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[Q] AT&T HTC One X Speedtest.net App?

so the LTE on this thing downloads pretty fast according to the speedtest.net app
but when the app goes to test the upload speed, it crashes saying network failure, every time, after reinstalls and reboots too..
anyone else experiencing this issue?

Yes,
Post on this thread that already exists
http://forum.xda-developers.com/showthread.php?t=1634147&page=4
---------- Post added at 01:18 PM ---------- Previous post was at 01:13 PM ----------
btw, the best thing to do at this point is the email speedtest about the issue. See my post about that.
http://forum.xda-developers.com/showpost.php?p=25842689&postcount=31

It runs just dandy on the Rogers device.

craig0r said:
It runs just dandy on the Rogers device.
Click to expand...
Click to collapse
Yes it does. I wonder what the difference is?

Only indoors where my signal is on and off intermittently and weak. I believe this to be associated with a general issue that a few people I see are having. Something about the signal on the One X on AT&T is REALLY off. Really fishy. Some people see this issue when using WiFi...And when they turn everything off. Then turn on airplane mode and then off and turn mobile network back on...It seems to connect again and stay connected.
For me, it's just on/off constantly. It never holds down a mobile data connection (indoors).
However. Going outside I can use the speedtest.net app without those network errors. Over and over no problem. So I'm not sure this is a problem with the speedtest app, I think it's a general issue with the One X on AT&T and signal. Something is really whack and I can't figure it out. I'm trying to check with other people and look for all information my phone gives me. It's just terrible. My phone is completely useless inside. I'm going to go outside and test around a bit. If this doesn't clear up I'll have to return everything to AT&T I guess and stick with Sprint Slower speed due to no LTE but least I can use the damn thing. I REALLY want the AT&T version though and the LTE. I just wish they would fix their crap so it would be consistent.
edit -- OH and one more thing. Your icons up top for 4G/LTE and signal bars...They're utterly useless and meaningless. You can't trust them. If you watch the settings > networks menu where you can turn things on/off you'll see the gray text under the mobile network telling you about its status and it'll just keep flipping from connected to connecting... off on off on all day long. but your icons up top could very well bit lit up like you're connected. you're not. that's why you get network errors in the speedtest app. during the middle of the test AT&T is dropping your connection.
when getting e-mail and loading web pages, this issue will not be very apparent because pages load various assets and when you are actually connected the speed is decent. the browser will keep loading and waiting so it'll just look "slow" to you. it's likely not even slow. it's just on and off all the time. e-mail is small and comes in burst like i'll say, bad language but whatever. the speedtest is noticeable because it's a constant thing. try streaming a video or music and i bet you'll see it be more apparent but even then if you have enough buffer you still may not see the issue. it's super spotty service. very angry.

[Verizon] Did I get a bad S3?

I got a my phone at best buy today and I have 2 complaints, speakerphone call quality is very bad, I can hear like if there is a fan blowing air into the microphone while I'm in a quite room. The other thing I noticed was the signal strength, my wife Samsung Stratosphere has 3-4 bars and my S3 has 1-2 bars. Did I get a bad phone or that's the way the phone works?
TIA!

Vertig0 said:
I got a my phone at best buy today and I have 2 complaints, speakerphone call quality is very bad, I can hear like if there is a fan blowing air into the microphone while I'm in a quite room. The other thing I noticed was the signal strength, my wife Samsung Stratosphere has 3-4 bars and my S3 has 1-2 bars. Did I get a bad phone or that's the way the phone works?
TIA!
Click to expand...
Click to collapse
Can you elaborate a little on your user experience? Sounds like a faulty phone but please give more info
Sent from the current Heavy Weight champ GALAXY SIII

Vertig0 said:
I got a my phone at best buy today and I have 2 complaints, speakerphone call quality is very bad, I can hear like if there is a fan blowing air into the microphone while I'm in a quite room. The other thing I noticed was the signal strength, my wife Samsung Stratosphere has 3-4 bars and my S3 has 1-2 bars. Did I get a bad phone or that's the way the phone works?
Click to expand...
Click to collapse
The number of bars displayed is not directly comparable. Phones can be configured to display a certain number of bars at a certain signal strength. Both phones could have the exact same single strength and be calibrated to visually display entirely differently.

Bars mean nothing. Apple once changes the bars to "better reflect network connections" or something... signal strength is important its in the settings menu...
Sent from my AT&T Galaxy SIII (SGH-i747)

ingenious247 said:
Can you elaborate a little on your user experience? Sounds like a faulty phone but please give more info
Sent from the current Heavy Weight champ GALAXY SIII
Click to expand...
Click to collapse
For example, I called my wife omw home and she was complaining that she could not understand me because it was too loud and she could hear everything around me but me. When I got home I tested the phone having her calling my from my phone and when she switched to speakerphone I was able to listen the A/C louder than her.
The signal strength is just that, her phone gets 3-4 bar and mine gets 1-2 bars 1bar must of the time.

Vertig0 said:
For example, I called my wife omw home and she was complaining that she could not understand me because it was too loud and she could hear everything around me but me. When I got home I tested the phone having her calling my from my phone and when she switched to speakerphone I was able to listen the A/C louder than her.
The signal strength is just that, her phone gets 3-4 bar and mine gets 1-2 bars 1bar must of the time.
Click to expand...
Click to collapse
From my experience the phone is really good at canceling out background noise. My sister was driving her loud car while talking to me on her S3 and I couldn't even hear it, I used to be able to. I'd see if you could get it replaced.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

No Probs
I have not had any of the problems you are talking about. I would try to find another one and do a side by side.

ainen said:
From my experience the phone is really good at canceling out background noise. My sister was driving her loud car while talking to me on her S3 and I couldn't even hear it, I used to be able to. I'd see if you could get it replaced.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
Click to expand...
Click to collapse
Was that using the speakerphone?

If you're not pleased, return it. The signal bars on the 2 devices shouldn't be compared, however, as ICS has a different algorithm of calculating LTE signal bars than versions of Android before it. This was covered at great length when the Verizon Galaxy Nexus first came out.
Sent from my SCH-I535 using Tapatalk 2

my speakerphone sounds pretty crappy too

Mean Bro Greene said:
If you're not pleased, return it. The signal bars on the 2 devices shouldn't be compared, however, as ICS has a different algorithm of calculating LTE signal bars than versions of Android before it. This was covered at great length when the Verizon Galaxy Nexus first came out.
Sent from my SCH-I535 using Tapatalk 2
Click to expand...
Click to collapse
I see... so it might be an ics bug? I just drove to my closest tower and that was the only time my phone was full bars as soon I drove away like two blocks away I was already down to 3 bars. Also I did a test side by side with my wife's phone and her phone performed on LTE waaay better than my S3...
Sent from my SCH-I535 using Tapatalk 2

Vertig0 said:
I see... so it might be an ics bug? I just drove to my closest tower and that was the only time my phone was full bars as soon I drove away like two blocks away I was already down to 3 bars. Also I did a test side by side with my wife's phone and her phone performed on LTE waaay better than my S3...
Sent from my SCH-I535 using Tapatalk 2
Click to expand...
Click to collapse
She's connected to WiFi....

culpin said:
She's connected to WiFi....
Click to expand...
Click to collapse
she's not.. I noticed that... even if I disconnect from wifi still show the icon letting me know there is wifi available...

Speakerphone and Headphone quality is horrible, on both ends of the call
Having similar problems here!!!!
Having major problems with speakerphone and headphone use while in a car.
The speakerphone in general doesn't sound very clear. Both ends sound like wind or a fan is blowing right into the microphone. It sounds garbled on both the sending and receiving end of the call. Same issue with headphones.
Basically everyone says it sounds like the windows are down and a wind storm is blowing. Windows are up, and no A/C fan is blowing onto the phone.
Second phone with same problem. Bad batch? Basically impossible to use it in a car. Even when not in a car, the speakerphone quality is not that great.
Any suggestions? Maybe there is a setting that needs to be turned on/off?

anyone else with sound issues?

Wish I could be of help. My GS3's voice/sound quality is easily the best I've had on any smartphone I've owned. You might want to take that in and have the reps compare it against another GS3 or if you know someone else who has the same phone, you could test their device against yours.

Alright know this is unrelated to the OP, but I was wondering about mine too. I just got my second S3 from verizon. My first one had some loose housing on the back and creaked like a loose floorboard every time it was touched. Now the new one they sent me today has a dark spot on the screen. It's not noticeable when there are light colors in that area, but when it's dark it's definitely visible. I remember seeing threads about this a while back but didn't take much time reading them. Is this something I should return it for? Thanks for any help

seems you're not alone in the cell reception issue. There's 2 other threads going about this very issue. One in this sub forum, the other is : http://forum.xda-developers.com/showthread.php?p=29166050#post29166050 . Call and get a tech support ticket opened. The more people opening tickets the faster we get this issue resolved...lol it'll still be slow as ****, but what can you do?
---------- Post added at 10:30 AM ---------- Previous post was at 10:24 AM ----------
Vertig0 said:
she's not.. I noticed that... even if I disconnect from wifi still show the icon letting me know there is wifi available...
Click to expand...
Click to collapse
That's a "feature" lol. God I can't wait for the bootloader thing to get cracked so we can get some real ROMs going for this thing. The carriers want you off their network, like 5 minutes ago, and they're willing to do ANYTHING even if it's make your phone automatically connect to random networks against your wishes to get you off their network and on to someone else's. It wouldn't shock me to find out they lower the output on their towers artificially to keep folks in the sticks from getting a signal to force them to provide their own bandwidth the way they try to force us to us WIFI when we pay perfectly good money for our wireless connections.
You can shut off some of the annoying reminders in the auto-connect area...but never all. It's always gonna try to dump you onto WIFI. The carriers hate you using their precious bandwidths you paid for..
---------- Post added at 10:38 AM ---------- Previous post was at 10:30 AM ----------
Vertig0 said:
I see... so it might be an ics bug? I just drove to my closest tower and that was the only time my phone was full bars as soon I drove away like two blocks away I was already down to 3 bars. Also I did a test side by side with my wife's phone and her phone performed on LTE waaay better than my S3...
Sent from my SCH-I535 using Tapatalk 2
Click to expand...
Click to collapse
No you're not imagining it, you can see one of the antennas molded into the plastic under the back cover, at the base of the handset...you know right where the fat of your palm rests when actually using the device in portrait mode. There appears to be another at the top right hand side. Dunno which antenna is what...but I did notice if you keep your hand off the bottom area, my signal goes up some. But when the signal changes so much by moving it a few feet one way or another who can really tell what effects what. Also, my flimsy plastic/silicon type case from verizon appears to knock 5-10 dbm off my signal strength too...great stuff that.

I have noticed this exact same thing.
My mom and sister say that it sounds like there is a lot of wind on the phone when I call them. Particularly on speaker phone but even when not. This is when I am inside or in my relatively quiet car.
I hope VZ doesn't try to f** around with me in the store. I have had nothing but horrendous customer service with this POS company before. I bought an expensive product and I expect it to work as a PHONE.

Hey at least you didn't get the crap shoot I got. I would get little dots all over my letters on the screen pretty often (but not all the time). Couldn't get rid of em no matter what I flashed or reset. Had to bring it back to Verizon and practically shove the thing in the old guy's face to get him to see the dots. He basically refused to return it. I complained to their corporate offices and hopefully that guy got a spanking. Another guy graciously exchanged it for me. I thanked him profusely.

Issues with this phone?

I've read reports on the Internet of many users having issues with the Samsung Galaxy S3 such as small cracks appearing in the casing of the phone out of no where. Another thing is the weak signal strength this phone is known for. All the reports I could find were outdated and I really want to like this phone and purchase it.
I'd like to know if anyone knows if these problems have been fixed by Samsung.
Thanks in advance!

Touchpadnoob said:
I've read reports on the Internet of many users having issues with the Samsung Galaxy S3 such as small cracks appearing in the casing of the phone out of no where. Another thing is the weak signal strength this phone is known for. All the reports I could find were outdated and I really want to like this phone and purchase it.
I'd like to know if anyone knows if these problems have been fixed by Samsung.
Thanks in advance!
Click to expand...
Click to collapse
easily the best phone ive ever owned.
no problems yet

Touchpadnoob said:
I've read reports on the Internet of many users having issues with the Samsung Galaxy S3 such as small cracks appearing in the casing of the phone out of no where. Another thing is the weak signal strength this phone is known for. All the reports I could find were outdated and I really want to like this phone and purchase it.
I'd like to know if anyone knows if these problems have been fixed by Samsung.
Thanks in advance!
Click to expand...
Click to collapse
Signal has been top notch on mine.....Just as good as my wife's Rezound. Much much better then my GNEX!

Below 40% battery the signal becomes progressively weaker, noticably so, but no issues with calls, mostly manifests itself in data.
Otherwise, though, great signal. As I sit here in the middle of a state park far from anything. I travel a lot, neighborhood of a thousand interstate miles a week, and haven't dropped a call yet.
Device rocks, and haven't noticed any physical deterioration. As a smartphone you can't do any better on the market today in terms of quality, performance or features.
Worth getting the 32 gig model and slapping a 64 gig card in it. Nothing like having nearly 100 gigs of immediately available interactive storage.
4g lte is impressively fast.

one thing to remember is somebody will always have something to gripe about no matter what. that being said the s3 is by far the most solid device i have ever owned!

I've had two different Galaxy S3's on Verizon, and both have horrible data issues. Disconnects from data, and not gaining data back until reboot, slow data speeds when I have it, and signal bars constantly going from 1 to 2 to 3 to 4 to 3 to 2 to 3 to 4 etc....
The second phone has never been rooted or modified, and the first one I tried everything I could think of. So many ROMs, modems, and flashes, and nothing worked. Other Verizon phones nearby work just fine. Just my experience though.

Thread is called issues with this phone
Let's keep other phones out of it
Thanks
Thread cleaned
FNM

kennyglass123 said:
Thread is called issues with this phone
Let's keep other phones out of it
Thanks
Thread cleaned
FNM
Click to expand...
Click to collapse
If you are referring to me then I was talking about the Galaxy S3. The OP was talking about the Galaxy S3 too.
Sent from my iPhone using Tapatalk

I only got 2 bars where I am at, but looking at my family's other phones, they are about the same in reception (razr droid) . Now my dad who lives out of state, is telling me that when he calls me, it goes straight to voice mail (i dont see any indication that he called) , so this is an issue im trying to figure out, but I have a custom rom and kernal. So hard to say what the issue is for me ( I also got a crack on the screen already from slippage the 2nd day I owned the phone, but its very minimal), happened because I didn't have a case at the time.
https://sphotos-a.xx.fbcdn.net/hphotos-snc7/s720x720/386262_10151093476528557_832449593_n.jpg
The phone otherwise is awesome, Get some good protection for it, it is a must! I carry it in my pocket,but I do feel like if someone bumps up against my thigh that it could break.

I think people are to caught up in the bars. I never look at the bars. If my phone has 4G and I don't drop calls then there is no problems with the radio. I even get 4G in fringe areas where my GNEX did not.
Also, my wife's rezound can say she has 3 bars is a fringe areas but it still takes 10 minutes to
load a webpage.
Bars are a bunch of BS. Usage is what really counts.

Signal strength is what matters. I'm actually considering I might have a bad phone since it constantly loses data or drops to 1x in my apt, where the map shows full 4G coverage and my previous phone (Sprint) never had a single issue. Tested a friends Nexus and it had slow speeds but never lost a connection, and the Nexus is said to have really poor reception.

ECrispy said:
Signal strength is what matters. I'm actually considering I might have a bad phone since it constantly loses data or drops to 1x in my apt, where the map shows full 4G coverage and my previous phone (Sprint) never had a single issue. Tested a friends Nexus and it had slow speeds but never lost a connection, and the Nexus is said to have really poor reception.
Click to expand...
Click to collapse
First question are you rooted? if not you should get an update from Verizon with a new modem. If so go to the modem link and down the newest modem and flash it via Odin. I flashed mine and it seems to help with the single problem I was having. Also when you look at the bars I was told that if your data is on the bars you see is for your data when it is off the bars you see is for your voice.

silver1882 said:
First question are you rooted? if not you should get an update from Verizon with a new modem. If so go to the modem link and down the newest modem and flash it via Odin. I flashed mine and it seems to help with the single problem I was having. Also when you look at the bars I was told that if your data is on the bars you see is for your data when it is off the bars you see is for your voice.
Click to expand...
Click to collapse
I am a bit confused by this advice going around. I am rooted, and unlocked. I checked for root access a few times before posting this, and I can still do everything I could before. I have manually received the OTA update, and don't notice a difference in my root capabilities. Are you saying something was supposed to break once I updated?

LTE signal indicator issues

I've realised that the signal strength in Phone Status (in dBm) does not seem to work correctly when on LTE. Very often, it'll show that my signal is -113 dBm, which is an extremely weak signal, while showing 2 or 3 signal bars. Something is obviously wrong as 3 out of 4 bars should NEVER be as weak a signal as -113 dBm. Is anyone else experiencing this?
G920F (bought from Germany) on 3 UK.

Japultra said:
I've realised that the signal strength in Phone Status (in dBm) does not seem to work correctly when on LTE. Very often, it'll show that my signal is -113 dBm, which is an extremely weak signal, while showing 2 or 3 signal bars. Something is obviously wrong as 3 out of 4 bars should NEVER be as weak a signal as -113 dBm. Is anyone else experiencing this?
G920F (bought from Germany) on 3 UK.
Click to expand...
Click to collapse
LTE dBm are calculated differently. 113 is good around 140 is bad.

SmiLey497 said:
LTE dBm work different. 113 is good around 140 is bad.
Click to expand...
Click to collapse
I've read that signal drops off at -120, so -113 is pretty close to the edge, but either way, that signal indicator is wrong. If I go into the service menu (*#0011#) the RSRP (dBm) it shows fluctuates from -91 to -98, which seems to be the more appropriate dBm for 3 bars of signal. The dBm in my phone status still stays static at -113 (it doesn't fluctuate at all)

As per your request in the other topic here are my findings.
I live in Amsterdam and I work in the harbour area (a lot of open spaces). I work next to a 4 x 3 meter window. With every device I've owned I would get full reception. Though under settings > device > status it would always say -113. My reception bar is always near empty.
When I go outside, even in the middle of a park in the middle of the city with nobody around, I will still get the same result. In my apartmentbuilding, on the 7th floor outside on my balcony, same result.
I'm currently in the office so I thought I'd send a screenshot of what the *#0011# screen looks like.
(Apologies for the big image)
In my parking garage I would even get reception with my OnePlus One, which isn't really great when it comes to reception. It would be only a sliver, but at least I would get something. The S6 doesn't get anything. When I leave the bigger urban area I'm immediately knocked off 4G and 3G and I'm pretty much left to calling and texting. The Netherlands isn't really like the outback of Australia, I had expected better
I can live with not having reception in my parking garage, but I'm more concerned with the fact that I've never seen more reception than you can see in that screenshot and that I have close to no reception when I go out of town. I'm using T-Mobile which I know only uses the higher frequencies. In the Netherlands they use 900 MHz, 1800, 2600 MHz. I don't know if that comes into play much. I had a bit better reception when I was still at Vodafone, but that was a few years back. With a top of the line device like the S6 I had expected better. Much better.
Maybe I should have the device swapped?

Thijsvr said:
As per your request in the other topic here are my findings.
I live in Amsterdam and I work in the harbour area (a lot of open spaces). I work next to a 4 x 3 meter window. With every device I've owned I would get full reception. Though under settings > device > status it would always say -113. My reception bar is always near empty.
When I go outside, even in the middle of a park in the middle of the city with nobody around, I will still get the same result. In my apartmentbuilding, on the 7th floor outside on my balcony, same result.
I'm currently in the office so I thought I'd send a screenshot of what the *#0011# screen looks like.
(Apologies for the big image)
In my parking garage I would even get reception with my OnePlus One, which isn't really great when it comes to reception. It would be only a sliver, but at least I would get something. The S6 doesn't get anything. When I leave the bigger urban area I'm immediately knocked off 4G and 3G and I'm pretty much left to calling and texting. The Netherlands isn't really like the outback of Australia, I had expected better
I can live with not having reception in my parking garage, but I'm more concerned with the fact that I've never seen more reception than you can see in that screenshot and that I have close to no reception when I go out of town. I'm using T-Mobile which I know only uses the higher frequencies. In the Netherlands they use 900 MHz, 1800, 2600 MHz. I don't know if that comes into play much. I had a bit better reception when I was still at Vodafone, but that was a few years back. With a top of the line device like the S6 I had expected better. Much better.
Maybe I should have the device swapped?
Click to expand...
Click to collapse
I see that your RSRP is the same as what it states in the phone status menu. Does this number ever change? For me, I (mostly) always see -113 (such as right now in my office) but my RSRP actually fluctuates. Screenshot of my RSRP attached.

Japultra said:
I see that your RSRP is the same as what it states in the phone status menu. Does this number ever change? For me, I (mostly) always see -113 (such as right now in my office) but my RSRP actually fluctuates. Screenshot of my RSRP attached.
Click to expand...
Click to collapse
In my phone status window I've never seen it change. In the RSRP it does vary a little bit, from -115 to -110.
I actually just got it working properly for the first time. I went to the rooftop of my office, as far away from anything that could interfere and I got -77. Bars actually went up too which I haven't seen before. So I guess the device really does just have poor reception. Strange that not more people are reporting on this though.
Edit. These guys are also reporting on low signal stuff: http://www.theregister.co.uk/2015/04/08/samsung_galaxy_s6/

Thijsvr said:
In my phone status window I've never seen it change. In the RSRP it does vary a little bit, from -115 to -110.
I actually just got it working properly for the first time. I went to the rooftop of my office, as far away from anything that could interfere and I got -77. Bars actually went up too which I haven't seen before. So I guess the device really does just have poor reception. Strange that not more people are reporting on this though.
Edit. These guys are also reporting on low signal stuff: http://www.theregister.co.uk/2015/04/08/samsung_galaxy_s6/
Click to expand...
Click to collapse
Unfortunately, I've noticed the same thing, though not nearly as bad as what The Register is experiencing. For me, it is only slightly worse than my G3.

Japultra said:
Unfortunately, I've noticed the same thing, though not nearly as bad as what The Register is experiencing. For me, it is only slightly worse than my G3.
Click to expand...
Click to collapse
The review sounds pretty accurate to me, but others are reporting their device has connectivity as good as HTC's M9. Luckily I've got an M9 lying around, so I'll put my sim in that and see if it too gives me poor reception.
---------- Post added at 02:49 PM ---------- Previous post was at 02:36 PM ----------
Haha, I guess I have to blame T-Mobile and not Samsung. The M9 I have gets -112 dBm at the same location where the S6 has -113 dBm. Seems the problem is with the network and not with the device. Not sure yet if that's good news or not

Thijsvr said:
The review sounds pretty accurate to me, but others are reporting their device has connectivity as good as HTC's M9. Luckily I've got an M9 lying around, so I'll put my sim in that and see if it too gives me poor reception.
---------- Post added at 02:49 PM ---------- Previous post was at 02:36 PM ----------
Haha, I guess I have to blame T-Mobile and not Samsung. The M9 I have gets -112 dBm at the same location where the S6 has -113 dBm. Seems the problem is with the network and not with the device. Not sure yet if that's good news or not
Click to expand...
Click to collapse
Well, it's good that you know it's not your S6! I was actually walking along a street where I got horrible reception with the G3 (after I posted the last comment) and realised I was actually holding onto a signal when the G3 would lose signal completely. Guess it's not as bad as I thought!

Japultra said:
Well, it's good that you know it's not your S6! I was actually walking along a street where I got horrible reception with the G3 (after I posted the last comment) and realised I was actually holding onto a signal when the G3 would lose signal completely. Guess it's not as bad as I thought!
Click to expand...
Click to collapse
We're just too critical Glad we got it solved, haha. Back to fully enjoying the device!

I have this issue also.
I had a nexus 5 before on EE and pretty much always had 3-4 bars if not full signal. On the GS6 still with EE i rarely see it go above 1 bar.
I am still within my 14 day return time but i am stuck now with what to do. Do i risk waiting to see if this is fixed with a software update or return it. If i wait and its not fixed them im stuck with a phone that gets very little signal. If i return it i have no idea what else i would get as i love this phone. I have also tried another GS6 in store but same issue so makes me wonder is this a software or hardware issue. Seems several people on varying networks have this issue.

I have the same experience. -113 dBm at home inside our house.
1 max 2 bars on the signal indicator. Lots of places where I had 4-5 bars on my One M8 I now have these -113 dBm on S6 4G, or only 3G connection (-79 dBm - 4 bars, the max on S6). Sitting here with my SIM card placed in my M8 I get -98 dBm 39 asu inside our house. Thats 4 out of 5 bars on the HTC indicator. It's the same with other 4G handsets we have in the house. I have a cheap company Nokia 4G phone that also have 4 bars inside the house. I've had a Z3 compact that also had great reception on 4G. I think I have data enough to conclude:
Conclusion: S6 have bad LTE/4G reception. Very very sorry about this. This is a real stepdown from what I otherwise think of the S6 handset. Other than that, I don't know wether this can be made better by software, but I doubt it..
EDIT: Just tried by wifes Samsung A5, which sees -97 dBm on my SIM card.

Different carrier roms seem to deal with the signal differently, but essentially it's a cosmetic issue. I'm using the Three UK (H3G) rom and my signal bars work fine but my dBm signal level in settings is always stuck at -113dBm.
I took these 2 screenshots at the same time standing in a great 4G signal area:
http://i.imgur.com/n6eUmaS.png
http://i.imgur.com/v5KsmgH.png
As you can see, the settings shows -113dBm but the service menu (*#0011# in dialer) shows -84dBm.

Maybe this thread is really about that - the signal interpretation internally. But nevertheless my S6 handset is 'downscaling' to 3G all the time (and staying there), hente twice the roundtrip and less bandwidth for me.

duckstardeluxe said:
Maybe this thread is really about that - the signal interpretation internally. But nevertheless my S6 handset is 'downscaling' to 3G all the time (and staying there), hente twice the roundtrip and less bandwidth for me.
Click to expand...
Click to collapse
It sounds like you have a different issue. Have you tried checking what your signal is in the service menu using *#0011#?

I'm getting an error dialing the service menu (OSSD code) stating N/A.

duckstardeluxe said:
I'm getting an error dialing the service menu (OSSD code) stating N/A.
Click to expand...
Click to collapse
Are you typing it in exactly like this: *#0011# ?

Here in Italy very bad signal with TIM also with 3g. Where my Iphone and Note 4 get full signal only 2 bars on my GS6. What the hell Samsung always release buggy phone!!!

I forgot to mention that I was running the Lite version of the stock rom found here on XDA. The service code don't work on that rom, which made me downgrade to my backup of the stock rom.
I'm getting RSRP:-98 RSRQ:-6 RSSI:-71

duckstardeluxe said:
I forgot to mention that I was running the Lite version of the stock rom found here on XDA. The service code don't work on that rom, which made me downgrade to my backup of the stock rom.
I'm getting RSRP:-98 RSRQ:-6 RSSI:-71
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That matches your M8.

S6 Switches from LTE to LTE+ Whenever Modem Takes Load

Hi all,
Just got my brand new S6 in white a few minutes ago.
I loaded some tests that I always do when getting a new phone, one of them is the RGB dead pixel test, this is a youtube video I run. I noticed as the video was loading that LTE switched to LTE+ momentarily and then switched back to LTE. This appears to occur anytime the modem is about to load anything with some significant data behind it. Is this normal?
It is slightly annoying to see a flash in the status bar every time the phone shifts, but of course, I can bear it if it's appropriate. I am just worried these switch offs are a sign of weak modem signal (the network is strong, I see full bars in LTE regular mode).
Please advise, the gustapo here only allows me to return the phone if I don't talk on it for more than 15 minutes. Everything else looks in order, just want to ensure this isn't an issue so I can use my dang phone!
Thanks so much!
PS: One last thing, does this thing ever get hot! Upon doing a system update and installing all my apps I could barely hold the thing without massive hand sweat, is that normal? I believe it is an unfortunate side-effect of having such a powerful set of cores. Thanks again!

Anyone? Can anyone chime in about the heat at least? Thanks very much!

I think this is more of a network issue than a phone issue. The phone will always switch to the more stable consistant network speed, especially during heavy data transfer. Also the cellular network has a limited number of LTE+ slots on a given tower, which can result in frequent switch over.
The download performance between LTE and LTE+ should be neglegable anyway. It's the latency that mainly differentiate the two.
You could try disable "smart network swich" in the WiFi settings, but I doubt that would help, as that is more geared toward WiFi and cellular data switching.
---------- Post added at 03:09 AM ---------- Previous post was at 03:06 AM ----------
Heat wise, it's normal for modern multi-colour devices to get hot during (even moderate) use.
My old HTC Sensation used to get hot to the touch when under heavy gaming or even Web browsing.
I'm waiting for the day that mobile phones come out with fans or liquid cooling! [emoji14]

autom8r said:
Anyone? Can anyone chime in about the heat at least? Thanks very much!
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A factory reset has been known to cure this for others. YMMV