Develop Bugs

Dropping 3g- annoying 1 and 2

So I leave wifi on, and the nexus holds onto to a useless weak wifi signal sometimes before switching to 3g. Annoying #1.
When I t run off wifi, I often have 3g not activated. Often have to either reboot or toggle plane mode. Annoyance #2.
Any solutions?
Sent from my Galaxy Nexus using Tapatalk

Pray and wait for next official radio firmware update or burn your nexus and get iTelephone.

Move to an area with better reception. Its not the phones fault at all.
Sent from my Galaxy Nexus using XDA App

Jeffruby said:
So I leave wifi on, and the nexus holds onto to a useless weak wifi signal sometimes before switching to 3g. Annoying #1.
When I t run off wifi, I often have 3g not activated. Often have to either reboot or toggle plane mode. Annoyance #2.
Any solutions?
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
please specify which phone you have. GSM/HSPA or CDMA/LTE?

I have cdma verizon phone.
To say "move to stronger area" is not an issue. If I'm in a solid 3g are, but a weak wifi area, phone holds onto slow unusable wifi instead of solid 3g"
Have 4g off
Is there a way to have wifi only connect if over a certain strength?
Will 4.03 make 3g radio connect more reliably and quickly. Absolutely cannot use battery saving app with this phone, as when I'm using 3g, and turn phone on, either have to wait 5 mins to get mobile connection or I get the greyed out 3g
Sent from my Galaxy Nexus using Tapatalk

I've had the same issue. It's only happened twice where I switch off wifi and it refuses to turn on 3g, didn't think about toggling airplane mode though. I had to restart both times. I'm thinking its software, at least I hope so.

Smokeey said:
Its not the phones fault at all.
Click to expand...
Click to collapse
Bullschit.
This is 100% the phone's fault.
I am having this problem today. Unfortunately I have not been able to reconnect to 3G all day. 4G, fine... 3G, nothing. My two colleagues with Thunderbolts are having NO problems switching their LTE radios off and running CDMA only. My Galaxy Nexus is the only one that can't find a 3G connection.
I'm starting to hate this phone more and more every day.

If you're in an area with poor wifi, why not just turn wifi off and utilize the 3G at all times?

Same problem here. I prefer 3G to 4G for battery life. For the first week or so, no problem - now I can never get 3G, but 4G works fine. I don't think its the phone - I think its Verizon and its network choices.

Connected to wifi usually offers better battery life in my experience however weak signal kills battery so maybe keeping it on 3g is the better solution here.
Any way of you strengthening your wifi signal?
sent from my googletron

Grannypotts said:
Bullschit.
This is 100% the phone's fault.
I am having this problem today. Unfortunately I have not been able to reconnect to 3G all day. 4G, fine... 3G, nothing. My two colleagues with Thunderbolts are having NO problems switching their LTE radios off and running CDMA only. My Galaxy Nexus is the only one that can't find a 3G connection.
I'm starting to hate this phone more and more every day.
Click to expand...
Click to collapse
I love my gnex, but I got a microsim card adapter in the mail, so I can switch back to my bolt when I need a reliable 3G radio, until google/samsung/vzw get the radio is fixed in the gnex.
It took months before the bolt's radio problems got sorted out. I hope it won't take as long with the gnrx.
Sent from my Galaxy Nexus using Tapatalk

I would just turn off wifi, but when I do, it takes too long for 3g to start up...and often it doesn't start up unless switch to airplane mode
Sent from my Galaxy Nexus using Tapatalk

what roms are yall running?
If you're running Stock, then it's the phone's fault and you should call VZW to get it swapped out.
If not running stock, then it may be the rom at fault.

Weak wifi Signal

For some reason my area inexplicably became a dead zone about a month ago and now I have to rely on wifi calling. Only problem is this phone seems to have a weak wifi radio. My ipod touch and my laptop always have more bars. I get about 1 or 2 bars in my office and it drops calls at that point.
I read somewhere that different kernels can help with this issue. Does anyone have any suggestions?

Also interested

You HAVE to have cell service to make calls on wifi. If it can't at least register with the network it won't work.

What case are you using, my case weakens my WiFi signal
Sent from my SGH-T999 using xda premium

I go case free. And wifi calling works perfect when I am in the same room as the router. Go to another room and I constantly get call drop notifications.

regerer said:
I go case free. And wifi calling works perfect when I am in the same room as the router. Go to another room and I constantly get call drop notifications.
Click to expand...
Click to collapse
Tmobile just told me today that this is a known issue with the SIII wifi... They supposedly are working on a patch from Samsung...

jmfixitman said:
Tmobile just told me today that this is a known issue with the SIII wifi... They supposedly are working on a patch from Samsung...
Click to expand...
Click to collapse
i agree wifi is weak. at school i have a hard time connecting to their wifi. in settings it shows strength as very good but when i try to connect it takes along time and then doesnt connect after all because it says the signal is weak.

That's odd. I can't recall ever having an issue with wifi...
Is it supposedly a problem on all variants?
Sent from my SGH-T999 using xda app-developers app

Yes i've noticed that the WiFi reception is a bit weak with this device....I noticed it because I rely heavily on it in my house for WiFi calling, and I compared it with previous devices I've used with WiFi calling in the past.
I'm just sayin!

Please read forum rules before posting
Questions go in Q&A
Thread moved
Thank you for your cooperation
Friendly Neighborhood Moderator

+1 for me noticing really weak WiFi.
Sent from my SGH-T999 using Tapatalk 2

Are you guys sure it isn't the router? Or perhaps it just reads/reports signal stregnth different than your older phones. (As in, the signal is just as strong, but your old phone reported that signal as 4bars, while the gs3 reports it as 3)
I'm not saying everyone is wrong, I know you're probably right on for your situation, I'm just trying to toss out things you may not have considered.
Right now I'm in my garage, about 15 yards away from my router with 2 walls (one brick) between, and I'm showing full signal. I can double that distance, add more walls and sitting in my car I still pull a signal. Yes it is far weaker but still useable.
Sent from my SGH-T999 using xda app-developers app

Just a quick question. When wifi calling is on, the signal bar for your cell reception should be blank correct?

drrayl said:
Just a quick question. When wifi calling is on, the signal bar for your cell reception should be blank correct?
Click to expand...
Click to collapse
Correct.
I'm just sayin!

wifi calling issues

does anyone else that came to this phone from another t-mobile phone find that the wifi calling is just awful? i had perfect wifi calling on my g2 and mytouch4gslide but now, and although this phone as far as regular performance goes is a million times better in every other department, wifi calling (which i need because i get terrible signal in my house) is SO hit or miss. sometimes i'll get a call and answer it and its just blank silence. the other person will claim to be able to hear me when we finally disconnect and call each other back, but i hear absolutely nothing, like as if the phone was turned off, not even any dead air. sometimes i'll go to dial someone and the dial button just won't even work. it depresses and nothing happens. then a minute later it starts dialing. sometimes people say they call me and it goes straight to voicemail. i'd say its roughly 50/50 whether or not i get a good wifi calling experience or not. is there something with my router that maybe would help to make the experience better? certain settings i should have? i'm not really very experienced with setting up routers. i pretty much just go default down the line and then setup a password and thats it. i've tried clearing data on the wifi calling a couple times but it really hasn't helped. would appreciate any input because at this point its getting to where if i'm expecting calls i'll just have to turn wifi off and hope my fluctuating regular signal is good enough to get the call (usually is fine in my house for calls just practically unusable for data).
thanks

Try to get a range extender from tmo. WiFi calling is unreliable and from what I've seen on their forums they've done nothing to remedy it.

psykhotic said:
Try to get a range extender from tmo. WiFi calling is unreliable and from what I've seen on their forums they've done nothing to remedy it.
Click to expand...
Click to collapse
yea but it worked so good on my last 2 tmobile phones. thats why i was hoping maybe there was some router settings that would work better with wifi calling on the s3 specifically. i'd much rather still use wifi calling if i could. in the past it was so much more reliable than my crappy regular signal here in my house...

polarbearmc said:
yea but it worked so good on my last 2 tmobile phones. thats why i was hoping maybe there was some router settings that would work better with wifi calling on the s3 specifically. i'd much rather still use wifi calling if i could. in the past it was so much more reliable than my crappy regular signal here in my house...
Click to expand...
Click to collapse
It worked better on your other phones because those phones WiFi calling utilized the kinecto servers. Since now they've switched to IMS, WIFI calling has been kinda crappy.
I'm just sayin!

I've had the exact opposite reaction from going from kineto to ims. For me the quality is far superior and less lag and echo.
Sent from my SGH-T999 using xda app-developers app

nikol4s said:
I've had the exact opposite reaction from going from kineto to ims. For me the quality is far superior and less lag and echo.
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
Yes the quality is slightly better but it's not as dependable as it was with the kinecto servers. I get the same exact identical issues as the OP.
I'm just sayin!

I also have the same issue as OP.
I was thinking that probably my network, but it is the phone.
Becuase my S2 works fine with wifi calling, only problem with s3.

byteless said:
I also have the same issue as OP.
I was thinking that probably my network, but it is the phone.
Becuase my S2 works fine with wifi calling, only problem with s3.
Click to expand...
Click to collapse
My S2 has the same identical problem as well. With the s2 I thought maybe it was the phone, but after the problem manifesting on my s3, I knew it's either the WiFi calling software or the network.
I'm just sayin!

well at least i know i'm not alone haha. sucks though. maybe i'll complain to t-mobile, see what they have to say.

[Q] Wifi calling range

I am currently running the latest version of Wicked rom. I have been using T-mobile for the last few years on several different phones. I need to use stock based roms with wifi calling due to the fact I have no cell signal in or around my home. I have been using my Galaxy S3 for the last couple of months , and I just don't get the range from wifi calling like I have with my other T-Mobile phones. When I get down to 2 bars of wifi signal my S3 drops wifi calling and searches for cell signal. This greatly reduces my wifi calling range around my house.All of my other T-Mobile phones keep wifi calling active until I completely lose wifi signal. Is there a script or tweak that can be made to make wifi calling active until wifi signal is lost? I have searched many times but I just can't seem to find any info. Any help would be greatly appreciated

Settings - More Networks - WiFi calling - Connection Preferences
Sent from my SGH-T999 using Tapatalk

chreiton said:
I am currently running the latest version of Wicked rom. I have been using T-mobile for the last few years on several different phones. I need to use stock based roms with wifi calling due to the fact I have no cell signal in or around my home. I have been using my Galaxy S3 for the last couple of months , and I just don't get the range from wifi calling like I have with my other T-Mobile phones. When I get down to 2 bars of wifi signal my S3 drops wifi calling and searches for cell signal. This greatly reduces my wifi calling range around my house.All of my other T-Mobile phones keep wifi calling active until I completely lose wifi signal. Is there a script or tweak that can be made to make wifi calling active until wifi signal is lost? I have searched many times but I just can't seem to find any info. Any help would be greatly appreciated
Click to expand...
Click to collapse
Aside from Doc successfully answering your question, you may wish to check this out. It should increase the WiFi range of your S3 in exchange for a little of your battery.
http://gs3.wonderhowto.com/how-to/pick-up-better-wi-fi-signal-your-samsung-galaxy-s3-0144988/
(Works on stock only too)

TheLastSidekick said:
Aside from Doc successfully answering your question, you may wish to check this out. It should increase the WiFi range of your S3 in exchange for a little of your battery.
http://gs3.wonderhowto.com/how-to/pick-up-better-wi-fi-signal-your-samsung-galaxy-s3-0144988/
(Works on stock only too)
Click to expand...
Click to collapse
Wow! I had long forgot about that! The only issue here is you will have to redo this every time you reboot as it does not stick. I spent a good bit of time on this back on ICS, but ended up moving on to other things. I just tested and on 4.3, it does work by just entering *#0011#, but as has always been the case, it turns back on if you reboot.
Sent from my SGH-T999 using Tapatalk
---------- Post added at 02:02 AM ---------- Previous post was at 01:59 AM ----------
Kinda funny to me how I keep seeing "New" info and discoveries when it was known about a year and a half ago! Lol. But then, I did forget about it....
Sent from my SGH-T999 using Tapatalk

DocHoliday77 said:
Settings - More Networks - WiFi calling - Connection Preferences
Sent from my SGH-T999 using Tapatalk
Click to expand...
Click to collapse
Thank you for you response. I changed the settings in connection preferences, but i'm still not getting what i'm looking for. Even when I set my phone to wifi calling only, the S3 still drops wifi calling with 2 bars of wifi signal left. It must have something to do with the S3 wifi calling app itself. With my last 3 T-mobile phones which were a G2x, exhibit 4g and optimus L9 I was able to get 100ft + outside my house before I lost wifi calling. With the S3 i cant even get 5 feet and I lose it.

chreiton said:
Thank you for you response. I changed the settings in connection preferences, but i'm still not getting what i'm looking for. Even when I set my phone to wifi calling only, the S3 still drops wifi calling with 2 bars of wifi signal left. It must have something to do with the S3 wifi calling app itself. With my last 3 T-mobile phones which were a G2x, exhibit 4g and optimus L9 I was able to get 100ft + outside my house before I lost wifi calling. With the S3 i cant even get 5 feet and I lose it.
Click to expand...
Click to collapse
I've found the wifi signal indicator to be far from accurate in terms of signal strength. For example, when you are at 3 bars, the signal strength might be at 30-40% already. 2 bars is a very weak signal, which is why wifi calling is disabling itself.
There are a couple things you can try. First is getting on the MD5 train. Flash an MD5 ROM along with the MD5 firmware. Get the firmware here: https://db.tt/5C5M8FpD. WARNING, it is the for SGH-T999 only and will brick you if you have a variant (n/l/v) For ROM, S3Rx or Dandroid, if I'm recommending.
Also, check with your router to verify which standard the phone is using. 2.4GHz has a longer range than 5GHz. Also, make sure it's not using 802.11b. Mine was doing this. Had to disable it in the router.
Keep the router away from other electronics, elevate it as much as possible. If the router has external antennas (like the Linksys WRT54GL), you can get high gain antennas (which do help if you know what you're doing), but aiming them properly is important. http://weekendtechnotes.files.wordpress.com/2012/11/antennaradiationpattern2.jpg for reference. Understanding how the signals work may help you in your situation. And remember, the more walls and objects the signal has to penetrate to get to your device, the weaker it gets. A few walls can easily half it's effective range. I don't know what router you are using so no more on this for now.
That's about all the information that I can give you without knowing more about your situation.

Great info from aerowinder! To add, if you are up for it, install inSSIDer from the store. Make sure you aren't using a heavily crowded WiFi channel. Should be easy enough for most to just look at its graphs and know if it's overcrowded.
Sent from my SGH-T999 using Tapatalk

Simultaneous voice + data on Verizon?

I read there are some issues with the Galaxy S6 and some newer phones on Verizon being unable to do native simultaneous voice + data. I think because of a limit of the # of radios and/or antennas. What can we expect with the 5X on VZW? Thank you!

All new phones can do simultaneous voice and data only with VoLTE or while connected to WiFi. When connected to LTE (and no VoLTE) or 3G data they will drop to CDMA 1X if a call comes in. This is because they only have one antenna pathway and one radio. If they had a separate radio for LTE (like done older phones) it would drain battery almost twice as fast since mobile connection is one of your larger battery users.
Sent from my Nexus 6 using Tapatalk

_Dennis_ said:
All new phones can do simultaneous voice and data only with VoLTE or while connected to WiFi. When connected to LTE (and no VoLTE) or 3G data they will drop to CDMA 1X if a call comes in. This is because they only have one antenna pathway and one radio. If they had a separate radio for LTE (like done older phones) it would drain battery almost twice as fast since mobile connection is one of your larger battery users.
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
Ugh, what I feared. How do people do Nav and have phone calls at the same time? Is this going to work with VZW VoLTE on day one? May have made sense to design with two radios and two antennas and only activate the second one when necessary?

hytekjosh said:
Ugh, what I feared. How do people do Nav and have phone calls at the same time? Is this going to work with VZW VoLTE on day one? May have made sense to design with two radios and two antennas and only activate the second one when necessary?
Click to expand...
Click to collapse
Any time LTE is on the second would have to be on, or it wouldn't be able to seamlessly take the call, so that wouldn't have worked.
If your call isn't very long navigation would still work fine, it caches a bit in case of signal drop. The other option would be to download the route ahead of time, Google can do it now I think.
I have a feeling it should have VoLTE though, which would give you voice and data.
http://www.droid-life.com/2015/03/1...e-and-data-now-works-on-nexus-6-with-verizon/
Sent from my Nexus 6 using Tapatalk

_Dennis_ said:
Any time LTE is on the second would have to be on, or it wouldn't be able to seamlessly take the call, so that wouldn't have worked.
If your call isn't very long navigation would still work fine, it caches a bit in case of signal drop. The other option would be to download the route ahead of time, Google can do it now I think.
I have a feeling it should have VoLTE though, which would give you voice and data.
http://www.droid-life.com/2015/03/1...e-and-data-now-works-on-nexus-6-with-verizon/
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
Will the same limitations be on each carrier (ie. if I switch to AT&T I still need to use VoLTE for simultaneous voice + data)? Thank you!!

hytekjosh said:
Will the same limitations be on each carrier (ie. if I switch to AT&T I still need to use VoLTE for simultaneous voice + data)? Thank you!!
Click to expand...
Click to collapse
Nope, the way GSM and CDMA works are different. Say you don't have VoLTE and are on an LTE connection. The tower also has a spot for you on HSPDA and GSM if on Tmo or AT&T, or on CDMA if on Sprint or Verizon. If you get a call you fallback to HSPDA or GSM. A similar thing happens on CDMA. The difference is CDMA can't do voice and data on the same connection, GSM and HSPDA can do both.
Sent from my Nexus 6 using Tapatalk

_Dennis_ said:
Nope, the way GSM and CDMA works are different. Say you don't have VoLTE and are on an LTE connection. The tower also has a spot for you on HSPDA and GSM if on Tmo or AT&T, or on CDMA if on Sprint or Verizon. If you get a call you fallback to HSPDA or GSM. A similar thing happens on CDMA. The difference is CDMA can't do voice and data on the same connection, GSM and HSPDA can do both.
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
Really wish phones included a Ev radio so this would not be an issue. I wonder if the voice quality/codec on AT&T has improved over the years? Last I used them their voice quality was far inferior to VZW. May be time to consider a carrier switch.

I've not had problems with voice quality, the few times I call on AT&T. They weren't as good as Sprint (their new network has simply amazing voice quality, and data was OK lol).
Mostly I use Google voice via hangouts to make calls, so the network data is more important then voice quality.
Sent from my Nexus 6 using Tapatalk

_Dennis_ said:
All new phones can do simultaneous voice and data only with VoLTE or while connected to WiFi. When connected to LTE (and no VoLTE) or 3G data they will drop to CDMA 1X if a call comes in. This is because they only have one antenna pathway and one radio. If they had a separate radio for LTE (like done older phones) it would drain battery almost twice as fast since mobile connection is one of your larger battery users.
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
How new? My S4 gets simultaneous voice/data on lte, but not on 3g. Are you sure you're right about this?

Well, the S4 is not a new phone. And yes I'm certain without advanced calling (or VoLTE) you will not have voice and data on LTE at the same time.
Sent from my Nexus 6 using Tapatalk

Something I'm just realizing...I have a lot of friends and offices that have cell phone amplifier / extender systems that only repeat 3G not LTE. With no 3G radio this phone will be only able to do 1x for voice/data?! I think its also crazy that pure data devices such as the MiFi/personal hotspots still include ability to do EvDo Rev A yet phones don't!

jackdubl said:
How new? My S4 gets simultaneous voice/data on lte, but not on 3g. Are you sure you're right about this?
Click to expand...
Click to collapse
The S4 had extra antennas unlike the newer phones because of VoLTE. The S4 had both radios on at the same time which eats more battery on a call with VoLTE you have improved battery life during a call and do both at the same time. The move was intentional to save costs as well as battery life in the long run.
Sent from my SM-N920T using Tapatalk

I just got my Nexus 5X up and running on verizon. With my Galaxy Nexus I was about to take a phone call while tethering, but can't do that on this phone. Is there a fix for this? It's kind of a bummer because I tether often and take phone calls.
Edit: (12/18/2015) I figured it out. Chatted with VZW tech support to enable HD voice feature, and made sure "enhanced LTE mode" was on in settings. Voice+Data work simultaneously now!
Update: (1/19/2016) I have still intermittently had issues with simultaneously voice+data. I started to wonder if it could depend on who you are calling or what tower you are connected to. I powered down my phone and pulled the sim card for a few seconds, then rebooted and it worked again.