Develop Bugs

Help! 3G is not working after Hard-SPL and unlocked TP2

I'm new here and I enjoyed this site very much. I have one problem with my TP2. Somehow, 3G network is not working after I installed Hard-SPL and unlocked T-Mobile TP2 switch to AT&T sim card. Everything is working fine with AT&T's sim card I was able to made phone calls, received, SMS, and web browsing. ATT 's 3G network is available around my home, but I can not get 3G on TP2 instead a EDGE network. Can unlocked TP2 handle AT&T's 3G network? or a .cab file I can download to fix this?

idk for sure but i think t mobile uses a different frequency for 3g from at&t so if they are you are stuck with edge speeds on at&t man sorry

I have the tmobile TP2 and i can confirm from talking with ATT that the phone does support ATT BUT i was unable to use the phone on 3g. The phone DOES support the signals for 3g but am still unable to access the towers in my area. I think the phone may be hard set to look at tmobile towers, is there any way i could reset the device to open up its tower usage? Hopefully i can get an answer but no tmobile TP2 users arent screwed in the US we just need to find a fix

It was my understanding that the tmobile tp2 does NOT have 850/1900mhz 3g on it. It does have aws 1700 for sure. Not sure about 2100mhz though for overseas.

This issue has been covered many times in the numerous AT&T threads on this board.
I'm sorry to tell you that the T-Mobile TP2 hardware radio was limited to using 3G over the 1700/900Hz frequencies, while AT&T currently uses 1900/850Hz only. It's unlikely that any change can be made to the radio software wise to fix this issue.
Just to make things clear the issue has nothing to do with Hard SPL or custom roms.

T-Mobile UMTS 1700/2100 Mhz
T-Mobile 3G runs on UMTS 1700 up and 2100 down. Unless you have a device that runs on those specific frequencies, EDGE is the best you can do with T-Mobile if you opt to run on their service.

ATT offers UMTS or 3G using 850mhz(the old TDMA band) and 1900mhz. While T-mobile offers HSDPA (technically 3.5g part of the UMTS specification) using 1700MHz for uplink and 2100MHz downlink.
Because HSDPA is part of the UMTS spec, it’s backward compatable. However, you have the limiting factor beging that the frequencies the individual carriers use to transmit the data.
Europe and Asia’s 3G runs on 1900/2100mhz. North and south America is supposed to use the (AWS) 3G spec using 1700/2100mhz
ATT didn’t want to wait, like T-mobile is doing, for homeland security to vacate those frequencies and launched on 850/1900mhz instead

ace.app said:
ATT didn’t want to wait, like T-mobile is doing, for homeland security to vacate those frequencies and launched on 850/1900mhz instead
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I heard that t-mobile did not have enough spectrum in many areas to launch 3g in its existing 1900mhz. At&t doesn't have that issue, or as bad.

Im gonna make this real easy for u. The tmobile tp2 will not work on at&t 3g. The 3g bands are different

Telus TP2 Radio(s)

Exactly what cellular radios does this phone [Telus TP2] have?
My carrier [Telus] has recently completed their 3G overlay, and I'm still showing "EV".
Should I be talking to them about fixing this, or...?
It was (is?) my understanding that this phone was fully 3G capable.

Can someone help me with this?
As far as I can tell, my phone should support the Telus overlay of HSPA on their CDMA network, however I'm showing "EV" an my network type on the notification bar.
I visited a Telus store, and talked to a rep, who just babbled to me about how my SIM was "registered" as a CDMA phone, and therefore I couldn't use HSPA.
>_>
Thoughts?
EDIT: The rep also fed me this convoluted bullsh*t about how when I'm roaming, I'll be able to be on HSPA networks, so I'll get better bandwidth roaming than on my home network...

Wow no one knows the answer to this?
I've searched, and there's no answer, per se, just descriptions of Telus' technology and the antennae in the TP2, which seems to indicate that the TP2 should be able to get on the Telus HSPA network...

I have a SIM-unlocked Telus Touch Pro2 I bought off Craigslist, figuring it'd be good to go when the HSPA network rolled out (Only four months later!). As I understand it, the telus model can make and receive calls on quad-band GSM frequencies, but only use EDGE speeds for data. Has to do with the firmware for the chipset inside the phone. The only HSPA 3G band the phone can use is 2100 Mhz, which is the bad used in Europe, not Canada. It's a major piss-off, especially when a month ago the stores made this out to be the top-of-the-line phone, perfect for ever and ever.
It would seem that should Telus decide to plug in some firmware upgrades, they could activate the new 3G bands, but why bother? We've already signed away our souls to the company.
Who knows, maybe they'll fix it when they release Windows 6.5 for our rig. Because that's on the top of the to-do list, right?

Well there are new radios that we could flash...would that change anything?

Now I may be misinformed but I think that the Telus version is a CMDA phone with GSM capabilites on some frequencies. I do not think it will work on HSPA in Canada as they use different frequencies (850 and 1900). This is why so many people were waiting for the ATT version to come out as it uses those frequencies.
Remember GSM does not equal 3G.

What I would like to know is whether the distinction between 3G and GSM is on the hardware side, firmware side, or software side. Telus would have you assume it's all the hardware's fault, but I'm not sure on that one.

From everything I have read its the chip in the phone that isnt programmed/capable of doing the frequencies required. It may actually be a second chip but I cant confirm that. Other posts have stated that there wont be a software fix to "unlock the frequencies" needed.
GSM is a cellular line and 3G is a data connection.

I just purchased an At&t Tilt 2 unlocked for use on Telus 3G+ network. The Telus Touch Pro 2 is a CDMA , Quadband GSRM and UMTS/HSDPA 2100. The Telus TP2 will only work with EVDO data on the Telus network. If you unlock it for use with Rogers it will work on GSRM with Edge data. That is why I have ordered the At&t Tilt 2. Unfortunately Telus won't honour my unlimited data plan and say it is only for EVDO and that I have to change to one of their current plans to have HSDPA. Like all of the networks, they get your money one way or the other. I'm pleased that with the Tilt 2 I am free to switch providers here in Canada and still get 3G as well as when I travel in Europe.

[Q] AT&T Tilt2 on T-Mobile no 3G or HSDPA only Edge

Looked everywhere but have only found a few comments mainly regarding the AT&T network.
I have a AT&T branded Tilt-2 with TP2_Core_Cell_Evo_V3.1_(23127) and am on the T-mobile network.
In my area we have HSDPA and 3G, and my HTC 3G Dash shows those connections and runs from 583K up to 898K.
My Tilt2 on the other hand runs between 36K and a max of 156K (usually its under 50K)
I have tried everything and a ton of different radios and nothing seems to help.
I can't believe I am the only one, and I am sure its in the forum but I havent been able to find it and I have been looking for 2 days now. Does ANYONE know if there is a solution to this or am I stuck with a great looking phone and ROM that is slower than my old HTC Universal.
So I am starting this thread with the keywords in the title to help others find the info/help/cab/settings to fix this issue.
Any help would be appreciated..
Charles

Can I assume from the deafening silence that there is no solution and this would be why I couldn't find anything when I was searching all over the forums.

I thought AT&T and T-mobile use different bands for their 3G...haven't met anyone yet that can switch between these two and get the others' 3G service to work on the phone from the other...only Edge.

Yep, 3G are are different bands and AT&T's unique.
Most likely, hardware limit and T-Mobile Touch Pro 2 version is what you wanted.
However, for my Tilt 2, I use AT&T Prepaid Pay-as-you-go and get full 3G service and for $20 get 30 days of 100MB data at full speed. The Pay-as-you-go offers a $3.00 per day for unlimited calls during 24 hour period when you choose plan.

But the settings on the phone even show the 2100MHZ band and other stuff.. thought quad band phones were useable on all GSM networks. I guess that must mean the phones are but not the data portion of the phone.
So it would seem I have a really nice looking phone thats about as functional as a Windows 7 computer with a 56K dialup modem. Great...
Anyone on AT&T and have a T-mobile Touch Pro2 that they would like to swap with me.

when you talk about gsm (gprs/edge/2g), there are 4 bands and pretty much all devices can work on those. when it comes to umts (3g/hspa encap) thats where proprietary bands come in. word wide you will have the 900 and 2100 bands, att uses the 850 and 1900 bands, and tmobile uses 1700. what bands a phone is capable of running on depends on the baseband hardware in the phone. theres no way to change this without basically swapping the phone out for the carrier branded device.
cdma like sprint and verizon is another monster...

cdgoin said:
thought quad band phones were useable on all GSM networks.
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Click to collapse
They do, but working and working optimally are 2 different things. You should always buy a phone to work on the network you use regularly, and be happy it works at all on others when you travel.

Live and learn..
I wonder if anyone out there in the community has a TouchPro2 that they got for use on AT&T and would like to swap..?
Charles

Can't get 3G Either
I'm using an unlocked HTC Touch Pro 2 (Euro Version) on T-Mobile and can only get Edge. The funny hting is that T-mobile is stumped on the issue even though they've seen that I'm using an HTC Touch Pro 2, not the branded T-Mo version. I just started looking into hardware differences tonight and will post whatever I find. I'm glad you started the thread.

T-Mobile HSPA bands
Just confirmed my suspicions.
The branded T-Mobile Touch Pro 2 operates on HSPA/WCDMA on the following bands: 1700/2100 MHz.
The HTC Touch Pro 2 (unbranded) operates on HSPA/WCDMA: 900/2100 MHz.
So, if you want 3G, you need to stick with the T-Mobile branded phone.
Wow...I never thought I'd hear myself saying those words. *sigh* =(

I actually have a t-mobile branded HTC Touch Pro 2 I use on ATT, if you really wanna swap I'm totally down for that. My email is [email protected] shoot me a message and lets work out how to go about this.

Can I force roaming on tmobile network with an at&t sim card?

Hi everyone,
I recently obtained an AT&T sim card and installed it into my unlocked and rooted tmo g2. I was under the assumption that I would be able to at least get 3g on the AT&T network with my phone, but did not realize that the g2 does not support the frequency bands for at&t 3g. I currently only get 2g/edge, data is slow and calls are sketchy.I have all the apn's setup correctly, I know I do. The phone simply does not support the frequency for 3g.
I was wondering if I can force my phone to always roam on the tmobile network somehow so that I can obtain 3g or even by some stroke of luck 4g. I have national roaming so there is no charge.
Is This Possible???
Somebody please help me figure this out or tell me why it will not work.
XDA is a genius pool, somebody out there knows...
Thank you in advance
Sent from my HTC Vision using xda premium

You can use AT&T's network with a phone that has an unlocked sim slot, but AT&T's 3G band (same band Canada Bell 3G is on) is different from T-Mobile's, as a result you won't be able to use 3G on AT&T's network.
The same is true if you bought an international Desire-Z and tried to use a T-Mobile Sim, no 3G speeds on T-Mobile, but 3G with an international GSM/HSPA carrier.
PS: The G2/DZ does not support 4G, the only time you ever seen 4G in the indicator is when the phone is on HSPA mode (kind of in between 3G and true 4G speeds).
In a nutshell, a T-Mobile G2 will ONLY be able to get 3G and faster on T-Mobile's Network.
----- The above mainly for people coming in wondering the difference ----
In regards to force roaming with T-Mobile's network, as far as I am aware the two have a limited pairing arrangement, with a AT&T Sim, you would get minimum edge speeds with T-Mobile. (ie: why would a competitor give you more than just basic service). ie: you're not a T-Mobile Subscriber, as such you'll only get Edge (if any data at all) when roaming outside of AT&T's coverage.

[Q] HELP-N7105(LTE) not getting 3G at all with T-Mobile!!!

Hey guys! I brought my international GT-N7105 Note II LTE model from Asia and bought that unlimited cheap 30 dollar plan. I checked the towers and my area does have those refarmed 1900MHz towers from their twitter. Anyhow, first i just thought it was my house and I have drove from pasadena-los angeles - Irvine - Orange County and have yet to see ANY 3G/H/H+ signals! Always stuck on the E (2G). First I thought it was the SIM problem so I put that SIM to an iPHONE4 and guess what?! There is the T-Mobile 3G right on that upper left hand corner and speeds are decent. Anywhere from 1.5mbps-6mbps. I'm sure it can go higher but looking at that dinky screen is already enough for my eyes! Is there some specific settings I should be doing? Somehow it's NOT locking to the 3G towers from my N7105. I am planning to get Straight Talk's 45 dollar deal at Walmart and choose the ATT since it's got better coverage from what I hear. Thanks for the help in advance and Happy Holidays everybody!!!

I don't think the 7105 has 1900 band, I have 7100 and I get 3G coverage.

5800xm_user said:
I don't think the 7105 has 1900 band, I have 7100 and I get 3G coverage.
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Click to collapse
Thanks for the reply but according to this: http://www.smartone.com/jsp/phone/english/detail_v12.jsp?id=2553
It should have 1900MHz just like the N7100 except there's LTE which won't work. There's absolutely no excuse for it NOT to have 3G! This stinks and is frustrating!

I see that it has 1900 band but under GSM, when looking at 3G bands it has HSDPA 850 / 900 / 2100 - N7105 vs N7100 having HSDPA 850 / 900 / 1900 / 2100
Dont know if it makes any difference but thats why I steered away from the LTE version.
Try this go into service mode: *#197328640# Debug screen Phone Control Network Control & Band Selection. Check if you can enable or see if you have the 1900 band under WCDMA. Might have to go under Combi Bands and select the desired bands.

Just flowing up if it worked out for u or not?
Sent from my GT-N7100 using xda app-developers app

Bumping this since the op didn't respond. I am having the same trouble and I attempted the fix you provided and found that my N7105 lacks the "combi bands"
I mistakenly purchased this phone for pre-paid here in America (should have gotten the n7100) and it seems that Straight Talk doesn't have AT&T cards anymore and I'm stuck on T-Mobile's EDGE service

I have the verizon model and use it with tmobile
So the last two weeks have been the most frustratying and nerve racking weeks ever as I have tried to get tmobile service to work well with the verizon model i have. And although I am definately still irritated, i have to say that I do get 3G and HSDPA on mine, just not anywhere near my house. This has driven me crazy and until today I assumed it was my phone and the lack of certain bands howev er after purchasing a Tmobile 4G hotspot and activating it on a new 300mb plan just to see how well it works, I have found that it was never my phone that sucked at my hopuse, its Tmobiles service that sucks!. BUT... to get the best consistant coverage with the Tmobile sim in my Verizon model I did have to experiment with the APNs quite a bit, and I also upgraded the modem to the newest one released . For anyone tryinbg to do thius with the verizon model, make sure your APN for T-Mobile US or T-Mobile Data (I personally have started using it as T-Mobile Data) has "None" typed in for the username and for APN if your using LTE device type in "fast.tmobile.com" instead of the epc.tmobile...... or whatever it is. Does anyone know if flashing a modem or radio or even just the rom from the tmobile section would help at all? Or would it just **** up the phone..

Despite not getting 3g (since I lack the appropriate physical antenna apparently) I get way better cover with T-Mobile (through Straight Talk) I have to say compared to Verizon. Maybe my Note 2 is much better than my old Thunderbolt or maybe T-Mobile is just a bit better. Nevertheless every building at my university is made of reinforced concrete so you'd be hard pressed to get any reception in the classrooms. I find in places I had no service I have service, and places I had some service I have great service now.
Back on topic though:
I can get the 1900mhz through GSM but that isn't the same and my phone lacks whatever that Combi Bands thing is. So I don't know if it is a lost cause or not. I just figured I'd bring this back up since the OP never responded and I am in the same boat as they are (were?). Maybe a solution can be found or just "it ain't gonna work."

Just following up I have returned my N7105 in favor of a N7100 and get great H+ and 3G through T-Mobile/Straight Talk.

moff3tt said:
Bumping this since the op didn't respond. I am having the same trouble and I attempted the fix you provided and found that my N7105 lacks the "combi bands"
I mistakenly purchased this phone for pre-paid here in America (should have gotten the n7100) and it seems that Straight Talk doesn't have AT&T cards anymore and I'm stuck on T-Mobile's EDGE service
Click to expand...
Click to collapse
Fwiw, net10 is basically the same as straight talk. When you buy the $15 simcard pack from bestbuy for net10, it comes with 3 different sim cards in it. One of them is a micro sim that fits in the note2 and runs on at&t's network.

gianptune said:
Fwiw, net10 is basically the same as straight talk. When you buy the $15 simcard pack from bestbuy for net10, it comes with 3 different sim cards in it. One of them is a micro sim that fits in the note2 and runs on at&t's network.
Click to expand...
Click to collapse
What max speed will be get in using Net10 on ATT sim? anyone checked?

karthikshanth said:
What max speed will be get in using Net10 on ATT sim? anyone checked?
Click to expand...
Click to collapse
i got 7mbps on net10 with n7105.

hi brothers i have SG note2 GT-I7105T LTE and it work only on 2G Band when i switch to 3G(WCDMA) mode or LTE it show "Emergency Call" but when switch to 2G(GSM) it work fine so what can i do ? and please developers explain me this problem and how to solve i try Z3X Box but it not support this variant
please help me and thanx in advance