Develop Bugs

At&t galaxy s3 to T-Mobile help

I got my unlocked s3 so I can use it on T-Mobile and hate edge so I was wondering if flashing the blaze modem would allow me to get 4g like the at&t galaxy note did.
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Blaze is a .gs2, it would probably brick. I wouldn't risk it. If anything I'd try the t-mobile .gs3 radio.
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I need to know if someone has done this and gotten it to work the tmo gs3 modem if the blaze doesnt
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horr1blek1tten said:
I got my unlocked s3 so I can use it on T-Mobile and hate edge so I was wondering if flashing the blaze modem would allow me to get 4g like the at&t galaxy note did.
Sent from my Nexus 7 using Tapatalk 2
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I been thinking...instead of messing with all that and end up with a brick, why just not sell it on ebay and buy an actual Tmobile one or maybe trade with someone willing to. I would look at the selling price for an AT&T GS3 on ebay and how much would a Tmobile run and if it's not that much difference then pay the difference than end up with a possible brick. Plus I have read some forums where if you flash some things that are not meant for your phone you can even mess up the IME on your phone with no way to flash it back at the moment until someone comes up with a solution for it.

Not trying to be a jerk. Just a friendly reminder that this is not development related and needs to be in general or QA. I would repost there and report your thread to a moderator before the pitch forks come out.
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When I put my friends note to t mobile it was the modem you had to flash , if your set on doing it , read a bunch on ways to do the note WITHOUT a custom Rom then find the same files you use in that ( the modem and if I remember right there was one other thing ) then go to the t mobile section in the sgs 3 thread and ask for help finding those files , but do a lot of reading first cause it would be a shame to brick your awesome phone
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lessthanzach said:
Not trying to be a jerk. Just a friendly reminder that this is not development related and needs to be in general or QA. I would repost there and report your thread to a moderator before the pitch forks come out.
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I thought this was development?
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I'm also interested in getting HSPA+ 21.1 speeds on my unlocked AT&T GS3 on my tmobile network...any suggestions?

Jonnyredcorn said:
I'm also interested in getting HSPA+ 21.1 speeds on my unlocked AT&T GS3 on my tmobile network...any suggestions?
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buy the t-mobile version. it doesn't work hardware not supported

im looking into this as well, i had the att note and flashed the tmobile modem worked like a charm so now im looking to do same with s3. if i find anything ill let you know

I don't thonk it will work at all. Att's S3 is LTE, correct. Tmobiles is not. Two different hw radios used.
If you do try it please post your results for others!
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If a solution for this is found I'll definitely be buying a red GS3 soon.

Classick206 said:
If a solution for this is found I'll definitely be buying a red GS3 soon.
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I seriously wouldnt count on it. The two networks run on different technologies. Im pretty sure the hw is different due to this.
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Have you guys tried the radios in the dev section by wildchld? I'm not sure it will work either but maybe worth a try. It has a script that backs up current radio and you can revert back. Atleast on T-Mobile s3 it does. Just need to reflash the restore zip to go back to previous radio. Again try at your own risk. There's a huge chance you can brick your device.
http://forum.xda-developers.com/showthread.php?p=30355162
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Tmobile is reframing the network. Soon after this year att iphones will get 3g 4g from tmobile.just wait for.it
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DocHoliday77 said:
I don't thonk it will work at all. Att's S3 is LTE, correct. Tmobiles is not. Two different hw radios used.
If you do try it please post your results for others!
I don't think it matters if the Gs3 from T-Mobile doesn't have LTE, I used to have my Galaxy s2 skyrocket with LTE running on T-Mobile 3G/4G off a GS2 Hercules Modem.
Sent from my Samsung Galaxy S3 using XDA Premium HD app
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Then by all means, give it a shot. I have no problem being proven wrong on stuff like this!
Just remember that was a different phone. And tmobiles radio Im pretty sure was confirmed to NOT support LTE. So they are different.
I'm definately looking forward to hearing someones results after trying! Just do some research on the two radios, and make sure the sw modem is on the same partition for each phone. (I think it will be. But if its not you could end up with serious problems)
Good luck to whomever tries it!
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Probably won't, the T-Mobile phone is pentaband so it will run 3/4G on AT&T, but their version isn't. Try it though.
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jason4962 said:
Tmobile is reframing the network. Soon after this year att iphones will get 3g 4g from tmobile.just wait for.it
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T-Mobile doesn't have 4G. The iPhone will get HSPA.
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joshnichols189 said:
T-Mobile doesn't have 4G. The iPhone will get HSPA.
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Not yet they don't. But as he said tmobile is refarming their entire network in preparation for LTE rollout next year.
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Verizon jellywiz on t999

Im sure some one else is running this on our phone.I flashed it and has given me pretty good batery life. jb stock roms we have are great but I had to try this.apn was a bit difficult to set after that all good

Ummm...... what?
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Wait what ?
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So just curious u were able to flash a Verizon rom on your tmobile s3. Didn't have to change anything besides the apn?
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That's what it appears he is saying.
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Wouldn't be too surprising really. Aside from slightly different radios, aren't all the US variants (canadian too) virtually identical hardware-wise? It would stand to reason that they would carry the same partition layouts as well.
Though I wouldn't go flashing away without verification of that!
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My thoughts at least, I flashed a few at&t roms with no issues besides build.prop stuff. I'm with you on not flashing things though lol.
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Yes the baseband stayd the same .I was pretty excited been using it for a week.battery life is good screen is on top of the list then system.so far beside using hiapn for apn settings it has been really stable one or two reeboots that I can remember from restoring youtube a delete and market install fixed that.

How did you bypass the verizon network verification?or did it not say registering on the verizon network? I have flashed many Att, Sprint, and verizon roms, but most(if not all) of the verizon roms have a built in verifyer for their specific network.

Modems/Radios

Can one take s bell, rogers and flash an AT&T Modem/Radio in it and work like an AT&T?
Another words I will get all AT&T bands same at AT&T's?

No. I mean yes.
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???

Don't
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Why? Whats the big difference between the i747 & the i747M?

Heavy Metal said:
Why? Whats the big difference between the i747 & the i747M?
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The "M"
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So they can be used same AT&T on Bell canada and vice versa? Even unlocking a bell or even togers to use on Straight Talk ising an AT&T sim?

Some people have reported that flashing the wrong carrier's modem had wiped their IMEI.
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I'd avoid it especially since it probably won't make a world of difference even if the performance was different. If the hardware is perfectly identical, I'm sure it would work but I still wouldn't want to try it.
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DO NOT DO IT!!!!!!!!!!! or say bye bye to your IMEI
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Can you not just reinput your IMEI?

If you really feel like trying it, go ahead.
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Heavy Metal said:
Can you not just reinput your IMEI?
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Yea you can if you got a day to kill messing with your phone and all the programs.... jesh. We tell you not to and it seems like you are making excuses to do it... just save yourself the huge trouble and headache. And us too... don't do it.
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Ok i was just being curious if it would be a massive undertaking.

slow 4g

For the past few days my data has been real slow well when downloading it starts off at good speeds but after a few minutes it slows down big time and for it to go back to normal i have to switch off my data then on and repeat that process any ideas what it could be or how to fix it cled tmobile support they were no help thx

Give a little more info
Are you rooted?
If so, are you running stock?
Custom rom name if any
Baseband version?

Yes im rooted running wicked v10 tmobile baseband version t999uvlh2
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Well, how much data have you used? You could be getting throttled especially if you've used lots of data in short amount of time.
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bigfnfil said:
Yes im rooted running wicked v10 tmobile baseband version t999uvlh2
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And you have the unlimited data plan i assume?

Yes im on the unlimited plan and not sure about the throttling would have thought the tmobile rep would have mentioned that if that was the case
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bigfnfil said:
Yes im on the unlimited plan and not sure about the throttling would have thought the tmobile rep would have mentioned that if that was the case
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T999UVLH2 is your baseband version. Then i would try flashing the T999UVDLJC baseband and test it out.

There is a new mdm5 baseband out. Im sure you cant search and find it here.

I flashed wicked v10 on my friends tmo s3, were getting slow speeds as well. Gonna try a different radio
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I have the same problem in a certain part of Seattle where my hspa+ speed is around 4 - 10 kilobytes per second download..
Guess to many people using it

I don't think it's the rom itself. Try a different modem and report the findings. I'm on Wicked v10 in souther cali with latest modem and I'm getting great speeds. Can it be on tmobile end updating/refarming towers?
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Yeah i dnt know wat is wrong with it its been a few days now and same thing when i run a speedtest i get geood speeds but as far as downloading anything it starts good then goes down to like 650b and downloads always fail thx for the help tho
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Have you tried any of the other modems?
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No kind of new at this wouldnt no were to start open to any suggestions tho thx
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Click the link for Basebands/Modems thread in my sig. All flashable modems and a plethora of info about them is there.
Feel free to ask if you have questions. The thread is stickied in development if you need to find it later.
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Wow I was just trying to find out if others are having the same problem and Bam I see this. My download speeds start high then go slow. Hopefully it's the modem
I noticed it didn't start until I used the new T999UVDMD5
Edit: nope tried other modems and problem is still there
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Do you get different results during different times of day? Could be network traffic. Or if they're doing work on any towers it could also cause problems like that.
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DocHoliday77 said:
Do you get different results during different times of day? Could be network traffic. Or if they're doing work on any towers it could also cause problems like that.
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Indeed tmobile is upgrading their hardware and adding towers now that their LTE is spreading to more cities. Also since the merger didn't go through with At&t they are upgrading to compete in general.
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No same results at any time of day and i also noticed it did start happening until i flashed the t999uvdmd5 but since then used different ones but same results
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Call support to see if they are working on the network in your area.
If not, try the other modems in my baseband thread.
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At&t note 2 mod for T-Mobile 3G/4G speeds

Hey guys i got a great offer for this beautiful Phone however i don'twasn't to leave T-Mobile, if I do this https://www.youtube.com/watch?v=y7gMO_kRxyM&feature=youtube_gdata_playermod and then i root it will I lose the settings after? Like when flashing a new ROM would i loser this again?

Follow this guide. Works perfectly. I used my i-317 on T-Mobile for a while before I traded it and got great 4G speeds.
http://galaxynote2root.com/galaxy-n...3g4g-aws-bands-on-att-galaxy-note-2-sgh-i317/
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MikeySmikey said:
Follow this guide. Works perfectly. I used my i-317 on T-Mobile for a while before I traded it and got great 4G speeds.
http://galaxynote2root.com/galaxy-n...3g4g-aws-bands-on-att-galaxy-note-2-sgh-i317/
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Thanks for the reply but I already did the mod my question is will I lose it if I root the phone and flash a rom

Jess813 said:
Thanks for the reply but I already did the mod my question is will I lose it if I root the phone and flash a rom
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No, it permanently unlocks those bands, just like carrier unlocking a phone. Once it's done its done.
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MikeySmikey said:
No, it permanently unlocks those bands, just like carrier unlocking a phone. Once it's done its done.
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That's F**cken AWESOME!!!!!! WOW

Jess813 said:
That's F**cken AWESOME!!!!!! WOW
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Yeah, pretty sweet stuff. And like I said, I got really good data speeds. Before I did the mod I was stuck on Edge, afterwards I was pulling down like 15+ Mbps download and 3+ upload speeds.
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MikeySmikey said:
Yeah, pretty sweet stuff. And like I said, I got really good data speeds. Before I did the mod I was stuck on Edge, afterwards I was pulling down like 15+ Mbps download and 3+ upload speeds.
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I thought we could get 42+

Jess813 said:
I thought we could get 42+
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No. The T-Mobile version, T-889, is a dual cell phone capable of supporting 42.2 Mbps data transfer. The AT&T version, i-317, is not and is limited to 21.1 Mbps. However the i-317 is capable of using more than one LTE band whereas the T-889 is limited to just one.
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MikeySmikey said:
No. The T-Mobile version, T-889, is a dual cell phone capable of supporting 42.2 Mbps data transfer. The AT&T version, i-317, is not and is limited to 21.1 Mbps. However the i-317 is capable of using more than one LTE band whereas the T-889 is limited to just one.
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OK so what how does using more than one LTE band benefit the end user?

Jess813 said:
OK so what how does using more than one LTE band benefit the end user?
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Good question, I have no idea other than ones geographical area.
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MikeySmikey said:
Good question, I have no idea other than ones geographical area.
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Hey man so I just not got my Note, and the mod is in... and i have a maybe stupid question... i can only flash At&t roms correct?

Jess813 said:
Hey man so I just not got my Note, and the mod is in... and i have a maybe stupid question... i can only flash At&t roms correct?
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No, you can flash other carriers roms. The thing is you have to make damn sure what you're flashing isn't gonna brick you. From a software standpoint all Note 2's are the same, for the most part. You have to be careful not to flash another carriers modem or you'll have no signal. If that happens just flash an AT&T modem and you're good. The kernel is pretty much the same. There might be some minor differences but nothing to worry about. Just read read read. All the info is in the OP, and if it's not just ask in that thread.
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MikeySmikey said:
No, you can flash other carriers roms. The thing is you have to make damn sure what you're flashing isn't gonna brick you. From a software standpoint all Note 2's are the same, for the most part. You have to be careful not to flash another carriers modem or you'll have no signal. If that happens just flash an AT&T modem and you're good. The kernel is pretty much the same. There might be some minor differences but nothing to worry about. Just read read read. All the info is in the OP, and if it's not just ask in that thread.
Sent from my SGH-T889 using xda premium
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well to play it safe then i will stick to the At&t section
Thanks for all your help bro!

Jess813 said:
well to play it safe then i will stick to the At&t section
Thanks for all your help bro!
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You can flash tmobile roms no problem. You'll also have access to wifi calling if you're carrier is tmobile. I'm using my at&t note 2 on tmobile. Lte and h+ on either carriers roms.
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jayb222 said:
You can flash tmobile roms no problem. You'll also have access to wifi calling if you're carrier is tmobile. I'm using my at&t note 2 on tmobile. Lte and h+ on either carriers roms.
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Thanks for the info! I haventbfound a AT&T ROM that I like LoL
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jayb222 said:
You can flash tmobile roms no problem. You'll also have access to wifi calling if you're carrier is tmobile. I'm using my at&t note 2 on tmobile. Lte and h+ on either carriers roms.
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I just tried to flash a Tmobile rom...failed was the TWRP message and I tried it twice with seperate roms
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