Database Users

Loss of signal when sending SMS/MMS?

Everytime I send an sms/mms my phone signal drops completely. Sometimes the messages send, sometimes they don't. I even tested this a couple times sending myself a text....anyone else experiencing this?
And yes I have tried restarting.
Sent from my T-Mobile G2 using XDA App

I've experienced this too, but only when I already have a pretty low signal. It never happens when I have a good signal (not based on the notification bar, actually reading the dBm).

ive had this issue with every tmobile phone i have ever owned. even my nokia n900 on tmobiles network had this issue.

lowpeezy said:
Everytime I send an sms/mms my phone signal drops completely. Sometimes the messages send, sometimes they don't. I even tested this a couple times sending myself a text....anyone else experiencing this?
And yes I have tried restarting.
Sent from my T-Mobile G2 using XDA App
Click to expand...
Click to collapse
Have you tried switching to 2g?
Sent from my T-Mobile G2 using XDA App

Whenever I'm in a car or a bus, I tend to lose signal or even the data connection. It shows the bars but no data activity, and or loses the five bars and is empty. Ill go in phone status and check the phone signals are all 0. This just started happening, I'm going to give tmobile a call.
Sent from my T-Mobile G2 using XDA App

this may sound dumb, but could it be the way you are holding the phone? much like my nexus one, i find that when i hold the phone landscape my right hand willc over up the bottom of the phone where the antenna is and my signal drops. depending on how weak it was to start, sometimes i kill my signal. my G2 isnt as bad as my nexus was but it still happens sometimes ive noticed.

Turbo Brian said:
this may sound dumb, but could it be the way you are holding the phone? much like my nexus one, i find that when i hold the phone landscape my right hand willc over up the bottom of the phone where the antenna is and my signal drops. depending on how weak it was to start, sometimes i kill my signal. my G2 isnt as bad as my nexus was but it still happens sometimes ive noticed.
Click to expand...
Click to collapse
It is not an iPhone!
No but it happens anyway I hold it. Landscape or vertical, it loses signal even when I'm at my desk in class and not moving it will drop signal and then take abour 5-10secs to get the signal again.
And also I realized that when I have 1 bar, it will lose signal and then get 5 bars. I'm thinking it doesn't do good at holding signal and transferring from tower to tower.

Lol. Its not the way I'm holding the phone. I'll have full bars, then soon as I click send, I have none....then it goes from E to H.
Sent from my T-Mobile G2 using XDA App

Only when roaming or on EDGE
I have only had this happen while roaming or on an Edge network. We are very fortunate in Lubbock to have HSPA and GPRS, only a couple of towers are pushing edge in this area. Usually once I return to a G or H, SMS/MMS goes through with no problems... May have something to do with the Radio Issue, the alleged ota will fix...

[Q] my G2 loses service, restart brings it back

hey everyone
so my G2, which I absolutely love, has been having a problem lately. in the first week it happened maybe once and i didn't think much of it, but since Friday it's happened like 8 times now. I'll be sitting there with my G2 and all the sudden I have no service whatsoever. Just an x on the signal strength indicator. 1 or 2 times it has come back after a minute or two, but the other times I had to turn the phone off and back on. the weird part is I'm not moving at all, totally sitting still, but when it comes back on I have FULL bars with HSPA+. so it's not like I walked into an area that didn't get good reception.
any idea what's going on? i looked around but didn't see other people having this issue. any ideas?
thanks

alright well at least i'm not alone. i remember that rumored OTA update was supposed to have some radio bugfixes. maybe when the real OTA update comes it will have something to fix this. i hope so.

I have been trying to diagnose this issue on my phone too.
By any chance, do either of you have your BT on at the time?

Happens to mine as described and I have never turned on bluetooth. However this would also happen to my G1 so I think its a network thing personally.

Yeah, it definitely is. I have 2 areas that it happens in, both are while I am in my car and I have BT on in my car. When I ran it without BT, did not happen.
I have found that when I am in those area's, turning off 3G stops it entirely, even with BT on, so when in my car, I set edge and still use my BT and problem is gone.
I hope this is temporary and an OTA can fix the handoff from 3G to Edge and back better so that I can stop this, but this works well enough.

Mine has done that also, maybe once a week for the past 3 weeks.
Judging by the other problems you can have Id say this one isnt that bad. Especially if it only happens once a week haha. This is the only problem I have with my phone.

no bluetooth...
no no bluetooth on, i never do actually... but also my G1 never did this, which makes me think it's NOT a network thing, but I don't know.
also I'm sure this is just coincidence but it almost always happens when my girlfriend is nearby with her T-Mobile Blackberry Curve. i know it wouldn't make any sense, but she's sitting there on the same network with full service and all the sudden my G2 loses service completely, right next to her... although it's not always while she's there, but like the majority of the times she's been there.

I just started another post to check on something, I have widgets that show me when I am connected to 3G and when I am connected to H. I have noticed that the phone is activity managing that connection. In other word, it is in 3G until data is transfered then it goes to H. I wonder if when we are in areas of "questionable" HSDPA signal if this hand off is causing the problems.
I have seen a lot of op's say that there problems come right after some data activity?
Just a guess a this point

i saw someone mention in another post that it happens after/during a text message alot of times. i haven't noticed that myself, but that's something to think about too.

robinsmy1 said:
I just started another post to check on something, I have widgets that show me when I am connected to 3G and when I am connected to H. I have noticed that the phone is activity managing that connection. In other word, it is in 3G until data is transfered then it goes to H. I wonder if when we are in areas of "questionable" HSDPA signal if this hand off is causing the problems.
I have seen a lot of op's say that there problems come right after some data activity?
Just a guess a this point
Click to expand...
Click to collapse
What I've heard is that the phone will stay in 3G mode until you begin using data in order to save battery life. Makes sense to me.

Data dissappears during phone calls? Realization time

Has it always been like this? Flashed a few roms and radios. But I think I never really thought about it or noticed it until now and it's really bugging me. I've read a few topics about 3g and 4g being "parallel" to our voice calls so we can't have both? I don't quite understand any of it.
Can someone tell me it's just my phone so I can try to solve the problem, or reassure me that we can't have both at the same time so I can sleep better tonight? lol
Thanks for any and all help!
Edit: Sorry meant to post this in the question thread.

Balut20 said:
Has it always been like this? Flashed a few roms and radios. But I think I never really thought about it or noticed it until now and it's really bugging me. I've read a few topics about 3g and 4g being "parallel" to our voice calls so we can't have both? I don't quite understand any of it.
Can someone tell me it's just my phone so I can try to solve the problem, or reassure me that we can't have both at the same time so I can sleep better tonight? lol
Thanks for any and all help!
Click to expand...
Click to collapse
ALL GSM phones that are connected to HSPA or greater should be able to talk and surf at the same time. I do it frequently personally. Do you know if you drop to EDGE/GRPS when you get on a phone call?

I am also having this issue but its strange that the guy posting above me does not face this issue - may be it is a hardware issue like screen and emmc since I already tried different roms and radios?. As soon as I am in a call I am disconnected from network data. I noticed only recently when I was in a hotel room working on my laptop (tethered phone to provide internet) and just when I joined a conference call, I lost internet. It was so embarrassing I couldnt curse tmobile and htc enough. The iphone ad about talking and surfing at the same time never made sense to me before this incidence.

my phone does this too, but its on and off. Sometimes it does, others it doesnt. I really have no idea what could cause it.

Let me shed some light on this....if you are on H will less then 2 bars and theres an E with 3 bars or more and u get a call the phone will switch to E but once you hang up then its back on H. But if H has 3 bars or more when a call is received then I will stay on the H network and allow talk and data at the same time. Theres no hard ware issues trust me. Hspa is preferred but if there is a stronger signal then the phone switches. I hope that makes sense. You can not do data and talk together on E but you can on H.
Sent from my HTC Glacier using XDA App

Or, to put it in other words: when the phone is in a call, it'll hop to the "best sounding" base station, and if it would happen to be the old GSM/GPRS/EDGE base station - the data will drop. The missing bit is: once it drops - it isn't re-negotiated during the call, only after it. Thus, if the phone hops to EDGE base station even for a second during the call - you won't have data from this point and till the end of the call.
Perfectly normal behavior.

PureH2O said:
Let me shed some light on this....if you are on H will less then 2 bars and theres an E with 3 bars or more and u get a call the phone will switch to E but once you hang up then its back on H. But if H has 3 bars or more when a call is received then I will stay on the H network and allow talk and data at the same time. Theres no hard ware issues trust me. Hspa is preferred but if there is a stronger signal then the phone switches. I hope that makes sense. You can not do data and talk together on E but you can on H.
Sent from my HTC Glacier using XDA App
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Click to collapse
This is definitely not the case. I have tried multiple times with different signal strengths but it drops completely every time. I just did another test, I was on H at 3.47mbps with all full bars and as soon as i placed a call to my friend, the data dropped completely.

chem.manish said:
This is definitely not the case. I have tried multiple times with different signal strengths but it drops completely every time. I just did another test, I was on H at 3.47mbps with all full bars and as soon as i placed a call to my friend, the data dropped completely.
Click to expand...
Click to collapse
It's not about the bars you see, but the signal strength (and not only) your phone sees - which is way more complicated than just bars. Read my post above.
And it's not an opinion either, it's a fact. This is how cellular handoff/handover works. http://en.wikipedia.org/wiki/Vertical_handover

Thanks for the replies and insight everyone. Now I know a little bit more about how that handover works heh.
In my case, most calls were made from my office building. Yesterday, when I posted, I had the newest radio and data would drop immediately as soon as the person answers my call (not a steady drop from 4g-3g-Edge, icon just disappears completely). At best, I was able to download a few apps during a call (which was downloading before the call was made) but as soon my screen locked and turned off - the data was gone on wake and wouldn't turn back on until after the call was finished.
Went through 4 different ROMS yesterday with about the same results but I have recently reflashed RoyalGinger again along with the stock radio thereafter and it seems to be holding during calls, even on my ride to work this morning. I know this is against what most people have said in this thread but maybe I just messed something up on my phone with the new radio? Guess I'll stick to this radio for now. Thanks again everybody.

Radio is the one responsible for determining the best possible connection, and flashing new radio might change things.
I'm in a good 3G/H coverage zone, with new radio, and just tested - the data remained on during the call in any conditions, screen off, screen on, wifi toggling - still worked.

Jack_R1 said:
Radio is the one responsible for determining the best possible connection, and flashing new radio might change things.
I'm in a good 3G/H coverage zone, with new radio, and just tested - the data remained on during the call in any conditions, screen off, screen on, wifi toggling - still worked.
Click to expand...
Click to collapse
When I'm on 4g and turn the screen off the data turns off, normally after an extended period, which its good for battery.
Sent from my HTC Glacier

This has happened to me since I had my blackberry 9700. My experience has been that it loses all data (H/3G/E), even in good H/3G signal area and won't reconnect until I end the call. However the data loss only occurs while on a call. While not on a call, just surfing the net or using data any other way does not cause lost data connection nor a drop from H/3G to Edge. I saw somewhere on these forums that switching to H/3G only will prevent this from happening. I've tried this and it seemed to help, but I haven't been checking on every call.
Sent from my HTC Glacier using XDA App

[Q] Signal bar goes from full to nothing randomly

Ever since I got a replacement phone Ive had this issue- while on the Sprint network my signal will randomly go from full to nothing at all. Yet when I use roam control to go into roaming, the signal always stays at full strength
The other thing I noticed is that when I dial into the 3282 menu, someone elses username is there instead of mine. When I run connectbot and use getprop, no MSL # is there either
Anyone know whats going on with the phone and if this can be fixed?

getprop ril.MSL
It is filtered from just getprop.
My signal has always done that.
Updated profile may fix the user name?
Sent from my SPH-D700 using Tapatalk

Thanks that command did the trick to get the msl- I was able to go in and manually change the username now.
Is there any settings in the data menu to improve the signal? Its almost like its jumping back and forth between a good and bad tower?

Not that I know of. That is what I suspect is the case with me as I have about 3 towers that are surrounding me from various sides and I think it is hopping between them... not sure there is anything to do for it but I haven't really seen any ill effects from it.
Sent from my SPH-D700 using Tapatalk

The weird thing is it never used to do this before when I first got the phone. When I was in the same areas the signal bar was always full and would never drop. I wonder if its a tower issue or something they changed with an update.
Sometimes when people call me they say it goes straight to voicemail though which worries me

Could be the modem. Some people think el30 is not as good as ei22 or ec05. Maybe try some others.
For calls calls going to vm, that can happen if you are using data in a 1x area. Also can happen if you have accidentally switched on ddtm in call settings.
Sent from my SPH-D700 using Tapatalk

This is going to be plain and a tad bit retarded but a solution is WiFi, as far 3G and 4G mine has always done this but i can testify that in my house i used to get ****ty service like 0 to 1 bar when i was on EC05 i switched EL30 now to FB15 and say much more improvement more consistent to 3-4 bars.
PRL updates could help if you roam around there. newest as of today is 60685

I've been having this problem too for about two months now. But as you said roaming works fine so I just assume it's a sprint tower issue and force roam whenever I'm on wifi.

I have had this issue for a year or so... started a while after I first rooted.
You can hold my epic in one hand, my wife's epic in the other... her bars stay steady, maybe fluctuate between 2 or 3 bars occasionally... mine randomly and erratically jump from 2 or 3 to nothing, stay there for 30 seconds or so... and jump back up.
While its annoying and distracting, I've never had a problem with dropping calls or losing data. I even took the phone apart to make sure the antenna had not come loose. Problem persisted over several roms and several modem Odin flashes, just won't go away!

Mine does the same, it'll have full bars, drop down to nothing, but my 3g/4g still work fine (off wifi)... i just ignore the signal bars because most of the time my data still works, albeit a tad slow.

[Q] Nexus 4 Signal Strength... Antenna Firmware Radio Problem? anyone else?

I have Straight Talk AT&T, and so far my experience has been mixed. Sometimes I get full reception and generally awesome speeds (coming from Sprint's slow ass network), other times I get absolutely no service, sometimes it randomly jumps into roaming and i can't get data.. and it stays 'stuck' in roaming mode.. I have to turn airplane mode on/off to fix it.
This all happens without my leaving my desk.
Apparently it isn't limited to Straight Talk AT&T though http://forum.xda-developers.com/showthread.php?t=2038963 http://forum.xda-developers.com/showthread.php?t=2037780
What's going on.. Am I part of a small group, or is this a larger issue..
OpenSignal Screenshots..
http://i.imgur.com/Zwohw.jpg
http://i.imgur.com/XxBBF.jpg
Notice the jump in bars between the two screenshots

same. hopefully they fix all these issues with a new radio. and also losing data while on a phone call!!!

Weird...on mine the bars go all the way down but when i do internet test i still get high connection. Also my internet works fine. Usually bars go down when i hold phone from top right.
Sent from my Nexus 4 using xda app-developers app

sometimes I lose all bars and am still talking on the phone. so strength meter is off and doesn't mean much at this point.

Mine goes all over the place with ST ATT just sitting it on a table

well hows att reception in your area in general? mines pretty steady as far as 1 bar give or take. but theres sometimes I will sit at zero bars all together and still have service. I wouldn't worry about it too much as long as your able to make and receive phone calls etc

daddioj said:
same. hopefully they fix all these issues with a new radio. and also losing data while on a phone call!!!
Click to expand...
Click to collapse
So it's been determined that it's not a hardware problem?

well its still early to tell. the phone is still very new so they have plenty of time to tweak the radio and fix bugs. lets hope its not some kind of weak radio hardware issue.

I've been having these as well. Quite annoying, but the data connection still pulls data and works. I've requested an RMA device and should be here tomorrow. Going to test with that, if it's the same then I'd keep this one I already have. Sometimes even if I have full service 5 bars, data will not work. The H will still be on stop of the signal bars, but it won't download/update any data, if I'm using any apps, it'll just hang.

xdviper said:
I've been having these as well. Quite annoying, but the data connection still pulls data and works. I've requested an RMA device and should be here tomorrow. Going to test with that, if it's the same then I'd keep this one I already have. Sometimes even if I have full service 5 bars, data will not work. The H will still be on stop of the signal bars, but it won't download/update any data, if I'm using any apps, it'll just hang.
Click to expand...
Click to collapse
What is the process for going about getting a replacement... and keep us posted on whether or not you see any changes..

let us know If the replacement is better. which I don't think so. but if your on original 4.2 with older baseband stay there. don't update and play with the data then. see if its good. then when satisfied update and see if the same problems arise then you know its software bugs

daddioj said:
let us know If the replacement is better. which I don't think so. but if your on original 4.2 with older baseband stay there. don't update and play with the data then. see if its good. then when satisfied update and see if the same problems arise then you know its software bugs
Click to expand...
Click to collapse
Will do, I'll keep you guys updated.

xdviper said:
I've been having these as well. Quite annoying, but the data connection still pulls data and works. I've requested an RMA device and should be here tomorrow. Going to test with that, if it's the same then I'd keep this one I already have. Sometimes even if I have full service 5 bars, data will not work. The H will still be on stop of the signal bars, but it won't download/update any data, if I'm using any apps, it'll just hang.
Click to expand...
Click to collapse
My N4 pretty much does the exact same thing. Actually, I'm on my replacement phone and it does the same thing as my first one.

which makes me believe its a software bug. or hardware fault. i'm having some faith in software lol :good:

I sure hope it's a software issue, because my connection really sucks. It drops out constantly, but never dropped out a single time on my Backflip during normal hours (only 2 times around midnight during server maintenance or something)

Do you think I should try T-Mobile and see if my issues are resolved..

I just discovered this phone info settings, via *#*#464 or whatever it was.. Is there a particular setting it should be on, not WCDMA Preferred?

I'm having the same problem: the signal strength is very erratic. I'm on Rogers in Canada, which is same frequencies as AT&T.
I've never seen such erratic signal strength before.
On the other hand, though I haven't had it very long and haven't put it through its paces, I haven't noticed any significant signal issues, like dropped calls. So, I don't want to jump to any conclusions that what I'm observing is actually a problem.
Does anyone know of an app that tests the quality of my data connection? I know everyone uses speedtest.net but that just tests burst speed and I'd like something that will test the consistency of my connection too.

same problem
I'm having the same difficulty. Signal can be at 3 bars then all of a sudden goes to 0 bars.
Has anyone determined if this is a software or hardware fault? Any solutions?
Thanks

Raul69.atl said:
Weird...on mine the bars go all the way down but when i do internet test i still get high connection. Also my internet works fine. Usually bars go down when i hold phone from top right.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Same exact behavior I'm seeing. I hope this is a software issue.