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3G AT&T Calls on Fuze: Not Reliable!

I wanted to start this thread to discuss making and receiving phone calls on AT&T's 3G network. I find that making and receiving phone calls while connected to 3g or HSDPA is very unreliable on my Fuze. The phone seems to always connect to H whenever there is any signal available, even if the signal is very low and unreliable.
I will sometimes recieve a call while connected to H and the person cannot hear me at all. I'll look at the phone to see that the H signal strength is very low. Instead of smoothly switching to Edge, the phone completely loses signal and drops the call. After having no signal for around 10 seconds, it will then reconnect to Edge and have 2 or more bars of service. Why couldn't it just switch to Edge without dropping my call? Any why hang on to an HSDPA connection if signal is unusably low?
I see other AT&T customers with 3G phones (Bold, iPhone) and they don't seem to have this same issue. Their phones can remain in 3g mode and work just fine. My only choice seems to leave 3G turned off, but switch it on when I need a fast data connection (a terrible solution).
I used to have Verizon and they just connect you to both their 3g and 2g networks at the same time, you can even see 2 signal meters on most phones. They use the 3G (EVDO) for data and 2G(1xRTT) for voice or data, when 3G is unavailable. Why can't my Fuze do the same thing on AT&T? Clearly, 3G doesn't penetrate building as well as 2G and the phone needs to use both, seamlessly, to work properly.
Just for background, I am using a Fuze with the latest EnergyROM and Radio 1.14.25.35 and matching Rilphone.dll. I have noticed this behavior with other roms and other radios also. I can't remember how stock worked since I haven't had it in such a long time.
Does anyone else notice the same behavior as me and does anyone have any ideas on how to improve the way the phone manages 3G vs Edge during phone calls?
Thanks in advance for anyone who can help me understand and resolve this problem.

different radio
Drop into the ROM section, hit the radio thread. I found better luck dumping the stock radio on the Fuze, and installed a different one.

Any particular one that you recommend? Ideally, a radio that doesn't use 3g unless signal is reasonably strong would be best. Ive tried all of the official Fuze ones without any change in the behavior I described at all. Based on your signature, it seems you are currently using the same radio as I am...

TheSopranos16 said:
Any particular one that you recommend? Ideally, a radio that doesn't use 3g unless signal is reasonably strong would be best. Ive tried all of the official Fuze ones without any change in the behavior I described at all. Based on your signature, it seems you are currently using the same radio as I am...
Click to expand...
Click to collapse
I found the newest Xperia radio (1.16.25.48) to be very satisfactory as far as signal strength goes - in fact I had more bars of 3G and dropped a lot less calls because of it. However, you need to be Security Unlocked to flash your phone with that radio. The only problem with the Xperia radio I had was the pitiful GPS accuracy.

sopranos16 where are you located? There are a few cities where users have been complaining about the 3G network. NYC/Northern NJ and San Fransisco are two that come to mind. Check on howardforums.
I'm now using a Fuze because AT&T shipped to to me to replace my Bold which will drop 5-15 calls a day in NYC. I don't believe it is a problem with the Bold, I have other lines with 3G that have problems. But this is the solution they offered so I'll try it.
You cal also check the at&t support forums as there are plenty of complaints there too. I just got the fuze and haven't really tried it yet. See what happens on Monday.

I'm located in central New Jersey: Monmouth County. Edge coverage is pretty good but 3G tends to always have a weaker signal strength and occasionally drops out, especially indoors.

Well the first day in lower Manhattan and not one dropped call. I'll let you know what happens later in the week.

bump
soprano, did you try the xperia radio? Let us know, I have had this issue for a while now...and your explanation was on the head.
Think I may just go ahead and security unlock my phone.

Network issue

Hi everyone
I have an issue, when I'm on my office the network signal isn't strong so when my One S go to "NO NETWORK" after it don't go back to network.
When the situation is this I can't go to airplane mode, change operator (from settings), the only thing that work is shut down and restart (no fastboot).
Anyone else have this problem?
Maybe is a software bug?
I have the Paul recovery and su
EDIT: More info
That don't happen every time that the phone go to "no network".
I think that happen when it a weak signals and are under 2G network.

there are users with similar issues, I only use 2G networks. If i want to do a bit of browsing i will manually change to auto mode, but other than that i always leave it at 2G..
hopefully there will be a radio upgrade soon that should fix this problem...

I'm suffering from the same behavior!
I'm still with the original ROM with no ROOT so I contacted HTC about it yesterday.
I got today their reply today:
"On your phone, kindly go to settings > mobile network > Network mode, kindly change the network mode and check how the signal will respond to each of them.
-Kindly try a different SIM card, to check whether the issue is with the SIM card or the phone itself.
- Soft reset for the device by pressing the power button for 10 seconds.( Note that soft reset erases any unsaved data.)
- Safe mode(which disables any 3rd party application which might be causing conflicts for your device.) for the device by Switching power on , then press and hold volume down when the quietly brilliant logo appears on your screen, you should see 'safe mode' text written on the bottom left of your home screen.
- Factory data reset, kindly backup your data before proceeding with this step please as you will
lose every data on the phone's memory.
Please go to Settings > storage > Factory data reset > Reset phone."
I haven't done anything yet and I didn't notice the 2G issue you mentioned.
I also haven't got this issue for the last 48 hours but did encountered it twice (!!!) on Sunday while driving across the country.
I'll try having the Network on 3G only and see if that matters although the area I leave in is not with good 3G reception.

GSM is 2G
WCDMA is 3G
i use GSM only unless im using the net

I'm aware to the 2G-3G difference
I'm on WCDMA preferred so my phone tries to be on 3G.
My phone also suffers from the 3G<->H data connection jumps while the desire wasn't having any with the same provider (different SIM of course).

sorry, My bad !!
i understand what your saying now
I cant confirm much as my provider doesnt have 3g signals in my area
If i try to use 3g at my home, I have 0 bars thats why i always use 2g

I switched to 3G only (since I have most of the time 3G and surly wants it for the data rate).
I know I have on my way to work and back places with 2G only but I'll give it a try for the coming days and reply.
BTW, just few minutes ago, while having 3G active for sure (before the 3G only switch when it was still on 3G preferred) I couldn't make any phone call although I had 4-5 bars and data connection was running.

Two days ago I tried to change my sim.
Before I had a cutted microsim, now an original microsim and the issue is still present.
Yesterday I had this problem only in afternoon, not in morning and only where the switch from no network -> 2G -> 3G is very very frequent.
In all other times out from office I never had this issue.

I also changed SIM with no help, stayed in 3G network only with no help and observed that when such a network crash happened, GPS reception is also disconnected!
I had no coverage situations with the 3G only mode which recovered, but what we are facing is a network "crash".
Our situation was escalated to technical support of HTC after I wrote them all the data and they tried to solve it over the emails w/o success.

Same problem for me. I tried only 2G, 2G/3G, only 3G, but no way..same problem..i hope an update can solve this..

I just bought my new One S from T-Mobile yesterday and everything appeared to be okay but now I can barely get it to hold a signal. Forget throwing it on GSM only because it will have signal for a whole few seconds before dropping it. I also am having Wi-Fi issues as well. It just intermittently drops the connection there as well... Not a great start!

whether im imagining this or not im not sure, But for me it seems like, When the Network signal increases, the WiFi signal drops, And when the WiFi signal Increases, the Network signal drops...
ive been noticing this for over a week now, So it cant just be coincidence..
I dont think my (or our) handset is faulty, I just think theres a pretty big bug in the ROM, and no matter if you switch ROMs they all use the same base at the moment..
This phone has great potential. But HTC need to be listening to us and release some updates. !!

azzledazzle said:
whether im imagining this or not im not sure, But for me it seems like, When the Network signal increases, the WiFi signal drops, And when the WiFi signal Increases, the Network signal drops...
ive been noticing this for over a week now, So it cant just be coincidence..
I dont think my (or our) handset is faulty, I just think theres a pretty big bug in the ROM, and no matter if you switch ROMs they all use the same base at the moment..
This phone has great potential. But HTC need to be listening to us and release some updates. !!
Click to expand...
Click to collapse
I noticed the same exact issue last night. My phone will go to full signal before dropping whichever connection. I'm just glad this phone can handle staying on 4G without draining the battery like crazy although I can only imagine how much further it'd go with 2G.
Sent from my HTC VLE_U using xda premium

worms said:
I have an issue, when I'm on my office the network signal isn't strong so when my One S go to "NO NETWORK" after it don't go back to network.
(...) the only thing that work is shut down and restart (no fastboot).
Click to expand...
Click to collapse
Exactly the same here. But I had a different WIFI issue - WIFI won't drop but stay connected - even if I am far away off the AP.

killerm said:
Exactly the same here. But I had a different WIFI issue - WIFI won't drop but stay connected - even if I am far away off the AP.
Click to expand...
Click to collapse
that one is also a known bug.
On top of that, WiFi will sometimes stuck at "error" status with no ability to turn it on...
All probably related to the same network chip driver or "Radio"...

I have same network reception problem. When I am in a poor reception area it loose reception all of a sudden and takes a while before getting the signal back. I often toggle flight mode to force network detection. I also think the reception bars don't reflect reality; sometimes it seems I have good 3G reception but cannot surf the web. I fear it is a critical bug. The phone seems unable to handle correctly signal fluctuations and protocol changes (GSM, 3G, HSDPA).

I'm colletting more data about this problem.
First of all I don't have any wifi issue, or maybe I don't see this.
I have a modem with N standard and one with G standard and nothing of this have issue.
About the network issue in this days I never have, only when I'm in office and the signal suck a lot.
Q: Anyone that have Tmobile/mod rom with 1.70 RUU have this issue?

worms said:
I'm colletting more data about this problem.
First of all I don't have any wifi issue, or maybe I don't see this.
I have a modem with N standard and one with G standard and nothing of this have issue.
About the network issue in this days I never have, only when I'm in office and the signal suck a lot.
Q: Anyone that have Tmobile/mod rom with 1.70 RUU have this issue?
Click to expand...
Click to collapse
I don't have wifi issue at work with a powerful 802.11n network AP but experienced occasional fake/unstable/disconnect wifi at home with a poor AP which operates on no-one-knows-but-definitely-not-N network. I don't really bother too much cos I can always turn wifi off and on to reconnect.
In terms of 3G/H signal switching problem, yes, a bit annoy especially when playing online game on 3G but accessing internet is fine just need to sometimes wait a bit longer.
I am on international unbranded version in UK.

I've the same problem in France about 3G/2G and wifi on international unbranded version.

Losing signal while switching 3G-2G-3G....

I noticed a big problem with the radio.
I live in an area where the 3G signal is not very strong, and it happens that the phone changes alone in 2G mode, then return to 3G when the signal is better..
It happens, however, that during these steps 3G-2G or 2G-3G phone loses the line, so that in that passage i'm not contactable if someone phone me, I realize that I get the SMS notification later.
I noticed that the indicator of the phone signal is reset, and I can not even call. As an indication of the lack of signal is about 4-5 sec
Someone said me there is the same problem on Moto G
With other devices like Galaxy S2 and Motorola Defy+, in the same place with the same operator and sim didn't happens...

toroloco73 said:
I noticed a big problem with the radio.
I live in an area where the 3G signal is not very strong, and it happens that the phone changes alone in 2G mode, then return to 3G when the signal is better..
It happens, however, that during these steps 3G-2G or 2G-3G phone loses the line, so that in that passage i'm not contactable if someone phone me, I realize that I get the SMS notification later.
I noticed that the indicator of the phone signal is reset, and I can not even call. As an indication of the lack of signal is about 4-5 sec
Someone said me there is the same problem on Moto G
With other devices like Galaxy S2 and Motorola Defy+, in the same place with the same operator and sim didn't happens...
Click to expand...
Click to collapse
This is normal, just probably the moto g is trying to connect to a multi-carrier 3G, which takes few seconds.Also switching between 3G and 2G involves dropping the current connection.
My advice in your case would be to switch to 2G entirely.

It isn't normal, aldo Motorola assistance said it…
Sent from my Motorola Moto X XT1052

other people wit this problem??

those days I'm trying with am other carrier(Vodafone) but even in my area has a stronger signal compared with TIM even with this I have noticed the same defect ......
however, during these tests, I may have discovered the cause and also the remedy of this defect, I still do some testing and will let you know

Thread already exists here
http://forum.xda-developers.com/moto-x/moto-x-qa/moto-x-xt1052-losing-signal-switching-t2711488
Thread closed

Data Connection Issues

Have anyone experienced data connection issues on the AT&T variant, some of my apps like Craigslist won't open, but it will on other devices?

same
alhadee12 said:
Have anyone experienced data connection issues on the AT&T variant, some of my apps like Craigslist won't open, but it will on other devices?
Click to expand...
Click to collapse
Yes. I am having issues on my Sprint Note EDGE. The signal goes up and down and the data is very spotty only giving me any data about 20% of the time. I am waiting on my replacement but I doubt the phone is faulty.

Sortilege said:
Yes. I am having issues on my Sprint Note EDGE. The signal goes up and down and the data is very spotty only giving me any data about 20% of the time. I am waiting on my replacement but I doubt the phone is faulty.
Click to expand...
Click to collapse
My issue is now turning out to be one app, which is Craigslist. I can't connect via AT&T data, but I was able to use a Verizon Hotspot to connect.

I have noticed data & wifi connection dropping frequently. I have been blaming my mobile operator and internet service provider until I saw this thread.

On my T-mobile Edge i was getting Wifi drop outs every minute or so.
I am getting a replacement tomorrow and I will report back.
here is what my battery stats looked like
https://dl.dropboxusercontent.com/u/28335306/tempFileForShare_2014-11-21-08-19-24.jpg

Firmware.....
Its a Firmware issue
Guys I am almost positive this issue is due to a glitch in Samsungs firmware. I tested the data and was able to download over 1 megabyte per second with only one bar on 4g Spark LTE.
According to the tech support person I talked to that would not be possible on only 1 bar. (btw I stopped the test after hitting 1 Megabyte per second for those that need help converting that equals 8mbps). I was in a saturated 4g Spark network with 5 towers within spitting distance from my location and it still only showed 1 bar. I'm thinking either how the tower reads the signal strength or a bad code line shows no more then 1 bar no matter what.
Now for those having dropped data. Check the Sprint {if you are on Sprint or your providers site for a similar coverage map) site to see the saturation for 4g Spark service, the phones are now setup to LOCK on and HOLD onto the FASTEST tower, which according to the tech who also filled me in on the way the new antennas work, can lead to what seems to be dropped service. She would recommend for individuals having this issue if Spark service is not fully activated in your area to switch over to CDMA only under settings to fix the LTE data dropping issue. BTW the Spark LTE service is apparently different then the old LTE service so those versions do not appear to work interchangeably (according to the Sprint service map). I'm assuming this new triband lte is new for all the carriers but maybe not...
I also noticed someone else got the new version of the firmware, which I also have and that did NOT fix anything for me. If anyone is struggling with this issue I would wait until the firmware is updated again. WHICH I hope by that point we can get flashable firmware for those of us that are rooted...???
Now for a VERY Important Fact: there will now be no way to use data while on a phone call. These phones are a single antenna model. You can either be on the phone or data... UNLESS you are making a WiFi call. That is why this is now a option. It will keep the antenna set to the data side of things and make it possible to use data for the internet at the same time.
I hope this helps.
Adan

alhadee12 said:
Have anyone experienced data connection issues on the AT&T variant, some of my apps like Craigslist won't open, but it will on other devices?
Click to expand...
Click to collapse
http://blog.craigslist.org/2014/11/24/craigslist-dns-outage/

Thank you for the info. I agree it has to be a firmware issue. I am getting a replacement handset tomorrow to verify that but I can see all these hansets being bad. I am in areas all day long with strong lte/spark/and 3g but my data connection constantly drops. I do also see the cellular signal shooting up and down but have no issues with my call quality at least. Have to reboot...toggle airplane mode....or shut data off and on just to get a little bit of 3g service for a second or two. I really hope the firmware update comes soon. I also went under networks in setting and set it to CDMA only and it as at least seeming to give me a steady 3g connection for now...will reply if that changes

signal
I had the note 4 for 3 weeks before giving it to my wife and getting the edge....the note 4 in all my normal travel was perfect....now with the edge i have horrible data so its something i hope they update quickly

I don't rely on the stock signal bars, they are not really reliable in my opinion. Instead if you install SignalCheck Lte or SignalCheck Pro (for those that are rooted) from the play store. It accurately shows the true signal strength of your connection.
I like the Pro version since it allows to reset the connection quickly if need be.
TS

Cellular Signal Constantly drops to no bars - UK - giffgaff SIM installed

Hi fellow Honor8 owners,
I have UK Honor 8 32GB model purchased from Vmall.eu/uk. I came from an iPhone 5S and must say I'm loving the device!
Only issue I have been having is constantly, the Data signal keeps dropping out and I am unable to recieve/send calls and texts. It completely drops out for a bit then comes back. This happens very often.
Is anyone else experiencing any similar issues? I have the nano SIM installed into SIM slot 1 .
I will maybe give the SIM a clean and reseat it into tray to see if there is any difference.
otherwise aside from that issue it's been amazing! One thing I'm really impressed is with battery, I am getting like 6 Hours Screen On Time on each cycle! and I'm not such a light user. Great for £260 unlocked!!
:good:

I also have giffgaff. This also happens to me mostly at home. I disabled Carrier Aggregation which seems to help, but it still happens sometimes.

I have the same and set the signal to be 2g only while at home, as I am using home wifi. I get many more bars when I do that and its good for calls and text only of course.
Its a pity we are not able to activity switch mobile data modes depending on our location without rooting.

scoobydu said:
I have the same and set the signal to be 2g only while at home, as I am using home wifi. I get many more bars when I do that and its good for calls and text only of course.
Its a pity we are not able to activity switch mobile data modes depending on our location without rooting.
Click to expand...
Click to collapse
So I tried cleaning and blowing in sim slot maybe debri but no still had the same issue. But then changed to carrier aggregation off, that helped a bit but still had issue often.
Finally resorted to switching to 2G for Calls and SMS only and I am mainly getting full signal strength all the time!
strange.. wonder if it is hardware issue or can be fixed via update?