Develop Bugs

AT&T 3G data network on the T-Mobile G2

Hello everyone, this is my first thread so please be gentle!
I currently have a G1, and hope to put it to rest very soon, and get the new G2!
(staying true to the "G")
I use an AT&T sim card on my current G1.
I have been lurking (for quite some time now) on these forums trying to find an answer to using the AT&T Sim Card on the G2. I have yet to find my answer through searching.
The capabilities I'm looking for to use on a G2 with an AT&T sim card include:
at least 3G network data speeds
normal use of calling
(I live in the US, and I don't know if that allows me to have 3G instead of EDGE)
Some things I have found:
In one other forum it said the AT&T would work on the G2, however it would only work on the EDGE network. (which I believe is 2G? please clarify if you can)
"
TMO's 3G network runs on the 1700Mhz spectrum.
AT&T's 3G network runs on the 850 and 1900Mhz spectrum.
The G2 is incapable of operating on AT&T's 3G network but will work just fine on the EDGE network.
"
the "[Guide] Subsidy Unlock, SuperCID, and Radio S-OFF" presents a sim unlock, so would that mean I could use the 3G data networks on AT&T? and have local calling? or is that something else?
Thanks in advance!

The Subsidy Unlock would allow the use of the AT&T sim card. I'm quite sure you wouldn't get the 3G+ speeds. Edge only, just like the G1.

ALB24 said:
T-Mobile HTC G2. rage+gfree worked great. Tested on both TMO & AT&T Networks and everything worked with no problems. Went from getting no radio signal due to Code unlock method, to getting any network I choose.
Click to expand...
Click to collapse
That was from someone in the sim unlock thread. Not sure if any network chosen means 2g/3g but I would think 3g would be supported.
Sent from my T-Mobile G2 using XDA App

It isn't just your phone, I don't think any phones ever come out with the correct bands for ATT and Tmobile...Even the N1 which is supposed to be a world phone was only EDGE on ATT

The T-Mobile G2 will not work with 3G on AT&T (as you stated in the original post, the 3G or UMTS bands are different). It will instead use the regular GSM bands for 2G data.
If you want a Desire Z that works on AT&T's 3G, you have to get the NAM version offered by Bell Canada (check out the Desire Z forums). Once unlocked, it'll work fine on AT&T's 3G network.

Durkbeef said:
It isn't just your phone, I don't think any phones ever come out with the correct bands for ATT and Tmobile...Even the N1 which is supposed to be a world phone was only EDGE on ATT
Click to expand...
Click to collapse
Actually, Nokia's latest smartphones are pentaband - they can use 3G on AT&T, T-Mobile, and the European networks. This includes the C7, N8, and upcoming E7.
I have the N8 right now and have used it on both AT&T and T-Mobile with 3G.

ianmcquinn said:
The T-Mobile G2 will not work with 3G on AT&T (as you stated in the original post, the 3G or UMTS bands are different). It will instead use the regular GSM bands for 2G data.
If you want a Desire Z that works on AT&T's 3G, you have to get the NAM version offered by Bell Canada (check out the Desire Z forums). Once unlocked, it'll work fine on AT&T's 3G network.
Click to expand...
Click to collapse
Ah this was extremely helpful!
Thank you all for the help as well.

This is where I got my Desire Z: http://negrielectronics.com/htc-desire-z-850-1900-3g-unlocked.html
I didn't believe it and was scared that I'd open the box and see the wrong bands but sure enough, it works. Brandon from pocketnow.com did a review on it as well with that specific device.
Let me know if you need/want screenshots for proof

slyydrr said:
This is where I got my Desire Z:
I didn't believe it and was scared that I'd open the box and see the wrong bands but sure enough, it works. Brandon from pocketnow.com did a review on it as well with that specific device.
Let me know if you need/want screenshots for proof
Click to expand...
Click to collapse
Ah proof/screenshots for AT&T 3G working on the HTC Desire Z? Sure that would be great! Thanks for your time!
I'm probably going to go for this phone then!

Here are a couple for you! Let me know if you want more. I tried taking pictures with another phone (I still have my N1) but it wasn't very clear.
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Check the baseband in my screenshot against the basebands in the dev section if you'd like. They should match up

Ah! Beautiful!!
Thank you so much I think that's proof enough! haha.
I'll definitely be getting this phone!
I searched forever for an answer, and this surely is the answer.
Finally will be putting my G1 to rest haha

You betcha! For what it's worth, this is how I found out.
http://pocketnow.com/android/htc-desire-z-with-att-3g-software-review-video
Also, try these coupon codes! $35 off orders over $400: sb35offjkh $35 off desire phones over $500: desire0430

I have a NAM Unbranded/Unlocked version that I am using on AT&T as well. I purchased mine on Ebay, it was a little cheaper than buying it through Negri (which also didn't have any when I purchased mine)
Definitely works on 3G AND can be used with a 'dumb-phone' data plan ($10/month unlimited) =D

gbarayah said:
I have a NAM Unbranded/Unlocked version that I am using on AT&T as well. I purchased mine on Ebay, it was a little cheaper than buying it through Negri (which also didn't have any when I purchased mine)
Definitely works on 3G AND can be used with a 'dumb-phone' data plan ($10/month unlimited) =D
Click to expand...
Click to collapse
How do you get the $10/mo data plan? I don't have that option!

Yeah I know this is going a little off topic (sorry mods)
but I think he's talking about individual unlimited data plan for "basic" phones?
I kept trying to pester AT&T about it.
So is it true you don't need the DataPro plan in order to acheive 3G data networks with smartphones?
And you can use the "basic" unlimited data plan for cheaper for the same 3G networks?
The AT&T reps kept saying otherwise.
Thanks again all for the replies!

slyydrr said:
How do you get the $10/mo data plan? I don't have that option!
Click to expand...
Click to collapse
I have a family plan with an Iphone line (sister). My phone (originally a BB when contract signed) and 2 Dumbphones (parents)
What I did was, take my SIM card, and put it into one of the dumbphones. Went into ATT and had them add unlimited Data to that line at the $10 option. (And cancel the BB services since I wasn't using the phone anymore - told them I sold it on CL) Went home and returned the SIM into my BB and I was all set to go with unlimited Data. The only thing that didn't work with the BB was the push Email services...
If you go to your online account with ATT it will show you an image of the device you are using with service and although it showed my device as a BB at the time, (after returning the SIM to the BB) the $10 plan continued to work without any hitches.
Now that I have a phone that is unbranded with an IMEI # that ATT doesn't recognize, they don't have an image for my phone, so they have no way to detect that I am using a smartphone.
I have used the $10 plan with many devices: BB, Touch Pro, Nokia E71, etc and have never had any problems.
htcdreamer said:
Yeah I know this is going a little off topic (sorry mods)
but I think he's talking about individual unlimited data plan for "basic" phones?
I kept trying to pester AT&T about it.
So is it true you don't need the DataPro plan in order to acheive 3G data networks with smartphones?
And you can use the "basic" unlimited data plan for cheaper for the same 3G networks?
The AT&T reps kept saying otherwise.
Thanks again all for the replies!
Click to expand...
Click to collapse
Yes that is the plan that I am referring to and yes the reps are full of crap. ATT wants to charge you more for having a 'smartphone' even though you use the exact same data, frequencies, and service as other users. There are many ways around this, but going into an AT&T store and trying to 'reason' with them is not one. I suggest the method I used with a dumbphone. Alternatively, you can do the same process online through account manager without having to deal with a live person.

Side question here. I'm thinking about giving the G2 to a friend on AT&T. The thing is that he doesn't want to pay for a data plan. Will AT&T force a data plan onto the line? Also un checking data enabled, will that stop all data over the cellular network so he doesnt get charged at all?

mayurolla said:
Side question here. I'm thinking about giving the G2 to a friend on AT&T. The thing is that he doesn't want to pay for a data plan. Will AT&T force a data plan onto the line? Also un checking data enabled, will that stop all data over the cellular network so he doesnt get charged at all?
Click to expand...
Click to collapse
I don't think they can force a data plan as the phone is not being subsidized by ATT because of a contract.
In theory disabling data will stop all data but in reality he will probably still use a bit of it. Search the forums as I remember another user having the issue of zero data use.
Sent from my HTC Vision using XDA App

I finally did the whole unlock, super CID thing using gfree and adb.
Just want to make that no one has found a way to get 3G speeds on the G2?
Or is EDGE my only choice? I understand the whole band thing as well.

No. From what I've gathered on the g2 being on at&t, its impossible as the radio hardware is different and will not pick up the 3g bands. Flashing a different radio to match up the bands won't work, either (it will possibly brick your phone, actually.)
Go with the NAM Desire Z from bell canada. Its your best bet.
Sent from my HTC Vision running GingerVillain 1.4

[REQ] replace 3g icon to H+ or 4g

can someone make a theme or rom to replace 3g to h+ or 4g?
I using on att, it always show 3g icon only!
yes, I connected to att 21mb hspa+ but this stock rom only show 4g on tmobile 42mb network, anything less it just show 3g.

netnerd said:
can someone make a theme or rom to replace 3g to h+ or 4g?
I using on att, it always show 3g icon only!
yes, I connected to att 21mb hspa+ but this stock rom only show 4g on tmobile 42mb network, anything less it just show 3g.
Click to expand...
Click to collapse
with ATT you cant connect to 4g with the t989 galaxy, hence you only get the 3g icon. To get 4g on att you need to buy the att version of the galaxy

drunknmunkie said:
with ATT you cant connect to 4g with the t989 galaxy, hence you only get the 3g icon. To get 4g on att you need to buy the att version of the galaxy
Click to expand...
Click to collapse
He knows that mate.
Sent from my Hercules with xda Premium.

Just curious... why wouldn't you just get the AT&T version? Wouldn't you have a better user experience? Doesn't the AT&T version have the Exynos processor and superior graphics processor? And you miss out on AT&T's HSPA+?
Can't think of a reason anyone would choose to go with the T-Mobile's one on AT&T's network unless you got it free or something. Even then, I'd sell it and go buy the AT&T version...

TheSeanTeam said:
Just curious... why wouldn't you just get the AT&T version? Wouldn't you have a better user experience? Doesn't the AT&T version have the Exynos processor and superior graphics processor? And you miss out on AT&T's HSPA+?
Can't think of a reason anyone would choose to go with the T-Mobile's one on AT&T's network unless you got it free or something. Even then, I'd sell it and go buy the AT&T version...
Click to expand...
Click to collapse
why? cus i dont like att version with 4.27" that look like 4 inches!
i used to have galaxy s2 uk version with the same 4.27" screen, after a week i sold it on ebay.
on att i do get HSPA+ on tmobile galaxy s2, it just the icon is showing 3G!

netnerd said:
why? cus i dont like att version with 4.27" that look like 4 inches!
i used to have galaxy s2 uk version with the same 4.27" screen, after a week i sold it on ebay.
on att i do get HSPA+ on tmobile galaxy s2, it just the icon is showing 3G!
Click to expand...
Click to collapse
are you sure? the tmobile versiobn doesn't have the radios to connect to the att 4g. look at the bands on the back of the box, it's not compatible with att 4g.

maybe you kids can tell me what is wrong with this screenshot!
screenshot of tmobile galaxy s2 with att simcard.
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it shows i getting 4425kbps and network is Hspa. but the icon is showing 3G !

netnerd said:
maybe you kids can tell me what is wrong with this screenshot!
screenshot of tmobile galaxy s2 with att simcard.
it shows i getting 4425kbps and network is Hspa. but the icon is showing 3G !
Click to expand...
Click to collapse
"HSPA supports increased peak data rates of up to 14 Mbit/s in the downlink and 5.76 Mbit/s in the uplink."
"3G HSPA of High Speed packet Access is the combination of two technologies, one of the downlink and the other for the uplink that can be built onto the existing 3G UMTS or W-CDMA technology to provide increased data transfer speeds"
TLDR:
HSPA = 3g
Tmobile 4g = HSPA+.

drunknmunkie said:
"HSPA supports increased peak data rates of up to 14 Mbit/s in the downlink and 5.76 Mbit/s in the uplink."
"3G HSPA of High Speed packet Access is the combination of two technologies, one of the downlink and the other for the uplink that can be built onto the existing 3G UMTS or W-CDMA technology to provide increased data transfer speeds"
TLDR:
HSPA = 3g
Click to expand...
Click to collapse
so now there is a HSPA *and* 3G HSPA? haha

netnerd said:
can someone make a theme or rom to replace 3g to h+ or 4g?
I using on att, it always show 3g icon only!
yes, I connected to att 21mb hspa+ but this stock rom only show 4g on tmobile 42mb network, anything less it just show 3g.
Click to expand...
Click to collapse
Just attach systemUI.apk and framework.apk of the ROM you are using and I will see what I can do for u...
Sent from my SGH-T989 using XDA App

netnerd said:
maybe you kids can tell me what is wrong with this screenshot!
screenshot of tmobile galaxy s2 with att simcard.
it shows i getting 4425kbps and network is Hspa. but the icon is showing 3G !
Click to expand...
Click to collapse
Mate, I told you before on a different thread, HSPA = 3.5G. Looks at your speeds, thats not 4G.

kenvan19 said:
Mate, I told you before on a different thread, HSPA = 3.5G. Looks at your speeds, thats not 4G.
Click to expand...
Click to collapse
mate, why don't you do a speedtest on your tmobile phone!
that's not 4g speed! why is the icon showing 4g??

It's just an icon... You aren't getting hspa+ ... Why have the icon lie to you?
Sent from the Galaxy, 2 stars to the left.

Wish there was an H icon we could use instead of the 4g one.
Deebo took your bike too?

Not sure if you guys have hspa+ on telus but if you don't then that's why it says 3g. Telus probably has it show 4g for hspa but the T-Mobile version shows hspa as 3g. This is my theory anyway
Btw, prepare to be stoned for posting in the wrong section. Questions like this belong in the general section
Sent from my SGH-T989 using Tapatalk

Please don't post this in the developement section. If your post has a "?" In it it most likely belongs in the Q&A or General section. If you don't get an answer there message another member or dev. Don't immediately find the easy way out and post here. I know the devs will probably move this to the correct place but were not kids and no one needs to be cleaning up after us.
Sent from my SGH-T989

Sorry. I only posted in the dev section as this happened when flashing a custom rom...
ReDz

redz1234 said:
Sorry. I only posted in the dev section as this only happened when flashing a custom rom...
ReDz
Click to expand...
Click to collapse
Yes but it is still a question and not a development.
Sent from my SGH-T989

mikeyinid said:
Not sure if you guys have hspa+ on telus but if you don't then that's why it says 3g. Telus probably has it show 4g for hspa but the T-Mobile version shows hspa as 3g. This is my theory anyway
Btw, prepare to be stoned for posting in the wrong section. Questions like this belong in the general section
Sent from my SGH-T989 using Tapatalk
Click to expand...
Click to collapse
Telus has about 70% deployment of 42mbit HSPA+ over it's entire footprint. It should act the same, but I would theorize that it may be based on the frequency that is doing the talking. Most or all of the roms here I believe are a T-Mobile base. If there was one built off the Telus base I think you'd see the opposite happen.

I'm on Telus and my icon reflected 4G before flashing. From what I understand Telus is HSPA+ so 4G would be correct but since flashing I get the 3G icon as mentioned in an earlier post.
ReDz

GSM Nexus speed on AT&T (Austin, TX)

I don't know if this is a question or more of a poll...
I think I'm getting horrible 3G speeds here in Austin, TX. It also seems like I'm being capped. When I have full bars, speedtest always shows around a 3Mbps down and 1 Mbps up transfer speeds. I've tested this in many places around North Austin / Round Rock.
What speeds are others getting?
Could my sim card or data plan need tweaking from AT&T? I ask this because I was previously on a Galaxy Note with LTE and they had to switch me to a LTE plan at the time. Outside where I work, the LTE signal strength is very strong and I've gotten amazing speeds with the Note. But with the Nexus, I get the 3/1 speeds.
Any ideas?

What are your APN settings, also are you on the smartphone or medianet plan?

allyourbase said:
What are your APN settings, also are you on the smartphone or medianet plan?
Click to expand...
Click to collapse
Thank you for helping me.
I'm on a smartphone plan. Which APN settings are you wanting? There are a lot!

I live in Bastrop, like 30 miles east of Austin, and am getting about 2.5-3 down and .4-1.2 up. I was pretty disappointed because I thought I had remembered pulling more on my Captivate(smart phone plan though), too bad it broke. I'm using the MediaNet plan on ATT with AndroidHD Revolution(4.1.1) and Franco r223.
Sent from my Galaxy Nexus using xda premium

If you're on the smartphone plan, I'm assuming you're using the "phone" apn? Also, you're aware that you can get unlimited hspa with the non smartphone plan formerly known as media net.
Who knows this could be purely speculation but let's say AT&T already has your imei number you could be automatically bumped to the same smartphone data plan if you attempt to use the dumb phone plan.
I am unsure how quick AT&T is figuring this stuff out. I had an AT&T GS2 and switched to a dumb flip phone then bought a GNex, took the sim card out of the dumb one and transplanted into the GNex and boom, unlimited data and texting for $30 a month.

I'm already on an unlimited smartphone plan. I chatted with AT&T support and there are currently no restrictions on my data plan. He also switch IMEI from the Note to the Nexus and moved me from a LTE plan to 3G plan. Data speeds remain the same.
I wonder if anyone with a GSM Nexus in Austin is able to get > 3Mbps...

Try the phone apn?

allyourbase said:
Try the phone apn?
Click to expand...
Click to collapse
I'm sorry. I guess I don't know what you mean?

those speeds are normal for a 3G smartphone. Even with HSPA+. Remember, the Unlocked Nexus isn't LTE.

dwd3885 said:
those speeds are normal for a 3G smartphone. Even with HSPA+. Remember, the Unlocked Nexus isn't LTE.
Click to expand...
Click to collapse
I just did a test a few days ago and got this...
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dschreiber69 said:
I just did a test a few days ago and got this...
Click to expand...
Click to collapse
You are on a SGS2 with HSPA+? Which city are you in?

Try testing with actual downloads instead of speed test sites. My speed test (I'm in northern Colorado) always tells me about 3Mb/s down 1Mb/s up too, but on actual downloads and manual tests, I hit 8-10 Mb/s even in kind of rural areas.

I'm in Indiana and get around 3-4mbit down and 1-1.5mbit up. The fastest ive seen once is 7mbit down.
Sent from my Galaxy Nexus using xda app-developers app

I remember with the captivate, the speeds would vary widely depending on which part of town I was in. But with the Nexus, it just seems very artificial to hit right around 3 down / 1 up every time. Almost like AT&T is capping it similar to what they did to the captivate. The modem AT&T put on the captivate was throttled for whatever reason but flashing an international modem removed it.

flintdragon said:
I remember with the captivate, the speeds would vary widely depending on which part of town I was in. But with the Nexus, it just seems very artificial to hit right around 3 down / 1 up every time. Almost like AT&T is capping it similar to what they did to the captivate. The modem AT&T put on the captivate was throttled for whatever reason but flashing an international modem removed it.
Click to expand...
Click to collapse
ATT uses QoS to determine which devices on their network receive priority as well. Iphones receive the most for cell phones of course.
Sent from my Galaxy Nexus using xda app-developers app

In san diego the best and average i get is 3.5 mbps down. I am on the unlimited medianet plan
Sent from my Galaxy Nexus using xda app-developers app

flintdragon said:
You are on a SGS2 with HSPA+? Which city are you in?
Click to expand...
Click to collapse
Yeah. I had to send my Gnex in for service. Only got to use it for 17 days
Harbor Springs Michigan

Sorry to bring back an old thread, but I am wondering on this myself. I bought my gnex from google play, got it and noticed that the data rates are pretty steady at around 2.5 - 3.5 max down, and .9 - 1.2 up. The gnex has a 21Mbit HSPA+ radio in it, so in theory it should accept whatever AT&T can push to it. However, I came from an Atrix 2, and can vouch for the fact that the Atrix 2 when using the PTA APN on HSPA+ (no LTE for about 200 miles where I'm at) will download consistently between 7 - 9 Mbit... Same server on speediest.net, same APN, same place, the signal is within 1dBm of each other.
Because I have found no base band that can change this, nor any APN setting I am starting to believe that if AT&T gets an IMEI of a phone that it doesnt recognize, they will throttle it.
Any one else have any insight? 3.5Mbit is plenty, but I'd like to get the same speeds as what I consider a lesser device.
If I could find a way to change the IMEI I'd test this theory.

^^^ Suprisingly, Its not att at all. Ask anyone on these forums, samsung has notoriously bad radios. Signal and cell strength just are not that great. And you can you can especially feel the difference coming from a motorola device. They have the strongest radios of all the major oems by far. No one even comes close.
Sent from my Galaxy Nexus using xda app-developers app

thekurrgan said:
Sorry to bring back an old thread, but I am wondering on this myself. I bought my gnex from google play, got it and noticed that the data rates are pretty steady at around 2.5 - 3.5 max down, and .9 - 1.2 up. The gnex has a 21Mbit HSPA+ radio in it, so in theory it should accept whatever AT&T can push to it. However, I came from an Atrix 2, and can vouch for the fact that the Atrix 2 when using the PTA APN on HSPA+ (no LTE for about 200 miles where I'm at) will download consistently between 7 - 9 Mbit... Same server on speediest.net, same APN, same place, the signal is within 1dBm of each other.
Because I have found no base band that can change this, nor any APN setting I am starting to believe that if AT&T gets an IMEI of a phone that it doesnt recognize, they will throttle it.
Any one else have any insight? 3.5Mbit is plenty, but I'd like to get the same speeds as what I consider a lesser device.
If I could find a way to change the IMEI I'd test this theory.
Click to expand...
Click to collapse
Thanks for this update. just saw it. It's frustrating knowing our phones could do so much better.

Phone has no service on Band 2 (PCS/WCDMA 1900)

I haven't tried to root this handset yet. This is my #2 handset. The 1st the screen broke so I used my insurance to get another. I work with phones all day long including iPhones, other T-Mobile phones, AT&T and non-GSM phones such as Verizon for example. I deal with carriers such as T-Mobile, Simple Mobile, H20 and non-GSM carriers such as Boost Mobile. So i'm saying that I basically deal with it all. Now the problem i'm having is my own phone. I set to WCDMA only and i'm on the stock ROM of course. The phone will set itself from Band 4 to Band 2 from time to time however, when it sets to Band 2 there is no service until it swaps back to Band 4. I have troubleshooted and called T-Mobile and Samsung to talk to them to find out whats going on. Both of the handsets have done this #1 and #2. The service menu *#0011# shows that it is on Band 2 and it is receiving 2 to 3 bars of service but the availability is LIMITED. The About Phone -> Status menu shows that it is Out Of Service. And the carrier is unknown. The notifications area shows searching... or no service. The type of network is showing Unknown:0. This only happens on Band 2 WCDMA on my phone. On any other phone it works with no issue. I am wondering why my specific phone is not connecting to this band properly. T-Mobile has told me to contact Samsung. Samsung said they can't help me apparently. So what do you think the reason is why I can't connect? If you need screenshots I can take them.

I have a similar problem with my first note 2. My note 2 gets signals sometime and I cannot get 4g speed. I called up tmobile they where unable to fix the problem. So most likely somthing screw up on your phone and use your insurance to exchange a working one.
Sent from my SGH-T889 using xda app-developers app

culua said:
I have a similar problem with my first note 2. My note 2 gets signals sometime and I cannot get 4g speed. I called up tmobile they where unable to fix the problem. So most likely somthing screw up on your phone and use your insurance to exchange a working one.
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
Its never worked properly on neither of the Note IIs i've had. So 2 devices with the same issue. I believe the issue is wide spread and there are many others with the refarmed band connecting issue. The phone should have come with the options of 1700 and 1900 WCDMA switching or both. Unknown:0 just means theres no option for it so it doesn't know what to show. However, I can't explain why its happening on the Note IIs only.

Another person, as well as myself, posted about this problem about a month ago. We both had the same exact issue... 4G works, 3G doesn't at all. Edge works, GPS works... 3G DOES NOT send/recieve any data. It has to be a T-Mobile issue and from the looks of it they are trying to ignore it. Honestly it becomes a huge issue when you're traveling and can't always access WIFI or 4G. It's something I would leave T-Mobile for... so they should consider tackling the problem and fix it.

acideater said:
Another person, as well as myself, posted about this problem about a month ago. We both had the same exact issue... 4G works, 3G doesn't at all. Edge works, GPS works... 3G DOES NOT send/recieve any data. It has to be a T-Mobile issue and from the looks of it they are trying to ignore it. Honestly it becomes a huge issue when you're traveling and can't always access WIFI or 4G. It's something I would leave T-Mobile for... so they should consider tackling the problem and fix it.
Click to expand...
Click to collapse
This could be the same issue i'm having due to being in a limited 4G area its mostly 3G.
However, I can access 3G and 4G on phones that are not T-Mobile like AT&T Androids and iPhones and it works with no problem. I am wondering if this applies to the Galaxy S III and Note I also as I haven't tested that out yet. That's why I pointed it out at Samsung.
I wonder if it will be fixed when LTE Radio gets unlocked.
Developers should take notice that deal with the combo WCDMA 1700/1900 handsets to create a switch to go from WCDMA 1700 or 1900 and to use a combo of 1700 + 1900. So we could have the option to switch to a specific band rather than it jumping from 2 to 4 then back to 2 and 4 again.
Are you rooted?
Are you running a Custom ROM?
Have you flashed a Radio from anything other than a T-Mobile Radio?
Is it even safe to flash a radio other than T-Mobile?

Similar problem. Network data stopped sometime this afternoon. Tried sim in my sgs2 and worked fine.thinking of going to tmo store.
Sent from my SGH-T889 using Tapatalk 2

Not sure but the issue with band 2 might be LTE related and the nonworking scenarios are possibly just occuring as tmo expands their towers... not sure if im way off or not but I read that tmo is pushing some to 1900 to make room for LTE on their 1700... there for, again just a hunch, band 2 might be somewhat sporadic due to it being reconfiged to accommodate their LTE rollouts
Sent from my SGH-T889 using xda app-developers app

I understand what your saying but its a weird occurrence to only not be working on the SGN-II. When I can hold another persons phone in the same spot with 1900 only and it ends up working. Only thing I can come up with is maybe blocking specific devices but I have no clue. Putting people on bands that don't work properly is something T-Mobile shouldn't be doing. If you for example are on that band and an emergency call comes through well you missed it till your back to the other 2 bands that work. I always root my devices however, i'm a lil scared to due to the fact that I might lose my EFS. Even tho I know I can backup my EFS. But then again I could lose it right after root. I don't understand why Samsung put vital info into a folder that could be removed.
Anyways sorry for the rant. I'm glad to know i'm not the only one with the problem.

The GNII is one of only like 3 phones that come with the LTE "on/off switch" so thats why Im speculating still, again I really have no clue but having read a few topics (like you wanted to know everthing about tmo efs/modem/imei/etc before modding anything) I feel like the LTE rollout and the band 2 issue going hand in hand
Sent from my SGH-T889 using xda app-developers app

PhxDroid86 said:
The GNII is one of only like 3 phones that come with the LTE "on/off switch" so thats why Im speculating still, again I really have no clue but having read a few topics (like you wanted to know everthing about tmo efs/modem/imei/etc before modding anything) I feel like the LTE rollout and the band 2 issue going hand in hand
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
I think know whats going on. In your *#0011# Service Menu. When it switches to Band 2 the MCC-MNC change. It shows something like 310 260 when its on T-Mobile but 310 410 when its on AT&T. When on Band 2 for some reason it will swap from 260 on Band 4 to 410 on Band 2 therefore identifying it as an AT&T network. Why is it trying to connect to AT&T? I have no idea.

Viper Matrix Wireless said:
I think know whats going on. In your *#0011# Service Menu. When it switches to Band 2 the MCC-MNC change. It shows something like 310 260 when its on T-Mobile but 310 410 when its on AT&T. When on Band 2 for some reason it will swap from 260 on Band 4 to 410 on Band 2 therefore identifying it as an AT&T network. Why is it trying to connect to AT&T? I have no idea.
Click to expand...
Click to collapse
I personally havent experienced any issues with my data/sms (then again if youre not receiving text/mms then how would one know they are experiencing problems in the first place?)
Because I havent had any issues I havent really tried to test my connection enough to know when im band 2 or band 4 or what exact mcc-mnc changes are occuring... for those worried about messing up their phones they need to just make sure they are always flashing a rom built foe their carriers' phone model and also make sure that each flash performed doesnt affect the modem.. (I know the modem part is hard due to roms being based off newer releases but as long as you are following my first suggestion (verify you are flashing the right carriers' phone model download) then there should never be an issue
Sent from my SGH-T889 using xda app-developers app

PhxDroid86 said:
I personally havent experienced any issues with my data/sms (then again if youre not receiving text/mms then how would one know they are experiencing problems in the first place?)
Because I havent had any issues I havent really tried to test my connection enough to know when im band 2 or band 4 or what exact mcc-mnc changes are occuring... for those worried about messing up their phones they need to just make sure they are always flashing a rom built foe their carriers' phone model and also make sure that each flash performed doesnt affect the modem.. (I know the modem part is hard due to roms being based off newer releases but as long as you are following my first suggestion (verify you are flashing the right carriers' phone model download) then there should never be an issue
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
T-Mobile's response is: The phone is designed to connect to the best network. Once Band 4 on T-Mobile has no signal while on 3G/4G WCDMA it will flop over automatically to Band 2 on AT&T. Due to the 7 year agreement we have with AT&T you should be able to access the network. However, we have lost a bunch of ROAMING AGREEMENTS recently. "Apparently AT&T DID NOT keep their promise of a nationwide agreement". Therefore your city might be on this list. This may be why you can't access AT&T. There is nothing we can do right now. Its a waiting game on when T-Mobile rolls out improved coverage onto 3G/4G 1700 WCDMA and 3G/4G 1900 WCDMA on its own. So in the future it is less likely that you will be put on AT&T. However, it is still possible. Sorry but we DO NOT have any CeI-Fi devices as I would offer you one as we are SOLD OUT. We don't expect any Cei-Fi devices to be in till this Summer.
So this device is supposed to go onto AT&T apparently and its not supposed to show as Roaming which is why Data Roaming Checked/Unchecked doesn't work.

Thank you! Finally a complete answer lol.
Is it possible to make it so band 2 only sticks with T-Mobile?

acideater said:
Thank you! Finally a complete answer lol.
Is it possible to make it so band 2 only sticks with T-Mobile?
Click to expand...
Click to collapse
No and I found how to take screenshots. Wish I had pulled out my S-Pen out sooner.
Service Mode:
When on T-Mobile WCDMA, about to lose signal as MNC 260, lost signal after -113 dBm:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
When T-Mobile WCDMA signal is lost, flopping onto AT&T as MNC 410:
Status Menu:
When on T-Mobile WCDMA, about to lose signal as In Service, UMTS: Mode 3, Carrier as T-Mobile:
When on AT&T WCDMA, lost signal and flopped as Out Of Service, Unknown Network Mode 0, Carrier as Unknown:
Well they sold out of the Cel-Fi once they actually dropped the 2 YR requirement extension and then they got plagued with calls and SOLD OUT. I told her thats not good that means that the network is crap. She laughed and agreed. But look at the good AT&T signal makes me want to sometimes switch but everytime I think of leaving I couldn't.
According to the info I have gotten in my area GSM is approx. 485 meters away and WCDMA is 1,110 meters away in the opposite direction.

Figured out my problem. Phone got blacklisted.thanks eBay:thumbdown:
Sent from my Nexus 7 using Tapatalk HD

Now I can ROAM onto AT&T and have everything running except 4G is actually EDGE speed. I can even select AT&T as the main network.

LTE Band 2 1900MHz capability
I would like to know if an unlocked Tmobile note 2 has the capability to work on AT&T LTE Band 2 1900 MHz?
I know it works on AT&T GSM-1900 MHz frequency. it will even work on LTE band 17 700MHz frequency.
Preeese hrrp

Sprint Note 4 running on AT&T ???

Hi guys i have been skimming this forum for years learning to root different phones and tablets, but only as a guest.
Today i had my sprint note 4 successfully unlocked and it now runs on AT&T through straight talk.
I am getting 10 times better service signal and data wise with hspa over sprints horrible 3g service in Virginia.
Anyway i am happy with everything, but i have a question. I have cross referenced the specs between the att, tmobile, verizon and sprint variants of the note 4 and all show they have the same bands available, what are the chances that someone has gotten AT&T true 4g lte working on a sprint branded phone, is it possible and if not why?.
Thanks in advance
Sent from my SM-N910P using Tapatalk

If this is true. Good. Lots are speculating no data on the other variants while on the sprint note 4. So are you complete domestic unlocked or just unlocked for international. ?
Sent from my SM-N910P using XDA Free mobile app

Complete domestic unlock, able to use any mvno for AT&T or TMobile, im using straight talks AT&T network personally. Here is pics of my status, i have wifi on here at home is why it says data not connected, but im getting 7.9mb/s dl on hspa consistently
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Sent from my SM-N910P using Tapatalk

How were you able to unlock the sprint note 4?

http://idoneapps.webs.com/sprint-galaxy-global-unlock
Was recommended by another member on here, dude from this sight rooted and did the complete unlock remotely for me for 50 bucks. Cant beat it at all! Great customer service and the guy literally answered like 40 emails back and forth of questions i had before i even paid him.
Cant express how happy i am to actually be able to use my note 4 as intended. It was a paperweight with sprint service.
Sent from my SM-N910P using Tapatalk

And here is an updated screenshot of my status without wifi to show i am getting data
Sent from my SM-N910P using Tapatalk

Thanks for your kind words guys. Yes I am doing these 12 hours a day.
You get Unlocked, debranded, MSL read and WiFi Hotspot and USB Tethering enabled.
I look forward to hearing from you, and I am easy to get in contact with

idone said:
Thanks for your kind words guys. Yes I am doing these 12 hours a day.
You get Unlocked, debranded, MSL read and WiFi Hotspot and USB Tethering enabled.
I look forward to hearing from you, and I am easy to get in contact with
Click to expand...
Click to collapse
So I'm unlocked with gt too. I am still needing further help or no? Thanks.
Sent from my SM-N910P using XDA Free mobile app

Yes thanks.

droe2001 said:
Complete domestic unlock, able to use any mvno for AT&T or TMobile, im using straight talks AT&T network personally. Here is pics of my status, i have wifi on here at home is why it says data not connected, but im getting 7.9mb/s dl on hspa consistently View attachment 3398820View attachment 3398821
Sent from my SM-N910P using Tapatalk
Click to expand...
Click to collapse
Hspa is good enough for me . Where i live at in Chicago it's miles faster than spark on sprint

bonebeatz1234 said:
Hspa is good enough for me . Where i live at in Chicago it's miles faster than spark on sprint
Click to expand...
Click to collapse
Same hear where i live we havent even gotten 4g at all, sprint doesnt have a native network and rely off a local cell provider, they have been promising me 4g since 2013. My phone was a brick until i unlocked it and moved to straught talk, couldnt be happier
Sent from my SM-N910P using Tapatalk

droe2001 said:
Same hear where i live we havent even gotten 4g at all, sprint doesnt have a native network and rely off a local cell provider, they have been promising me 4g since 2013. My phone was a brick until i unlocked it and moved to straught talk, couldnt be happier
Sent from my SM-N910P using Tapatalk
Click to expand...
Click to collapse
Its really 3g to be honest. They got me

bonebeatz1234 said:
Its really 3g to be honest. They got me
Click to expand...
Click to collapse
Well this is att straight talk hspa on my unlocked sprint note 4. The 28mbps one was wifi. The 5mbps one was while driving the other two are stationary
Sent from my SM-N910P using Tapatalk

I unlocked mine with a z3x box but I am currently unable to get HSPA or 4g, only 3g with at&t gophone. Any clue as to what is different between our devices? I have the sprint variant as well.

j.brown419 said:
I unlocked mine with a z3x box but I am currently unable to get HSPA or 4g, only 3g with at&t gophone. Any clue as to what is different between our devices? I have the sprint variant as well.
Click to expand...
Click to collapse
Try the nv item edit ie use nv calculator, qpst/qxdm, enable extra gsm/umts/lte bands. Then set your apn up with LTE or unspecified as bearer

supreme83 said:
Try the nv item edit ie use nv calculator, qpst/qxdm, enable extra gsm/umts/lte bands. Then set your apn up with LTE or unspecified as bearer
Click to expand...
Click to collapse
My phone wont allow me to edit nv with qpst/qdxm, it fails like 16% through.

j.brown419 said:
My phone wont allow me to edit nv with qpst/qdxm, it fails like 16% through.
Click to expand...
Click to collapse
there may be something wrong with your modem. I would suggest resetting modem changes and provisioning with a reset + ##786# + ##72786#, etc and put everything back to stock and start over. ..all just a suggestion as I am fairly sure that is the best you'll get out of the Note 4 (N910P)
you may want to go to frequencycheck and make sure the bands your attempting are even a possibility ...https://www.frequencycheck.com/comp...n920p-galaxy-note-5-td-lte-32gb-samsung-noble

idone said:
Thanks for your kind words guys. Yes I am doing these 12 hours a day.
You get Unlocked, debranded, MSL read and WiFi Hotspot and USB Tethering enabled.
I look forward to hearing from you, and I am easy to get in contact with
Click to expand...
Click to collapse
BRO WTF i used your app and it uninstalled my root access and could not access the superuser menu built into my phone. I was forced to restore an earlier backup and lost mad amounts of data

j.brown419 said:
I unlocked mine with a z3x box but I am currently unable to get HSPA or 4g, only 3g with at&t gophone. Any clue as to what is different between our devices? I have the sprint variant as well.
Click to expand...
Click to collapse
May be your sim card. Is it a 4g sim?
Also make sure your apn is correct. Check this: https://www.att.com/esupport/article.html#!/wireless/KB424489

I am getting true 4G LTE through straight talk on my Sprint note edge. I used idoneapps to unlock it. Enabled ehrpd, enabled lte, and set 1x to hybrid. After restart I went to apn settings and selected automatic and used the straight talk apn that my lte Sim card came with. I am using a Sim card I got from a zte straight talk phone, not the Sim card packpack.