[Q] Signal problem in Samsung Galaxy S 2 Plus - Samsung Galaxy S II Plus

i have bought brandnew Galaxy S2 Plus two days ago and came to know that its showing very weak signals..full signals are shown in one position and the moment its position is changed it shows one bar then no bar and again one bar and so on.... in an open area it shows full signals and never drops a single bar but the moment i make a call or sms it says service is unavailabe,sim is not registered...i hve no network coverage issues in my area .... now im confused if it has software problem or hardware problem...plz help

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hey
i just got my nexus s last night....i am experiencing a few concerns....i live in india...when i unlock the phone the edge symbol ,my signal strength and my battery are in green and everything is working properly..but when i lock the phone the edge symbol disappears and the color of the signal strength turns to grey but my battery still remains on green...so when i unlock the phone then it takes upto a minute to get my edge back and hence i cannot receive messages from whatsapp on time...what is the solution to this problem
and why do the colors of the edge and signal strength change to grey??
somebody please help me....im not able to chat unless i keep the phone unlocked the whole time which drains a lot of battery Crying Crying Crying Crying Crying Crying
also how do i activate my accelerometer in my nexus s?

[Q] no signal

Hi guys, recently my phone came back from having the screen replaced as it had been cracked in the past. Now the signal strength on the phone has never reached more than 3 bars. if i am lucky i get 1 bar but most of the time there is no signal on the phone. So i cannot receive or make any calls when i need to. Does anyone have any ideas as to what the problem may be??? :-/

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.
Click to expand...
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?
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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)

Phone signal showing zero bars

I just got a new xperia z5 and I'm using it on att but my phone signal is always showing zero bars.
I get data but incoming calls sometimes don't go through or go through after 2-3 rings.
The signal shows bars when I make outgoing calls but then disappears quickly thereafter. I thought it was maybe WiFi calling enabled but I don't even see that option anywhere in my phone and this happens when WiFi is off too.
This is a very strange phenomenon and can't find any answers anywhere. There is also a small circle with a line going through it on the notification bar, not sure what that is.
Does anybody know what's wrong ?
Small circle with line indicates "do not disturb" mode is active. Its under sound or notification settings, can't remember which. For signal status, check APN. Also, is your IMEI for this phone the Z5 one or an old AT&T phone? If AT&T has your IMEI for the Z5 it will register on their system as an old phone since they don't have Z5 in portfolio. I had to give them an old IMEI off a LTE device from AT&T because it was showing as a P series phone in the system and I was only getting 3G, no LTE.
Just noticed the small circle was for sounds. Thanks
I am getting LTE which is weird because it just not showing any bars on top but the lte works.
No one else has issues with their signal bar on their xperia z5?
This is really strange and can't figure out what's wrong with it.
No issues with the bars per say but definitely issues toggling networks, especially with 3G prefered mode. When 3G prefered selected I only get mobile data when H+ icon shows next to the bars. 3G, 2G and H don't work! The phone sometime takes up to 10-30 seconds to toggle to H+ and be connected. This drives me nuts! Do you guys experience this as well? Today I got no signal at all (no bars, nothing) for two hours.
Stamina is off and I have proper signal.
SFR France btw.
Try to toggle LTE off.
This sounds like an issue I had with a data only SIM in Japan with my S6, except no 2G network was the cause I think, not sure what would cause it on AT&T.
Sent from my SM-T710 using Tapatalk
It's strange because I show full bars when I make an outgoing call or right before someone calls me, all the bars fill up. But it takes 2-3 rings on their side for it to ring on my phone.
And after the call it goes back to zero bars. But I still have the lte sign there.
Is there a way to update the gsm radio?
Same issue here (Z5 on ATT). I get one bar consistently when the phone is idle with the bars filling up when making calls, sending texts, etc., but I do get full LTE speeds and haven't noticed any other problems... I did look at my account, and the Z5 does show up as an "unknown device".
I tried changing APNs from "Attnextgenphone" to just "ATT Phone" but it didn't make a difference...
Sent from my E6653 using Tapatalk
I am glad I am not the only one with this issue. At home I get one bar with wifi off and with wifi connected I get zero bars until a call is made or received.
I am located in NYC and have the 32.0.A.6.152 rom and the baseband is 8994-FAAAANAZQ-00029-16
bigneeker said:
I am glad I am not the only one with this issue. At home I get one bar with wifi off and with wifi connected I get zero bars until a call is made or received.
I am located in NYC and have the 32.0.A.6.152 rom and the baseband is 8994-FAAAANAZQ-00029-16
Click to expand...
Click to collapse
Exactly the same here (FW and baseband). I'm in CO and I do sometimes get full bars outdoors, but it happens randomly... It's almost for sure a problem on ATTs end considering that they don't even recognize the device on their website.
Sent from my E6653 using Tapatalk
Is there a newer baseband that we can upgrade to that will fix this signal issue?
Or de we have to wait till the marshmallow upgrade comes out.
bigneeker said:
I am glad I am not the only one with this issue. At home I get one bar with wifi off and with wifi connected I get zero bars until a call is made or received.
I am located in NYC and have the 32.0.A.6.152 rom and the baseband is 8994-FAAAANAZQ-00029-16
Click to expand...
Click to collapse
Hi, it's a high probability that you are seeing bar fluctuations as you suggest because your phone is actually changing bands during this time, because the cell tower pushing your call etc doesn't have the signal strength to push LTE.
As for the OP if his LTE/4G shows higher bars as soon as he is using the internet this is a different issue, and strange maybe faulty hardware.
I would recommend you all go somewhere where you know there is good coverage, even with another phone if possible and see if you still have the same issue.
---------- Post added at 07:21 AM ---------- Previous post was at 07:18 AM ----------
bigneeker said:
Is there a newer baseband that we can upgrade to that will fix this signal issue?
Or de we have to wait till the marshmallow upgrade comes out.
Click to expand...
Click to collapse
Mate I am not sure the phone suffers from signal issues, I have had most of the Z series phones, all have the exact same signal strengths for me at various locations, and the phone has better coverage than other manufacturers as well, when I compare to other friends in super low coverage areas
Hey @bigneeker,
Just wondering if the MM update has fixed your signal issue.
For me it hasn't, but if it did for you then it might be a region issue (mine was Singapore, but I flashed the MM update for Germany).
Cheers,
-4Strings
It didnt for me
I noticed it too. Sony xperia z5. I use the quick LTE toggle and when LTE is on, all my bars are greyed out, but when LTE is off and I'm on H+ and 3G then all my bars are lit up.
xslikk7 said:
I noticed it too. Sony xperia z5. I use the quick LTE toggle and when LTE is on, all my bars are greyed out, but when LTE is off and I'm on H+ and 3G then all my bars are lit up.
Click to expand...
Click to collapse
Same here. Also, whenever I lose signal or inexplicably switch to Edge, toggling the LTE switch off and on seems to fix the issue.
I compared the specs of the Z5 and the specific bands/frequencies AT&T uses, and the problem might be the frequency that they use on Band 12... I don't know.
I don't know about European carriers, but since T-Mobile uses a different band for its LTE, then that might explain why this issue is not that well-covered in the US (though I can't confirm that).
Cheers,
-4
Sent from my E6653 using Tapatalk
I'm in Ireland and my signal suddenly went from H+ to Edge then no service. I haven't came across another person with the same issue, my signal goes between H+ and no service most of the time is no service. Tried 5 different firmware and custom rom nothing changed

Nexus 5 stuck on EDGE , LTE is On but no connection

Hello
I bought my Nexus 5 about a year ago , and everything was fine , suddenly i've been facing some problems with network . The problem is i have EDGE with a small x next to meaning that i have no internet , when i change it to H+ it works but it's so slow "1mbps or 40~100Kb in download" sometimes i get LTE with that small x next to it and no connection keeps loading , and sometimes there's no "x" but still with no connection.
So i thought that the problem is with 3g and 4g wires "black and white " , so i changed them with my friend's wires "he has a nexus 5 too" but it didn't fix the problem . So i went back to stock rom and nothing happened
-Tried different modems nothing happened
-Cleaned the whole motherboard with some cleaning tools nothing happened
-Checked the contacts below the "speaker" cover
-Changed my firend's back cover
-changed the sim , tried my sim in another phone and it was working fine
-changed the network operator
-chcked the APN
-did some secret codes to put it on LTE only and i get no network .
I did everything but i still have this problem
I was reading something in some forums and they said that i have change the network IC ! But i'm not sure about it , i mean if i have "no service" problem i haveto change the IC , but i could make calls and H+ is slow but no EDGE or LTE .
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