Database Develop

drop calls not getting calls

ok i have a slueth rom http://forum.xda-developers.com/showthread.php?t=366284&highlight=slueth and have been running it since 6/08 and had no major problems. so in the last few days when i have tried to make a call it will just act like it is going to call and then it will say "call ending". when i reset the phone(shut off) it will make a call but after that it stops making calls, it will try to call and it seems like it is looking for service. it can have full signal and still nothing, i can't receive calls either.

oh wow this is exactly what has been happening to me! What service/region are you?
Does it happen with texts as well?

yes it does i dont get text, im from fl i just drove up to boston mass on sunday. i have att wireless.

I am from northern VA and here is my problem more in depth, hopefully we are having somethign similar so this thread can serve a purpose to us both:
Note: this started when I first flashed Hyperdragon3 (with m2d) and persisted with L26 Kaisertouch (flashed because I thought it was a problem with ROM compatibility.
From time to time, the tilt decides to, from what I've acquired, not make a proper connection to the network. Although it displays 2 bars or 4 bars whatever, it is unable to make calls, receive texts, or connect to 3g/edge. The calls turn out like so, I call, the phone says "dialing" for about 6-7 seconds and then makes the ubiquitous sound of a call ending the beeping noises.
Regarding texts, when this problem surfaces I can't send any texts "Your message cannot be sent" and cannot receive any either (usually receive them all at once a little later).
Soft-resets used to fix this problem but they don't anymore.
So far I have restored my tilt to factory rom/spl/radio and still the exact same problem is there...
This leads me to believe that it may be a hardware problem?
Any suggestions?

yeah it sounds like the same problem, i did try something that worked for the rest of the day. i took the battery out for about 20min and put it back in and it seem to have done the job. ill try tomorrow and see if it stays working. im quite sre this might not be the real answer but for now its a band-aid.

that doesn't seem to work consistently for me.
This is really bothering me, I don't know what to do.
any help?

I live in Fresno, CA and all the suuden my 1 year old tilt stopped working consistently and went from 3G to EDGE to nothing and I could not make or recieve calls etc and my batterys drained quickly. I doenloaded a 3G toggle to turn off 3G and just use EDGE (auto to GPRS). This worked but who wants to work on EDGE. Funny thing is that 3G worked in Sanger which is 15 MIles east of Fresno. SAnger just recently got upgraded to 3G.....
Long story short, I took my phone in and they exchanged it since I had 3 days left on my warranty. The new Tilt with Windows 6.1 is sweet with some new bells and whistles.

[Q] Confusing phone issue, please help!

Here's the situation:
I have a Galaxy S, Firmware 2.3.3
1 week ago, my phone started behaving funny in my apartment (in greater Vancouver BC, north Burnaby). It would randomly cut off the other person, sometimes right away, sometimes after 20 minutes of talking.
It was not dropping calls though, the person on the other end could still hear me, but I couldn't hear them anymore. The call timer was still counting, it was just dead silence. No disconnect noise or anything, just suddenly I couldn't hear them.
I haven't dropped, upgraded, or otherwise changed my phone recently. So far it works properly in other areas of the city.
The interesting part is, my girlfriend is with Telus and her phone is behaving in the same manor. She just bought her phone 3 weeks ago, a crappy flip phone (as her blackberry curve kept dropping calls in the apartment) and hers has the same "muting" issue in at least 2 locations in the city.
Both companies suggest it is a phone issue, not a service issue, and we should buy out our contract with them and get new phones. They say that is our only option.
What can I do about this?

Well they lied about the phone issue. Only the network provider (like at&t) can cause these problems. Ive experienced it before and i know how network providers work. (been there, done that) change network provider or do whatever else you want. There isnt much choice here...
Sent From The Phone Of Gamers

Thanks for the reply
I'm paying for services not received and I signed a contract with them so there must be something they can do.
Anyone else have some thoughts?

Well you can try to unlock another phone (4g maybe) and put your sim in there...it might help but out of all my expieriencez i never thought the phone was the problem...
Sent From The Phone Of Gamers

TERRIBLE Problem w/Dropped Calls - Need Help

Hey everyone,
I really need your help. I have a serious problem with my Sony Xperia Z 6603. I have spent too much time trying to troubleshoot this on my own so now I need your help and invite any if they have experienced the same. The synopsis:
At times, when utilizing my phone for phone calls, I got repetitive and persistent dropped calls.
Background info:
- City is Winnipeg of Canada
- Fido is my provider (essentially Rogers network)
- I have an LTE micro sim card (although Winnipeg hasn't had LTE rolled out just yet)
- I am rooted ONLY and on .434
- I have mobile network configured as follows:
- I use the LTE APN and select it on when in cities that have LTE
- Fido's website states this about bands:
Specs on the Z are as follows:
Now onto the symptoms....
The dropped calls occur sometimes when I am in a call, other times immediately when trying to dial out. An example would be, I'm driving and currently on a call, suddenly it cuts me off and my attempt to redial just keeps cutting me off from even placing the call. Wait a bit, keep driving, and now I can call again.
This problem happens in certain locations in the city. For instance at home I can be in calls for awhile, but there is this one part of the city for instance (just SW of the airport) and about a 2-3km radius that no matter what I do, placing a call is virtually impossible and yes signal strength appears normal. Also it appears that data is working normally. When I say impossible I will attempt the same call up to 10 times, each and every one dropping, some when 30 seconds into the call, others when immediately trying to dial out.
I also noticed that it also occurs while driving and talking for long periods. In other words, in a call normally and for a lengthy duration while transiting through the city and then suddenly drops perhaps while the phone is switching towers (a thought).
It's really bad. This is becoming impossible to tolerate and embarrassing to my customers and friends I speak with.
I downloaded an app from the play store called 'GSM Signal Monitoring' (https://play.google.com/store/apps/details?id=com.signalmonitoring.gsmsignalmonitoring&hl=en) to compile more information. Here are some screenshots but don't really know how to interpret the data. I see the db levels appear normal for a signal but not sure why the graphs reflect sudden spikes like that, perhaps my issue? Also notice in the graphs when the color changes for a new line, I believe when transitting from one tower to the next while driving. I was hoping some of you could perhaps try this app and compare what your results look like to mine, especially if you happen to be utilizing this phone in Winnipeg as well. Or if you know already, provide some insight on these results....
Things I have tried in my troubleshooting:
- Rebooting
- Switching DATA off completely (this seemed to provide a fix at times, but not at all times)
- Called FIDO and had them perform a "switch" or "network" reset of my phone on their end
Things to consider:
- The LTE micro sim is fairly new (upgraded it about 2-3 weeks ago)
- There are times when the phone works as it should and calls are placed and held normally (such as from within my home, SE corner of the city) but even near my home, while driving, I've had the calls drop but don't forget this doesn't just happen ONLY when I'm driving/transiting. There are spots where I am situated and can't place any calls without it dropping either shortly after or within 60 seconds of connecting.
I am really hoping that someone out there can help me resolve this issue or at least provide some direction from here. I purchased it from the UK so if it's a hardware issue I will probably have to send it back to the UK for the warranty to be honored.
Thank you for taking the time to read my dilemma!

Have you deleted any system applications?
Have you tried to use,2g only,3g only....
Sent from my C6603 using xda premium

Awhile ago I used "App Quarantine" to quarantine some apps that I wasn't using. Since you brought this up though I had a look again in the quarantine list and also noticed the following 'com.xxxx files in quarantine as well which I never placed in there myself so I have no clue if that's normal or if they are associated with the apps I quarantined \, and no didn't select 2G or 3G ONLY, but I have switched DATA off entirely:

Not sure but could be some of this app is needed by the system,and causing the call drop.
Did you have this issue before rooting?
Best place to start is a stock no rooted firmware.
You can also try deleting fast-dormancy-wakeup.apk .odex
Or try 2g only.
Sent from my C6603 using xda premium

Thanks for the feedback. Just curious what the correlation between using 2G vs 3G would be with phone call reliability? And what is the 'fast-dormancy-wakup.apk .odex you are referring to?
Honestly I think I did have this issue before rooting but very difficult to be certain of this.

So I took everything out of quarantine and no changes. Still dropping calls.
Sent from my C6603 using xda app-developers app

I thought I was the only one in the world having the same problem back then when I first got my phone in march.... But it looks like yours might suffer the same thing as mine did. I live in Alberta.
My friend, when the call drops, does the signal appears to be resetting itself?
What is the longest call time that you ever have on this phone?
When did you get your phone, was it like that when you first got it
Sent from my Sony Xperia Z using xda premium

The feeling is mutual! There are times (or more specifically areas) where my phone behaves normally. In my home I can stay in a call forever. However about 2km away when driving on this particular road, at the same point every time, my call will drop. It does not appear that the signal/network is resetting itself when this happens (ie drops to no signal and comes back). I got my phone when it was released, actually this one is my second, I cracked the screen on my first one within a week. I can't quite recall if I had these issues from the beginning because as stated it happens when I am moving around.
I am now about to try to restore my phone to factory but before I do, I am wondering if I use the backup/restore app included, will I retain all my apps, their data/settings, and all my contacts and texts?
Should I use this app or PC Companion?
Do I need to do anything special or just use PC Companion for a restore to get back to stock settings (including un-rooting).
Thanks

I would suggest you to use the pc companion to repair the Rom. This will wipe all data from your phone just like the factory reset would.
If you did all these and found the phone still behaving like that, I think there might be something wrong with the hardware of the phone, it's highly recommend you return your phone for an exchange.
My first xperia z was like that, even worse I would say. Mine just won't let me call.. I never had the call time more than a minute it cut me off randomly, sometimes right away when the call was established, sometimes it cut me at 2 seconds..
When I got my replacement everything is just fine
Sent from my Sony Xperia Z using xda premium

Ya I figured it out. Just completed the restore with PC Companion. I did use the backup/restore function though to restore my contacts/texts/data/settings etc. Any chance you think by restoring this info the problem could migrate back? I can confirm I am not rooted anymore.
Now will test the phone calls. I will be in those areas where I know for sure my calls would drop, tomorrow. I'll report back. Really hope this works.

It might work. I do think it will solve the problem. Yours wasn't as bad as mine mine just wouldn't let me made any calls and the signal kept reseting whenever I call.
Good luck and will wait for your report.
Sent from my Sony Xperia Z using xda premium

Tomorrow I head to an area where it was virtually 100% dropped calls for me so I will report back how it goes after the restore/unroot.

No changes I'm afraid Still the same behavior. My next move is to take 2 other phones with me now, one being an iPhone 4 and attempting to use in those same areas. I find it very strange behavior on my phone's part and wonder if it's an area issue but these are dense, populated areas.
Frustrated......

Or what you could also try is to borrow a sim card from someone and then test in those areas.
Sent from my Sony Xperia Z using xda premium

I do have a spare sim card with FIDO. I just switched to the LTE card a few weeks ago. I guess I can call them and switch back to the older sim temporarily to see if the issue lies there. I will try the phones first. If I get the same symptoms with other phones, I will then try the sim card.

I have the same problem in about 4minutes my calls drop,doesnt matter were i am, on a side note dough,i use a normal sized simcard and cut it to fit my Z sooooo i guess my sim isnt playing nice with the Z ill get my microsim next week so i will report back and let you know if a completely new updated micro sim with lte enabled and ready is the fix
Sent from my C6603 using xda app-developers app

Thanks for the feedback, in a couple hours I'll be in one of those areas where I experience this and will try my iPhone 4 and then try switching back to an older Fido micro sim. I'll report this afternoon.

So interestingly today my iPhone 4 dropped a call in the same area. It also was having signal issues, cutting in and out, but managing to maintain the call too in various spots. So I'm starting to believe now that this may be a network issue with my provider and the area in question. I find it very odd though that it can be such a large and dense area. There is about a 2 mile stretch of this road where I frequently receive dropped calls. How can that possible in a city?? By the way I also swapped the sim cards when trying all this out.
Does it have anything to do with the fact that it's right on the approach path of a runway at the international airport, or near a military base? Keep in mind that I do occasionally get the dropped calls in other spots in the city as well but this area specifically is terrible.

airbus318 said:
So interestingly today my iPhone 4 dropped a call in the same area. It also was having signal issues, cutting in and out, but managing to maintain the call too in various spots. So I'm starting to believe now that this may be a network issue with my provider and the area in question. I find it very odd though that it can be such a large and dense area. There is about a 2 mile stretch of this road where I frequently receive dropped calls. How can that possible in a city?? By the way I also swapped the sim cards when trying all this out.
Does it have anything to do with the fact that it's right on the approach path of a runway at the international airport, or near a military base? Keep in mind that I do occasionally get the dropped calls in other spots in the city as well but this area specifically is terrible.
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Click to collapse
Omg...runway...i experienced it aswel when i mentiont it yesterday now i think of it it was along side schiphol airport amsterdam a mayor one,it could be one of the sources of the bug,i think it could be more reasons in the equation like,old sim,no lte sim,thus maybe bad contact with sim,radio interferrence ect.ect.
I gues al those factors in on the call droppin
Sent from my C6603 using xda app-developers app

An update. Perhaps the most intriguing thing I have found so far but not exactly sure what it means.
If I switch my data to GSM only (ie Edge) the phone calls instantly become rock solid. No more dropping. As soon as I switch back to WCDMA mode (3G & HSPA+) the problem comes right back.
Starting to sound more and more like a network issue with the provider. I have relayed this info to my cell provider and they are looking into it and getting back to me.
Anyone else find this?

Problem with signal

Hey guys, i have a problem with my signal, sometimes it passes from full signal to 2g, even though I'm in a full 3g covered area, and i lose connection in skype every few minutes while I'm on a video call.
I didn't have the problems before, that started today, i tried to re flash the Rom, hasn't solved it, my only concern that yesterday i have tried to charge the phone with the pogo pins, but instead of putting the - on the - and the + on the +, i have put it the wrong way, and the phone had shutdown, and then nothing happened, just that stupid and annoying problem!!!
is it have something to do with that? how can i fix it???

[email protected] said:
Hey guys, i have a problem with my signal, sometimes it passes from full signal to 2g, even though I'm in a full 3g covered area, and i lose connection in skype every few minutes while I'm on a video call.
Click to expand...
Click to collapse
I'm on O2 UK, this phone probably has the worst signal i've ever experienced. It'll regularly go from 4 bars to "x" (no signal) on and off all through the day, or it will say it has a full signal and my friends tell me they've been trying to call me all day & have sent me texts.
It's got to the point where I'm looking at selling the phone now, as it's fast becoming no use to me. It's not the network, I can sit next to a friend also on O2 UK with an iPhone and they can stream a youtube video, I can't even make an outgoing phone call (just goes BEEP BEEP BEEP and hangs up).
Shame, I love the features of the phone, but its useless if i cant receive phone calls or texts on it.
Its about 2 months old, never been rooted has all updates applied that have appeared (14.1.G.2.257 at the moment) and has had the awful signal problems since day one. If i knew it was going to be so bad I would have returned it, but left it too late (14 day return period)

Never happened at the moment.

Poor Signal
I am also having poor signal problems maybe someone could help with setting ideas??????????
micropizza said:
I'm on O2 UK, this phone probably has the worst signal i've ever experienced. It'll regularly go from 4 bars to "x" (no signal) on and off all through the day, or it will say it has a full signal and my friends tell me they've been trying to call me all day & have sent me texts.
It's got to the point where I'm looking at selling the phone now, as it's fast becoming no use to me. It's not the network, I can sit next to a friend also on O2 UK with an iPhone and they can stream a youtube video, I can't even make an outgoing phone call (just goes BEEP BEEP BEEP and hangs up).
Shame, I love the features of the phone, but its useless if i cant receive phone calls or texts on it.
Its about 2 months old, never been rooted has all updates applied that have appeared (14.1.G.2.257 at the moment) and has had the awful signal problems since day one. If i knew it was going to be so bad I would have returned it, but left it too late (14 day return period)
Click to expand...
Click to collapse

The signal fluctuation is most likely related to the aluminum sides(a reason why T-Mobile went with plastic).
Sent from my C6903 using Tapatalk

[Q] Dropped Calls

In the last few days I've had at least one dropped call per day on my S6. It doesn't make any difference if my recipient is on a cellphone or landline nor does it matter if I'm in the car on bluetooth or using the handset elsewhere. I did some searches and found others having the same problem, not so much with AT&T (mine) as opposed to Verizon and T-Mobile. Some say a factory reset cured the problem, but I hate to do it unless I have to. Just curious how others on AT&T are faring. My previous S4 never dropped any calls nor did my HTC M7 so I'm thinking it's not a network issue, but something in the phone itself.

I've never had a dropped call in the month I've had the device. I had my chubby cheek hang up on my mom once last week, but that's as close as it gets. My area gets pretty good coverage for att and tmobile though. I've yet to drop a call since joining at&t

My Black Galaxy S6 Edge 64gb module was dropping calls like crazy, and was still within my exchange period so I switched it out. Haven't had any dropped calls since.

Call and connection quality have been stellar for me. Only dropped calls I've had are when going through known dead spots.

Looks like the factory reset fixed it for me so all is good now.

rmc69 said:
Looks like the factory reset fixed it for me so all is good now.
Click to expand...
Click to collapse
Have you had any dropped calls since your last post here? I'm having dropped calls often. I don't think a factory reset will help me because I wiped all data before flashing the rom I'm running. I may try a factory reset from within the settings menu if you haven't had any dropped calls since the 15th.

I've only had a couple dropped calls since then, but my problem now is that sometimes the other caller can't hear me, specially when I'm driving and on bluetooth through the car audio. It can't be the other caller because they were on a stationary, land-line phone. I checked out my mic by making a voice recording so the mic is fine. I just tried unchecking "Enable HD LTE Services" and I'll see what that does and report back. If it were not for the very nice camera, the annoyance of the dropped and muted calls plus the bad battery life would be enough to make me switch this phone. It's got to be a device-specific bug. My HTC M9 is running Android 5.0.2 and is rock solid and never dropped a call. Same with my LG G3. I would send in my S6 for repair, but I'm not sure what they would do. Not only would I get a refurb back, but it might do the same thing. If you've been following the threads, you might have seen that Sprint had to push a special update for it's S6 customers to fix dropped calls. Verizon customers are also having it bad (I'm on AT&T). It can't be all network issues though as like I said, my other devices including an LG G3 have never dropped a call.

Thanks for the response rmc69. I did uncheck the HD lte and it did not help me at all. Let me know if you have a different result. Thank you

The Sprint S6 and S6 Edge have the same problem. I have to turn off the LTE radio all together to have a usable phone. I couldn't send/receive text, I had dropped calls and a very poor signal. Once I turned the LTE radio off, all those problems went away. I realize this is not a fix but it's a workable bandaid for those that are having problems. Good luck to you guys.

Turning off lte did not work for me.

Robert, how did you turn off LTE? By going into the testing mode and changing it from there? Or were you simply referring to unchecking Enhanced LTE Services?

I think I figured it out from this thread, at least for AT&T
http://forums.androidcentral.com/samsung-galaxy-s6/518691-any-way-turn-off-lte-data-galaxy-s6-t-version.html

rmc69 said:
I think I figured it out from this thread, at least for AT&T
http://forums.androidcentral.com/sa...ay-turn-off-lte-data-galaxy-s6-t-version.html
Click to expand...
Click to collapse
I tried that, it did not work for me.

Sorry turning off LTE still didn't help. I guess the only alternatives now would be to wait for 5.1.1 and see what it fixes, or you may just consider asking for a replacement.
Sent from my SAMSUNG-SM-G920A using Tapatalk

rmc69 said:
Sorry turning off LTE still didn't help. I guess the only alternatives now would be to wait for 5.1.1 and see what it fixes, or you may just consider asking for a replacement.
Sent from my SAMSUNG-SM-G920A using Tapatalk
Click to expand...
Click to collapse
Yeah that is what I'm afraid of. Every time I go to the at&t store it's a big hassle. Hopefully an update will fix our problems.

@rmc69, is your phone rooted and running a custom rom?

No; pure stock. It's also a 64 GB model. I'm wondering if there is a difference that could affect reception, i.e., is the antenna placement exactly the same. I changed my band to GSM Auto last night removing LTE and so far, I haven't had any dropped calls, but it's too early to tell. The biggest problem I'm having is that sometimes callers cannot hear me, especially in the car using bluetooth.

I am rooted running DennisRom. Yesterday I did a factory reset via the stock recovery and made 4 calls and did not have 1 drop. I'll see how it goes for a few days and report back.

Great! That's encouraging.

Bad news, I just called my wife and the call dropped before she could answer her phone. I think I may give up and get a different phone. I'm loosing hope.