New theory for signal drop/loss of data and dropped calls - Vibrant General

So after reading mostly every post I could find on the net regarding the Vibrant and its signal bar issues, it's pretty apparent that most everyone experiences the signal indicator dropping when the phone is held a certain way, however this only seems to affect some people's data throughput and voice service. I have read a couple of people that do not have these dropped bars, but those posts are few and far between, so I think it is safe to assume that there is a definite bug with at least the way the phone displays signal.
I have a new theory. Now, I'm no expert with cellular technology, so this may, and probably is, totally wrong. But as I was unboxing the phone, I noticed that this was the first time I got a new SIM card with any T-Mobile phone since my first, the original T-Mobile PocketPC Phone Edition, in what was that, 2002? 2003? Every other upgraded handset I've ever owned didn't come with one and it was assumed you just pop it out of your previous phone and you were good to go. Have SIM cards changed at all the way they handle these newer networks, especially HSDPA and HSPA+, or is it still all of the same? My new SIM doesn't work because I believe it isn't registered to my account on the network, so I am using the old one. It is a dumb theory I know, but its worth thinking about. Someone who is better educated will probably school my noobness, but I just found it interesting that this is the first phone on T-Mobile that can take advantage of these newer networks for both voice and data, and also the first one to include a brand-spanking new SIM card, in my experience anyway.
If this theory is totally stupid, does anyone else have any other theories?

Also received a new SIM card, unasked for. No idea if and how this could affect signal, though.

New sim cards should have basically no input on your reception. It just tells your phone which signal ranges to use. Thats it. Also contact storage.
Meanwhile you have to seriously hamfist your phone to cause anything, none of which would result in a dropped call nor a stopped data transfer.
Please stop the false hype. Vibrant won't drop calls like the iphone would.
Sent from my SGH-T959 using XDA App

The old sim cards can only register on the network some 90k times or somesuch before they go bad. The swaps between 2g + 3g networks are causing lots to go bad faster. The new sim cards don't go bad at that point. That is the only difference. You will know if it's gone bad if you're getting "sos emergency calls" or "unable to register," but it shouldn't have any effect on loss of data/signal temporarily. It will simply no longer connect at all, period.

You sure about that magic 90k number? Got a link to back it up?
I would have a year tops if that were even true.
Sent from my SGH-T959 using XDA App

No links, sorry. I'm in cust care for t-mobile, and it was in one of our updates explaining why exactly we were getting these mysterious new sim card codes in the system when there was no other noticable changes to the sims. No increase in storage for contacts, or anything else, we were all kinda "huh"
Edit:After searching around for a relevant link I stumbled upon the one below stating that it might cause similar problems, although I've yet to see that being related in any of the troubleshooting I've done. At least the specifically UICC problem.
forums.t-mobile.com/t5/myTouch-3G-Slide/cannot-make-calls-losing-signal-apps-force-closing-Problems/m-p/416847

Sim cards can cause some problems for people. I can safely say that even with the weakest of signals MY Vibrant will xfer data. I have the screen shots to prove it. I've yet to drop a call. The only thing I have a problem with is the GPS and the occasional pausing. I wish we could get some information from T-Mobile and Samsung about this matter and when they plan on fixing it. I see they're working on it by "leaking" betas to i9000 handsets. They need to fix the bars too because it's more annoying than anything. Otherwise I love the phone. GPS/zero bars will do for now but I want it to match the rest of the phone. The phone has no problem seeing up to 14 sats (only on stock settings) but will not connect to them.
My sim card is the one that came with the phone. Some networks have a special 3G authentication based on your sim but I don't believe T-Mobile is one of the carriers that use this.

I am using my old sim card and I still get attenuation when I cover the bottom of the phone. I have never lost a call due to it so I have always figured that it is just faulty reporting of the signal. In my house, where I get pretty bad service, I can make it show no bars but I can still receive a call (I got one while I was playing with it by odd coincidence)

Related

Not receiving phone calls?

Hello all,
I have had my X1 for about a month, and it seems I've come across a problem that defeats the purpose of a phone. I can't seem to receive calls for some reason...recently my friends and family have been telling me they have tried to call me but it just ends up going to my voice mail. I just tell them I was probably on the phone with someone at that time, or my phone was off. Only today did my friend call me to find me in a parking lot that I finally realize its my phone. So I attempted to call myself with my homephone, and tada! it went straight to voicemail. I don't even get any sign of a missed call.. Did anybody else getting this problem? I did a soft reset and it seem to fix the problem. It has probably happened within the past 2 weeks..I have the generic UK rom so I'm still waiting for the official R2A one. It would be great if someone could explain how to prevent this problem from happening.
not that i have a problem with my x1a, mostly because i rarely get calls and rarely use it but i have another phone that would have a problem that you describe.
i think it was due to the phone switching between 3g and edge signal. i work in the ship yard and the steel walls around the ship interfere with my signal and my phone would switch back and forth between getting the best reception (3g and edge).
well anyways, i think the switching back and forth would somehow screw my phone up and i wouldnt get any calls after getting off work.
my brother who also works at our shipyard and carpools with me would try to call me up to ask me if i was getting off in time but i wouldnt know that he had been trying to call me untill we meet up. he tells me that he has been trying to call me and so as were walking back to the car, i asked him to call me to see if my phone is working.
sure enough, my phone doesnt work untill i turned it off and then turned it back on. so if your in an area with poor 3g reception, maybe that could be causing your problem.
my old phone was an old lg cu500. thats my beater phone and since i dont use it for browsing the internet anymore, i set it and leave to use edge. it gets a stronger signal than 3g but if i do need to use 3g, i just go to my phone settings and set it back to use both signals. for some reason, i almost love that beater phone more than my xperia. mainly because its small, compact and i dont have to worry about scratching or damaging it anymore.
hmm, that is rather interesting...however my service provider's 3g frequency band is not compatible with the x1. I also don't have an internet service type of plan with my phone.
However just going to my settings, I noticed that my phone was set up to attempt to connect to the internet via HSDPA. I'm going to disable it and see what happens.
if you dont have 3g or hsdpa connection, then i would set your phone to use only gsm.
I also miss most of my calls but my problems is other some times it rings and some times it doesnt. Anybody know how to fix this?.
I have seen these problems with another PDA, in that case it seemed to be related with the PDA radio at the beggining, but even if that is one of the probable causes, there are another two to be considered.
The first one is the sim module, I own the same sim since 6 years ago, and this sim was programed specifically for the symbian phones of those years, it is in fact unable to send/receive any MMS with a PDA.
The other PDA I'm talking about is an Universal, the same phone worked ok with my sim and failed to receive many calls (even if the covering of this phone company was "better") -in the same place- with the universal, We first suspected a broken sim, but using this sim in a old gsm phone, it worked just fine.
Also, the cell companies, tend to "abuse" of their position and then to "seed" the phones with applications that do use the phone automatically, these programs are made mainly for symbian phones.
Remember also that the cell networks are exactly that, computer networks, and sometimes their databases are not perfectly compatible with all the possible variations of slightly different phones, in this case, PDAs are the least common type of phone.
So, try your phones with other (another cell company) sim, try using the sim with old phones, etc.
hope this helps.

Rogers 3G network

Hey guys, I just wanted to see if anyone else is having a longer waiting period with the Rogers 3G network lately or if it is just me. I've been noticing that my phone has slowed down quite a bit when browsing the internet or using an application that requires data on the 3G network. My wi-fi is fine, just the 3G. It takes between 45 secs to 1 minute to retreive the information. I had called Rogers and asked them to reset or refresh or whatever they do down there, but didn't seem to help.
Now if it is just my phone, maybe it is some application that is using up the processor or data, but I don't have that many applications running in the background other than weatherbug that constantly uses data.
Any suggestions would be helpful.
Thanks
What happens if you run a speedtest? the app by Xtremelabs is good.
no issue here. i use mine on a daily basis between pickering and mississauga, and as long as i have at least 2 bars of signal strength my magic is very fast over 3g
Thanks guys for the quick response. I think I found the problem. I had called Rogers support again and they said that it is due to my sim card being a 2G one. I need to replace it with a 3G. Hopefully that will fix the problem.
Thanks
I too have been having internet/email issues since last Thursday using my Treo 750. The symbol toggles between 3G and H and usually does nothing but comes back with an error message saying something like 'cannot find this page...'. I travel between Oakville and Concord every day with the same issues. The phone worked perfectly in Brantford last night...so I don't think it's a hardware issue. The tech support guy grabbed a treo and tried and was able to connect on EDGE....not 3G.
I tried my sim card in my sons Motorola Risr and it works perfectly....on EDGE. They tech support guy said they were having issues with 3G last Thurs/Friday, so I'm wondering if whatever they did last week is affecting some older phone models (I've had mine for 1 1/2 years now). Not sure if I can (or if I want to) configure my treo to connect via EDGE instead of 3G...
Anyone having the same problem?
Very odd indeed. I got my new sim card but still doesn't fix my problem. At least I'm not the only one experiencing the same problem. As far as I know, the 3G and H symbol are he same thing according to rogers tech guy, correct me if I am wrong. I'm going to call again today to see if I come up with anything.
Just got off the phone with Tech Support again. They are sending me a new Sim Card, but from the sounds of it, that's probably not going to fix the problem. He WAS going to do a free hardware swap until he discovered the phone is out of warranty. Then it was basically "oh gee, three year contract, one year warranty...tough luck".
Yep, the G and H are the same thing. Since mine is switching back and forth, he said the phone is hunting for a signal.
When I asked why the phone worked perfectly in another city he couldn't give me a good answer. I have to go back to Brantford tonight, so I'll get a chance to repeat the experiment.
Listen folks. It has nothing to do with your SIM card, nor your phone. The reps at rogers, I for one, ASSUME it could be the sim card, but really, most of the reps cannot differentiate an incompatible SIM with a compatible one, so they send you out a new one anyways, just to get you off the phone because they really don't know what the cause is and they have no hands on the status of the networks and network problems other than what is posted in library by the actual IT department, which do not directly communicate with the centers.
To sum it up. Rogers 3G network is garbage! and that DNS issue is not isolated to the metro area, it's here too in Newfoundland. DNS resolution is extremely slow, even with OpenDNS, which means it's their switches that are garbage and most likely being bogged down. Rogers thinks they had solved the problem by throttling the 3G bandwidth to ~3Mbit and the upstream to less than 150K, (My assumption), however, that isn't working.
From my guess is that the request is sent to Rogers networks, which cache that request then caches the pages and sends it to your device, making it appear you have a fast connection.
Anyways, sometimes I find the EDGE network a lot faster..especially in the DNS resolution area.
"It has nothing to do with your SIM card, nor your phone"
My feeling exactly. It just seems a little too coincidental that everything was just fine until they had a network "issue" late last week.
So, being a mechanical guy with very little knowledge of how a these things actually work, is there a way for me force the treo750 to use the EDGE network?
Never mind, I got a hold of a guy at Rogers who seemed to know his stuff. He told me to get the latest OS from Palm and then how to go in and set it up for EDGE. We'll see how that works.
lotacus said:
Listen folks. It has nothing to do with your SIM card, nor your phone. The reps at rogers, I for one, ASSUME it could be the sim card, but really, most of the reps cannot differentiate an incompatible SIM with a compatible one, so they send you out a new one anyways, just to get you off the phone because they really don't know what the cause is and they have no hands on the status of the networks and network problems other than what is posted in library by the actual IT department, which do not directly communicate with the centers.
To sum it up. Rogers 3G network is garbage! and that DNS issue is not isolated to the metro area, it's here too in Newfoundland. DNS resolution is extremely slow, even with OpenDNS, which means it's their switches that are garbage and most likely being bogged down. Rogers thinks they had solved the problem by throttling the 3G bandwidth to ~3Mbit and the upstream to less than 150K, (My assumption), however, that isn't working.
From my guess is that the request is sent to Rogers networks, which cache that request then caches the pages and sends it to your device, making it appear you have a fast connection.
Anyways, sometimes I find the EDGE network a lot faster..especially in the DNS resolution area.
Click to expand...
Click to collapse
I love ripping on Rogers for being crap, they are, but the network is downtown Toronto is far from crap. And it is not throttled. I have had repeated speedtests reach 3900kb/s with the average around 3100kb/s. Thats not too bad considering the crap they put up with in the states on AT&T.
bcrook said:
I love ripping on Rogers for being crap, they are, but the network is downtown Toronto is far from crap. And it is not throttled. I have had repeated speedtests reach 3900kb/s with the average around 3100kb/s. Thats not too bad considering the crap they put up with in the states on AT&T.
Click to expand...
Click to collapse
True, compared to the 3G in the U.S I would agree that Rogers has an edge, 3G here in Newfoundland is still in it's infancy, well still is everywhere. We just got 3G last winter I believe.
what newfoundland has 3G?
now hell really has frozen over (ha)
Im from dildo bay

Roaming At All Times

I recently unlocked my G1 to work with the ICE Network here in Costa Rica.
I was actually stuck for like 3 hours thinking about flashing and trying differen methods for the activation because for some reason it wouldn't catch the 2G Data Services (After I Followed alot of APN Settings etc)
When I was about to give up , I saw what seemed like a new icon (which ended up being that it was receiving data)
But I also noticed the R in the signal strenght icon, which I managed to figure out was Roaming.
This has not gone off since I got the phone, I got Donut 1.6 , I got the phone yesterday, It works perfectly, It receives calls, Dials, Msgs fine, everything like my old S.E phone, the internet is even a tad faster, but I'm kinda worried about the Roaming sign being there.
I'm not really worried for any International SMS like it was reported, because the crappy service here doesn't even have that, so It won't happen, and I don't even think Roaming exists here.
Any help to that?
red.Wood said:
I recently unlocked my G1 to work with the ICE Network here in Costa Rica.
I was actually stuck for like 3 hours thinking about flashing and trying differen methods for the activation because for some reason it wouldn't catch the 2G Data Services (After I Followed alot of APN Settings etc)
When I was about to give up , I saw what seemed like a new icon (which ended up being that it was receiving data)
But I also noticed the R in the signal strenght icon, which I managed to figure out was Roaming.
This has not gone off since I got the phone, I got Donut 1.6 , I got the phone yesterday, It works perfectly, It receives calls, Dials, Msgs fine, everything like my old S.E phone, the internet is even a tad faster, but I'm kinda worried about the Roaming sign being there.
I'm not really worried for any International SMS like it was reported, because the crappy service here doesn't even have that, so It won't happen, and I don't even think Roaming exists here.
Any help to that?
Click to expand...
Click to collapse
You might want to post your APN settings so others can see if you need to change something.
name:ICE Celular
apn: icecelular
proxy:172.27.10.4
port:8080
username:blank
pass:blank
server:172.27.10.4
mcc:712
mnc:03
Out of noobing around, I tried to play with the APN settings, but I went back to the old ones, now my Internet doesn't work..
http://modmyi.com/wiki/index.php/Carrier_APN_Settings#ICE_.28Costa_Rica.29
Thats the only thing I saw. Saw a couple other places that had the same info. If that don't work then maybe someone else can help you thru.
This isn't an APN problem, it is a SIM problem.
Your provider has one set of numbers on your card, and another set of numbers that actually identify the network, and they don't match. Technically, from the phone's point of view, you *are* roaming, even if it is the same provider. From the provider's point of view, you *aren't* roaming.
Up until cupcake, we had that same problem here in Canada when using the "Fido" network (which is owned and operated by "Rogers"). The network identified itself as "Rogers", the SIM cards identify themselves as "Fido", the phone think's its roaming.
So; you don't need to worry about roaming charges when you are actually connected to the correct network.
BUT; You don't have an easy to read display to tell you when you are *really* roaming, nor can you make configurations that are based on whether you are or are not roaming.
Edit: You might be inclined to report it as a bug against AOSP. Even though it technically isn't a bug, the workaround for it needs to be input and that needs to originate as a bug report. http://source.android.com/report-bugs
lbcoder said:
This isn't an APN problem, it is a SIM problem.
Your provider has one set of numbers on your card, and another set of numbers that actually identify the network, and they don't match. Technically, from the phone's point of view, you *are* roaming, even if it is the same provider. From the provider's point of view, you *aren't* roaming.
Up until cupcake, we had that same problem here in Canada when using the "Fido" network (which is owned and operated by "Rogers"). The network identified itself as "Rogers", the SIM cards identify themselves as "Fido", the phone think's its roaming.
So; you don't need to worry about roaming charges when you are actually connected to the correct network.
BUT; You don't have an easy to read display to tell you when you are *really* roaming, nor can you make configurations that are based on whether you are or are not roaming.
Edit: You might be inclined to report it as a bug against AOSP. Even though it technically isn't a bug, the workaround for it needs to be input and that needs to originate as a bug report. http://source.android.com/report-bugs
Click to expand...
Click to collapse
Thank You very much.
I actually wasn't really worrying a whole lot, because Roaming doesn't exist here in Costa Rica. ( We are expected to barely get 3G this year, and there is a wait list for that for about 200,000 people ).. If your signal goes out, thats it, you got no signal .
thanks for the quick reply, another thing I wanted to ask. I've had the phone since like Sunday, and When I got it it was Version 1.01, So I got 1.5 Cup Cake, and eventually 1.6 Donut without even trying the phone at any point, I'm getting alot of force close msgs, for something regarding android action or something like that, I don't recall the exact msg, but I keep getting it , when going to the home from a application (any) or doing something rly fast, it blacks out, resets the desktop and shows up again, I read somewhere you had to do a factory reset (which bugs me because for some reason mY internet wasn't working until like 5 hours after I unlocked the phone).. Thanks
red.Wood said:
Thank You very much.
I actually wasn't really worrying a whole lot, because Roaming doesn't exist here in Costa Rica. ( We are expected to barely get 3G this year, and there is a wait list for that for about 200,000 people ).. If your signal goes out, thats it, you got no signal .
thanks for the quick reply, another thing I wanted to ask. I've had the phone since like Sunday, and When I got it it was Version 1.01, So I got 1.5 Cup Cake, and eventually 1.6 Donut without even trying the phone at any point, I'm getting alot of force close msgs, for something regarding android action or something like that, I don't recall the exact msg, but I keep getting it , when going to the home from a application (any) or doing something rly fast, it blacks out, resets the desktop and shows up again, I read somewhere you had to do a factory reset (which bugs me because for some reason mY internet wasn't working until like 5 hours after I unlocked the phone).. Thanks
Click to expand...
Click to collapse
edit: android.process.acore
Yeah, a factory reset might help. Especially when you've done that many updates over a short period of time.
Write down your APN settings on a piece of paper and do the factory reset. It will STILL have 1.6, it will just clear the user data, which after just one day, won't be much anyways. Better to get it cleaned up now rather than wait until you have a big pile of configurations you don't want to lose.
Thanks, Did that, now my G1 Is much faster and won't crash.. Awesome

my location doesnt update, weather, google maps, bing, etc

searched the forums with little info about my situation, other than that it seems to be happening to a handful of others.
havnt changed any settings or added apps or anything to my phone for several weeks if not months. i am using the cell evo v1 rom. 2.11.50.20 radio. i dont have a proxy server running.
for the last 2-3 days my location has only updated itself once. google maps cant find me, as well as bing. manual update does nothing. soft reset does nothing. wifi connect does nothing. i can get on the internet, sms, mms, etc etc.
i read on tmonews.com that tmobile was turning on HSPA+ in my region in the last couple days, along with 18 or so cities around the US, can this have something to do with my problem?
not sure what else to do...cant find any info.
thanks
I'm having this problem now as well. Been working on it for a couple days. T-Mo has had HSPDA+ here in St. Louis since before I got my HD2, so I don't think it's due to them adding it to your region.
Strange things I've noticed so far:
It works if Wifi is on, but not connected to a network.
It works if you are connected through EDGE, but not 3G or H.
The AGPS server IP address in the registry is a private network address: 10.something. If someone with a stock TMOUS rom can look in /HKLM/HTC/SUPD AGPS/ for the Server IP key and post the contents, I'd like to know if it's the same.
These issues are the same as everyone with different devices has been having for a while now, but the older phones with the issue seem to work in some areas without the wifi and edge workarounds, and not others. Mine so far works nowhere without the workarounds.
Try going into the manila slider and on the weather tab press menu > Enable my location
^ that isn't even an option for me on the manila slider anymore for some reason. I disabled the gsm and ran on edge and it was able to locate. as soon as turned gsm back on it wouldn't do it again.
bump, anyone?
Smartass answer in 3...2...1...
Maybe you should move to Denver. Colorado is beautiful this time of year.
Kidding aside, how about trying a hard reset?
from what i've seen on threads somewhat related to this, hard reset is a 50/50 shot. if i'm going do a hard reset where i would have to redo all of my settings and such, i'm just going to wait until the new version of the cell evo rom comes out. which is supposed to be soon.
i really dont understand what would cause this to suddenly happen. especially since it still works on edge. i tried wifi once and it didnt work, but i think i had my network connection still on. but regardless, this is pretty rediculous.
If you've traveled anywhere, your radio may be 'stuck' on a distant tower. This has happened on a couple of our phones and the tmo folks had to do a push/release/unstick type of signal to the phone. May be worth a try.
^ok, i called tmo tech support. mentioned about the possibility of sending me a reset signal, she said that was a possible scenario, but she was pretty confident that it was because my sim card is an older model sim card. claims that the sim card in my phone wasnt designed for 3g services, and any sort of change in the network (like them adding HSPA+ like i mentioned above) could interfere with the connections. she said the fact that i could do this on edge and not 3g is a dead giveaway that the sim card is the problem.
she said they are in the process of trying to get people to go to the corporate stores and switch to the latest sims. apparently this is happening to a lot of people, but the sim should be the fix.
i guess i'll shoot up there later on after work, or tomorrow, and i will give you guys a follow up on this.
mvaughan06 said:
^ok, i called tmo tech support. mentioned about the possibility of sending me a reset signal, she said that was a possible scenario, but she was pretty confident that it was because my sim card is an older model sim card. claims that the sim card in my phone wasnt designed for 3g services, and any sort of change in the network (like them adding HSPA+ like i mentioned above) could interfere with the connections. she said the fact that i could do this on edge and not 3g is a dead giveaway that the sim card is the problem.
she said they are in the process of trying to get people to go to the corporate stores and switch to the latest sims. apparently this is happening to a lot of people, but the sim should be the fix.
i guess i'll shoot up there later on after work, or tomorrow, and i will give you guys a follow up on this.
Click to expand...
Click to collapse
Actually that does make perfect sense, and I suspect you'll find it clears up your problem. In fact, for anybody else that finds this thread, I suggest you try that step before other alternatives like hard-reset or ROM flashing.
yep, new sim card did it guys. i would recommend anybody having any connection issues to see if your sim cards are up to date.
edit: it was working before. now its only updating on edge again. not sure what to think or do. going to wait and see what happens when the new rom I use comes out.
any other ideas on this guys? new sim card only worked for a few hours. back to only updating 'my location' on EDGE and WIFI. pretty damn annoying. thinking about calling tmo support again to see if they'd send me a 'reset signal', but with having the new sim card you'd think that it wouldnt be a factor anymore, because i'd imagine it's already been reset.
the only other thing i could think of, and thats what tmo would probably tell me to do, is a hard reset. i'm sure they wouldnt be too happy with having a flashed rom on there either (not that i would tell them anyways).
if nobody has any other ideas but a hard reset, i'm going to wait for a couple days until the new release of the cell evo rom.
thanks
Yea. That weird problem hit my second HD2. I bought one 2 weeks ago and after your post paid more attention and of course noticed my location being Denver....
I deleted all preset locations and added custom one. It updated only once, right after location was activated....
However, wife's phone HD2 which was purchased on 3-24-2010 or original release date does not have that issue, ROM was updated to 2.13 a month ago or so...
Here you go...
Two of the same phones (supposedly), with the same stock ROM, with the SIM cards acquired about 5 years ago. One shows weather update without problem, second (newer one) has that dreaded nag....
I had a similar issue where the weather would only update once then freeze and never update again. All other 15 location updated but not my location. This was normal for stock and 2 roms, then I used energy rom and it now works. huh? Go figure.
Strange...I'm in St. Louis, as well...MO, that is...and it is working fine for me.
Try downloading the HTC connection wizard. This has fixed connection issues I've had before. I know Tmo has 3 networks to choose from MMS, Data, and Internet. I beleive you want data and may be your phone is selecting Internet.
maxpower097 said:
Try downloading the HTC connection wizard. This has fixed connection issues I've had before. I know Tmo has 3 networks to choose from MMS, Data, and Internet. I beleive you want data and may be your phone is selecting Internet.
Click to expand...
Click to collapse
ya that didnt work. either. still does it on edge though. the cell evo rom update will hopefully be here soon, if that doesnt fix it, the i'm not sure what to do.
I also have the problem of weather for my current location not updating (and the location not updating either). I have had the phone for almost a month and it updated regularly, although I noticed an occasional lapse for an hour or two. Following the suggestion by misticninja, I switched the band to Edge and I was able to update the location and weather. When I switched back to auto (3G), the update failed. It occurred to me that when I am in my basement office at home, I get Edge, not 3G. That may be why I got updates there. But I am sure it has updated in the past at my work location where I have very good 3G. Is this an HTC problem or a T-Mobile problem?
mvaughan06 said:
^ok, i called tmo tech support. mentioned about the possibility of sending me a reset signal, she said that was a possible scenario, but she was pretty confident that it was because my sim card is an older model sim card. claims that the sim card in my phone wasnt designed for 3g services, and any sort of change in the network (like them adding HSPA+ like i mentioned above) could interfere with the connections. she said the fact that i could do this on edge and not 3g is a dead giveaway that the sim card is the problem.
she said they are in the process of trying to get people to go to the corporate stores and switch to the latest sims. apparently this is happening to a lot of people, but the sim should be the fix.
i guess i'll shoot up there later on after work, or tomorrow, and i will give you guys a follow up on this.
Click to expand...
Click to collapse
I'm having this problem ever since Tmo announced HSPA+ (4G speeds), but my sim is only 2mo. old! Is that an old sim?
You need to have your location enabled. Go to settings tab the location and then click on enable my location.

Best Way to Test Signal

Can anyone suggest the best way to test cell signal on the S7 Edge? My wife and I both have the same phone, but hers consistently seems to report more bars in the same location. I've had calls drop quite often on the first dial and then they stay connected the second time I call. I'm looking to test both phones and see if it's all in my head or if there really is an issue with my device. Any help would be appreciated on an app to use or other way to test the two phones. Thanks.
did you try phone info fromthe play store.
under monitor it will tell your signal strength. I believe through its service menu you also preform a signal test.
Yeah, but those numbers don't mean anything to me. Other than saying moderate for level, it doesn't say much.
Edit: My wife is not home right now, so maybe I'll install this on both phones and see if there is a difference in the same location;. Just wondering what options are out there for testing.
when you look i phone info under signal strength the number tells how good your calling capability is,
It is measured in dBm.
average should be should be around -101 dBm for full bars depending on your provider.
compare it with your wife's signal strength.
Keep in mind that software plays a part, please check that base band version and csc is the same.
Different base bands and csc means that signal strength can vary.
These should be identical as these two items communicate with your phone provider re reception and transmission.
Phones are both stock. Same provider and same software version. I'm pretty sure I've got reception issues because of the dropped calls. Like I said, she's not home right now to test, but in looking at bars previously, she always seems to have more bars in the same location as me. My phone in our condo here is always around -111 to -120 (LTE). That is right on the cusp of bad from what I can tell. Not sure where to go from here. Really don't want to do a factory reset, but I've read it can help clear up problems like this. Not sure how. Might be a lemon, as I've only had the device since February.
i suggest you call your provider and ask them to reset your phone on their system.
It might cause a difference because of flushing out of any information that may have been related to issues on your account.
Cosmic Blue said:
i suggest you call your provider and ask them to reset your phone on their system.
It might cause a difference because of flushing out of any information that may have been related to issues on your account.
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Hmmmm...not sure what this is or what it would do. Never heard of such a thing.
Just got another dropped call. Signal was about -114. I placed a call. While it was connecting, the signal went to about -130 and then to -102 and then dropped. On a second attempt, the signal went to -97 and it connected fine.
Normally when you call your provider to report a problem with your phone.
One of the things they do is to reset your account in case there is an issue in your file as well as doing other tests.
It is similar to you cleaning the cache on your phone from time to time as bits and piece of old files then to slow down your phone.
Try to swap the SIM cards and check what happens.
So this is an older thread, but the issue had been ongoing. Lots of things tried. New sim. Called Rogers (my provider here in Canada) and had them reset mobile connection settings on their end. Tried resetting on my end. Seemed to get better and then back to being an issue again.
Lately it had gotten worse. When I would drive home and park in our parking garage, I would immediately go into roaming mode and was no longer connected to the Rogers network. I was then connected to Rogers-EXT because I had enabled data roaming on my device, from a previous call to Rogers, it was their suggestion to try and keep connectivity, as it is included in my package. The phone would stay roaming as I rode the elevator and into my condo and then usually connect to WiFi and then eventually reconnect to the main Rogers network. Meanwhile this never happened on my wife's S7 Edge, going the same route from her vehicle. Same device, exact same settings, same software version, same updates, etc. Her's never entered roaming mode or got disconnected from the main Rogers network.
Lately, when mine had been entering roaming mode and after I entered my condo, it would stay connected to Rogers-EXT. No matter what I did, a reboot, turn roaming on and off, etc. I had to physically remove myself from the LTE network and then reconnect and register with the network, and then I would connect to the main Rogers network and stop roaming. This was all getting damn frustrating, especially since the same thing was not happening to my wife's phone.
One setting I had not read much about and had not tried was VoLTE. I went into settings and turned this off. I immediately started getting a bit better readings on signal strength as well as no roaming issues any longer at all. I could park, ride the elevator and get into my condo and stay connected to the main Rogers network without issue, exactly like my wife's phone. Funny thing is, VoLTE is ON, on my wife's phone.
I really have no idea why her's works and mine doesn't, other than a hardware issue on my device. I thought about sending my phone in, as I'm still under warranty until the end of December, but right now, everything is working as expected and I haven't heard call quality suffer at all, with the calls I've made so far. I really didn't want to have to wipe my device and send it in and deal with a loaner if I didn't have to. I only plan on keep the device until about August of next year anyway.
If anyone out there knows of why this was happening to my device and not hers or if you have any other suggestions as to how to fix this and re-enable VoLTE (although I don't think it's really that important), please let me know. Again, it sure seems like a hardware (antenna) issue to me.
Aaaaaaaaand nevermind. Worked fine for about 3 days and today it was roaming again after coming up from the parking garage. Ugh. Wish I knew for sure this was a hardware issue. Such a pain to send your phone in, use a loaner, set your phone all up again when you get it back.

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