Develop Bugs

[Q] TMO S3, switching to ATT. Any tweaks, rom advice?

Hey all, atm I use the stock rom, rooted for tmobile. (Stock rom isnt that bad for JB tbh.. to my surprise) However I just switched to ATT, waiting on my nano to micro adapter to come in so I can switch back to use it. Now as far as I read, I should have the 3g and 4g bands just fine, I just wont have LTE on ATT, correct? Next up, aside from using titanium backup to force uninstall TMOs software, was wondering, should I change out my rom too or is stock still cool to use for ATT?
That or what is everyone else doing if they took their S3 to ATT or tweaks that could help for network speed etc. That or apps that are good for ATT on it. Thanks.

Anyone? Or is there no tweaks or more ideal rom builds. Atm I mange to get 3-4 Mbps download speeds. Not sure how fast Iphone 5 gets.. Didnt test and dont feel like taking the sim out again tonight lol.

As suggested by the ATT S3 section of the forums, Ill put my post here too with more details on what I could be looking for.
Hello, Just changed from Tmobile to ATT. I already unlocked it, and am running it on 4G. Sad part is, download is only like 1-3 Mbps it seems. While my Iphone 5 can get close to 7 Mbps (Now this is just 4G band, NOT LTE)
So I am wondering if there are some tweaks I need to adjust in the build.prop or anything else. Atm I just use the stock rom thats rooted. (Since it seems nice enough for JB and honestly, I havent figured out which custom rom beats the stock rom 100% without losing any features.
Also noticed I cant install the ATT Visual voicemail as it claims device isnt compatible. (Which that I am sure I can use a build.prop edit for the model. Question is, which model and items do I need to adjust and to what value?)
Anyways, if anyone has some good advice about using the tmobile S3 on ATT and getting it tweaked to be the best it can be, or a rom that is perfect for switching between ATT and Tmobile (should I use my prepay tmo sim in it again) and provide high data speed. Would be great.
Oh also.. just so I know. Can I use the ROMs posted in this ATT section of XDA for the t999 tmo s3 or do I need to still only use roms from the tmo s3 section of xda? Thanks. =)

Mysticales said:
Oh also.. just so I know. Can I use the ROMs posted in this ATT section of XDA for the t999 tmo s3 or do I need to still only use roms from the tmo s3 section of xda? Thanks. =)
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Not sure about the other stuff, but with regard to this, your phone is still a t999 no matter what carrier you are with. Hardware doesnt change, so I would recommend you stick around in the tmo section.
Some att ROMs may work, but not sure which, so if you DO want to use an att rom, I would suggest asking the dev if it will work for the t999.
Sorry I couldnt answer about the rest, im too noobish for all that
Sent from my SGH-T999 using xda app-developers app

Yea thats the trick, Seems its hard to even find that advice lol. I mean long as I dont use the international s3 roms. Just between Tmobiles and ATT. I dont know. I dont even know if its considered the same model and could use the same rom. Perk of using an ATT rom, may increase my network speed some along with being able to use their apps. Atm I cant use the ATT Visual voicemail since it says my phone isnt compatible. Which I know I could prob bypass that with the build.prop provided I knew which model to make my phone.

[Q] Advice on tweaking my Tmobile T999 S3 to use on ATT now?

Hello, Just changed from Tmobile to ATT. I already unlocked it, and am running it on 4G. Sad part is, download is only like 1-3 Mbps it seems. While my Iphone 5 can get close to 7 Mbps (Now this is just 4G band, NOT LTE)
So I am wondering if there are some tweaks I need to adjust in the build.prop or anything else. Atm I just use the stock rom thats rooted. (Since it seems nice enough for JB and honestly, I havent figured out which custom rom beats the stock rom 100% without losing any features.
Also noticed I cant install the ATT Visual voicemail as it claims device isnt compatible. (Which that I am sure I can use a build.prop edit for the model. Question is, which model and items do I need to adjust and to what value?)
Anyways, if anyone has some good advice about using the tmobile S3 on ATT and getting it tweaked to be the best it can be, or a rom that is perfect for switching between ATT and Tmobile (should I use my prepay tmo sim in it again) and provide high data speed. Would be great.
Oh also.. just so I know. Can I use the ROMs posted in this ATT section of XDA for the t999 tmo s3 or do I need to still only use roms from the tmo s3 section of xda? Thanks. =)

Probably you are better off posting this in TMo section too... cos there would be higher chances for finding someone who already tried putting the AT&T version of ROM on his TMo phone.

Posted there too, not much luck on responses yet. So figured maybe this side knows more. I dont even know if one can use the ATT Xda rom side for the tmo s3 for example. Was there any hardware differences (aside from the radio since I know tmos doesnt have LTE) Also what is the model for ATT s3 for the build.prop?

Anyone least know if the roms in ATT section would even work on the Tmobile model? Kinda thinking I should switch out and have all the setups and apps for ATT.

[Q] AT&T i747 unlocked using T-Mobile

First of all i wanna say, you all do an amazing job with all of this. So ive been looking around the forums and i cant find an answer to my question, so i will post and wait for replay. i have the at&t version (i747) of the gs3 and had updated to 4.1.1 via kies. early march i found a post on your forums about sim/carrier unlocking and tried it out. it worked w/o any problems, so i headed to t-mobile to jump on their monthly unlimited 4g plan. installed sim and had no problems. all functions work: calls, im, sms, mms, data (edge, 3g, and HSPA+), everything. on march 17th, i decided to try out a custom rom. i odin rooted my phone with cwm then tried out [ROM][4.2.2][STABLE] LiquidSmooth v2.1 - d2att - 3|16|13. works absolutely fine. sorry for the long wind but i just want to make sure i give all info before posting my question as i may prevent unness replies. having an at&t phone using tmobile as the carrier, can i use roms intended for t-mobile only, or do i have to stick to at&t/multi-carrier roms only?

Honestly making sure you have a T-Mobile put in is all that matters. Other than that they are fairly interchangeable.
Sent from my SAMSUNG-SGH-I747 using xda premium

hednik said:
Honestly making sure you have a T-Mobile put in is all that matters. Other than that they are fairly interchangeable.
Sent from my SAMSUNG-SGH-I747 using xda premium
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I have been making roms, from Canada claro i747m, and tmobile t999 and att 747 and they all work as they should. no problems at all, using stock att modem i747ucdlk3 without any issues...
all I did was change the build prop to represent d2att..
I have simplemobile which is a tmobile company.. except for now I just used up my 4g.. I usually get 3g, but for some reason im getting an E which speed is like 2g edge.. slow at the moment.. never seen that in 3 months..
check my signature, for my roms... they r all stock original roms..

I'm in the same situation as the op. I have at&t i747 unlocked to use with tmobile. My question is, if I flash a multi-rom What carrier do I choose during the aroma install? do I pick tmobile because thats what network im using now or do I pick at&t because its originally an at&t device? any help or advice would be greatly aprecciated.

during the install of liquidsmooth i chose att since i do have the branded phone. i cant use the lte settings for network cause tmob doesnt have their lte out yet (soon to drop), but i am wanting to try the tmobile install and see if i get any difference in data speeds. other than that, liquidsmooth is a pretty solid build. this is the only rom i have tried on my gs3 so far. id like to try others to maybe help give feedback for builders, i just wasnt sure if i could use tmobile or had to stick to att roms. thanks for the info.
on a side note, the rom unlocked a 1080p video record and i like showing ppl the OC ability. 1.9Ghz. YAY!!!

when I first made my Canada Claro rom d2can everything worked out the box. the only thing was it was showing me info of I747m, everything was still working, same when I made my tmobile rom, it was showing d2tmo, everything worked out the box, just that it showed me info of T999, so both of the roms worked, all I did was change the build prop to represent d2att ATT info..
So the answer is yes, u can use other roms... just be careful not to install the modem. I never changed that. I remove them from the rom.
Danger,, I tried making the international GT I9300 and removed the modem, changed the build prop.. almost bricked my phone, played with it to try to make it work, It would hang and sometimes not boot up... so stay away from international one.
so if u try Canada or tmobile u should be safe, its the same phones... or if someone post roms that are ported to att i747.

I am using i747 for T-Mobile.
Can somebody tell me what ROM i should use in order to get WIFI Calling on it ?
Thank you.

[Q] Samsung Galaxy Nexus Sprint L700

So, I thought I would ask here. I can't find a lot of information on the problem. There are sites that have contradicting information in google results, but mostly, nothing consistent. Hoping at least here I can get a why or a how to fix it.
So, as the title suggests, I have a Sprint Samsung Galaxy Nexus L700 running Slimkat with Android 4.4.2 build 4 official. I think there's an update to that rom, but at this point I don't think the rom has anything to do with the issue. All roms have the issue.
So the issue in question. Sprint rolled out LTE 4G in my area but my nexus never gets it. I know we have 4g because my Galaxy Tab 3 picks it up all the time. When I look at the tab, the network is listed as LTE:14. However, no matter what I try, the nexus will only ever pick up CDMA - EvDo rev A. This is a 4G phone and I'm using the GJ04 LTE/CDMA radios, but I never get 4g. I get 3G just fine. For whatever reason, it's like the LTE radio on this nexus never bothers to activate.
What i've tried to fix this:
1. Different radios. I've tried them all, from FC02 to GJ04.
2. Different roms. Same issue on all roms. Doesn't appear to be a custom rom issue.
3. Doing the data settings to LTE only. This doesn't stick, it just goes back to CDMA. I'm told this is by design due to 4g being data only mode.
I don't know what else I can try. Sprint's only answer is to blame it on the custom rom. Which I can't necessarily blame them for, it did void my warranty, but even with the stock rom I still get no LTE.
Any ideas?

Well for sure one thing is to flash the stock rom and see if you get the lte connections.
second, try someone else sim and see if that fixes the issue.

Sprint Galaxy Nexus getting no 4g inside coverage area
I am having the same issue as the first post and have tried all of the same troubleshooting tactics with no prevail. I am currently running LiquidSmooth v3.1 4.4.4 KK baseband GJ04. I have contacted sprint and they are of absolutely zero help. Not only am I having 4g connection issues but I can barely receive 3g. I am located literally in what sprint considers one of their best 4g coverage areas in my area yet haven't been able to connect once. Please any help or insight as to a solution would be greatly appreciated.

[Q] N7105 T0LTE Baseband? Reception issues.

I recently got my Note 2 and am having trouble figuring out what baseband I should be on as I'm having reception issues and was hoping I might need updated.
It's the AT&T T0LTE and it's unlocked. I'm running the latest CM11 nightlies. I'm on Straight Talk and using the T-Mobile sim. (Same issue with AT&T sim)
Currently running:
(Android 4.4.4, CM 11-20141007-NIGHTLY-t0lte, CWM 6.0.4.1)
(Baseband I317UCALJ2)
I've been searching but am having trouble finding good info on the modems and such. Can anyone point me in the right direction please? Thanks!

So I updated to i317UCUCNE5. Is this the latest? It made data work alot better, but im still having issues with actual calls from the house. My S2 works fine in the house for calls with the same sim, note 2 has issues though.

The [URL http://forum.xda-developers.com/galaxy-note-2-att]ATT Galaxy Note II[/URL] is the I317 not the N7105. ATT Modems you are already using the most recent one though (UCUCNE5) I have bad reception with this device too so I cannot help you there.

xBkKx said:
The [URL http://forum.xda-developers.com/galaxy-note-2-att]ATT Galaxy Note II[/URL] is the I317 not the N7105. ATT Modems you are already using the most recent one though (UCUCNE5) I have bad reception with this device too so I cannot help you there.
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Oh ok, In about phone it says GT-N7105... i did notice the radio had the I317 in it.. Honestly it's a hacked together phone where I work at a phone shop. Its a T-mobile chasis and cover with what I assume is an ATT motherboard because that's the carrier that came up with i searched the IMEI was ATT. This motherboard had Omni loaded on it so I never got to see it in stock form.
On average this phone gets a 20db worse signal then my S2 with the same SIM. I get poor reception with the S2 at home, can't make any calls on the note2 at home. It works great everywhere else. Maybe it's just the phone, can't find any bad connections inside that could cause it, even tried another antenna cable.
Thanks for your input!

Hey, since this phone came unlocked.. im thinking it is the n7105 and not the i317. It was modded when I got it, so with that said. What radio should the n7105 be running? Maybe the i317 radio was flashed to this and that's my issue?

Your phone should have no signal and an unknown baseband using the I317 modems if it wasn't that model. I have no idea what modems the N7105 uses you could try searching the development thread for modems.

Cool thanks, i got it figure out. The model stuff anyway. It is an I317. I'm about to ODIN back to stock, take the OTA's and wipe it clean and see if that helps my signal issues. Has the I317UCAMH3 bootloader so shouldnt have any issues downgrading this initial time. Hopefully this will help the Frankenphone from hell.