[Q] Occasionally No Cell Phone Signal - Samsung Galaxy Nexus

Randomly I'll be using my phone and I'll lose all cell phone signal (No bars). In addition, occasionally I would lose mobile data connection (it wouldn't show a 3G or anything, but would still have the number of bars) and not be able to send anything (text messages, call people, etc). It was a lot worse on T-Mobile as I would lose it for minutes on end and even have to restart my phone, but on AT&T it's only for a couple of seconds. Do you know if this is a hardware or software issue?

cardboardhome said:
Randomly I'll be using my phone and I'll lose all cell phone signal (No bars). In addition, occasionally I would lose mobile data connection (it wouldn't show a 3G or anything, but would still have the number of bars) and not be able to send anything (text messages, call people, etc). It was a lot worse on T-Mobile as I would lose it for minutes on end and even have to restart my phone, but on AT&T it's only for a couple of seconds. Do you know if this is a hardware or software issue?
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Click to collapse
Same problem with me and no help yet tried many network

Damn, looking to sell my phone, but I'm pretty sure no one will want to buy a phone with this issue. Anybody got a fix?

Related

Orange Desire dropping calls and diverting calls to VM

It seems to have got worse over the last few days. At times I need to make more than one attempt to dial out, the calls drops unexpectidely, and people who ring me sometimes get redirected to Voicemail even though my phone is on with good signal. Have phoned orange multiple times about it, and after diagnosing with them, still at a loss. Anyone else expereincing similar?
stats101 said:
It seems to have got worse over the last few days. At times I need to make more than one attempt to dial out, the calls drops unexpectidely, and people who ring me sometimes get redirected to Voicemail even though my phone is on with good signal. Have phoned orange multiple times about it, and after diagnosing with them, still at a loss. Anyone else expereincing similar?
Click to expand...
Click to collapse
P.s. the phone is not rooted, however very recently I used ADB to install all apps to SD.
oh, the phone has also rebooted a few random times on it's own aswell over the last few days. I think it's all linked.
Have inserted the sim card into another phone. On my desire, while testing, out of 8 incoming calls, 2 went to Voicemail. On my other phone, out of 20 incoming calls, 0 went to voicemail. Seems that it's a fault with the phone and not Orange reception. Going to phone HTC.
Suggested I do a hard reset. I might aswell root my phone and install stock if that is the case.
Any suggestions before I waste a day?
All my previous devices, were on orange, the service was awful, texts coming hours and somtimes days late, calls going str8 to vm, slow data ect, when i got my desire i changed to tmob, and ive never looked back
Sent from my HTC Desire using Tapatalk
Hi
I used to have an X10, that frequently put peoples calls direct to VM in full reception (even with a mate standing next to me calling it went to VM). Now i have the desire and still the same issues, I get random texts telling me I have missed calls when the phone never rang. So I'm not sure if its Orange or Android. I was previously on o2 and didn't have these issue
Update the radio part ?
Sent from my HTC Desire using XDA App
AndroHero said:
All my previous devices, were on orange, the service was awful, texts coming hours and somtimes days late, calls going str8 to vm, slow data ect, when i got my desire i changed to tmob, and ive never looked back
Sent from my HTC Desire using Tapatalk
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Click to collapse
Hate to tell you but orange now own t mobile lol and you can sign up and Rome on each network
Sent from my HTC Desire using XDA App
tidy said:
Hate to tell you but orange now own t mobile lol and you can sign up and Rome on each network
Sent from my HTC Desire using XDA App
Click to expand...
Click to collapse
I know that, but in my area, i only just got gprs with orange, but with t-mobile i get an excellent hsdpa signal, and there cheaper, £5 for a months unlimited internet
Sent from my HTC Desire using Tapatalk
If you are on GPRS (i.e. no 3G coverage at your location), and you are actively using the GPRS connection (including for background data), then it will block incoming calls as if the phone were in a call already. This is a limitation of GPRS*, and it is the same on all UK networks and all phones.
This doesn't happen with 3G/HSDPA, or if you are using Wi-Fi for your data.
I don't know if this is the OP's problem, because it shouldn't cause dropped calls once established (or affect outgoing calls, I think) but it is the effect behind what some of you are describing.
*technically, it doesn't happen with certain GPRS devices (class A?), but there are very few such phones, and there are certain network measures to avoid it, but no network uses them.
so if somebody could write an app that suspends data connection if on 2g and allows data for 3g only, then problem solved?? Obviously only for people who are not really bothered by loss of data sometimes.
arewenotmen said:
If you are on GPRS (i.e. no 3G coverage at your location), and you are actively using the GPRS connection (including for background data), then it will block incoming calls as if the phone were in a call already. This is a limitation of GPRS*, and it is the same on all UK networks and all phones.
This doesn't happen with 3G/HSDPA, or if you are using Wi-Fi for your data.
I don't know if this is the OP's problem, because it shouldn't cause dropped calls once established (or affect outgoing calls, I think) but it is the effect behind what some of you are describing.
*technically, it doesn't happen with certain GPRS devices (class A?), but there are very few such phones, and there are certain network measures to avoid it, but no network uses them.
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Click to collapse
I'm always on GPRS party because there's no 3G/HSDPA at home nor at where I work. So I've hard-set the phone to be GSM only and I've never missed a called so far. Even had calls come in mid facebook usage....
Edit; Tried it again now,
Box standard non-branded desire, Orange Pay As You Go.
a G icon to the left of my reception bars.
I was updating the weather widget both Up and Down arrows where lit up.
Rang from my office phone to my desire..No problems at all.......
my data connection is usually switched off (saves battery), so that isn't the cause,
noternet said:
I'm always on GPRS party because there's no 3G/HSDPA at home nor at where I work. So I've hard-set the phone to be GSM only and I've never missed a called so far. Even had calls come in mid facebook usage....
Edit; Tried it again now,
Box standard non-branded desire, Orange Pay As You Go.
a G icon to the left of my reception bars.
I was updating the weather widget both Up and Down arrows where lit up.
Rang from my office phone to my desire..No problems at all.......
Click to expand...
Click to collapse
Odd. Maybe Orange changed something - I've never tried with them. The network feature is called DTM, but I didn't think anyone had turned it on. I frequently miss calls on O2 because of this.
The Desire also appears to frequently lie and reports the wrong symbol much of the time - so at work with only GPRS (in the middle of nowhere and we have our own cell on our site), mine often says H for HSDPA, and yet the same problem occurs. I suppose it's possible that you're actually on EDGE.
There's a thread about it here: ht tp://androidforums.com/htc-desire/68995-not-receiving-calls-when-browsing-gprs.html
used to have this problem with my x10 on orange until i flashed a new rom and updated the baseband, hasn't dropped a call since....... the wife recently upgraded her phone to desire hd and she is now having the dropping calls/forwarding to vm problem. i reckon its got to be something wrong with the radio orange are using, get it flashed and see if it helps? that is my plan with the missus phone!
I had this happen with my phone on o2 on 3g I notice my signal bar wasn't high though an drops easily. One day i got loads of delayed msgs an calls going straight to vm. I switched my setting to use 2g only an now no problems.
Mok_ojin said:
I had this happen with my phone on o2 on 3g I notice my signal bar wasn't high though an drops easily. One day i got loads of delayed msgs an calls going straight to vm. I switched my setting to use 2g only an now no problems.
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Click to collapse
That's the same work around i have been using. 2G also seems better for battery life, so now I prefer it over 3G.
OP - my partner has been experience EXACTLY the same issues as you with her AMOLED Desire.
To the point where we are possibly going to root it soon, in the hope that a new ROM/radio will resolve the issues. Not sure how viable this is though...

Why data connection lost and why reboot fixed it?

Hi,
Using GNex, stock JB 4.11, Wind Mobile Canada, $40 plan, unlimited data & Canada wide.
Please excuse in advance for the novice questions. I am not yet familiar with Wind Mobile. The customer support is too long and submitting a question to their website required around 5 days to get an answer which is generally irrelevant in my short experience. Hope some expert users here can share some of your knowledge.
Last week, suddenly during a phone conversation, the phone became totally disconnected voice & data. The next morning, the situation didn't improve, so I rebooted the phone (power off / on). Then the phone could connect to voice, but no data (gray icon instead of blue). I stayed with no data for 3 days. During that time, I tried a few reboots, changing various network settings (APN, Network Operators, Data roaming, etc.). None of that worked, then I made another reboot and suddenly everything is back to normal (no roaming and data OK).
Q1. Signal strength variation: what is the cause that makes a signal vary? For the same location, sometimes signal changes from 3 bars to 1 within a few minutes.
Q2. What caused a network to black out temporarily? That's what I got last week during the entire night. The reception icon is a black outline triangle (no voice, no data). I purposely disabled roaming, I admit a network could have some issues, but I have hard time to admit that a disruption could last 12 hours. May be the issue is my phone? It was not rebooted since 7 days.
Q3. How often should I reboot the phone? By reboot, I mean power off/on. I hope this is the correct term. Is it possible that a frequent reboot help the phone to be more responsive? I tend to think so because all the network issues I got were magically fixed by reboot.
Q4. Why would a reboot fix a data connection issue? In my case, a few reboots on day 1 didn't fix. Many network settings changes didn't reconnect data. Then finally another reboot on day 3 fixed data connection.
Thanks in advance for any help.
Welcome to the Nexus and its crap radio. Try turning off 4G, once I did that I never lost signal again. With 4G on I get disconnected from the network randomly throughout the day
SirVilhelm said:
Welcome to the Nexus and its crap radio. Try turning off 4G, once I did that I never lost signal again. With 4G on I get disconnected from the network randomly throughout the day
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Click to collapse
How to turn off 4G? Wind Mobile operates on AWS network 1700/2100 MHz (UMTS band 4), and HSPA+ for data. I believe it is not 4G. On the phone Network Settings, there is only an option "Use only 2G Network" which is not a good option for me. If I enabled "Use only 2G Network" the phone shuts off data and changes to roaming mode.
just set ur nexus on airplane mode for a second..
then disable the airplane mode instantly..
u ll gain ur net working widout reboot... )
dinglic mass
ronakmachhi said:
just set ur nexus on airplane mode for a second..
then disable the airplane mode instantly..
u ll gain ur net working widout reboot... )
Click to expand...
Click to collapse
Oh wow, that's a cool tips.
I hope someone can answers my other questions, I like to understand the "how things works" side.
2LoT said:
Q1. Signal strength variation: what is the cause that makes a signal vary? For the same location, sometimes signal changes from 3 bars to 1 within a few minutes.
Any number of influences. A microwave, air ionization, temperature, humidity, output from the tower not consistant, and plus just the variations of the phone. Going by bars is a bad way to gauge anyways, it could have only dropped signal for a split second but it doesnt update the bars frequently so it would appear to be low signal longer than it could have actually been. Your phone works by line of sight, picture a tight wire from your phone to the tower, anything that crosses in that line reduces signal.
Q2. What caused a network to black out temporarily? That's what I got last week during the entire night. The reception icon is a black outline triangle (no voice, no data). I purposely disabled roaming, I admit a network could have some issues, but I have hard time to admit that a disruption could last 12 hours. May be the issue is my phone? It was not rebooted since 7 days.
That actually is hard to answer, you would need to contact your provider to see if they have a log of an outage at that time before going into whether it was the phone or not.
Q3. How often should I reboot the phone? By reboot, I mean power off/on. I hope this is the correct term. Is it possible that a frequent reboot help the phone to be more responsive? I tend to think so because all the network issues I got were magically fixed by reboot.
Never unless things act funny. A reboot is usually healthy for operating systems (i know many do not). I personally don't intentionally reboot mine, it usually happens because I'm screwing with clock speeds
Q4. Why would a reboot fix a data connection issue? In my case, a few reboots on day 1 didn't fix. Many network settings changes didn't reconnect data. Then finally another reboot on day 3 fixed data connection.
Like any software there are chance of a 'glitch' where the modem and the driver have issues communicating. Toggling airplane mode off and then back on re-initializes this and in most cases fixes the communication problem. Rebooting will have the same effect. I would only worry if you are needing to do this often.
Click to expand...
Click to collapse
Hope this helps a little.
I would also contact your provider. They may have an issue with the tower you are connecting to.
Perfectly understood, appreciated very much your detailed answers. Can you please clarify below?
Darunion said:
Any number of influences. A microwave, air ionization, temperature, humidity, output from the tower not consistant, and plus just the variations of the phone. Going by bars is a bad way to gauge anyways, it could have only dropped signal for a split second but it doesnt update the bars frequently so it would appear to be low signal longer than it could have actually been. Your phone works by line of sight, picture a tight wire from your phone to the tower, anything that crosses in that line reduces signal.
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Click to collapse
Makes sense. Indeed, when I said "For the same location, sometimes signal changes from 3 bars to 1 within a few minutes". Actually, I mean a room and I was walking/moving so may be the orientation of the phone explained why the reception was inconstant.
Regarding your answer above output from the tower not consistant. Is it possible that the tower reduces its signal strength when the number of users increases? Similar to users sharing a finite band width?
Yes, even orientation of the phone can have an affect, depends how the antenna is set up inside the phone, i havent seen it so i have no answer for that.
ya, as you move around you could have been what blocked the direct sight of the tower, signal passes through nonmetal objects but each time it does, it loses strength depending what it passes through
@OP I also have the same problem, I am also with Wind and had to do force reboot to make it reboot.
Sent from my Galaxy Nexus using xda app-developers app
Flash the UGLC1 radio to your nexus. I'm with Wind as well and that radio gets me good service!

[Q] Slow/buggy/poor data connection and reception

I was originally a Verizon user so I'm not used to this kind of weak connection.
I had my phone replaced already due to another issue a few weeks ago
so I don't want to get another replacement because of this. it is really annoying!
Instead I will ask here and see if anyone could help !
**This has nothing to do with WiFi (because WiFi works great!)**
**And nothing to do with calls because call quality and connection showed no problems**
**Not exactly sure this problem started, just started getting annoyed with it recently**
\- What my phone is doing (when I'm at home) -/
1. Slow transition from WiFi connection
- When I turn Wifi off, I don't get an immediate data reception. Instead it takes about 10 seconds and then I barely start to get 3g..... not lte .... (It's not like this in every place)
2. Not much LTE
- It happens really rarely, most of the time at home the connection is on 3g
3. Lose data connection even while in use
- It's just sometimes unstable. When I'm browsing the web (while in 3g) it would sometimes go down to no bars at all and lose internet connectivity, then the 3g and I have to wait again until it comes back.
- Data roaming automatically turns on saying that I lost connection -_-
4. 3g is sometimes really unresponsive
- Just like when it is when turning off Wifi
- 3g would stay idle for sometime, even when I open apps that require internet
- Sometimes the 3g just disappears and decides not to comeback for a while
5. Bars up and down (drains battery?)
- I see this too often, like in every hour. While in 3g, the bars get suddenly full, then in an instant it drops to 1, then to 2. Then sometimes to no bars at all.
* in LTE it never gets like this, just constantly 1 bar
6. Maybe it's where I live?
- Possibly, but it's quite an urban and Sprint should have no problem covering this area in my opinion
- Verizon wasn't like this (although not perfect)
7. This is annoying
-Because it is draining the battery -_-
-Because my sister's iPhone 6 performs better (always has 2~3 bars) & my brother's S6 (though relatively weaker than her's) does not seem to lose connection compared mine at home (We're all Sprint users)
\- What I've done to confront this problem -/
1) Called Sprint, but didn't help at all. They told me to just take it to the store and have them take a look -__- Agent hardly knew anything...
2) Flashed Stock ROM and hard reset the phone (so annoying since you have to set things up again)
3) Made sure I set mobile data Network Mode to 'AUTOMATIC'
4) Made sure I have the latest Software version and have the PRL and Profile updated
But still no result at this point.
***Could this be a hardware issue? Or a software issue that is fixable?***
Can anyone give me some advice on how to fix this?
I mean it's just that the data reception is too weak an unreliable to think this is okay.
Right now my phone is pretty empty, barely any apps because of the reset.
I really don't want to believe it's due to a faulty hardware!
P.S. Possibly symptom?
The first day I got this phone as a replacement out of the store, I was unable to connect to the internet using data, even though calling was working.
What it was doing was, constantly switching from 3g - lte - inactive 3g - nothing - 3g - so on in a 20 second cycle.
By the end of that day towards midnight it was connecting to the internet.
Welcome to Sprint -_____- my GF has 4G LTE on Verizon where I live and I don't even have 3G, I roam on Verizon actually lol. Sprint literally has ZERO coverage while Verizon has LTE.. It's just Sprint dude lol.

H815 UK not receiving or being able to make phone calls after root.

After rooting my H815 (Vodafone UK) throughout most of the day I can't receive or make phone calls, the signal also at times during the day will completely go and I have to restart to get the signal back (which sometimes works) However I can text and use the Internet.
The main problem I've noticed is when I call someone it automatically goes to 3G and works but if it remains on 4G it will say dialing then completely loose signal then when I hang up the signal comes back.
Anyone know a solution to this?

Question Phone Suddenly on Emergency Calls Only Until I Restarted It

When I woke up today, I saw that my phone was on No Service and it wasn't just flipping between full bars and no service for a second like it too often does (including dropping calls a couple of times). I tried to fix it by turning Airplane Mode on and back off, but it did nothing. I went to try to manually choose a tower to connect to mostly to see if the T-mobile tower near me was working or not, and there instead of a tower name it said "Emergency Calls Only". It did let me pick from the list and a disappearing pop-up said it connected, but it never changed to signal and stayed on Emergency Calls Only. So, I restarted my phone. Once it was back on, I had signal, but strangely I also got a Gmail notification about an e-mail that had arrived an hour prior, so I guess even my WiFi wasn't working! Bluetooth did connect fine to my Apollo Neuro anti-anxiety device, but the app was messed up showing it at 100% strength on two different settings instead of the strength they were saved at (and were sent to the device at), which was weird. Everything was fixed after the phone restart.
Anyone else had this happen? The signal issues on this phone are really starting to annoy me! Flipping to no service for a second too often, not connecting manually to any other tower (my plan includes unlimited roaming for talk and data) [I'm not sure if auto roaming works since I haven't been where it would be needed], dropping a couple of calls, not sending texts at times, Chat texting dots turning off often (usually fixed by going into Airplane Mode and back), and now this! I love the phone, but they need to fix it whether it is Samsung or T-mobile!
i thought i was the only one. suddenly no service to any calls but data intact. only way to fix is by cycle flight mode.
jemfalor said:
i thought i was the only one. suddenly no service to any calls but data intact. only way to fix is by cycle flight mode.
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Click to collapse
That sucks. They really need to fix this basic function of this phone!
I've had that issue when getting in areas where coverage is spotty, but never been able to see it go into Roaming..........just "emergency calls only".
ycats said:
I've had that issue when getting in areas where coverage is spotty, but never been able to see it go into Roaming..........just "emergency calls only".
Click to expand...
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It seems that is the issue, that the phone won't roam. That is a mega problem.
My phone was just sitting on the wireless charger all night, and I get full bars (occasionally minus one) here at home, so .

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