Database Users

Unable to connect to network

I am on an AT&T 8525(see signature) running WM 6.1. I am in an area where my phone shows that I am on AT&T's network in the southeast US with 2 bars but I have no service. I cannot make a phone call although I occasionally receive a call, I cannot answer it. I also cannot get any data connection to work except the occasional SMS message. My wife is on T-Mobile with an 8125 and she has about the same coverage although she can make and receive calls about 90% of the time so there is no doubt that we are on the fringe of coverage.
I've tried changing the network band on my phone with no luck(trying to see if for some reason T-Mobile is on something different than AT&T). I tried upgrading my radio ROM as well to see if that would help(see sig) but didn't change anything. In other areas, with just the one bar of signal strength I've been able to make calls 100% of the time. It's only this one area that gives me fits.
I have FieldTest.exe on my phone but must admit that other than looking at the pretty numbers, I don't really know how to interpret the results of that app. Any suggestions?
Rick

I am having same problem, tried something like 3 roms , and it sometimes work for a while then stop working again, i was a new rom when i found it was making calls but no 3G connection, i tried another rom, made few calls then now it is unable to connect to anything , please let me know if you find a solution

Dropped Calls on X1a... No WDCMA to GSM handoff?

Hi everyone,
I'm on a fringe coverage area with AT&T. I have a pretty new sim card, but I noticed that I get a lot of dropped calls while on 3G (or H). I usually get 1-2 bars on 3G. Shouldn't the call I'm on, hand-off to Edge if the signal is not strong enough on 3G? Right now, its dropping the call altogether on 3G with no fallback to Edge. Is the Xperia's radio to blame for this?
Thanks!

i dont know who is to blame but if your on the fringe as you say, you should just manually set your device to use edge/gsm.
it will save on your battery and have less dropped calls. otherwise, you phone will keep bouncing between signals.

i also have the same problem and i am curious of the answer i dont want to lose 3g all together but i have 1 bar in my house and drop calls also.

Has anyone on AT&T tried to flash their xperia with the Raphael radio? Is the signal alot better?

not just exactly the same problem here, but similar (according to the network). at home, i have no 3g coverage and manage to get edge at best, problem is intermitantly my voice stops, even though i can here the other caller perfectly, the phone still keeps between 2-3 bars of signal, and i can even stay on the call over 30 seconds after it happens. the other caller can just hear like a dead noise. the network has me testing the 3g thing for the next couple of days though.
PS. this also happened with a K850i and a K800i

tmous htc hd2 data signal radio 2.11

i am on the stock radio 2.10 stock rom with alot of tweaks i have done my self ok the problem is it seems my tmobo conection is harribal indoors 1 or 2 bars edge and alway s changeing if i step outside the bars shoot all the way to full 3g will flashing the 2.11 radio help this at all or is this just what i have to deal with on tmobo network any tips or tweaks on geting better service indoors would help this seems to be any building or house not just one location PLEAS HELP!!!!

sev15 said:
i am on the stock radio 2.10 stock rom with alot of tweaks i have done my self ok the problem is it seems my tmobo conection is harribal indoors 1 or 2 bars edge and alway s changeing if i step outside the bars shoot all the way to full 3g will flashing the 2.11 radio help this at all or is this just what i have to deal with on tmobo network any tips or tweaks on geting better service indoors would help this seems to be any building or house not just one location PLEAS HELP!!!!
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A lot of us have the same issue. I think it could be that the signal strength in certain areas is not strong enough when inside buildings.

sev15 said:
i am on the stock radio 2.10 stock rom with alot of tweaks i have done my self ok the problem is it seems my tmobo conection is harribal indoors 1 or 2 bars edge and alway s changeing if i step outside the bars shoot all the way to full 3g will flashing the 2.11 radio help this at all or is this just what i have to deal with on tmobo network any tips or tweaks on geting better service indoors would help this seems to be any building or house not just one location PLEAS HELP!!!!
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T-Mobiles 1700mhz 3g band doesn't penetrate walls or objects as well as a lower mhz signal would like at&t's 850 band. It travels farther, though, so t-mobile doesn't need as many towers to cover an area, but that also means there is going to be more areas that have weak signals in a covered area. So, unless you're close to one of there towers, you won't get good 3g signals inside buildings.

zarathustrax said:
T-Mobiles 1700mhz 3g band doesn't penetrate walls or objects as well as a lower mhz signal would like at&t's 850 band. It travels farther, though, so t-mobile doesn't need as many towers to cover an area, but that also means there is going to be more areas that have weak signals in a covered area. So, unless you're close to one of there towers, you won't get good 3g signals inside buildings.
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The radio has to have something to do with it though because the 1700mhz band penetrates just fine for other HTC phones.
I have my HD2, MT3G and the G1...here at my desk at work, I can have all three side by side and the G1 has 2 bars 3G...the MT3G has 3 bars 3G...and my HD2 bounces all over the place between 3G and Edge... so you cannot tell me that they are receiving different signals.
...outside, or in 99% of other places I go I have no 3G problems with my HD2...unfortunately though, I spend a lot of time at work and would really love to have at least a steady 3G connection without having to put my SIM in a different phone.

Try changing the access point
if you go into the connections setting for the tmob data connection access point address. tmob default is epc.tmobile.com. try usin wap.voicestream.com or internet2.voicestream.com

well i guess we cant look foward for better service tell more towers go up i did have a sidekick lx that was not bad indoors could this be due to the danger server if so is there anyway to use that server instead
it kinda sux when friends from work sit next to me and can use att and verizon tv and streaming and i can not with my supper phone with bad indoor connection wish i could do something about it or some of the supper guys here at xda

Radios are ****, plain and simple. I have a g1 full bars 3g always on and my hd2 1-2 bars, 3g comes in and out. I called t-mo support and they tried the singal in your area bs. I said listen I have a G1 right next to the hd2 and that old clunker has full signal so stop there. Then they said, we are aware of the problem and are working on it.

same here
i have my g1 and HD2 side by side and the g1 has 3 bars 3g and the HD2 has only 1 bar edge and won't respond!

No complaints about the HD2's reception here. Having come from a Nexus One, I had them at the same time for about 2 weeks.
The Nexus One dropped calls constantly while inside at work, forget about keeping a reliable 3G signal, in fact I was lucky to keep EDGE indoors. If you moved the wrong way (literally!) it would bounce around in signal strength and would lose data connection constantly.
Looking at the HD2, I have 3G connection pretty much constantly, jumping into H on a regular basis. No dropped calls, sound quality from the ear speaker is phenomenal , and never a lost data connection.
Outdoors is even better.
Again, no complaints here about TMoUS's signal here!

anyone know if the 2.11 will help at all

I HATE that the HD2 will sometimes show full (phone) bars, not 3g or E, but yet not let you call. I had this happen to me for 2 minutes today. I had to go into settings and turn the phone option off/on and wait a minute for it to get a signal again. I'm in NYC, there's usually full 3G bars when outside.
This phone doesn't handle weak signals or situations when you enter and leave areas with no reception.

hmmmmmmm
i just found something iv been testing it for 30 min now if i lay my hd2 down flat on table or anything flat i can keep 3 bars 3g indoors i pick it up and hold in hand and boom 1 bar edge this is wierd wonder if this means anything im going to tryit at work tomorow see if it dose the same thing tryit see if your phone dose the same guys let me know i can stream video on mobi tv as long as its laying flat 3g i pick it up and the video stops and phone goes to edge

sev15 said:
i just found something iv been testing it for 30 min now if i lay my hd2 down flat on table or anything flat i can keep 3 bars 3g indoors i pick it up and hold in hand and boom 1 bar edge this is wierd wonder if this means anything im going to tryit at work tomorow see if it dose the same thing tryit see if your phone dose the same guys let me know i can stream video on mobi tv as long as its laying flat 3g i pick it up and the video stops and phone goes to edge
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Yes, that's one of the crazy things with this phone. It can sit on a table all day and the 3G icon will be full bars. As soon as you touch the damn thing, you see the bars drop to 1 then it goes to Edge full bars then it drops to G...and will not go back to 3G until you put the phone down.
This needs to update fast. Thing I'm gonna go back to my TP2 until then.

I am a little confused here. some posts seem as if it might be a device issue and others seem to be leaning towards t-mobile. i had some really bad issues with my reception until i changed Radios. i am currently using 2.10.50.19._2 and my 3g signal seems to cut out less. but its is not as strong as my Tp2 which had excellent 3g signal, but i did call t-mobile and they said there have been issues reported in my area and they are working on it but if that is the case then my tp2 would also have the same issues which it does not! so i don't know what to make of it??

piztol44pete said:
I am a little confused here. some posts seem as if it might be a device issue and others seem to be leaning towards t-mobile. i had some really bad issues with my reception until i changed Radios. i am currently using 2.10.50.19._2 and my 3g signal seems to cut out less. but its is not as strong as my Tp2 which had excellent 3g signal, but i did call t-mobile and they said there have been issues reported in my area and they are working on it but if that is the case then my tp2 would also have the same issues which it does not! so i don't know what to make of it??
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I think its the phone. I've never had issues with my G1. I went to the Cliq and it had bad reception. I could set it next to my friends G1 and Mytouch and they both had 2 - 3 bas of 3G and I would be on Edge. The HD2 is a little better but not as good as the G1 and MyTouch. The N1 has the exact same issues and they are both HTC. Hopefully a radio or software update will fix the issue. Its a know issue with Tmobile so they are aware of the issue.

You can try to go to settings, personal, phone, band, and change the select yout network type option to wcdma. Leave the slect your gsm/umts band option to auto. This tells it to only connect to 3g. I had to do it with my at&t windows mobile phone when I was at my job to keep it on 3g. Also with my t-mobile hd2, in certain places i have to do it otherwise it switches between 3g and edge. Downside is, if there is no 3G signal available your phone will have no signal. It should work since the phone is detecting 3g signal.

Its great to know that I am not the only person experiencing these issues with the HD2. I lay it down on my desk and it will read 3 bars 3G. Pick it up, and it drops to Edge. Never had these problems with my Xperia X1i. Something I have noticed is the battery life on my HD2 is much better than my Xperia X1i. Although it has a larger screen and smaller battery. I think the Engineers at HTC reduced the power to the Radio to help improve battery life. Anyone have any theories on how to increase the power to the radio antenna?

Just saw this thread when I was looking for a solution to this exact problem. I just recently moved to Houston and can not seem to get a T-Mobile signal inside my house with my HD2. It got signal just fine in Alabama, but nothing here.
I have a Dash 3G right next to the HD2 with 3 bars of 3G, hd2 has nothing. I even put my sim card in an old hacked iPhone and it even gets signal inside. I can't figure this out but its making me consider having to get rid of the phone. What good is it when the phone doesn't get signal?
I also just saw the new 2.11.50.20 radio on the forums, so after I charge my hd2 i'm gonna try that out and see if it helps.

I am from Houston too. ( Pearland Actually )
Same story here, inside my house NO 3G! However if I am driving around town I usually have 3 or 4 bars 3G. Let us know if that new radio ROM helps at all.
sullitf said:
Just saw this thread when I was looking for a solution to this exact problem. I just recently moved to Houston and can not seem to get a T-Mobile signal inside my house with my HD2. It got signal just fine in Alabama, but nothing here.
I have a Dash 3G right next to the HD2 with 3 bars of 3G, hd2 has nothing. I even put my sim card in an old hacked iPhone and it even gets signal inside. I can't figure this out but its making me consider having to get rid of the phone. What good is it when the phone doesn't get signal?
I also just saw the new 2.11.50.20 radio on the forums, so after I charge my hd2 i'm gonna try that out and see if it helps.
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WhiteSites said:
I am from Houston too. ( Pearland Actually )
Same story here, inside my house NO 3G! However if I am driving around town I usually have 3 or 4 bars 3G. Let us know if that new radio ROM helps at all.
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No help. 2.11.50.20 isn't doing anything, still getting 0 bars inside and 2 bars of when I go onto my front porch. Down the road I get full 3G, so I don't understand whats going on at all

O2 HD2 upgraded 1.43 to 1.73 now V.Poor signals

At last UK O2 network pulled their collective act together and got a much needed updated ROM out for UK O2 HD2 customers. I installed it two days ago after getting it from the HTC website.
I can now say categorically that this new ROM has resulted in me receiving a significantly worse data & phone service. For the past 6 months I got an HSDPA signal whilst at home only on occasions would this drop to slower 3G strength and never to GPRS. Voice calls were pretty reliable whatever the data signal was doing.
Now I've had several missed calls - some gone through to voice mail even though the phone's showing full GPRS voice signal and my data signal has dropped off the planet - I can only get a GPRS signals now most of the time with occasional blips of 3G and HSDPA! I feel like i've gone back in time!
Has anyone else experience any O2 HD2 official ROM upgrade data signal issues? I want to re-flash back to the old 1.43 at this rate - I haven't noticed any significant differences between the two, they didn't even bother to fix the SMS bugs!

I think there's something wrong with o2 network in last few days (a week perhaps?).
I haven't changed my rom recently, but I got weird loss of services (voice and data) while the signal was pretty good. I wouldn't even realise this, but when I've tried to make a call last week (thursday or friday) I was not connected. my friend who was standing next to me dialed my number and was diverted to voicemail. wth? switching band to gsm have helped, but I had the same issue today- good signal, no voice (both ways) and data. hspa, Bedfordshire area if it's any help....

I had poor reception from o2 over the weekend... 3g was awful
Iam sim free with o2 sim back to stock rom 1.43WWE

bronx said:
I think there's something wrong with o2 network in last few days (a week perhaps?).
I haven't changed my rom recently, but I got weird loss of services (voice and data) while the signal was pretty good. I wouldn't even realise this, but when I've tried to make a call last week (thursday or friday) I was not connected. my friend who was standing next to me dialed my number and was diverted to voicemail. wth? switching band to gsm have helped, but I had the same issue today- good signal, no voice (both ways) and data. hspa, Bedfordshire area if it's any help....
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That's interesting. I'm near Kingston, SW London - I stuck it on GSM only half an hour ago and received calls again no problem. Weird. When I put it back on Auto the phone can't hold on to an HSDPA signal for any length of time before bouncing around to 3G back to HSDPA then back to 3G then eventually on to 2G...where it stays.
Something's gone a bit wacky

My HD2 is one of the original ROM locked HD2's from O2, however I use it with T-mobile.
After installing the latest ROM from O2, no problems with signal.
It would seem its an O2 tower problem, not ROM related.

Voice AND data at the same time on the tmobile network?

I got an email while on a call without wifi. I'm in dallas. Anyone else getting data and voice now?

Has been possible since the beginning of time as long as you are on 3G

I concur. ↑
Sent from my Nexus One using XDA App

Really? I've never been able to do that until recently.
Usually when I'd start a call I'd lose the 3G icon and if I received email while in call it wouldn't show up until after I hung up.
Couldn't mess with data without wifi.
Used to do this on my cliq and G1 as well...
Odd.

Also been doing both (on TMob 3G) since February...

Any gsm phone can do that, but it is impossible for cdma

Your phone may have been set to WCDMA only up until now.

chalk that up as a win for GSM and a lose for CDMA

JCopernicus said:
Your phone may have been set to WCDMA only up until now.
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WCDMA is 3G, it has nothing to do with CDMA

In a weak 3G signal area, the phone usually does a handover and transfers the call to the GSM network when the 3G signal falls under some threshold, and GSM doesn't support simultaneous voice and data (icon disappears while on a call)
maybe you have better 3G coverage now and your nexus doesn't need to go the GSM route

I've noticed problems with using data and voice together too. What seems to happen is that it works ok at first, but the instant you lose 3G it never comes back until the call is over, no matter how good your signal. Very frustrating when trying to use your data while on a long call.

Both AT&T and T-Mobile (as can any GSM carrier worldwide) can do voice and data at the same time as long as your phone has a "3G" connection visible while on the phone call. This has always been possible.
What you may see happen is that if you wrap your hands around the bottom of the phone during a call, the signal may drop to "E" or Edge. You can't use data and voice at the same time if your phone is on Edge.
To alleviate this, use a wired or Bluetooth headset, or hold the phone with your fingers rather than your whole palm.

Paul22000 said:
What you may see happen is that if you wrap your hands around the bottom of the phone during a call, the signal may drop to "E" or Edge. You can't use data and voice at the same time if your phone is on Edge.
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Have you ever seen my problem where once the signal drops to Edge it will never go back to 3G? It doesn't seem like normal behavior to me but it seems to always happen when I need my data during the call. I've been stuck on multi-hour calls where my phone refused to go back to 3G almost from the beginning, and then the second I hang up the phone goes right back to a 3G signal with full bars again. Very frustrating!

pfmiller said:
I've noticed problems with using data and voice together too. What seems to happen is that it works ok at first, but the instant you lose 3G it never comes back until the call is over, no matter how good your signal. Very frustrating when trying to use your data while on a long call.
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the ATT 3G network is not setup to do handoffs from gsm back to 3g. it currently will ONLY handoff from 3G to gsm during a call, and if you are still on your call, it will not switch back until you hang up. in the future this can be enabled both ways. tmobile apparently is setup the same way for now. so you're experience is normal until they reconfigure their network.

Actually it depends on the phone hardware. It IS possible to use GPRS and voice as well if the hardware supports it, its not only something available on 3G/UMTS/WCDMA. There is a pretty even split between class A and class B phones these days, you should look up the specs of the phone you're using.
Nearly all 3G devices allow you to use data and voice together since it isnt timeslot based and so voice and data is logically split and not time divided. This means you dont need specially designed hardware to do it, just the processing power to do it.
Class A
Can be connected to GPRS service and GSM service (voice, SMS), using both at the same time.
Class B
Can be connected to GPRS service and GSM service (voice, SMS), but using only one or the other at a given time. During GSM service (voice call or SMS), GPRS service is suspended, and then resumed automatically after the GSM service (voice call or SMS) has concluded.
Class C
Are connected to either GPRS service or GSM service (voice, SMS). Must be switched manually between one or the other service.

@kam187, thanks for that. I've been with T-Mobile since they were Voicestream, about 10 years now. And I thought I was making voice and data connections with my Nokia phone years ago, before their 3G rollout.
Here is the last phone I used before going the G1 route.
http://www.gsmarena.com/nokia_e61-1322.php

Yep E61 is on nokia's list of Class A devices:
http://wiki.forum.nokia.com/index.p...s_supporting_GPRS_Class_A_(Dual_Transfer_Mode)