Develop Bugs

[Q] can tmobile t989 run on at&t 4g???

I have read about skyrocket getting t mobile 4g service but i never got a clear answer to my question so far i get 3g service on at&t network using tmo galaxy s2 t989.
i am using the Jedi mind trick v8 ICS ROM
I have tried flashing an at&t modem once which did not work well. Please share your thoughts on this if you have succeeded in getting at&t 4g :fingers-crossed:

money_jatt said:
I have read about skyrocket getting t mobile 4g service but i never got a clear answer to my question so far i get 3g service on at&t network using tmo galaxy s2 t989.
i am using the Jedi mind trick v8 ICS ROM
I have tried flashing an at&t modem once which did not work well. Please share your thoughts on this if you have succeeded in getting at&t 4g :fingers-crossed:
Click to expand...
Click to collapse
I don't think so, t989 is not lte by default, even it has 1700mhz. But if you can find a radio to enable it, that will be a different story.

It will never work on att lte. Doesn't have the hardware for it. It will say 3g but will have T-Mobile "4g" speed. 10+mbps
Sent from my SGH-T989 using xda app-developers app

Teo032 said:
It will never work on att lte. Doesn't have the hardware for it. It will say 3g but will have T-Mobile "4g" speed. 10+mbps
Sent from my SGH-T989 using xda app-developers app
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Click to collapse
can you explain this?
http://forum.xda-developers.com/showthread.php?t=1417095&highlight=t989+lte+hardware&page=1
i have a feeling it is possible but not sure how to do it exactly because it has worked the other way with the right modem and kernel.

Did you read the thread? Ultimately, the thread proves that our phone doesn't have lte so we won't be able to connect to any lte network. However we do get h+ on att though... which can go up to 20+ mbps which is more than enough.
Sent from my SGH-T989 using xda app-developers app
---------- Post added at 12:07 AM ---------- Previous post was at 12:05 AM ----------
Oh and if i remember correctly. I think someone even took the two phones apart and the antennas are definitely different...
Now i just realize I've been on these threads for too long to remember what went on last year... time for a new phone
Sent from my SGH-T989 using xda app-developers app

Teo032 said:
Did you read the thread? Ultimately, the thread proves that our phone doesn't have lte so we won't be able to connect to any lte network. However we do get h+ on att though... which can go up to 20+ mbps which is more than enough.
Sent from my SGH-T989 using xda app-developers app
---------- Post added at 12:07 AM ---------- Previous post was at 12:05 AM ----------
Oh and if i remember correctly. I think someone even took the two phones apart and the antennas are definitely different...
Now i just realize I've been on these threads for too long to remember what went on last year... time for a new phone
Sent from my SGH-T989 using xda app-developers app
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Click to collapse
thanks for the help so i understand you can't get 4g lte but i can get 4g hspa+ but i have been only getting 3g so far. So could you please tell me which radio to flash and do i need to maually switch bands through service mode or any of that sorts of stuff. thanks in advance. I would be happy with hspa+ if i could get it to work. and wat apn setting should i use?

Before getting to the radios. The icons might say 3g but you're really getting 4g speed. Have you done any speed test? If you're getting below like 3mbps then you probably need to change radios. For some phones stock radios will work with att. But if it doesn't then go over to the skyrocket forum and choose a radio. There should be threads for it. You don't need to change kernels that has nothing to do with it. Only radios.
Sent from my SGH-T989 using xda app-developers app
---------- Post added at 02:23 AM ---------- Previous post was at 02:22 AM ----------
Oh and no need to switch bands. It should be automatic.
Sent from my SGH-T989 using xda app-developers app
---------- Post added at 02:24 AM ---------- Previous post was at 02:23 AM ----------
As for apn... I'm not sure on this but it might be automatically detected, if not the skyrocket forum could help you more. It's just the normal att apn.
Sent from my SGH-T989 using xda app-developers app

Help with unlocked AT&T Note 2 on T-Mobile

I'm frustrated already, I bought an AT&T SAMSUNG-SGH-I317 and also purchased an unlock code, phone was working just fine with 4g on AT&T ( Tested ) but after unlocking I just don't get service when I use a T Mobile or Simple Mobile SIM.
On the About Phone -> Status I do get "Network: T-Mobile/Simple Mobile" ( Depending on the SIM I use ), but I don't even get EDGE, I cant make calls, I get the annoying emergency calls only, its making me crazy. Is there a way to fix this issue?
I am in Tucson Arizona, a city where T-Mobile has upgraded their GSM frequency.
( I already added the APN settings, but im sure I don't need that to make calls, or get EDGE, I don't know what else to do to fix this ).
Thanks

Does it still work on att?
Sent from my SGH-T889 using xda app-developers app

Nolenm04 said:
Does it still work on att?
Sent from my SGH-T889 using xda app-developers app
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Click to collapse
Yes it still works on AT&T

Did you try changing the apn to tmobile?
Sent from my SGH-T889 using xda premium
---------- Post added at 08:38 PM ---------- Previous post was at 08:37 PM ----------
jay661972 said:
Did you try changing the apn to tmobile?
Sent from my SGH-T889 using xda premium
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Click to collapse
Did not see that you added apn, just make sure its for tmobile
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jay661972 said:
Did you try changing the apn to tmobile?
Sent from my SGH-T889 using xda premium
---------- Post added at 08:38 PM ---------- Previous post was at 08:37 PM ----------
Did not see that you added apn, just make sure its for tmobile
Sent from my SGH-T889 using xda premium
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Click to collapse
Not trying to be an a$$ I rly do appreciate that you are taking your time helping me but on my first post is stated that I added the APN and that APN should not keep me from making calls.

The Note 2 uses a micro SIM, I trimmed my T Mobile SIM, this SIM still works on my HTC HD2, but its not working on the Note 2, is it possible that the phone is rejecting the SIM? does the Micro SIM has any kind of DATA that is not present on my trimmed SIM?
The phone works fine with an AT&T micro SIM but not with the T Mobile one( the phone is unlocked with a purchased code ).

No HSPA Network?

Had S2 and got HSPA network all day long now I have the S3 I only get UTMS. What's the deal? I even updated my Sim card today and thought that would help but I am still on UTMS and not HSPA. When I had the S2 I could get HSPA on data and wifi networks. So now I am wondering if something is wrong with my phone. Hell, if I can't get HSPA I mind as well go back to the S2 or get a phone that can get HSPA like it's supposed too.

Its normal. Itll go up when needed during transfers.
Sent from my SGH-T999L using xda premium

DocHoliday77 said:
Its normal. Itll go up when needed during transfers.
Sent from my SGH-T999L using xda premium
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Yes as long as ur in a good area it will speed up greatly...

I am in the same area as before my house that's what I don't understand
Sent from my SGH-T999 using Tapatalk 2

Check when data is in use download a large app and while its downloading you'll see hspa if its active.
T-Mobile SGS III

mt3g said:
Check when data is in use download a large app and while its downloading you'll see hspa if its active.
T-Mobile SGS III
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Click to collapse
Yeah I see HSPA but it used to stay at hsoa all the time
Sent from my SGH-T999 using Tapatalk 2

It's a Tmobile thing to switch down when not downloading. It saves bandwidth.

richardlibeau said:
Yeah I see HSPA but it used to stay at hsoa all the time
Sent from my SGH-T999 using Tapatalk 2
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How much has it affected ur speeds if any ???

Mr. 5Theezie said:
How much has it affected ur speeds if any ???
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It affects latency when its switching but has a negligible effect on actual download speed. It also saves battery over being on HSPA all the time.

xHazardx said:
It's a Tmobile thing to switch down when not downloading. It saves bandwidth.
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EtherealRemnant said:
It affects latency when its switching but has a negligible effect on actual download speed. It also saves battery over being on HSPA all the time.
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Click to collapse
Exactly!
Sent from my SGH-T999L using xda premium

Mr. 5Theezie said:
How much has it affected ur speeds if any ???
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I mean the speed is fine just thought it would be hspa
Sent from my SGH-T999 using Tapatalk 2

richardlibeau said:
I mean the speed is fine just thought it would be hspa
Sent from my SGH-T999 using Tapatalk 2
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For battery life I agree with u... but as long as it not affecting performance id leave it and see if the next update if any wud correct it ...or try flashing another kernel ??? My .02

Mr. 5Theezie said:
For battery life I agree with u... but as long as it not affecting performance id leave it and see if the next update if any wud correct it ...or try flashing another kernel ??? My .02
Click to expand...
Click to collapse
There's nothing to correct. It was intentionally built to do exactly what it is doing. It saves bandwidth on the network and yes, it does save on battery. So you have to wait an extra 6/10ths of a second for it to start reaching full speeds... Imo, its a great tradeoff!
Sent from my SGH-T999L using xda premium

DocHoliday77 said:
There's nothing to correct. It was intentionally built to do exactly what it is doing. It saves bandwidth on the network and yes, it does save on battery. So you have to wait an extra 6/10ths of a second for it to start reaching full speeds... Imo, its a great tradeoff!
Sent from my SGH-T999L using xda premium
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Good to know just was thinking maybe something was wrong with the phone or something.

richardlibeau said:
Good to know just was thinking maybe something was wrong with the phone or something.
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Click to collapse
No, T-Mobile uses dual carrier HSPA which theoretically can use double the bandwidth and double the battery life of At&t HSPA. Using UMTS as an idle fall back makes sense as HSPA itself is already a huge battery drainer (lock your phone to Edge for 24 hours and you'll see what I mean) - UMTS still consumes more than EDGE obviously but the hand off from EDGE to UMTS would be impossible to maintain virtual transparency.
Sent from my SGH-T999 using Tapatalk 4 Beta
---------- Post added at 03:32 PM ---------- Previous post was at 03:32 PM ----------
Not to mention that you would lose HD voice.
Sent from my SGH-T999 using Tapatalk 4 Beta

EtherealRemnant said:
No, T-Mobile uses dual carrier HSPA which theoretically can use double the bandwidth and double the battery life of At&t HSPA. Using UMTS as an idle fall back makes sense as HSPA itself is already a huge battery drainer (lock your phone to Edge for 24 hours and you'll see what I mean) - UMTS still consumes more than EDGE obviously but the hand off from EDGE to UMTS would be impossible to maintain virtual transparency.
Sent from my SGH-T999 using Tapatalk 4 Beta
---------- Post added at 03:32 PM ---------- Previous post was at 03:32 PM ----------
Not to mention that you would lose HD voice.
Sent from my SGH-T999 using Tapatalk 4 Beta
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Click to collapse
Yeah I understand but just like looking for the speed end of the spectrum
Sent from my SGH-T999 using Tapatalk 2

richardlibeau said:
Yeah I understand but just like looking for the speed end of the spectrum
Sent from my SGH-T999 using Tapatalk 2
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Click to collapse
You're not taking any measurable speed hit.
Sent from my SGH-T999 using Tapatalk 4 Beta

EtherealRemnant said:
You're not taking any measurable speed hit.
Sent from my SGH-T999 using Tapatalk 4 Beta
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No not really it just bugs me that in status bar as well it used to say 4g, dc, or h+ and now most of the time it says 3g.
Sent from my SGH-T999 using Tapatalk 2

Its just finally being honest with you!
Sent from my SGH-T999L using xda premium

DocHoliday77 said:
Its just finally being honest with you!
Sent from my SGH-T999L using xda premium
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Click to collapse
LOL
Sent from my SGH-T999V using Tapatalk 2

[Q] Upgrade radio to receive 4g LTE??

Do I need to upgrade the radio on my Sprint Galaxy S3 to be able to receive 4g LTE?
I just installed Cyanogen 10.1.3 on my phone this morning, and found out that apparently we have 4g LTE in the area now......its a new thing apparently..... I don't see any indication that my phone is getting 4g LTE though.....
I used ClockworkMod to install 10.1.3 if that helps......

4G is already configured on the ROM, you might check Settings/more settings wireless/mobile networks to see if 4G is set as default. Now just because you guys are getting 4G in your area doesn't necessarily mean that right where you are you are receiving it if that makes any sense
Sent from my SPH-L710 using Tapatalk 4
---------- Post added at 04:17 PM ---------- Previous post was at 04:16 PM ----------
If I remember correctly radios are an HTC thing not Samsung
Sent from my SPH-L710 using Tapatalk 4

Samsung it's modems but it's the same thing.
Sent from the future via Tapatalk 4

Well, in the settings the preferred network mode is set to LTE/CDMA/EvDo..... so I'm guessing that if 4g LTE is in the area, I will get it...... I'm just wondering if there will be some indication on the phone that I'm using 4g LTE.......
rsaavedra said:
4G is already configured on the ROM, you might check Settings/more settings wireless/mobile networks to see if 4G is set as default. Now just because you guys are getting 4G in your area doesn't necessarily mean that right where you are you are receiving it if that makes any sense
Sent from my SPH-L710 using Tapatalk 4
---------- Post added at 04:17 PM ---------- Previous post was at 04:16 PM ----------
If I remember correctly radios are an HTC thing not Samsung
Sent from my SPH-L710 using Tapatalk 4
Click to expand...
Click to collapse

So, how do I know if the modem/radio is current enough to get 4g LTE? I'm guessing it is since its a 4g phone.......
edfunkycold said:
Samsung it's modems but it's the same thing.
Sent from the future via Tapatalk 4
Click to expand...
Click to collapse

wingnutg144 said:
So, how do I know if the modem/radio is current enough to get 4g LTE? I'm guessing it is since its a 4g phone.......
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Click to collapse
Because it's an lte phone. It will say 4g or lte depending on what icon your rom is using. If your on an aosp rom there's usually a toggle you might want to toggle it on and off and on.
Sent from the future via Tapatalk 4

Questions go in Q&A
Thread moved
Friendly Neighborhood Moderator

I'm using CM10 10.1.3 ROM, any idea where the setting would be to turn it off/on??
Sent from my SPH-L710 using Tapatalk 2

wingnutg144 said:
I'm using CM10 10.1.3 ROM, any idea where the setting would be to turn it off/on??
Sent from my SPH-L710 using Tapatalk 2
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That's pretty damn basic man. I highly advise going through every single, yes every single, setting menu there is under settings now that you have a custom ROM. You'll get a basic overview of where everything is, toggle wise, plus get to see all the cool customization you can do now.
Settings > under Wireless & Networks: More... > Mobile Networks > Network Mode

I've see that section, not sure what option I would want for 4g service
TravisH997 said:
Settings > under Wireless & Networks: More... > Mobile Networks > Network Mode
Click to expand...
Click to collapse
Sent from my SPH-L710 using Tapatalk 2

wingnutg144 said:
I've see that section, not sure what option I would want for 4g service
Sent from my SPH-L710 using Tapatalk 2
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Click to collapse
if it's set to CDMA/LTE then you are golden, however you might not have LTE in your area despite the fact that Sprint says they are expanding 4g coverage in your area
check the user contributed map from
http://sensorly.com/map/4G/US/USA/Sprint/lte_310sprint

Weak LTE connection in strong signal area

Hey guys!
I recently switched over to T-Mobile from Sprint. After looking at the data maps, it appears that I'm supposed to have a very strong signal/connection with LTE in my area. This isn't the case with my new GS4 however.
I get 1 bar at best and at times the signals get choppy. HSPA+ is strong, phone calls are clear, but LTE is lacking.
I know when I used my GS2 with Sprint they had things called modems that you could flash for varying connection performance. With the HTC EVO 4G, you could flash Radios.
Does the GS4 have anything similar to that effect? Do different ROMs have varying efficiency in terms of connectivity?
I'm just trying to optimize my connection. Any help would be deeply appreciated. Thank you!
On an interesting note - my IP is showing as Washington from T-Mobile even though I live in Denver..

I am having the same issue here in Texas. Sucks that there is no radio support and have alternate radios to flash.
Sent from my SGH-M919 using Tapatalk

http://forum.xda-developers.com/showthread.php?t=2282342 its the only one unless T-mobile quits being lazy and give us something LOL but 4.3 is around the corner so that will help all of us soon

Try dialing *#2263# and force LTE
Sent from a Insane S4
SICK MADE DEVELOPMENT

@alloycowboy if he forces LTE wouldn't his connection drop since he already having these issues with LTE,also its for my knowledge as well not second guessing you or anything LOL

krazierokz said:
@alloycowboy if he forces LTE wouldn't his connection drop since he already having these issues with LTE,also its for my knowledge as well not second guessing you or anything LOL
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Click to collapse
No...its set on automatic. It wont hurt to try to force LTE. If it doesn't change anything he can put it back to automatic by dialing *#2263#.
Im in the same situation....kinda. But when I force LTE its all good.
Sent from a Insane S4
SICK MADE DEVELOPMENT
---------- Post added at 04:33 PM ---------- Previous post was at 04:08 PM ----------
defvayne said:
I am having the same issue here in Texas. Sucks that there is no radio support and have alternate radios to flash.
Sent from my SGH-M919 using Tapatalk
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Click to collapse
Im Southeast Texas
Sent from my SGH-M919 using XDA Premium 4 mobile app

alloycowboy said:
Try dialing *#2263# and force LTE
Sent from a Insane S4
SICK MADE DEVELOPMENT
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Click to collapse
Does not work on my CM 4.3 S4. That's odd.
Sent from my SGH-M919 using Tapatalk
---------- Post added at 05:27 PM ---------- Previous post was at 05:19 PM ----------
defvayne said:
Does not work on my CM 4.3 S4. That's odd.
Sent from my SGH-M919 using Tapatalk
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Click to collapse
*#*4636#*#* works for CM based ROMs. Forgot about that.
Sent from my SGH-M919 using Tapatalk

You might have decent 4g connectivity. Try switching it to gsm/wcdma instead of lte/gsm/wcdma. When you have it set to auto, it will always try to connect to lte. You should get a pretty good download speed on gsm...
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