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What's the reported signal strength of the One S compared to other phones?

There have been a few reports that the One series has poor reception.
For example my HTC Desire constantly has about 7-9dB** lower signal than my old Nokia N79 - I was hoping that the new One S would have better reception, but the forums are complaining about fewer "bars" of signal strength. Unfortunately the latter is meaningless because "bars" are uncalibrated and signal level is highly dependent on exact position and whether the unit is held in the hand or not.
Rather than hearsay, I would like to know if One S owners could do a comparison with their old phone to see if it is much worse.
Using the *#*#4636#*#* code if you could report the signal level (dBm) and the connection mode (3G, 2G, GSM whatever) between your One S and old phone when lying in the same position on the desk*
*holding it in your hand, or putting it somewhere else in the room or changing the connection type or changing the carrier will all invalidate any meaningful comparison.
**
+3dB is a doubling in received power and +10dB is a 10x increase in received power, likewise -3dB and -10dB are halving and one tenth the power, so it's a significant difference.

OK, here's some evidence for you. HTC One S with Three UK monthly contract sim inserted and Motorola Defy+ with Three UK PAYG sim in. Both phones laid on desk in similar position with nothing to interfere with them.
HTC One S -105dBm (4ASU)
Motorola Defy+ -89dBm (12ASU)
This is pretty much what I've been getting with Network Signal app.
Incidentally, if I put the sim out the One S into the Defy+ then I still get -89dBm as you would expect as both sims use Three UK network. I can't put the PAYG sim into the One S as it's not a micro sim.
Pretty much damning evidence. Does mean the One S loses signal a lot faster when signal is marginal. Doesn't seem to be a great difference when signal is strong between the 2 which is a PITA when trying to show the problem in the Three shop If I go to York later I'll re run the test's and report back. I'm not sure where to go from here. I'll contact HTC support and see if they show any interest. Not overly hopeful of getting any where with Three customer support?

Richy101 said:
Pretty much damning evidence. Does mean the One S loses signal a lot faster when signal is marginal. Doesn't seem to be a great difference when signal is strong between the 2 which is a PITA when trying to show the problem in the Three shop If I go to York later I'll re run the test's and report back. I'm not sure where to go from here. I'll contact HTC support and see if they show any interest. Not overly hopeful of getting any where with Three customer support?
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Thanks for the data point. I'd say it's valid to take them to the Three shop, put them side by side and say look, there's a 16dB difference. (strictly speaking the noise figure of the receiver should also be known, but this is set in the GSM/UMTS specs and should be less than a dB or two difference).
It's been my belief that Nokia and Motorola have the best antenna engineers - all the Nokias I've owned have had great signal reception, despite the fact that the number of base stations was much lower in the late 90s early 2000s.

I cannot compare to old one, I got micro sim and dont have adapter yet (comming from ebay).
I found that I got alot lower signal, thought as I mvoed to micro sim I changed carrier...
Question - how much signal is needed for "OK", and at which point its to weak?

Stiflerlv said:
Question - how much signal is needed for "OK", and at which point its to weak?
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According to OFCOM the mimum signal level is -110dBm (including some fading margin).
At that level you will get very slow data speeds - I consider anything less than -90dBm as pretty low.
I was in the Vodaphone store and they had SIMs in a One X, One S and Wildfire S - all of these were within a few dB of eachother - unfortunately my (roaming) HTC Desire would not connect to Vodaphone.de, so I couldn't get a 4th reference point.
http://stakeholders.ofcom.org.uk/binaries/consultations/3g_rollout/statement/statement.pdf
Currently I'm mostly interested in 3G reception - if this is poor then the phone will spend a lot of time (and battery) looking for signal, loosing contact, toggling back and forth between 2G and 3G etc. However, need to consider that 3G can exist on both 900 and 1800MHz in Europe. If poor antenna design is the culprit then this may only effect one of the bands, meaning that certain users have great signal, whereas others report poor reception.

aza314 said:
According to OFCOM the mimum signal level is -110dBm (including some fading margin).
At that level you will get very slow data speeds - I consider anything less than -90dBm as pretty low.
I was in the Vodaphone store and they had SIMs in a One X, One S and Wildfire S - all of these were within a few dB of eachother - unfortunately my (roaming) HTC Desire would not connect to Vodaphone.de, so I couldn't get a 4th reference point.
http://stakeholders.ofcom.org.uk/binaries/consultations/3g_rollout/statement/statement.pdf
Currently I'm mostly interested in 3G reception - if this is poor then the phone will spend a lot of time (and battery) looking for signal, loosing contact, toggling back and forth between 2G and 3G etc. However, need to consider that 3G can exist on both 900 and 1800MHz in Europe. If poor antenna design is the culprit then this may only effect one of the bands, meaning that certain users have great signal, whereas others report poor reception.
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I mainly need this for calls (not so much data) so till 110 Im still ok?
I often get 100+ :/ Lowest I have seen is 90. Returning the phone hoping its glitch

Stiflerlv said:
I mainly need this for calls (not so much data) so till 110 Im still ok?
I often get 100+ :/ Lowest I have seen is 90. Returning the phone hoping its glitch
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At -110dBm you have very little margin. As long as you aren't walking around the house it should be ok.
But it really depends on the coverage in your area.
NB: the numbers are dBm and negative i.e. a -90dBm signal has a hundred times more power than a -110dBm signal:
10^((-90dBm-(-110dBm))/10) = 100

aza314 said:
At -110dBm you have very little margin. As long as you aren't walking around the house it should be ok.
But it really depends on the coverage in your area.
NB: the numbers are dBm and negative i.e. a -90dBm signal has a hundred times more power than a -110dBm signal:
10^((-90dBm-(-110dBm))/10) = 100
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nice, comparing to my old HTC Tattoo and test simcard I got from carrier, Its around 15-20 dBm better signal for Tattoo...
Im gonna go for warranty I guess

Bump. Like to hear how it compares with other phones on the T-Mobile USA network.
Thanks in advance.

I was just going to create a new thread on this topic until I found this. I would have to say the reception on the one s is considerably worse than other tmobile phones. Today I traveled to an area with generally poor reception and my wife's blackberry bold 9900 had 1 bar of 4g while my one s had an "x" for not signal at all.
When I used my galaxy s2 in the same exact area i used to get at least 2 bars of 4g. It actually worries me that i get zero reception while our other phones were still on 4g, not even edge.
Can this be fixed with a radio software fix or is this a hardware issue? Im pretty pissed because I want to like this phone so much.
What are the experiences of others?

On tmo us, I'd have to say that my signal is the same as it was on my g2x. I'm either in an area with awesome signal (work), or an area with practically no signal (my 100 year old house).
I wouldn't call either situation dramatically different than the last few phones I've had.

Mike,
On one hand, I did some testing with a galaxy s2 and found ours to be comparable usually, but on the other, there are signal drops issues and the days switching so there still is something odd here.
I also hope to have it fixed by a radio update than a hardware one...
I also like this phone much except for its network issues.
Sent from my HTC One S using XDA

Well, HTC wanted my phone back in for investigation. Duly sent it back and it was pretty much turned round within the day. All they have done is load the latest software version which in truth if I'd not packaged it up on Monday could have done myself. I believe Three UK released the update on Monday anyway?
Network connection seems to be slightly better but not by a great deal. I'm not sure what I expected from HTC. If it's hardware there seems to be little knowledge of a problem with them and firmware/software they'll only have the latest versions and hope for the best. I'll just have to see how it goes for the time being. I always have the option to sell it and look for something else.
Not right impressed with HTC's packaging back of phone. I stupidly wrapped it in bubble wrap and put it in a box to dispatch. They simply found a box and chucked it in it so it was free to rattle about all the way home. As a result it has picked up a chip of the coating on it's top edge - unless it was done on the work bench. Certainly wasn't like that when it went as use a Case-Mate Tough cover. Not overly upset about that but should I mention this to HTC? Seems a bit of a poor do

I finally get my HTC One S TODAY! As soon as I do, I will do a comparison. I work for T-Mobile (until my call center closes), so I have a bunch of phones to compare with and test against.

I don't have another (working) phone to compare, but my circumstances make that moot anyway. I have the international One S on AT&T, and since the phone lacks the UMTS 1900 I expected to get lower than usual signal compared to my Desire (A8182, RIP), but hoped that most areas have been upgraded to 850 by now.
Anyway, at work (inside concrete block building with metal structure roof) I am getting between -107 and -88db, (with 10 asu?) depending on where in the building I am. In a larger city I usually get between -30 to -18db, But I do not live or work in a large city.
Even so, so far battery life is way over expectations. currently on 53 hours on a single charge, with 23% battery remaining.

I always get 3/4 bars like my Amaze.

mmceorange said:
I don't have another (working) phone to compare, but my circumstances make that moot anyway. I have the international One S on AT&T, and since the phone lacks the UMTS 1900 I expected to get lower than usual signal compared to my Desire (A8182, RIP), but hoped that most areas have been upgraded to 850 by now.
Anyway, at work (inside concrete block building with metal structure roof) I am getting between -107 and -88db, (with 10 asu?) depending on where in the building I am. In a larger city I usually get between -30 to -18db, But I do not live or work in a large city.
Even so, so far battery life is way over expectations. currently on 53 hours on a single charge, with 23% battery remaining.
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In another thread the box of the tmobile version says it has the 1900 UMTS band. You may be better of with an unlocked tmobile version.

Just tried at a TmoUS store. My HD2 had about -63dB, HOS on display had only -75~-79dB. Disappointed.

motionUS said:
In another thread the box of the tmobile version says it has the 1900 UMTS band. You may be better of with an unlocked tmobile version.
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I am sure you're right, but I like the look and feel of the "MAO" much much more than the gray/blue. If T-mobile (or better yet, Telus) gets the black version I will likely switch.

jjmai said:
Just tried at a TmoUS store. My HD2 had about -63dB, HOS on display had only -75~-79dB. Disappointed.
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That means absolutely nothing. You don't even know if they are connecting to the same cell site.
Sent from my HTC One S using XDA

Signal Strength Issues

Anyone else experiencing a weaker signal with the AT&T One X versus other phones? I've had a Samsung Captivate and Lumia 900 at my work desk over the past ten months and have gotten 3-4 bars on HSPA+. With the One X, I only get one bar, and can't even send/receive text messages.
I'm in the middle of the first floor on a five story building... I would understand not getting a strong signal here, but the fact that my Captivate and Lumia 900 both worked fine in this same location makes me think something's up.

Actually, this phone has better signal than any other phone I've had.

I get a better signal than other phones. My bigger frustration is that it shows full bars when I have no data connection, or zero bars when everything is streaming just fine...

My signal is terrible. There is.no LTE in my area, but my HSPA sucks. I read something that said the antenna is on the bottom left of the phone, and sure.enough, when I hold it there I get 1 bar all the time. When checking battery usage stats I see lots of yellow and gray under Mobile network signal. Surprisingly thoug, my battery life is great, and I don't drop many calls.
Also, my speed tests are carp. Consistently getting 1-4 mbps down.

My phone had HORRIBLE signal. Nothing anywhere. Texts weren't making it out, and if they did it would be in multiples. Forget about MMS. And it got worse to the point where I was dropping every single call. Also was missing some Google Talk events. So I just exchanged it and got a new SIM card this morning.
In my office I was getting 0-1 bars, with the new one I'm at a pretty solid 3 bars. And so far no odd sms/mms/notification problems. I've already flashed the updated ROM, and rooted it. (the last one was flashed/rooted also) Doing a Titanium restore now...

americasteam said:
Actually, this phone has better signal than any other phone I've had.
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Same here. As good as or probably better than my last phone. It could have to do with your area. I am well covered by 4G LTE; perhaps other networks are not as well received by the phone's antennas.
Sent from my HTC One X using XDA

Bad network signal / reception?

I was wondering how everyones experience with network signal is on their S6.
I upgraded from an S4 i9505 to the S6 SM-G920F and I notice that the signal to my network is about -5dBm worse on average. It means the phone isn't as good at keeping signal in a low signal area, and it drops from 4G to 3G much more often that the S4 in the same place.
Maybe my antenna is bad or does anyone else experience this?
Also, don't use the signal bars as a judge of your signal. Samsung has changed them, for example they now show 2 bars 4G when my S4 shows 1 bar. Both phones could have -105dBm and the S6 will show 2 bars but S4 1 bar. It makes it look as if the S6 signal is the same or better when in fact the true signal is worse on the S6.
If you want to see your true dBm signal on the S6, go to the dialer and type *#0011# and choose STACK 1. Your signal is the RSRP.
Screenshots attached of S4 and S6, you can see S6 shows 2 bars with -109dBm and S4 shows 1 bar with -106dBm. S4 has a better signal, so don't believe the bars.

Well, i have a couple of flagship cell phone, including 2 motorolas ( Turbo and X 2nd gen) , i thing it might have differences from region to region , but from my experience , Samsung and LG was the ones with bad reception from past experience, S3 , S4 and S5 they were always with a bar or two lower than other phones, and when motorola has only one bar , sammy was with no signal at all ,long time already .
Well, motorola are the best in signal strength for me, follow by HTC. This time sammy has improved, i guess it's the in-house chips or something. Still no Motorola tough .
I guess we notice those things because we live or work in a region that has weak signal so a little bit more or less makes huge difference.
Here is my screen shot right now. The signal bar seems to be accurate with the signal db.

Thanks for the screenshot Galinha1. That's interesting that you find Samsung has improved this time around. I notice that your screenshot has "Ant RSRP Diff" at a minus number (-26) but I've never seen mine in a minus, you can see mine is at 14. I don't know what Ant RSRP Diff means though, any ideas?
If you find that the S6 signal is better than the S4, maybe I have a faulty device?

mupet0000 said:
I upgraded from an S4 i9505 to the S6 SM-G920F and I notice that the signal to my network is about -5dBm worse on average. It means the phone isn't as good at keeping signal in a low signal area, and it drops from 4G to 3G much more often that the S4 in the same place.
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Click to collapse
I have the exactly same experience. The S6 is more agressive drops to 3G. I'm coming from an HTC One M which in my everyday, according to OpenSignal, has 70-80% 4G connection 24/7, the rest 3G.
My S6 has around 30% 4G, 40% 3G and 30% Edge . Because of the great camera in the S6 I have decided to stick with it for now. Sadly. The great 4G signal in my area actually made me stay on 4G all day on the M8 and disregard wifi usage. On the S6 I've falled back to wifi which on my connection is a lot worse than 4G.
I'm really hoping for this issue to be in the Modem/radio firmware and not in the psycially device.
http://forum.xda-developers.com/galaxy-s6/help/lte-signal-indicator-issues-t3083001

mupet0000 said:
Thanks for the screenshot Galinha1. That's interesting that you find Samsung has improved this time around. I notice that your screenshot has "Ant RSRP Diff" at a minus number (-26) but I've never seen mine in a minus, you can see mine is at 14. I don't know what Ant RSRP Diff means though, any ideas?
If you find that the S6 signal is better than the S4, maybe I have a faulty device?
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Well, i don't know for sure if it's better than S5, it's been around 7 to 8 months i last used my S5 . But i remember that it was a really bad device for signal and call quality. Looks like it's better or is the placebo effect from a shiny new toy . About yours been faulty , well, before last week i would say no for sure, i would assume a firmware or modem software issue, not hardware, but i bought my S6e 2 weeks ago, and i had a lot of drop calls, random reboots , freezes ,and people complaining that they call me and the phone rings once or twice and hung up , and in my end i never saw that attempt of calling, so i tried a new firmware, updated, downgraded it.. still having issues. So i went to my carrier and they didn't even let me finish my complains and handed me a new device. I went back home , thinking that couldn't be hardware issue and this new one would have the same problems. But now it works as it supposed to do . So i guess they might have a lot of faulty devices and software issues for those initial batches . Although i still have some drop calls, and 3g or 4g drops , is not that noticeable like it was before.
I have no idead what ANt RSRP Diff means.
I hope you solve your problem, anything i can help you let me know.

better than my old nexus 6 and m7. plus it holds onto lte much longer

I also have issues with cell reception. I'm on att, and although in areas where signal is strong there are no issues, I have serious issues maintaining a cellular connection when the signal is mediocre. I'm at my wits end with this. The phone seems to run fine, no issues besides the fact that I don't get signal in many areas that my old Nokia lumina 930 had no issue getting reception. Also, ive compared with a few friends iphone 6's and they have signal while my s6 will have nothing. I will be bringing the phone in tomorrow, but if anyone has any other suggestions to fix this besides factory reset, which I've already done, I'd appreciate the help.

I also had problems with cell reception. (no signal, drop calls)
As suggested on several forums I changed the network mode in settings to WCDMA/GSM and this seems to solve the reception problems. This way I am not be able to use 4G but at least I can make calls now XD

hnos said:
I also had problems with cell reception. (no signal, drop calls)
As suggested on several forums I changed the network mode in settings to WCDMA/GSM and this seems to solve the reception problems. This way I am not be able to use 4G but at least I can make calls now XD
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Well looks like it's many more of us than I thought... I am on EE and reception is a joke ( joke anyway on EE) but with S6 reception is much weaker than on any previous phones I've had. What firmware r u running

misiokicio said:
Well looks like it's many more of us than I thought... I am on EE and reception is a joke ( joke anyway on EE) but with S6 reception is much weaker than on any previous phones I've had. What firmware r u running
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I am on stock 5.1.1 G925FXXU2BOFJ
I believe the version is the same for the G920F

Just came back to Verizon after being with T-Mobile for a year. Signal is pretty much the same at the house as I has always been.
click for larger image
Around town it is normally pretty good. At work, it is much better than T-Mobile ever was.

S4 has better 4G signal then S6
This seems to be a problem world wide. Looks like Galaxy S6 is having issues with 4G. I compared it with my old S4 and it's way worse.
Here are the results.
S4- 4G inside the house signal: -109dBm 31asu
S4 - 4G outside the house signal: -102dBm 35asu
S6 - 4G inside the house signal: NO SIGNAL
S6 - 4G outside the house signal: -113dBm 0asu
On my S4 I'm getting a better signal inside the house than what I get on the S6 outside the house.
Does anyone know the reason for this and is there a fix?

4G is calculated differently than a 3G signal
4G: (113 is good, 140 is bad)

question about cell radio signal

Hi guys recently I bought an unlocked g955u1 from best buy and am on Verizon. I've noticed that my cell signal has been reading a bit off despite doing the Verizon software update. My phone is almost always stuck on 3 bars lte according to lte discovery and the range of dBm will average -100 to as low as -108 which realistically should be 1-2 bars not 3. In the past the only time I've really saw inaccurate readings like this is when I've been on gsm carriers. It's not as much as a problem as more of an annoyance as everything works fine. My question is anybody know why it's reading so inaccurate?

The bars are more or less just approximate visualizations of the network strength anyway. It varies from carrier to carrier, as well as phone manufacturer. You're better off sticking with the dB display if you want a truly accurate reading. Imho.

I have a T-Mobile variant and have noticed the my DL and UL speeds are a lot faster than any of the phone I've had in the past. We live out from town and even on the Nexus 6 it shows 3 bars and on the S8+ I get all the bars and the DL speed on the other phones at my house are around 5Mbps and on the S8+ I get 17-20Mbps at the house now. In town it has gone up from 40Mbps to 55Mbps.

My ATT S8+ reception
While I agree that the dBm is what you should be looking at, I have noticed some funky things going on with my ATT S8+ in terms of reception. Using the same SIM card, placing the phone in the exact same place, my S6 Active has a signal strength of -124 dBm /asu 16/"In service" on LTE. The S8+ gets a signal strength of -113 dBm/asu of 0/"Out of service." To me this seems like the S8+ is actually getting better reception than the 6S Active but the phone is out of service. I also tried this same test in another location using a different cell tower. Same results, the S8+ gets better reception...but the phone does not perform as well. In location number 2 I have also notice the S8+ fish for better signal and switch from LTE to HSPA where the signal strength is -99 dBm but the asu is only 7.
Since I live in a area with weak cell coverage the S8+ is driving me nuts...I contacted ATT about it last night, will see what happens.

Also somewhat related:
I'm using a US Unlocked on T-Mobile, and I've noticed my signal dropping out in areas where I previously had great signal on my Pixel XL. My buddy (also on T-Mo) just got an LG G6 and had full signal when mine dropped out.
Anyone else notice a weak signal? If I flash the T-Mo firmware, will that improve my signal? Did I get a bad unit? I hope not as everything else is perfect, screen included.

i notice (with TMobile) that if i am in 4g lte, then move to area with only edge for a few mins, then back to the 4g lte area...my phone doesn't connect back to the best signal
only a reboot let's me reconnect to 4g lte

Cellular strength and throughput

We know how much you like to stream, ahem, "videos", and so cellular data is mega-important. Rate this thread to express how you think the Samsung Galaxy S10e's LTE performs. A higher rating indicates that it's fantastic: throughput is excellent and signal strength is top-notch.
Then, drop a comment if you have anything to add.

I don't go by the bars I go by the dBm's. The way this phone reads dBm's you pretty much show no bars after 117 dBm's. All other phones I've had showed 1 bar at 117. -97 dBm right now but still only have 3 bars. Should have full signal. -97 is pretty good. Anyways, I have an app that shows dBm's in the notification shade and that's what I go by. More importantly is the fact that my unlocked 6t has Volte with TMobile and my S10e doesn't. Sucks.

westside80 said:
I don't go by the bars I go by the dBm's. The way this phone reads dBm's you pretty much show no bars after 117 dBm's. All other phones I've had showed 1 bar at 117. -97 dBm right now but still only have 3 bars. Should have full signal. -97 is pretty good. Anyways, I have an app that shows dBm's in the notification shade and that's what I go by. More importantly is the fact that my unlocked 6t has Volte with TMobile and my S10e doesn't. Sucks.
Click to expand...
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What app do you use to show the dBm's in the notification shade?

KARVEGA79 said:
What app do you use to show the dBm's in the notification shade?
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Signal Notification

The 4G signal is way less good than with my ex Huawei P20. And when it goes from bad reception area to a good reception area, it takes a lot of time to catch the actual signal, sometimes I even need to put on plane mode and then put it off.

Long time to capture signal
Sirguda said:
The 4G signal is way less good than with my ex Huawei P20. And when it goes from bad reception area to a good reception area, it takes a lot of time to catch the actual signal, sometimes I even need to put on plane mode and then put it off.
Click to expand...
Click to collapse
This. Takes a long time (minutes) to capture a signal from one area to another.

Anyone has experience with dual sim use in this phone ?
I barely get connection on the second sim and feels like the first sim has even worse reception when a second sim is inserted.
I got this phone like 2 weeks and very disappointed for cellular strength. As mentioned above, often i have to put on airplane mode to get connected to the internet.

This phone has serious problems with reception. It never really bothered me, I got this phone since launch, (exynos variant, dual sim) but now that I don't have broadband until my new provider sets up their network in the house, I have to rely on my mobile data, and it's amazingly bad. I have 2 sims in the phone, but it doesn't make any difference if I remove one or other. I'm in the UK, it could be Vodafone's fault, however I tried my sim in my previous phone (honor 8) and the signal was better (in dBm ofc) and I also tried my gf's sim in my phone and the signal was worse in my phone. I've spent days searching for solution and it turns out Samsung might went cheap on antennas so there isn't much to do. I've tried some 3rd party apps, tried to force only 4g, also tried 3g, reset network settings, reset access point etc; no luck. I'll transfer my number to an other provider and hope that it will help a little bit but to be fair, I don't think it'll help.