Develop Bugs

Turning Off UMTS for us S.Floridians T-Mobile

As T-Mobile rolls out their 3G service, it appears 3G HTC phones automatically lock onto the 3G signal (UMTS) which T-Mobile has politely firewalled until they rollout the plans???? So if you have a Kaiser or Hermes in S.Florida you currently have no data access on Edge as the phone defaults to the firewalled UMTS.
SO the question is any of the tech geniuses here know how to switch off UMTS, changing the bands does not help as UMTS, and GSM bands match up (on hermes), switching to a NON- T-mobile frequency also switches the GSM to Non-T-Mobile.
???? Beware if this happened in S.Florida as the network enlarges, you too could be next.!!

By no means am I an expert. But I do know a lot of the cooked roms have an option in the commanager which allows us to turn on/off 3G
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Again, I'm no genius at this(That statement makes my reply a little bit more flame retardant) But I hope that helps. I can't wait until they hit the 3G switch here in Chicago.

Wish it was that simple!
Unfortunately it appears that this may disable the 3G data connection but not the radio. Hence the network still sees a 3G phone and treats it as such. The only way to get around the problem is to actually de-activate UMTS so the network sees an Edge only capable phone. Thanks for the help though!

I'm surprised your phone logs on to the T-Mobile UMTS network. It uses the 2100/1700 MHz AWS band, which no Windows Mobile device supports yet. Are you sure you're logging on to T-Mobile, instead of AT&T Mobility? My phone does that from time to time when reacquiring a signal.
Try forcing your phone to connect to T-Mobile instead of using automatic network selection.

Dumb question, but what if it is detecting the 2100mhz half of the UMTs connection.

I've heard (and I'm pretty sure) that the 2100MHz AWS band that T-Mobile won is different than the standard 2100MHz used worldwide. Plus, I don't think the radio will be able to register on the network anyway if it only has a one-sided conversation with the tower...

kltye said:
I've heard (and I'm pretty sure) that the 2100MHz AWS band that T-Mobile won is different than the standard 2100MHz used worldwide. Plus, I don't think the radio will be able to register on the network anyway if it only has a one-sided conversation with the tower...
Click to expand...
Click to collapse
Yeah, the TMobile uses a combo of 2100mhz and 1700 mhz, while Europe is 2100/1900.
Chances are its picking up the AT&T UMTS network, but you can't roam on it. Are you using a stock ROM? If you're not, go under settings > phone > band (most cooked ones will have this), and change it to strictly GSM. That will lock it to GSM until you change it back.
If you are on a stock ROM, there are various tweaks you can get, I know HermesTweak will let you (yes its old, I stick to cooked ones so I dont know any other standalone ones). Or hell, you could even install Schap's 6 button comm manager as it has the 3g option on there.

Will a t989d work in the states?

I have an unlocked telus t989d
I will be moving to the states in a few months and i'm wondering if this phone will work on any network in the states. and if so, which network will it work on?
Thanks

Probably AT&T and Tmobile, as they carry identical phones except the AT&T version has LTE. The T-Mo ver is the same thing, but im guessing you could flash a t-mobile modem just to be sure.
Someone with more experience might know better though.

our phone woks on any cell provider in the world except JAPAN, just plug in a SIM card from your favourite local provider where you gonna be staying during the vacation / visit

Would it still be possible to flash an AT&T modem and just use their 3G network instead of the LTE? Just in case you're moving into
a more rural area where T-Mobile doesn't have acceptable coverage.
SGS2 T989 on Synergy kernel with beastMOD
I'm a quick learner, teach me something.

T-Mobile will be your best call since the phones are exactly the same in specs and radios, if you go to AT&T you won't get 3G coverage only 2G.

Dark Nightmare said:
T-Mobile will be your best call since the phones are exactly the same in specs and radios, if you go to AT&T you won't get 3G coverage only 2G.
Click to expand...
Click to collapse
that is 200% incorrect
the T989 can get 3G/4G on any HSPA provider, except CDMA

Dark Nightmare said:
T-Mobile will be your best call since the phones are exactly the same in specs and radios, if you go to AT&T you won't get 3G coverage only 2G.
Click to expand...
Click to collapse
AllGamer said:
that is 200% incorrect
the T989 can get 3G/4G on any HSPA provider, except CDMA
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+1 Confirmation as to what AllGamer says; I use an unlocked SGH-T989 on AT&T and get 3G/HSPA speeds. The icon just stays as 3G on stock rom.

What's the Matter with this LTE option at my 7100

Well i was looking about thru all options etc and i found this:
but when i turn it on i get no Connection at all, it starts at G----E---3G---H---H+ and then no more connection. (Well i got no LTE data contract) but why is this option there? Could it be eventually unlocked via Software? Root f.e.?
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ShaKki said:
Well i was looking about thru all options etc and i found this:
but when i turn it on i get no Connection at all, it starts at G----E---3G---H---H+ and then no more connection. (Well i got no LTE data contract) but why is this option there? Could it be eventually unlocked via Software? Root f.e.?
Click to expand...
Click to collapse
I wondered this too. Think its just firmware related. But three uk keep telling me n7100 will support their 4g. So I wait to find out

Might it just be samsung beeing smart? solder an LTE chip. done!

Would be interesting to see if everyone has this option?
Sent from my GT-P3100 using xda premium

lawtq said:
I wondered this too. Think its just firmware related. But three uk keep telling me n7100 will support their 4g. So I wait to find out
Click to expand...
Click to collapse
Their 4G is just probably the same gimmick as AT&T's claim that HSPA+ is 4G.

Well even this option is in galaxy note 1 too

It's just an APN setting it has nothing to do with LTE radio's

My note 1 also has this option!
Sent from my GT-N7000 using xda premium

Guys, android gives that option, not your phone..
only the "05" devices (like N7105 and GT-9305) do have LTE capability.

masterk123 said:
Guys, android gives that option, not your phone..
only the "05" devices (like N7105 and GT-9305) do have LTE capability.
Click to expand...
Click to collapse
Correct, if you have a N7100 it is definitely NOT an LTE compatible device.
Sent from my GT-N7100 using Tapatalk 2

AjunNg said:
Their 4G is just probably the same gimmick as AT&T's claim that HSPA+ is 4G.
Click to expand...
Click to collapse
Even then the n7100 does not support dc-hsdpa, so if that's what they're calling 4g the n7100 still won't be compatible.
Sent from my GT-N7100 using xda premium

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[Q] US T-Mobile S4 won't receive 3G international

I have an S4 for myself that I bought in Thailand where I live and everything works great. Two weeks ago I bought a T-Mobile unlocked S4 from a friend who was leaving Thailand and selling everything. The unlocked T-Mobile S4 works great just like my other one except it won't receive 3G here in Thailand, only 2G. I've added the correct APN, double checked everything and I can't figure out anything else to do to get it to receive 3G. Anyone have any other suggestions?

You need to verify in which frequencies your carrier operates.
I think tmo Galaxy s4 operates in 850*MHz, 1700,1900,2100.
You can also dial *#*#4636#*#*
You'll be able to change if you want Lte, wcdma, Gsm. Try to set in wcdma (preferred).
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Thanks for the info, I'll give it a try. AIS Thailand, my carrier, uses 2100 so I figured the T-Mobile should get 3G here also. I already went into settings and set it to GSM/WCDMA auto, I didn't see the other setting about WCDMA preferred.

Try Wcdma only. Was your friend able to use 3g there?
Where are you located? Make sure you are in a 3g coverage area.
Take a look at this:
http://www.sensorly.com/map/2G-3G/TH/Thailand/AIS/gsm_52001

extrem0 said:
Try Wcdma only. Was your friend able to use 3g there?
Where are you located? Make sure you are in a 3g coverage area.
Take a look at this:
http://www.sensorly.com/map/2G-3G/TH/Thailand/AIS/gsm_52001
Click to expand...
Click to collapse
Yes we are in a 3G coverage area and my other S4 receives H+ all of the time, it's only the T-Mobile that only receives edge. I'll try the wcdma only.

Thanks for the suggestions guys but neither one works. When I set it to WCDMA only I can't get an Internet connection at all, I have to revert to the GSM/WCDMA auto to get the Edge connection. Bummer because the Edge connection here is so much slower but maybe the hardware in the T-Mobile just won't receive it.

Enable all bands for AT&T

I have an unlocked T-Mo M8 on AT&T, and am missing bands needed by AT&T.
What I have done:
Tried all the radios
Loaded the AT&T RUU
I am still on UMTS when my S4 would be on LTE
I'm at a loss, is there anyway to enable the hidden bands?

Any ideas?

The bands aren't hidden. They aren't there.
sent from my HTC One M8 using hofo mobile app

@rbiter said:
The bands aren't hidden. They aren't there.
sent from my HTC One M8 using hofo mobile app
Click to expand...
Click to collapse
Maybe that's true but I can't help but think that they are. With the AT&T M7, they issued an update to add some bands. The hardware HAS to be identical between all M8's

So far all reviews have said the T-Mobile version is missing bands 2, 5 and 7. And it also doesn't have qualcomm's antenna tuner. That right there probably was the nail in the coffin.
sent from my HTC One M8 using hofo mobile app

@rbiter said:
So far all reviews have said the T-Mobile version is missing bands 2, 5 and 7. And it also doesn't have qualcomm's antenna tuner. That right there probably was the nail in the coffin.
sent from my HTC One M8 using hofo mobile app
Click to expand...
Click to collapse
Thanks for the info. Guess I'm just stuck having spotty LTE.

I wouldn't totally give up, but as said before and the fact T-Mobile skimped out on the case and headphones in the box and the antenna tuner doesn't bode well for a 'fix'. It was probably a cost cutting move.
sent from my HTC One M8 using hofo mobile app

@rbiter said:
I wouldn't totally give up, but as said before and the fact T-Mobile skimped out on the case and headphones in the box and the antenna tuner doesn't bode well for a 'fix'. It was probably a cost cutting move.
sent from my HTC One M8 using hofo mobile app
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Here is my response from T-Mobile
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