Drops calls all over the place - T-Mobile Samsung Galaxy S II SGH-T989

I'm having major issues with my GS2 when moving between cell sites. More often than it should it just drops the call, especially when going from WCDMA/4G to GSM/EDGE. It never hands off properly, and often times the phone will pick up a weak 4G signal, hold on to it for much longer than it should, drop all connectivity (with the circle and a slash showing up) before going back to GSM. Or it will do the same, starting off with a strong 4G signal, moving into an EDGE/GSM only area and never hand-off to the GSM cell site, what it will do is drop ALL network connectivity (circle with a slash!) then pick up the GSM network.
I know I'm not the only one with these issues. I love the phone otherwise, actual GSM reception is great - but it does NOT handle handoffs well, even when going from one 4G cell site to another. My Dell Venue Pro and other phone's don't have such a high tendency to drop calls. I'm actually about to get a BlackBerry 9900 because it has NO issues with these handovers, and seamlessly switches between WCDMA and GSM.

Try talking to T-Mobile.
Sent From The Best Phone of 2011

no issues on my phone
i agree about talking to Tmo to report the issues on those areas

I work for Tmobile...go to a corporate store n tell them ur prob them n tell them u wanna get a new sim ...sounds like ur sim card is totally to be blamed fore this...I had that pro s wit a few customer
New sim did the trick...let me no how it works out...but I'm about 97% positive it ur sin even if u have a new 1 switch for another!
Sent from my SGH-T989 using XDA Premium App

heygrl said:
More often than it should it just drops the call, especially when going from WCDMA/4G to GSM/EDGE.
Click to expand...
Click to collapse
Same problems.
I'm not so sure that it is depends only with operator.
I'm leaving in Europe, but have similare problems with scrambled voice during phone calls and drops calls.
Before I used Samsung Vibrants, Captivate and Infuse. All of them works in same locations without any problems and voice quality was amazing.
I tested two different unlocked Herculeses t989, with two differnt operators and all available radio' modems for AT&T/Rogers Skyrockets and T-Mobile/Telus T-989. Both t-989 have same issues with all modems and voice quality worst compare Infuse/Captivate/Vibrant.
Both t989 runs stock rooted roms
My operator data range:
GSM/GPRS/EDGE 900Mhz/1800Mhz
UMTS/WCDMA/HSPA+ 2100Mhz
Here is similar problem: http://forum.xda-developers.com/showthread.php?p=22057377#post22057377

mightymike889 said:
I work for Tmobile...go to a corporate store n tell them ur prob them n tell them u wanna get a new sim ...sounds like ur sim card is totally to be blamed fore this...I had that pro s wit a few customer
New sim did the trick...let me no how it works out...but I'm about 97% positive it ur sin even if u have a new 1 switch for another!
Sent from my SGH-T989 using XDA Premium App
Click to expand...
Click to collapse
Lol sin
Sent from the bridge of the
U.S.S. Enterprise using L.T.Com Worf

mightymike889 said:
I work for Tmobile...go to a corporate store n tell them ur prob them n tell them u wanna get a new sim ...sounds like ur sim card is totally to be blamed fore this...I had that pro s wit a few customer
New sim did the trick...let me no how it works out...but I'm about 97% positive it ur sin even if u have a new 1 switch for another!
Sent from my SGH-T989 using XDA Premium App
Click to expand...
Click to collapse
A sim card is not going to help. You sound like a CSR. If you can find a pattern with location a service request will need to be done, which usually leads to a trouble ticket. (Both done through tmo )
Usually i would have you do a sim swap with another phone and see if the issue follows your sim or your phone. Easiest way to find the problem .
Sent from my SGH-T989 using XDA App

It's not the service it's my phone. It handles WCDMA-GSM hand-off's poorly and it camps on WCDMA for too long when the signal is took weak. We need a radio update. I have the latest sim card. It also drops calls going between cells sometimes and not just WCDMA to GSM which I find to also be as a result of the radio.

only few people seems to be having this problem, like the other guy on the Wind topic
personally i've not had any of the issues mentioned, and i'm still on the original Tmo radio

If you can settle for GSM or WCDMA alone, why not force your phone on those frequencies? That way you can at least eliminate the band switching variable
Sent from my SGH-T989 using Tapatalk

Related

[Q]Does the sim card affect network speeds?

when i bought my G2 i was told i could keep using my old sim card from my G1. my G2 average network speed is like average 500-800kb/s, sometimes 1200kb/s, rarely from 2300-3000kb/s, and every blue/red/black moon it will hit slightly more than 4000kb/s. i live in LA and work in Beverly Hills, so im covered.
i know bandwidth can affect the speeds, but i'd expect to get on average at least above 1200kb/s. my question is could my sim card be having any negative effect on my speeds? should i put in the new one?
oh yeah and i have not recieved the OTA yet either.
The thing is that HSPA+(pseudo "4G") isn't available everywhere. You're probably only on HSDPA which is quite a bit slower than HSPA+.
I don't think changing your sim card would affect your speeds at all, because the sim card doesn't interpret or recieve any data from the cell towers (correct me if I'm wrong)
It just says "HI I'M MIKE'S PHONE AND MY PHONE NUMBER IS XXX-XXX-XXXX AND HERE'S ALL MY INFO"
^_^
thanks for the reply!
i checked the coverage maps and according to them my area is covered. what can i do to get those speeds? i dont think ive ever been on hspa+
IMO I don't think their coverage map is that accurate. For example my house apparently has HSPA+ according to them. However no phones (tried on AT&T and T-Mo) are able to get very good signal at all, with my G2 unable to get data at home. However if I walk to the end of my street I am able to just barely get HSPA+.
Just goes to show: Not everything on the internet is true. XD
ibemad1 said:
Just goes to show: Not everything on the internet is true. XD
Click to expand...
Click to collapse
It's not ?
I have a bad feeling about that email I sent with all my bank details to the guy from Nigeria who I was helping transfer some money
changing ur sim would help if u are getting poor signal/coverage and thats only if you are using a very old simcard such as ones from voicestream. also does your G2 banner (when u pull down for notification alert) say T-Mobile | Get More? if it does you may need to update ur sim and it will remove that and just say T-Mobile.
For what it's worth, my SIM card is about 8 years old and I get some really nice speeds with my G2. So I'd say it has very little to do with your SIM card.
The only thing that matters is the radio that the phone supports, the sd doesn't matter. Go into teting via dial pad(*#*#4636#*#*) and force the network type you want.
Just for the hell of it I called T-Mobile today and activated the new SIM that came with my G2. The one I was using was from two phones ago when I had my Sidekick. But even with that SIM card I was getting exceptional speeds. I've been using it for weeks in my G2.
I also told T-Mobile to make sure my web was provisioned with the newest plan.
I haven't used data much since then, because it was only a few hours ago and I use WIFI at home. But if I notice a big difference I'll post here.
I would say that you probably just have a very busy network in your area. Data speeds depend a lot on how many people are using the network in your area. Or maybe just the towers aren't fully upgraded yet.
apprecaite all the help!
my sim card isnt that old, its the same one that came with my g1, which i bought in 2009. i talked to a rep earlier today, he said it might affect the speeds because they made new sim cards this year? idk cause then the rep im talking to now says it has no efffect. i think im just gonna cahnge the sim just cause i want to, if it actually makes any difference ill let you guys know
ok i just changed the sim card, and the speeds did actually improve. aside from that, accoding to the speedtest results, im now actually connecting to hspa+, before all it would say is cell, now it says umts sometimes. overall seems like an improvement
Sent from my T-Mobile G2 using XDA App
steviewevie said:
It's not ?
I have a bad feeling about that email I sent with all my bank details to the guy from Nigeria who I was helping transfer some money
Click to expand...
Click to collapse
Yeah me too only it was a pretty white girl from Ghana....wondered why so many women that look like college cheerleaders are there clearing up their father's Estate......hmmmm.

[Q] Why can't we use data during a call?

So I was downloading AA V7 from my phone. Since I was at work. I started about 6 20 pm. On a 100% battery. Around 8 20 pm with a 28 % battey I was at 96% when I got a phone call and canceled my download. Why o why. Damn u sprint. Does any one know if 4g will stay connected while your in a call?
Sent from my fake Nexus S 4G using XDA Premium App
notsosmrtgeek said:
So I was downloading AA V7 from my phone. Since I was at work. I started about 6 20 pm. On a 100% battery. Around 8 20 pm with a 28 % battey I was at 96% when I got a phone call and canceled my download. Why o why. Damn u sprint. Does any one know if 4g will stay connected while your in a call?
Sent from my fake Nexus S 4G using XDA Premium App
Click to expand...
Click to collapse
Cdma will not allow data and calling its a network thing...a no no but 4g works I tested it before and it works no problem
Sent from my SPH-D700 using XDA App
Thanks. I don't get 4g at my work but in my town there is. but I will just dl it later. Damn sprint
Sent from my fake Nexus S 4G using XDA Premium App
I feel your pain
Sent from my SPH-D700 using XDA Premium App
You can use wifi while on a call
rulyskull said:
Cdma will not allow data and calling its a network thing...a no no but 4g works I tested it before and it works no problem
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
I know, why doesn't Sprint advertise that fact? I've found myself surprised when I get a call while doing interweb things and everything continues as is. By the way, I think HBO GO thinks 4g=wifi.
And that's why GSM is so much better...
SIM cards > ESN
Data and voice simultaneously? Yes please.
IIRC it's frequencies penetrate buildings better as well.
I normally have wifi on at home because I am in between. Areas at my apt so I knew about the wifi but there is always a negative fml. But at home time for some v7. I have about 30 pages to catch up on heheheh.
Sent from my fake Nexus S 4G using XDA Premium App
I was able to take a call and use data..I have Sprint. I was in a 4G area. Voice and data shouldnt be a problem at the same time. I had an Adobe connect going. Never lost connection and I was using wired tether..I am rooted. But no issues
Sent from my Swagurious Evo...
I have googled something while on a phone call without 4G or wifi. Heavy traffic stops or crawls so much you may think it doesn't work or timeouts.
Kal*El said:
I was able to take a call and use data..I have Sprint. I was in a 4G area. Voice and data shouldnt be a problem at the same time. I had an Adobe connect going. Never lost connection and I was using wired tether..I am rooted. But no issues
Sent from my Swagurious Evo...
Click to expand...
Click to collapse
Okay everyone, let me teach you a little something. AT&T and T-Mobile both allow you to use data while on a call, why is that? It is actually because, back in the days before data, AT&T used ONLY GSM radio frequencies. These were perfect for phone calls and texting, but once data connections were required, their network couldn't handle it.
However, Sprint and Verizon were fine, because they used CDMA, a network that allows them to handle voice and data on the same frequency.
GSM providers were sad, so to fix it, they added a CDMA frequency to their arsenal. This means, they use two frequencies at the same time a GSM frequency to handle calls and text, and a CDMA frequency to handle data. So while you are on a call, the CDMA frequency is still free, hence the talk and web simultaneously.
Sprint and Verizon, however use CDMA for everything, so when you make a phone call, the network is being used. So data can't also get through. But 4G is yet another frequency so that can be used at the same time as a phone call.
Does this make sense?
Also, while GSM can penetrate buildings better, it is also much less reliable. It's large wavelengths allow it to travel through walls better, but also cause the dredded dropped calls that AT&T experience so much. I'll take CDMA over GSM everyday of the week. Besides, other then the rare occasion in which we are downloading (though we should never download something that big over 3G) we don't NEED talk and data at the same time.
The Root said:
I know, why doesn't Sprint advertise that fact? I've found myself surprised when I get a call while doing interweb things and everything continues as is. By the way, I think HBO GO thinks 4g=wifi.
Click to expand...
Click to collapse
Why would sprint advertise a flaw. That's why att advertises that they can talk and surf with the iphone duh
i know it doesnt work and it takes forever. but i am a flashaholic and damn it sucks when i go to work and the rom i have been waiting for gets released
There are a bunch of errors here.
CDMA can do Voice and data at the same time. Verison did not want that, and as the largest CDMA company, every one stopped developing new and better protocols and by default standardized on the Verizon way.
But not all Dev stopped. Outside North America there are several CDMA carriers that use EVDV? and other protocols that allow simultaneous Voice data connections on their frequencies. I believe Russia does on their 450MHz system. In fact these protocols are built in to any newer phone and all new tower equipment, but has not been implemented. Some have suggested when Sprint finishes their soft radio upgrade, they may offer it on a new phone.
Censura_Umbra had much good info, but it is not NECESSARY, from a tech point of view to have two different frequencies to do voice and data. It has been suggested that ATT wanted TWO separate systems for voice and data, as that is how big telcos are. I find this accurate.
One should also note that there are SIM CDMA phones. SIM is a separate tech entirely. North American Vendors do not use SIM cards to protect there handset hardware revenue streams. It is also why they lobbied so hard to try to get ESN modification illegal.
Final point. There are plenty who complain about frequency penetration.
1) While lower frequencies do penetrate things better, and thus may have more cancer risk
2) They also take more power to create. Thus reducing phone life.
3) Frequency attenuation do to penetration is predictable. With modern protocols, data rates can be unaffected. These things are not being implemented do to the FAT revenue streamed on handsets.
I'm not sure what everyone is talking about, I use 3G a lot while on calls.
Censura_Umbra said:
Okay everyone, let me teach you a little something. AT&T and T-Mobile both allow you to use data while on a call, why is that? It is actually because, back in the days before data, AT&T used ONLY GSM radio frequencies. These were perfect for phone calls and texting, but once data connections were required, their network couldn't handle it.
However, Sprint and Verizon were fine, because they used CDMA, a network that allows them to handle voice and data on the same frequency.
GSM providers were sad, so to fix it, they added a CDMA frequency to their arsenal. This means, they use two frequencies at the same time a GSM frequency to handle calls and text, and a CDMA frequency to handle data. So while you are on a call, the CDMA frequency is still free, hence the talk and web simultaneously.
Sprint and Verizon, however use CDMA for everything, so when you make a phone call, the network is being used. So data can't also get through. But 4G is yet another frequency so that can be used at the same time as a phone call.
Does this make sense?
Also, while GSM can penetrate buildings better, it is also much less reliable. It's large wavelengths allow it to travel through walls better, but also cause the dredded dropped calls that AT&T experience so much. I'll take CDMA over GSM everyday of the week. Besides, other then the rare occasion in which we are downloading (though we should never download something that big over 3G) we don't NEED talk and data at the same time.
Click to expand...
Click to collapse
I'm very well versed in gsm cdma and tdma networks....voice and data at the same time will depend on a personal preference. I enjoyed using it bc I do meetings on the go. Sprint's network will allow that.
Ppl are getting confused with 3G...bc they assume since ATT has this that all carriers should have it..4G allows this.....
Sent from my Swagurious Evo...

T-Mobile Sample S2 has faster HSPA+

Hello
Located in NYC
I was at the T-Mobile Retail store to test the Galaxy S2's speedtest.net.
The speed I got from it was in between 9 Mbps - 15 Mbps.
However, I tried my own S2 and I am only getting 3-4Mbps
??? Hmmmmm how did that happen???
I called 611 to troubleshoot the issue, however the rep told me that it could be their network.
I asked if my old SIM has anything to do with it, she said the SIM does not matter.
Sigh... just wondering what you guys in NYC is getting
Thanks
In RI i get 14-18.
Sent from my SGH-T989 using XDA App
You need to use the sim that comes with the phone. Its an updated sim for this phone
Sent from my SGH-T989 using Tapatalk
clninja said:
You need to use the sim that comes with the phone. Its an updated sim for this phone
Sent from my SGH-T989 using Tapatalk
Click to expand...
Click to collapse
Thank you for your reply. I will try to call 611 asking for a free SIM. That stupid rep did not allowed me to get a free SIM.
Some stores have 3G cell sites built into them, which will give the phones in the store faster speeds than just outside the store.
I tested the phone with old sim card in NYC back in Dec. In chinatown it avg. 18-21mbps in Brooklyn was much slower, 5-8mbps. I got it used so no updated sim card that came with it. Now back in Puerto Rico where im now, its 8-10mbps. Im guess some part in NYC takes advantages of new HSDPA+ and some parts not.
Time of day, network traffic, signal strength, apps running on your phone, the cell site itself...these are all variables that can cause variance in data speeds.
personally, i think the Speedtest.net app itself is buggy. I can be in the same spot, run 3 tests, and get 3 different results. I've also run tests with the same type of phones sitting next to each other, and get completely different results.
Not all sites are pushing out the same speeds. Some may be pushing 42mb/s, while others may still be doing 21mb/s, and there are probably even some 7.2mb/s sites in "4G" cities. You can probably drive down the street and get a drastically different result.
Although the SIM that came in the box is new, you shouldn't see drastic changes in your old SIM vs the new one unless your old SIM was more than 2 years old. T-Mobile updated their SIM cards a few years back to better connect with the 3G/4G network. The SIM that came in the box (GBA SIM) is required for the Wi-Fi Calling, but that's it.
I live in Brooklyn, and my new white SG2 should be coming via UPS tomorrow (hopefully early in the day!). Will post results after I get the phone. Question - if the phone comes with its own new SIM, how do I get my info/acct transferred to the new SIM? Can I do this over the phone or do I need to go into a TMO store? In the meantime I can just pop in my old SIM and use it right away, correct?
Also, FWIW, on my MT4G I always get consistently faster speeds in Manhattan vs. Brooklyn. In my apartment I usually float around 3-5 mbps. I'm hoping I'll pick up a little extra with the SG2 but who knows...not a big issue though since when at home I usually hook up to the wifi.
You definitely need the new Sim. And that broad on the customer line lied. The Sim DOES matter.
Sent from my SGH-T989 using xda premium
cs378 said:
Hello
Located in NYC
I was at the T-Mobile Retail store to test the Galaxy S2's speedtest.net.
The speed I got from it was in between 9 Mbps - 15 Mbps.
However, I tried my own S2 and I am only getting 3-4Mbps
??? Hmmmmm how did that happen???
I called 611 to troubleshoot the issue, however the rep told me that it could be their network.
I asked if my old SIM has anything to do with it, she said the SIM does not matter.
Sigh... just wondering what you guys in NYC is getting
Thanks
Click to expand...
Click to collapse
I get 9-15 in nyc all day long. Must be your location or your sim.
clninja said:
You need to use the sim that comes with the phone. Its an updated sim for this phone
Sent from my SGH-T989 using Tapatalk
Click to expand...
Click to collapse
That is not true at all. I am on the $30 prepaid plan and used the sim that came with some cheap phone and I can easily hit 12-15mbps however Wi-Fi calling doesn't work. Please don't spread false facts. Yes, there's an updated sim but rarely ever will it make a difference except where I mentioned.
Sent from my Galaxy Nexus using xda premium
Here is proof of that.
Sent from my SGH-T989 using xda premium
@Sunsean, if you are coming from a mt4g, you probably don't have any info on your sim card. Just in case, you cab throw the old Sim in your galaxy, go to contacts > menu > import/export > import from Sim card. Then call customer care (or go into a store) to have your new Sim that came with the phone activated.
Sent from my SGH-T989 using XDA App
Just called Tmobile customer service and the guy got me a free new Sim card. I still have not gotten the Sim yet, but will update on the result. this new customer service guy did mention that the new Sim should improve the 4g service.
Sent from my SGH-T989 using XDA App
cs378 said:
Hello
Located in NYC
I was at the T-Mobile Retail store to test the Galaxy S2's speedtest.net.
The speed I got from it was in between 9 Mbps - 15 Mbps.
However, I tried my own S2 and I am only getting 3-4Mbps
??? Hmmmmm how did that happen???
I called 611 to troubleshoot the issue, however the rep told me that it could be their network.
I asked if my old SIM has anything to do with it, she said the SIM does not matter.
Sigh... just wondering what you guys in NYC is getting
Thanks
Click to expand...
Click to collapse
I have tge same problem..used to get around 12 to 14 now less than 1 mbps....nd i havent even hit half if my data limit yet!
Sent from my SGH-T989 using Tapatalk
I get surprisingly good speeds around 68th & 2nd, usually 12+mbps. From what I understand, the upload speeds for 4G seem to be capped at 1.7mbps? Can somebody please confirm for me? Thanks in advance.
I also live in New York city. HSPA+ is superb here. In the Bronx I get an average of 9 to 14 mbps down. And I'm on an older sim card, so be exact, the one that came with my mytouch 3g. Now that's an old sim.
Sent from my SGH-T989 using XDA App
abrown0809 said:
I also live in New York city. HSPA+ is superb here. In the Bronx I get an average of 9 to 14 mbps down. And I'm on an older sim card, so be exact, the one that came with my mytouch 3g. Now that's an old sim.
Sent from my SGH-T989 using XDA App
Click to expand...
Click to collapse
I'm using the sim card from my Sidekick LX now THAT'S an old sim.
abrown0809 said:
I also live in New York city. HSPA+ is superb here. In the Bronx I get an average of 9 to 14 mbps down. And I'm on an older sim card, so be exact, the one that came with my mytouch 3g. Now that's an old sim.
Sent from my SGH-T989 using XDA App
Click to expand...
Click to collapse
Midtown Manhattan. Hit 13mbps on a umts network here. All my hspa+ speeds were 12ish mbps. Using the sim that came with the phone.
Sent from my Hercules using XDA App
7-14 in the eastcoast for me and 12-22 in the west coast

Will a sprint galaxy nexus work in India?

I've got a photon that I can fall back on but I hugely prefer my JB-powered gnex... just trying to understand if it is compatible with the networks in India (Mumbai specifically).
Thanks!
Jeff
Sent from my GT-P7510 using Tapatalk 2
HiBoost said:
I've got a photon that I can fall back on but I hugely prefer my JB-powered gnex... just trying to understand if it is compatible with the networks in India (Mumbai specifically).
Thanks!
Jeff
Sent from my GT-P7510 using Tapatalk 2
Click to expand...
Click to collapse
are you going to be using a GSM network and have a GSM galaxy nexus? if so, yes it should work.
Sprint no, its CDMA.
Sent from my Galaxy Nexus using Tapatalk 2
I've read that there is cdma service in India, but is it some other frequency or something that makes it incompatible?
Sent from my Galaxy Nexus using Tapatalk 2
Just to finalize this thread, the Sprint Galaxy Nexus DOES work here in Mumbai. No problems or special settings needed. CDMA signal is significantly stronger than it is back in the states which is quite pathetic (on Sprint's behalf).
Wow I learned something new, I had no idea India had CDMA.
HiBoost said:
Just to finalize this thread, the Sprint Galaxy Nexus DOES work here in Mumbai. No problems or special settings needed. CDMA signal is significantly stronger than it is back in the states which is quite pathetic (on Sprint's behalf).
Click to expand...
Click to collapse
What network are you using it on? I am going to India later this year and it would be awesome if I would be able to use my GNEX (Verizon) there. I would be in Gujarat for the most part.
super_dk said:
What network are you using it on? I am going to India later this year and it would be awesome if I would be able to use my GNEX (Verizon) there. I would be in Gujarat for the most part.
Click to expand...
Click to collapse
I'm not even sure what the network is because this isn't anything I had to buy a SIM card for... I just turned the phone on and it popped up "Mumbai" on the screen, showed full strength (with the "R" by the bars for roaming), and sent me a text message saying voice was $2.49/min, incoming text is $0.05 and outgoing is $0.50 and data is $0.008/kb. I just used 3G watchdog to turn off mobile data completely. The guys here tell me that CDMA and GSM are both built up everywhere. It's pretty crazy to be driving in a cab through an area where people aren't even wearing shoes and there's stray dogs running through the street and I have 5 bars of signal. Yet back in the US I have 1-2 half the time... dammit Sprint really sucks.
HiBoost said:
I'm not even sure what the network is because this isn't anything I had to buy a SIM card for... I just turned the phone on and it popped up "Mumbai" on the screen, showed full strength (with the "R" by the bars for roaming), and sent me a text message saying voice was $2.49/min, incoming text is $0.05 and outgoing is $0.50 and data is $0.008/kb. I just used 3G watchdog to turn off mobile data completely. The guys here tell me that CDMA and GSM are both built up everywhere. It's pretty crazy to be driving in a cab through an area where people aren't even wearing shoes and there's stray dogs running through the street and I have 5 bars of signal. Yet back in the US I have 1-2 half the time... dammit Sprint really sucks.
Click to expand...
Click to collapse
Thanks. I thought you changed the sim card to use it on one of the Indian networks. They do have good coverage in Urban areas both CDMA and GSM. I noticed that last year when I went there and my OG droid came up with a signal and an R just like yours. I did not use it however because of the high rates.

Learnt something about Canadian LTE from a buddy who works for a carrier here

So I was enjoying a cigar with a buddy who is a field tech for a Canadian carrier (not mine rogers, but another one) when we got on the topic of a samsung tablet work issued him.
He said he uses it to troubleshoot LTE issues they've been having.
Basicly the device loses LTE and either goes into "no service" or get's stuck in HSPA+.
I freaked because i've noticed the same issue, but thought it was related to CM10 running on my phone.
Apparently they discovered it has to do with they're infrastructure. The phone loses LTE, tries to re-negotiate,gets rejected, and stops trying.
They're work around is to get firmware updates to get the devices (he didn't mention which ones) to re-negotiate a second (or third time) where it almost always goes through.
I just reboot or bounce air plane mode and it often works.
Just figured people might find that interesting.
stavrosg said:
So I was enjoying a cigar with a buddy who is a field tech for a Canadian carrier (not mine rogers, but another one) when we got on the topic of a samsung tablet work issued him.
He said he uses it to troubleshoot LTE issues they've been having.
Basicly the device loses LTE and either goes into "no service" or get's stuck in HSPA+.
I freaked because i've noticed the same issue, but thought it was related to CM10 running on my phone.
Apparently they discovered it has to do with they're infrastructure. The phone loses LTE, tries to re-negotiate,gets rejected, and stops trying.
They're work around is to get firmware updates to get the devices (he didn't mention which ones) to re-negotiate a second (or third time) where it almost always goes through.
I just reboot or bounce air plane mode and it often works.
Just figured people might find that interesting.
Click to expand...
Click to collapse
Bell has had the same issue (for a while), I haven't received any calls about it recently but also didn't receive an email about it being resolved but it appears so. Our temporary resolution for it was to just keep it at H+ for the time being
Found where I posted about it here
I'm on fido with a rogers phone and I have never lost LTE
Sent from my SGH-I747M using XDA Premium HD app
stavrosg said:
So I was enjoying a cigar with a buddy who is a field tech for a Canadian carrier (not mine rogers, but another one) when we got on the topic of a samsung tablet work issued him.
He said he uses it to troubleshoot LTE issues they've been having.
Basicly the device loses LTE and either goes into "no service" or get's stuck in HSPA+.
I freaked because i've noticed the same issue, but thought it was related to CM10 running on my phone.
Apparently they discovered it has to do with they're infrastructure. The phone loses LTE, tries to re-negotiate,gets rejected, and stops trying.
They're work around is to get firmware updates to get the devices (he didn't mention which ones) to re-negotiate a second (or third time) where it almost always goes through.
I just reboot or bounce air plane mode and it often works.
Just figured people might find that interesting.
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When I bought my S3 at the Bell store here in Québec city a few weeks ago, the salesmen insisted on NOT giving me a LTE sim card.
What he told me conquers with what you are describing.
I accepted is suggestion and got a H+ micro sim.
Since then, I returned to the store to get a LTE sim card and I did encounter the issue once or twice.
I am now forcing my phone to remain on H+ at best via Settings > Wireless & networks > Mobile networks > Network mode.
In the greater HRM (Halifax/Dartmouth/Bedford) we have a pretty good LTE footprint according to the Rogers website, but my S3 is constantly reconnecting. I can tell because every time it drops LTE, my visual voicemail app will notify that it has no service.
I turned LTE off because it was just hammering my battery. I could barely make it through a 10 hour work day with little to no usage if I leave LTE on, and I'm supposedly in the middle of the service area.
trendiggity said:
In the greater HRM (Halifax/Dartmouth/Bedford) we have a pretty good LTE footprint according to the Rogers website, but my S3 is constantly reconnecting. I can tell because every time it drops LTE, my visual voicemail app will notify that it has no service.
I turned LTE off because it was just hammering my battery. I could barely make it through a 10 hour work day with little to no usage if I leave LTE on, and I'm supposedly in the middle of the service area.
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Off topic: CM10 has awesome battery life with LTE i find
I first read about LTE causing loss of service several months ago. I returned my first SIII because of it and the replacement phone would also loose service randomly. So now if I want to be assured that my phone is working when I really need it to, I have to disable LTE. Seems like more people need to know this since for some people it is important to know that your phone hasn't just decided to go into NO SERVICE mode without warning.
I'm told service providers were, until recently, strongly denying there is any such problem with LTE. It wasn't until the iphone5 came out with the same issue that this became a real problem for customer service.
What cigar were you smoking?
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Hoshneer said:
What cigar were you smoking?
Sent from my SGH-I747 using Tapatalk 2
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Partagas Series D #4 and montee cristo edmundo.
stavrosg said:
Partagas Series D #4 and montee cristo edmundo.
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Mmm, blunt wrap =P
HiKsFiles said:
When I bought my S3 at the Bell store here in Québec city a few weeks ago, the salesmen insisted on NOT giving me a LTE sim card.
What he told me conquers with what you are describing.
I accepted is suggestion and got a H+ micro sim.
Since then, I returned to the store to get a LTE sim card and I did encounter the issue once or twice.
I am now forcing my phone to remain on H+ at best via Settings > Wireless & networks > Mobile networks > Network mode.
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Click to collapse
That's completely stupid... hopefully you didn't have to pay for the replacement.
stavrosg said:
Partagas Series D #4 and montee cristo edmundo.
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Oh, hell dude. You can never go wrong with a PSD 4 one of my absolute favorite Cubans. I haven't had the Montecristo yet but I've heard good things. Good choices man.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
Not sure if this is the same issue, but I sometimes receive a "not registered on network" or "sim not registered" when phone switches from LTE to 4G or comes back after being in a no service area.
A tech calls me once a week to track the issue and he told me last week they put out a fix for eastern canada and will soon do the same out west if it works. This is Telus by the way.
If you are running into what I mentioned all you have to do is switch to GSM/HSPA Auto mode under - settings/more settings/mobile network/network mode.
Of course you won't have LTE but its a reliable temp solution if you require consistent service.
MTS LTE
I've heard similar from MTS about their LTE!
My Galaxy S3 works fine on LTE, but my brother's S2 LTE never seems to display LTE on the screen, just says 4G all the time, yet speed test results indicate it really IS LTE! The first 2 weeks, his phone kept dropping to NO SERVICE randomly, but more often than not! We swapped out the LTE SIM on day 2 since the first seemed to be defective. After that, I updated the S2 to the latest release OS which seemed to have remove SOME of the issues.
From what I've heard, the LTE towers need the phone to be quiet on network activity for 20 seconds or so before it will attempt to jump back onto LTE. The S3, being much faster, doesn't seem to have issues flipping around as it needs. I'm told they are deciding which software/firmware to upgrade their towers too which will hopefully happen early 2013!
So I'm wondering if this might be the same issue with other carriers, where the problem is ACTUALLY with the towers and not devices?!
zexco said:
That's completely stupid... hopefully you didn't have to pay for the replacement.
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Not that stupid as I, like I said, did experience the issue since I got my LTE sim card.
But to answer your question, no I did not have to pay for the new sim card.
I've done the same. I find "4G" fast enough for the most part, so I just leave LTE off for the gain in battery life.
Also in Halifax I might add!
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