999 with T999UVDLJA stock ROM:
Is it reasonable to believe this is a T-Mobile variant and I can follow procedures and use ROMs listed for SGH-T999? For example, any reason I can not use the some of the preRooted ROMs, root66 or the Unified Kit as long as I pick the SGH-T999/UVDLJA?
Thanks in advance for your help!
jay
Click to expand...
Click to collapse
Hey Jay,
As a former CBW user, I can say that you can flash TMo things and be fine. All you have to do is adjust the APNs from TMO to CBW. Go to the CBW support page, here is a link directly to it.
I used to have a Motorola through CBW and it borked out on me and they gave me a Vibrant as a replacement. I used my thumbnail to scrape off the Cincinnati Bell Wireless logo only to find a T-Mobile logo under the glass. I called bafoonery and then started to flash ROMs like it was my J.O.B.
A few things I suggest is to make a Nandroid of the stock CBW ROM (probably overwritten with scripts from a company called Ultramobile) and then put it on your PC just in case you have some warranty issues down the line. Also, if you ever need anything locally, just hit me up. I am pretty savvy at this and sometimes another set of eyes help.
Wood
ps- I would be intersted to know what your SpeedTest readings are if you could share them. Since we are in the same city and CBW and TMo share bandwidth, I would like to see the difference in speeds.

Woody said:
Hey Jay,
As a former CBW user, I can say that you can flash TMo things and be fine. All you have to do is adjust the APNs from TMO to CBW. Go to the CBW support page, here is a link directly to it.
I used to have a Motorola through CBW and it borked out on me and they gave me a Vibrant as a replacement. I used my thumbnail to scrape off the Cincinnati Bell Wireless logo only to find a T-Mobile logo under the glass. I called bafoonery and then started to flash ROMs like it was my J.O.B.
A few things I suggest is to make a Nandroid of the stock CBW ROM (probably overwritten with scripts from a company called Ultramobile) and then put it on your PC just in case you have some warranty issues down the line. Also, if you ever need anything locally, just hit me up. I am pretty savvy at this and sometimes another set of eyes help.
Wood
ps- I would be intersted to know what your SpeedTest readings are if you could share them. Since we are in the same city and CBW and TMo share bandwidth, I would like to see the difference in speeds.
Click to expand...
Click to collapse
Wood... Thanks for the info. Really appreciate it and will get back to you with the speed results.
jay

Thanks for making my day Woody, Just picked my S3 up today in Eastgate at the CBW Store , good to see some local users on here, cant wait to get this thing flashed

Related

I-747m and I-747 question

OK my sister in law and her fiance bought gs3s yesterday from att here in Louisiana USA.
One is i-747 and one is i-747m, now I did some research and figured out the "M" is the Canadian version per say.
Now they are letting me go flash happy with them I've found ROMs and rooting etc but I've seen issues with modems and etc maybe....
But since they are for sure USA phones does it really matter on what I flash? Or do I have to make sure the "M" gets special attention?
Sorry for the longevity of this just trying to be precise for its not my personal phones lol
Is that a hemi? No silly its Paranoid Android!
EVO 4G LTE S-OFF;-]
reeher3287 said:
OK my sister in law and her fiance bought gs3s yesterday from att here in Louisiana USA.
One is i-747 and one is i-747m, now I did some research and figured out the "M" is the Canadian version per say.
Now they are letting me go flash happy with them I've found ROMs and rooting etc but I've seen issues with modems and etc maybe....
But since they are for sure USA phones does it really matter on what I flash? Or do I have to make sure the "M" gets special attention?
Sorry for the longevity of this just trying to be precise for its not my personal phones lol
Is that a hemi? No silly its Paranoid Android!
EVO 4G LTE S-OFF;-]
Click to expand...
Click to collapse
I'm in Canada so I have the i747m and I've flashed AT&T Roms with no problems. When I do flash AT&T Roms though my phone becomes branded as an AT&T model(i747) but other than that nothing changes. As always make a backup and happy flashing.
Sent from my SAMSUNG-SGH-I747 using xda premium
im also in Canada and i have the i747m. The AT&T Roms work fine.
Thank y'all, I was pretty sure it wouldn't be a big deal, but again not my personal phones so I wanted a triple reassurance
Is that a hemi? No silly its Paranoid Android!
EVO 4G LTE S-OFF;-]
Help!
Hi, im from Mexico i bought this cellphone in Telcel, but I want to install another firmware(AT&T, Rogers, etc), My question is;
Can something go wrong if I install any one of those updates?
Aditional information
Android 4.1.1
yes.
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[Q] Using a T999 (Tmo) as a I747(AT&T)

I currently have a Galaxy S3, running rooted stock ICS for Tmobile - and I would like to switch over to ATT and keep the same phone, just flash the ATT JB stock firmware onto it (or a custom ROM), and whatever other flashes may be needed to make it work, or something along those lines. Is this even possible?
The only reason I would think it could work is that they are both GSM phones so the tech should essentially be the same right? And since it's rooted, switching the SIM shouldn't be an issue either, as I have done so when I am travelling.
Or are there other major diffs between the 2 s3's that I am missing which make this an impossible.
I have a friend who is looking to buy a new S3 from ATT, and I would just as soon sell him mine with their stock stuff on there if they are basically the same.
Many thanks in advance to any who can help shed light on this.
U have complete wrong idea brother. You cant just flash att s 3 rom on tmobile s 3.
Find some att based rom for tmobile s3 . i think we have some.
Its almost same hardware but not same network antenna. So you cant run att 4g on it.
Simply dont flash att rom on it unless its says for tmobile.
bikrame said:
U have complete wrong idea brother. You cant just flash att s 3 rom on tmobile s 3.
Find some att based rom for tmobile s3 . i think we have some.
Its almost same hardware but not same network antenna. So you cant run att 4g on it.
Simply dont flash att rom on it unless its says for tmobile.
Click to expand...
Click to collapse
I always thought that Tmo (i was actually told this by tech support once) shares antennas/repeaters with ATT... so I guess they are just piping the 4G through a diff frequency or something, and the antenna isn't tuned to pick it up. damn.
are there any carriers it WILL work with?
mikewikkid said:
I always thought that Tmo (i was actually told this by tech support once) shares antennas/repeaters with ATT... so I guess they are just piping the 4G through a diff frequency or something, and the antenna isn't tuned to pick it up. damn.
are there any carriers it WILL work with?
Click to expand...
Click to collapse
The T999 supports at&t's 3G, just not their LTE (T999 doesn't support LTE period).
What was being told to you is don't flash an at&t baseband (radio), recovery, or full ROM to the phone or you risk a brick. Any of the ROMs marked *AROMA* have multi-carrier compatibility, you just choose the underlying device.
mikewikkid said:
I currently have a Galaxy S3, running rooted stock ICS for Tmobile - and I would like to switch over to ATT and keep the same phone, just flash the ATT JB stock firmware onto it (or a custom ROM), and whatever other flashes may be needed to make it work, or something along those lines. Is this even possible?
The only reason I would think it could work is that they are both GSM phones so the tech should essentially be the same right? And since it's rooted, switching the SIM shouldn't be an issue either, as I have done so when I am travelling.
Or are there other major diffs between the 2 s3's that I am missing which make this an impossible.
I have a friend who is looking to buy a new S3 from ATT, and I would just as soon sell him mine with their stock stuff on there if they are basically the same.
Many thanks in advance to any who can help shed light on this.
Click to expand...
Click to collapse
Sorry to say, but you are forgetting something, a stock rooted Tmobile Galaxy S3
is not compatible with the AT&T services as well as any of the AT&T roms.
You would need to UNLOCK the phone first before doing anything else.
Good Luck!
Thread belongs in Q&A, reported.
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Misterjunky said:
Sorry to say, but you are forgetting something, a stock rooted Tmobile Galaxy S3
is not compatible with the AT&T services as well as any of the AT&T roms.
You would need to UNLOCK the phone first before doing anything else.
Good Luck!
Click to expand...
Click to collapse
pardon my ignorance, but what is the diff between unlocking and rooting, and how can I go about doing it? Also, and this is an aside, the only way that i can find to change the IMEI of a T999 is by using an external box - there is no software-only method of doing this yet, correct?
re: unlocking
mikewikkid said:
pardon my ignorance, but what is the diff between unlocking and rooting, and how can I go about doing it? Also, and this is an aside, the only way that i can find to change the IMEI of a T999 is by using an external box - there is no software-only method of doing this yet, correct?
Click to expand...
Click to collapse
To put it into simple terms,
Rooting a phone allows YOU to make changes to the phone which includes flashing roms as well as
allowing apps which require root access to work on your phone which are available at the play store.
But rooting has nothing to do with AT&T or any other carriers.
Unlocking a phone allows the phone to communicate with different carriers like AT&T and others.
Your phone does not need to be rooted to work with different carriers, it only needs to be Unlocked.
Also once the phone is unlocked you would need a AT&T Sim card for it to work.
Even an Unlocked Galaxy S3 will not work on AT&T unless you have a AT&T sim card.
There is absolutely no reason to change IMEI.
If you want to find out more about Unlocking, here is a link: https://www.google.com/search?q=unl...96,d.cGE&fp=db8d96ed93be75f0&biw=1017&bih=490
Check out the videos and articles.
Good Luck with the phone.
mikewikkid said:
pardon my ignorance, but what is the diff between unlocking and rooting, and how can I go about doing it? Also, and this is an aside, the only way that i can find to change the IMEI of a T999 is by using an external box - there is no software-only method of doing this yet, correct?
Click to expand...
Click to collapse
This is what you need, a SIM Unlock - and it happens to be rather easy on the S3.
http://forum.xda-developers.com/showthread.php?t=2023709 :good:
they are right. you need to unlock your phone. if you go into a store or call customer care they should be able to help you out with unlocking it. i used to work for tmobile and i remember unlocking a few peoples phones.

Non-Windmobile Note ll. Please.

Hi
I don't know if I am asking in the right place but if someone knows the answer I would really appreciate it.
I found a good deal on a Note ll that would save me a lot of money, only thing is I'm with Windmobile/Canada (which uses 1700/2100 frequency/bands and AWS network similar to T-Mobile in the USA as some of you know) but the phone isn't (works with Rogers, Bell, Fido...).
Now, I'm just dying to know, is there ANYTHING I can do to make the phone work with Wind? I've read and read and read I can't find a definitive answer. Some people selling Note ll phones on Craigslist claim their phones work with any carrier including Wind or Mobilicity. But some people say no way in hell that's possible.
So, please, can someone give me an answer to my question? Yes or no?
Thanks.
Please read forum rules before posting
Questions and help issues go in Q&A and Help sections
Thread moved
Thank you for your cooperation
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Electroman365 said:
Hi
I don't know if I am asking in the right place but if someone knows the answer I would really appreciate it.
I found a good deal on a Note ll that would save me a lot of money, only thing is I'm with Windmobile/Canada (which uses 1700/2100 frequency/bands and AWS network similar to T-Mobile in the USA as some of you know) but the phone isn't (works with Rogers, Bell, Fido...).
Now, I'm just dying to know, is there ANYTHING I can do to make the phone work with Wind? I've read and read and read I can't find a definitive answer. Some people selling Note ll phones on Craigslist claim their phones work with any carrier including Wind or Mobilicity. But some people say no way in hell that's possible.
So, please, can someone give me an answer to my question? Yes or no?
Thanks.
Click to expand...
Click to collapse
Yes, it is possible. There is an unlock method before upgrading to 4.1.2. When the Note II came out with 4.1.1, there is a method used (go to the general forums to find more about this) without rooting the device.
If I were you, though, I would not trust online purchases of the Note II. Some people claim it stolen after you buy it so they get compensation for it if they have insurance for their phone.
Sent from my SGH-T889V using xda app-developers app
Caveat emptor. There are stolen devices out there, and fraudulent sellers.
With this disclaimer out of the way, your sellers with I317Ms claiming they'll work on Wind and Mobilicity have simply applied the mod outlined in this thread which you could do yourself.
If I were to buy another Note 2 via classifieds now, I'd pick a locked I317M (I'd avoid a locked BMA3 running T889V due to its modem-related bootloop issues), flash its initial release modem with Odin, unlock, update, and apply the AWS mod. (Granted I'm using Virgin Mobile, but having AWS could come in handy stateside with a T-Mobile prepaid SIM.)
Thanks kennyglass for moving my question to the right place. I wasn't sure where to ask because I'm not a frequent user of this site.
Thanks a million to Crinkypops and Darkshado for answering my question. I appreciate that. The good news is that now I know it is possible to make the phone work on an AWS network. The bad news is I have no clue how to do any of that stuff myself. I have zero experience or knowledge in this stuff, which means l'll probably have to get someone else with the necessary expertise to do this for me.....if l can find one.
Now a couple of things, if I get a new phone (factory unlocked) and it's already 4.1.2, would it be possible to change it to the older 4.1.1 ?
Is doing all the stuff you guys told me about involve rooting or whatever? I really don't want to mess up the phone with changing all kinds of things on it because I don't want to get stuck without a phone if something goes wrong and like I said I don't know anything about this stuff.
So, what if I buy a phone that was made to work with Wind or T-Mobile, would it be possible to modify it to make it work with other companies too? I really don't know why things have to be this complicated.
You have to start somewhere, it'll take a fair amount of reading, but it can be done.
Aside from their previous Nexus models, as of writing these lines, there's no such thing as a "factory unlocked" phone for Samsung Canada. All the SIM-unlocked devices you encounter were sold through carriers, and originally locked. Some sellers might also have grey market imports that were indeed never locked, but that's beyond the scope of this discussion, since we're interested in the North American variants of the Note 2.
You can downgrade the ROM back to 4.1.1 on all Canadian Note 2 variants, although I wouldn't try it on the T889V because it's been known to cause issues. Seems like there's a bug specific to this model.
You said you didn't want to be stuck without a phone if things went wrong, how about having a backup phone? The nice thing with two Android phones is that it's easy to keep their contacts and calendars synchronized.
The downgrade-to-unlock procedure can be done entirely using official (leaked) Samsung ROM images and tools, and does not require root. Done properly it will not trip the custom flash counter.
The AWS mod uses hidden factory built-in menus with leaked (QPST/QXDM) or reverse engineered tools (NV reader-writer / CDMA Workshop / EFS Pro). Again, it doesn't involve root and won't trip the flash counter. I317Ms that have had the AWS HSPA mod applied still work with their original carriers as before.
Thanks again, darkshadow.
Quick question. How do I know if the phone is I317M or BMA3 and running T889V ? Is l317M or BMA3 written on the back (once the cover is removed)?
Electroman365 said:
Thanks again, darkshadow.
Quick question. How do I know if the phone is I317M or BMA3 and running T889V ? Is l317M or BMA3 written on the back (once the cover is removed)?
Click to expand...
Click to collapse
You can check it at the bottom of the box with the IMEI. I would advise you to actually go on the phone, though, and go to settings>about phone and then you'll see the IMEI, baseband, and model number in there. Make sure that the IMEI matches with the box. Some people steal phones and then just buy boxes so beware.
Good luck on your purchase!
Sent from my SGH-T889 using xda app-developers app
Crinkypops said:
You can check it at the bottom of the box with the IMEI. I would advise you to actually go on the phone, though, and go to settings>about phone and then you'll see the IMEI, baseband, and model number in there. Make sure that the IMEI matches with the box. Some people steal phones and then just buy boxes so beware.
Good luck on your purchase!
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
Thanks, crinkypops. I appreciate it and thanks for the info. If I buy a used phone I'll ask for the receipt and the box too.
Electroman365 said:
Thanks, crinkypops. I appreciate it and thanks for the info. If I buy a used phone I'll ask for the receipt and the box too.
Click to expand...
Click to collapse
Just trying to help a fellow Canadian PM me how the purchase goes.
Sent from my SGH-T889 using xda app-developers app
Thanks again, crinkypops. I will. I first have to find out if the phone the guy can get me is an i317m and I'll go from there.
Well, looks like the only option I have is to buy a used Note II on CL. My "friend" who was going to hook me up with a new phone through a buddy of his is an unreliable scum bag of a "friend" and I'm not going to bother with him any more.
So now I'm looking on CL but I'm trying not to buy any phone unless the seller has the sales receipt to make sure I'm not buying something that's stolen.However, some sellers don't want to give the receipt -although willing to show it- because it has their personal information and my question is, would the receipt have the ID # (if that's what it's called) of the particular phone printed on it? If the phone is still under warranty, would it be possible to get it repaired (if there's a need) without a receipt?
Any other advice on how to avoid getting scammed buying a phone on CL?
Thanks.
Which city are you from? I am in vancouver and might consider selling if the price is right. I have the box and receipt. Phone is rooted running x14 with wind. Its still locked though.
Sent from my Nexus 7 using xda app-developers app
I don't know what the problem is. I tried to send private messages to vseslija and crinkypops but I don't think they went through.
vseslija, was your phone purchased from Wind?
---
I'm a bit confused. Some guy is telling me I need to get the T889 and not the i317m if I want to use my phone with Wind, but from the answers here and from what I see on CL that can't be correct. Am I right? He says the i317m will be slow and unstable. Speed of T889 vs i317m : 42 mbps vs 21 mbps. Any thoughts?
Thanks.
Yup mine was purchased directly from wind.
That guy is bsing you
Sent from SGH-T889v Canadian Wind Mobile
Hmm, the guy isn't completely wrong, but he's not completely right either...
The (Canadian) T889V and I317M as well as the (US) T889 and I317 are all capable of 42 Mbps DC-HSPA. The 21 Mbps numbers you might have seen are due to AT&T's HSPA network not supporting dual channel operation, unlike most (all?) Canadian HSPA networks.
The T889 and T889V work on AWS HSPA carriers like Wind, Mobilicity, Videotron or T-Mobile USA out of the box. (The T889V won't work on LTE if you decide to switch back to Robellusfivirkoo, but that's another story, and there's also a way to enable that.)
The I317 and I317M won't, but are very easy to modify in order to enable the AWS HSPA you'll need. There have been a handful of reports of flaky connections on the AWS mod thread, but the ratio is so low that I'm lead to wonder if: there's an undocumented hardware revision for which the mod won't work, their phones or cellular networks had other issues, or if those trying to apply it did something wrong along the way.
I haven't checked Kijiji or CL for phones in a while, but I do recall the T889V commanding a slight premium over the I317M at one point because they were rarer.
Thanks again guys for replying. Man this has given me a lot of headache. Get a Wind Note and get it over with or get an i317m and mod it (have someone do it for me) to get it to work with AWS? I guess listening to what you guys had to say, plus asking a local cell phone shop is making me feel confident that it IS possible to get an i317m work on the AWS without any problems. Now, I think I'm going to take my chances and look for one on CL. In the worst case scenario if for some reason it gives me a headache I'm assuming I can have the process reversed (restore it to its original system) and I'll just sell it and get me a Note that was made specifically for Wind.
To those who helped me and answered my questions, THANK YOU VERY MUCH.
Just noticed the i317. So I guess there's an i317 and an i317m. Did some reading but the only difference I can see is that the "M" model is for the Canadian market. Am I right? Does an i317 work in Canada just fine?
The AT&T I317 should work just fine. But, (there's always one, isn't it?) its baseband has some "annoying" limitations (RAT lock is the term you'll want to search) that prevent you from toggling between network modes easily, i.e. you can't switch it between GSM only, WCDMA only, GSM/WCDMA/LTE like you can the Canadian model. Plus there are all the import related considerations you have to keep in mind (taxes and brokerage fees), plus buying something expensive sight-unseen.
The other differences are more benign and software-related. Nothing that can't be fixed with some ROM-flashing, like non-Robellusfivirkoo CSC settings.
Darkshado said:
The AT&T I317 should work just fine. But, (there's always one, isn't it?) its baseband has some "annoying" limitations (RAT lock is the term you'll want to search) that prevent you from toggling between network modes easily, i.e. you can't switch it between GSM only, WCDMA only, GSM/WCDMA/LTE like you can the Canadian model. Plus there are all the import related considerations you have to keep in mind (taxes and brokerage fees), plus buying something expensive sight-unseen.
The other differences are more benign and software-related. Nothing that can't be fixed with some ROM-flashing, like non-Robellusfivirkoo CSC settings.
Click to expand...
Click to collapse
Thanks for the reply and the info. I just got an i317m. Finally.

[Q] Help to root a Straight Talk GSIII?

Hi all,
I have been guided to this section regarding my Straight Talk Samsung Galaxy SIII because it's model number indicates it operates through Sprint. It is a SCH-S960L. I have had it for about a week. Came with 4.1.2. Does anyone have any information on how I can root this phone? I have searched everywhere and can't find any solid info about it.
I thank you ahead for any guidance you can give!
Lisa
Rooting for all S3 is pretty much the same. The thread http://forum.xda-developers.com/showthread.php?p=38172219 has almost all the answers to questions you will have. #2 thing mentioned is rooting it will take you to the guide with video just watch the video several times read everything it's rather simple in less than 5 minutes you will have it rooted and custom recovery installed.
Sent from the future via Xparent Green Tapatalk 2
Thanks for the response, Ed. I haven't heard much other info about rooting this, so I appreciate the info. Really don't want to brick it, but I also am anxious to get rooted and set it up the way I want it....
Lisa
Sent from my SCH-S960L using Tapatalk 4 Beta
i beleive that youre phone is probably more related to the t-mobile variant since straight talk runs off of tmobile... check the model number under the battery
eisawi99 said:
i beleive that youre phone is probably more related to the t-mobile variant since straight talk runs off of tmobile... check the model number under the battery
Click to expand...
Click to collapse
Actually I think ST runs off Sprint. This was what I was told. I have this model as well. Please correct me if I'm mistaken. There isnt much info around about the SCH-S960L
Sent from my SCH-S960L using xda app-developers app
you might be right but i remember a commercial saying that you get t mobiles national coverage... but you may be right
ST runs on the Sprint network.
actually, i looked it up and it appears it uses all major carriers... its a part of tracfone which makes it a subsidiary of a subsidiary... but tracfone has contracts with all major carriers
I was able to confirm this phone does run through Sprint, and got it rooted using Skunkape1's excellent rooting directions in the Sprint SG3 forum...
Sent from my SCH-S960L using Tapatalk 4 Beta
did you rom it????????
ScrapHappy said:
I was able to confirm this phone does run through Sprint, and got it rooted using Skunkape1's excellent rooting directions in the Sprint SG3 forum...
Sent from my SCH-S960L using Tapatalk 4 Beta
Click to expand...
Click to collapse
Yes the S3 through straight talk runs on sprint.... if you rooted, did you use a rom?
I bought my wife and daughter these phones through straight talk. The box had the red verizon map on it, and the network type is LTE/ cdma. I'm on regular verizon and can get LTE, but they can't.They stay on 3g most of the time. Sucks. But I am curious if you were able to find a rom to run after you rooted it? I'm not really satisfied with straight talk service. Family seems to have a lot more dropped calls than me. Anything that can make these phones more bearable would be nice.
eisawi99 said:
i beleive that youre phone is probably more related to the t-mobile variant since straight talk runs off of tmobile... check the model number under the battery
Click to expand...
Click to collapse
Straight Talk doesn't "run" on T-mobile. Straight Talk is a Tracfone service, which depending on the specific device, runs on a variety of towers through a variety of companies. Verizon and At&t are the most commonly used towers.
Well, I finally gave up and put my family back on Verizon. Weird thing was when vz sales rep was swapping numbers, he put the straight talk phone info into the computer and it said the phone was using sprint and some verizon variant network for data.
Was wondering if anyone has ever found a rom to run on this phone. Friend wants the phone, but rooted.
moejoe88 said:
Was wondering if anyone has ever found a rom to run on this phone. Friend wants the phone, but rooted.
Click to expand...
Click to collapse
I'm running everything (flashaholic) on my S960L. After I bricked I got it back to life and have been happily flashing since.
And yes, it does run off Sprint networks
Sent from my N800 using XDA Premium 4 mobile app
Yeah, I'll probably just sell it to him and be done with it. It's a shame straight talk didn't work out for me. Might have better coverage in a city. But where I live, it's crap.
Now on Verizon
The FIRST GS3 offered by Straight Talk WAS on the Sprint network. But after S/T got absolutely blasted by upset customers (and POTENTIAL customers) they finally pulled their heads out of their butts and now they offer a CDMA-V variant...that's VERIZON for those who don't know the codes. There is a code on the lower left corner of the packaging that will say CDMA-S (Sprint), CDMA-V (Verizon) and GSM which will be either T-Mobile or AT&T (not sure of the codes after the GSM as I'm not familiar with those, but the person in electronics would (should) know if you ask).
So now you can have one of the best phones on the market, behind only the S4, on Verizon's network. I got this phone the day after the Black Friday sales, and it still rang up at the sale price of $299. I was prepared to pay the regular price of $399 so you can imagine my surprise and delight when it rang up at the sale price. So what if it only has 3G. I constantly hear people complaining about this fact, so they can either have their 4G LTE on Sprint and get no coverage, or have a contract and pay 3 times what I pay, or have one of the best phones out there with 3G and $45 a month for everything unlimited on the best network with no contract. The choice seems obvious to me. And I'm an ex-Verizon contract customer. Our bill was just too high. I'm happy to pay more for a phone with no contract.
Now, hopefully somebody can answer my question...would it be the same process to root this phone as the one on the Sprint network? Is there any possibility you could screw up your phone with no chance of recovery? I would like to root my phone but I do not want to be in a situation where I'm looking at my phone with a blank screen and no way to recover, or it won't turn on or it changes to Japanese...etc...you get what I'm asking. If there's any risk I'm not going to do it, it just wouldn't seem worth it to me. But if it's something that it works or doesn't and no in between then I would like to try it. Thank you for any advice.
Wow! Great advice
edfunkycold said:
Rooting for all S3 is pretty much the same. The thread http://forum.xda-developers.com/showthread.php?p=38172219 has almost all the answers to questions you will have. #2 thing mentioned is rooting it will take you to the guide with video just watch the video several times read everything it's rather simple in less than 5 minutes you will have it rooted and custom recovery installed.
Sent from the future via Xparent Green Tapatalk 2
Click to expand...
Click to collapse
Wow! Top answer here. Too bad it was a complete fail for the straight talk version.

[Q] SGH i257M on US AT&T

Has anyone used the SGH-I257M on US AT&T?
As I understand, it has the bands for multiple networks. The reason for asking is AT&T is dragging their feet.
Info I got from AT&T was that it has enough roll outs for Christmas and are not going to bring out the S4 Mini until January. My contract is up, S3 & S4 are too big for a pocket, I ditched my S3, I'm using an S2 clocked at 1.7 and gutted, nice phone, but time for a new toy to play with. I'm tired of waiting on the 'Mini', but flashable US Basebands will be unavailable for some time so I'm hoping someone has done this. More specifically meaning the 'non branded' SGH i257M and a functional LTE band 17. TIA
systwk said:
Has anyone used the SGH-I257M on US AT&T?
As I understand, it has the bands for multiple networks. The reason for asking is AT&T is dragging their feet.
Info I got from AT&T was that it has enough roll outs for Christmas and are not going to bring out the S4 Mini until January. My contract is up, S3 & S4 are too big for a pocket, I ditched my S3, I'm using an S2 clocked at 1.7 and gutted, nice phone, but time for a new toy to play with. I'm tired of waiting on the 'Mini', but flashable US Basebands will be unavailable for some time so I'm hoping someone has done this. More specifically meaning the 'non branded' SGH i257M and a functional LTE band 17. TIA
Click to expand...
Click to collapse
If you get an unlocked SGH-I257M from Canada it will work for AT&T with LTE. I got one as an early Christmas gift for my girlfriend and it works no problem. I just put her 4G microSIM from her old phone (Pantech Burst) and set it up. The only thing I had to do was add the APN for AT&T 4G. Also, I believe it was the ChatON app that would not work in the US but it wasn't important.
EDIT: Also, a question I was thinking of as well is, if when the AT&T version comes out (or the firmware at least) could the AT&T I257 firmware be flashed on an I257M? That would minimize any issues from the phone's software..
wiisixtyfour said:
If you get an unlocked SGH-I257M from Canada it will work for AT&T with LTE. I got one as an early Christmas gift for my girlfriend and it works no problem. I just put her 4G microSIM from her old phone (Pantech Burst) and set it up. The only thing I had to do was add the APN for AT&T 4G. Also, I believe it was the ChatON app that would not work in the US but it wasn't important.
EDIT: Also, a question I was thinking of as well is, if when the AT&T version comes out (or the firmware at least) could the AT&T I257 firmware be flashed on an I257M? That would minimize any issues from the phone's software..
Click to expand...
Click to collapse
I appreciate the reply. That is good to know. Yeah, ChatON is of no interest. As for flashing, There are multiple reports that the 9195 ROM flashes OK on the M's, 9195 also adds the FM radio that is not given functionality in the M's but restored with the 9195 OS so I would assume the AT&T version should be no problem provided AT&T isn't pulling another non standard hardware version as they have in the past with some phones. (FCC filings don't indicate that) AT&T seems to have developed a phobia in recent years about their phones being retrofitted with new OS's. Also likely they are waiting for 4.3 or a Knox implementation in the deluded belief that it is secure. Thanks again for the heads up on function, looks like the price from Canada isn't too bad right now.
wiisixtyfour said:
If you get an unlocked SGH-I257M from Canada it will work for AT&T with LTE. I got one as an early Christmas gift for my girlfriend and it works no problem. I just put her 4G microSIM from her old phone (Pantech Burst) and set it up. The only thing I had to do was add the APN for AT&T 4G. Also, I believe it was the ChatON app that would not work in the US but it wasn't important.
EDIT: Also, a question I was thinking of as well is, if when the AT&T version comes out (or the firmware at least) could the AT&T I257 firmware be flashed on an I257M? That would minimize any issues from the phone's software..
Click to expand...
Click to collapse
Hi. Thank you for sharing this. I actually just bought a Canadian i257M as well and now I'm waiting for it to get shipped to me. Question; do the samsung media apps work while in the US? For example, media hub, video hub and music hub? I ask because i used to own a GS4 from att and I purchased a lot of media on those apps and would like to continue using them if possible on the GS4 mini if possible.
Much appreciated!
Eltahur said:
Hi. Thank you for sharing this. I actually just bought a Canadian i257M as well and now I'm waiting for it to get shipped to me. Question; do the samsung media apps work while in the US? For example, media hub, video hub and music hub? I ask because i used to own a GS4 from att and I purchased a lot of media on those apps and would like to continue using them if possible on the GS4 mini if possible.
Much appreciated!
Click to expand...
Click to collapse
You may have some disappointment, Samsung has switched to 'Samsung Hub' on the new phones, replacing the older Media hubs and interoperability suffers a lot. T-Mobile offers a Media Hub for their new phones, AT&T may as well since the Sammy app's leave so much behind. It's going to be a wait and see I suspect. With luck AT&T will have Media Hub apps instead of the newer Samsung replacements and all you will have to do is wait. It seems quite a few people have money tied up in the old system and that may keep it alive.
But other than that, all you need to get on line is write your carrier APN. The phone is turn-key as it is. I just got an 'M' and after gutting the OS, dropping in an APN and editing the Build Prop a little (not needed) it works great on US AT&T.
There are more and more of the i257M's turning up recently in the States and hopefully someone will be able to clarify the Media Hub issue more for you better than this.
Where are you guys getting unlocked 257Ms? I can't find anything on ebay and the internet suggests canadagsm may not be reputable.
Hi...wondering if you can help given you are on AT&T 4G LTE. My i257M arrived today from canadagsm and it appears rooted. Surprise, but maybe good. BTW...canadagsm handled this order ok, not great and not responsive, but they did deliver. Anyway so far so good, but I am also on AT&T 4G LTE and wondering how to edit the APN? Why? Right now I am only getting H+ connectivity. So wondering if there is a way to do this voa the hardware or only via software? Also, can you post the Build Prop? Lastly, due to rooted phones being disallowed on my company network I can only use a stock ROM.
Lastly, as I write this I ended up going into the boot ROM and which is not CWM and for the last 30 minutes and selecting install the volume up, the screen shows DOWNLOADING, DO NOT TURN OFF TARGET!! However, I am not aware I am downloading anything and seeing this screen is a bit scary. I may mess with this a little more by the time anyone gets a chance to respond, so we will see.
Thanks in advance, malloy0
systwk said:
You may have some disappointment, Samsung has switched to 'Samsung Hub' on the new phones, replacing the older Media hubs and interoperability suffers a lot. T-Mobile offers a Media Hub for their new phones, AT&T may as well since the Sammy app's leave so much behind. It's going to be a wait and see I suspect. With luck AT&T will have Media Hub apps instead of the newer Samsung replacements and all you will have to do is wait. It seems quite a few people have money tied up in the old system and that may keep it alive.
But other than that, all you need to get on line is write your carrier APN. The phone is turn-key as it is. I just got an 'M' and after gutting the OS, dropping in an APN and editing the Build Prop a little (not needed) it works great on US AT&T.
There are more and more of the i257M's turning up recently in the States and hopefully someone will be able to clarify the Media Hub issue more for you better than this.
Click to expand...
Click to collapse
malloy0 said:
Hi...wondering if you can help given you are on AT&T 4G LTE. My i257M arrived today from canadagsm and it appears rooted. Surprise, but maybe good. BTW...canadagsm handled this order ok, not great and not responsive, but they did deliver. Anyway so far so good, but I am also on AT&T 4G LTE and wondering how to edit the APN? Why? Right now I am only getting H+ connectivity. So wondering if there is a way to do this voa the hardware or only via software? Also, can you post the Build Prop? Lastly, due to rooted phones being disallowed on my company network I can only use a stock ROM.
Lastly, as I write this I ended up going into the boot ROM and which is not CWM and for the last 30 minutes and selecting install the volume up, the screen shows DOWNLOADING, DO NOT TURN OFF TARGET!! However, I am not aware I am downloading anything and seeing this screen is a bit scary. I may mess with this a little more by the time anyone gets a chance to respond, so we will see.
Thanks in advance, malloy0
Click to expand...
Click to collapse
I just made a thread abouu this. Just picked up a i257m and on every kind of combination of rom I'm stuck at only h+. I spent a few hours on the phone with cs to figure out why after googling a few other cases similar to ours. Turns out att doesn't support unlocked phones so the account isn't setup to push lte. What others have done, and what I'm going to try to do tomorrow is pop the sim into an att phone thss can do LTE and set it up and switch back and it should follow.
Att were assholes and wouldn't setup a device on my sim temporarily to prove to me LTE worked on my account. We popped my dim into a display g2 that was getting LTE, and got only h+. So I told him to pop the display sim in mine to see if I can get LTE, it only triggered the LTE option in the settings but never popped up saying it was getting any.. Hmm
Edit: got lte working with a new sim! All works perfect on att!
voilsb said:
Where are you guys getting unlocked 257Ms? I can't find anything on ebay and the internet suggests canadagsm may not be reputable.
Click to expand...
Click to collapse
Just wanted to throw in an update, I took the risk and ordered a 257M from CanadaGSM. Minor hiccup with the webpage didn't forward my address to their credit card processor, but they sent me an e-mail and a paypal invoice, and shipped out the phone the same day I paid. Quick customer service response time via e-mail, too (as in within a few minutes). It works great on Straight Talk, but I don't live in an LTE area so I can't test that till this weekend.
It rooted easily, and now it's running PAC.
Edited to add some information.
voilsb said:
Just wanted to throw in an update, I took the risk and ordered a 257M from CanadaGSM. Minor hiccup with the webpage didn't forward my address to their credit card processor, but they sent me an e-mail and a paypal invoice, and shipped out the phone the same day I paid. Quick customer service response time via e-mail, too (as in within a few minutes). It works great on Straight Talk, but I don't live in an LTE area so I can't test that till this weekend.
It rooted easily, and now it's running PAC.
Edited to add some information.
Click to expand...
Click to collapse
Good news for CanadaGSM...I too was leery, but after a few emails and phone calls they stepped it up big time. For now I have retired the S5 mini in favor of a Nokia Lumia 520 for $65!! Woo-eeee!! It's a super smooth phone. Apps are a little limited, but still have found everything I need except "stay awake" with charging. as for the S4 mini on LTE? No luck at all and expect one of two things...1) it's a locked Rogers phone and I am on AT&T, thus they will not allow LTE or the phone is not truly LTE capable.
voilsb said:
... ordered a 257M ... It rooted easily ...
Click to expand...
Click to collapse
Can you post some detail about the rooting procedure that you used? I have not yet seen a complete procedure for the SGH-I257M.
malloy0 said:
Good news for CanadaGSM...I too was leery, but after a few emails and phone calls they stepped it up big time. For now I have retired the S5 mini in favor of a Nokia Lumia 520 for $65!! Woo-eeee!! It's a super smooth phone. Apps are a little limited, but still have found everything I need except "stay awake" with charging. as for the S4 mini on LTE? No luck at all and expect one of two things...1) it's a locked Rogers phone and I am on AT&T, thus they will not allow LTE or the phone is not truly LTE capable.
Click to expand...
Click to collapse
I'm running the i257m on att with lte,only hiccup I had was they gave a 3g sim instead of an lte one and it took three weeks to prove it to them!
---------- Post added at 01:01 AM ---------- Previous post was at 12:58 AM ----------
mdawdy said:
Can you post some detail about the rooting procedure that you used? I have not yet seen a complete procedure for the SGH-I257M.
Click to expand...
Click to collapse
Use the 9195 root method and 9195 roms, same phone just different lte bands.
What I did was use Odin to flash recovery then flashed the root kit then used the unlock app from the play store to be able to run att. Then I flashed my liquidsmooth and havent looked back!
I used Odin to flash philz touch recovery, then flashed the PAC nightly. Only issues so far are ROM related, like launcher preference and battery drain
Sent from my GT-I9195 using xda app-developers app

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