Database Users

Network dies when I turn off 2g

Anyone have this problem? It happens ever time
Sent from my T-Mobile G2 using XDA App

Hmm.... seems like your phone might be in WCDMA mode only... It should be in WCDMA-Preferred since you plan on using 3G and 2G
Go to your phone dialer and dial *#*#4636#*#*
and Diagnostics Menu should come up..... Go to PHONE INFORMATION.... Scroll down and Set Network Type to: WCDMA Preferred
see if that helps...

Thanks for the reply i am on tmobile and it is defaulted to GSM. Will changing it be any different than GSM?

my phone does that as well right now at home even though i have it on WCDMA preferred, t-mo has been having issues with their 4G towers and their DNS servers lately that has been affecting many people with newer phones/SIM cards and in 4G areas, t-mo has not released an ETA on a fix but i have been dealing with it for a month now at my home and i am about ready to switch carriers

tvdang7 said:
Thanks for the reply i am on tmobile and it is defaulted to GSM. Will changing it be any different than GSM?
Click to expand...
Click to collapse
Nope, it'll still be the same. WCDMA-Preferred means that then phone will Prioritize 3G/4G signal over an EDGE signal. So If you are in a decent 4G/3G coverage the phone will set itself into 3G/4G mode... and when you move into an area where you have a weaker 3G/4G signal...t han the phone will be in EDGE mode.

Keep in mind that if you're referring about using WCDMA Preferred in a 3G/4G coverage area - but only 2G works - then you have a network issue. This isn't so much a device issue as it is a MSISDN issue on the network or a potential tower issue.
If you get no signal on 3G/4G and signal is there on 2G - check your coverage first - then if coverage shows you should have 3G/4G, call TMO and let them know, they'll need to do a service request or trouble ticket based on the location and breadth of the issue you're having.

[Q] Defy, AT&T EDGE only

I have an unlocked Defy from T-Mobile USA that I'm using with my AT&T service, but I'm only getting EDGE wherever I go, no UMTS at all, and I've even heard of people getting it to run on HSPA bands. I know already that HSPA is available everywhere from my home to my workplace, thanks to my Atrix 4G. I've rooted the Defy and it's running Cyanogenmod 7 latest. Any help would be greatly appreciated, as I can find nothing on this forum or on Google to remedy the issue.

You should try to change the freq via baseband switcher.And restart.
Maybe you got the "2g only" checked in networks settings..uncheck that.
Settings >Wireless & networks > Mobile networks
You can also put automatic(2G and 3G) mode in GSM/UMTS network preferences.

Thanks for the reply Viper. I just noticed the baseband is set to some central Europe nonsense. Should I change it to one of the T-Mobile USA band settings? There's nothing there for AT&T.
Edit: I changed the baseband to US T-Mobile 3.Something, whichever was latest. 2G only was not checked. I'm still getting 2G only. Could it be my APN settings? Could I copy the APNs from my Atrix?

I'm having a problem with my AT&T connection as well, but I've been using my phone unlocked on the network since March with no problem. I'm new to modding, but OCD about streamlining my electronics. My friend suggested rooting my device and flashing a new ROM. I decided on stock Nordic Froyo, and it makes me so happy not to see all the T-mobile crap in my apps tray.
BUT the collateral damage is not so hot. I have no 3g or even 2g connection anymore. I tried the fix in this thread http://forum.xda-developers.com/showthread.php?t=944258 and was able to get a signal with 4 bars instead of the previous state of emergency calls only, but no letters like E or 3g and no ability to use the internet/transfer data. I also installed the broadband switcher in this thread http://forum.xda-developers.com/showthread.php?t=1052745 and tried all of the T-mobile US bands. No luck. I did rest the APN to default. No change. I've been using wifi, but will have to go back to work soon. Not having access to the smart part of my smartphone will feel sort of like having an arm cut off.
I'm not sure what to do next. I could try flashing another ROM, but from what I've read in the forums, that's no guarantee.
If anyone has any suggestions to help a noob, I'd be forever grateful.
Thanks in advance!

Thanks for the link, halah. Do I apply this as an update.zip from recovery? Or install?
Never mind, it won't work for me, for whatever reason.

[Q] LTE signal drop

Hey I've tried searching for a thread for my problem but didn't find anything so here it goes;
Still on the old radio, whenever I choose "LTE Only" on Phone Info. I get good signal (4G logo) for about half an hour, and then I notice a complete drop in signal. The phone simply doesn't work; no calls, no data, no sms...
Anyone familiar with this issue? Weirdly on the WCDMA signal I never have a signal drop (H+).
Basically I've never been successful in getting consistent LTE signal for an entire day since the purchase of this phone. Anyone know of a fix?
I'm on Telus in Canada so APN settings are the same as regular HSPA+
Thanks!

Bump. Any help or pointers would be highly appreciated!
Sent from my Nexus 4 using xda app-developers app

Use the LTE/GSM auto setting. LTE Only will only rely on a strong LTE signal, and not drop down to any of the other networks if it needs to. I use LTE/GSM auto and haven't had any problems with losing connection. It switches down from LTE to H+ when it needs to.

Maybe your carrier decided to cut off support for lte on nexus 4?
You could try reflashing the radio to see if it cures your problem.

What provinces are you guys in? Im trying to get LTE to work on my Nexus in Calgary and not having any luck so far. When i switch the the LTE/GSM signal nothing happens. Is there any other radio flashes that need to be performed to get the LTE signal.
Checked with Telus already, the V3 sim cards can do LTE.

[Q] Bizarre signal issue (AT&T)

So my fiance's Nexus 4 is having a weird signal issue where she works. I have had her try different settings and this is what she's seeing:
WCDMA preferred: No signal at all
GSM auto (prl): No signal at all
GSM only: She gets Edge or "G" and 4 bars
So here's the thing - my understanding is that WCDMA preferred and GSM auto (PRL) will use both 2G and 3G with slight differences (WCDMA prefers 3G, GSM auto (PRL) prefers 2G). She is not getting 2G or 3G with either of these. If she uses GSM only she gets a 2G signal.
Anyone have any idea what's up? This doesn't seem normal to me. It was working correctly before, then when she had issues she called and they told her that they were doing some work on the tower near her - but they claim that it's been fixed.

kimboinatl said:
So my fiance's Nexus 4 is having a weird signal issue where she works. I have had her try different settings and this is what she's seeing:
WCDMA preferred: No signal at all
GSM auto (prl): No signal at all
GSM only: She gets Edge or "G" and 4 bars
So here's the thing - my understanding is that WCDMA preferred and GSM auto (PRL) will use both 2G and 3G with slight differences (WCDMA prefers 3G, GSM auto (PRL) prefers 2G). She is not getting 2G or 3G with either of these. If she uses GSM only she gets a 2G signal.
Anyone have any idea what's up? This doesn't seem normal to me. It was working correctly before, then when she had issues she called and they told her that they were doing some work on the tower near her - but they claim that it's been fixed.
Click to expand...
Click to collapse
do you have the correct apn for att? you would have to enter the apn in manually. main settings, more, mobile networks, access point names. by default, it comes ready for tmobiles network out of the box, but you would have to set up the apn for att(which is why you would get a 2g/g signal).

simms22 said:
do you have the correct apn for att? you would have to enter the apn in manually. main settings, more, mobile networks, access point names. by default, it comes ready for tmobiles network out of the box, but you would have to set up the apn for att(which is why you would get a 2g/g signal).
Click to expand...
Click to collapse
I totally didn't think about the APN settings - mostly because she's getting HSPA+ here at the house. I set it up using the new AT&T APN, we'll see how it goes. Thanks a bunch!

Guide to get 4G LTE Total Wireless ( Verizon ) with 3G issue

First you need to make sure your APN settings are correct.
With my service I had to change that APN to tracphone.vzwentp and that got my 3G service.
After that Dial *#*#4636#*#* for phone testing
Go into * Phone information *
Then down to * Set preferred network type * and set it to * LTE/CDMA auto (PRL) *
This helped give me 4G LTE
And or you need to change the preferred network under cellular network settings to LTE/CDMA
First post so let me know if I need to change anything thanks
So apparently when I changed the band over to USA Band it gave me LTE. The calling worked for around two days and then just stopped working but I still had LTE.
Once I changed the Band back over to Cellular it gave me calling and txt back. I can switch it back and forth to get either 3G or 4G.
I'm hoping that with the new Nougat update it will fix this issue but for now if your calling and LTE work for you on USA Band more power too you.
If the Nougat update doesn't fix this issue I'm going back to Straight Talk AT&T where I had 4G LTE, Talk, and TXT
Motorola Moto G4 XT1625
Total Wireless (Verizon Network)
Android 6.0.1

What 4g speeds are you getting? Hear Verizon mvno are capped at 5mbps

brownd7380 said:
What 4g speeds are you getting? Hear Verizon mvno are capped at 5mbps
Click to expand...
Click to collapse
I only get 5.4mbps down and 2.3mbps up so far.
I'm headed to California in two weeks where I wanted to test it.
Before when I was a Verizon customer I got 65mbps down so I'll see if it's different there too.

It's possible it is throttled. I have Net10 and using the CDMA option because Verizon has awesome signal where I live compared to att. Att did have higher speed rates on LTE but 5mpbs is more than enough for what I need and what anyone should need.

All Verizon MVNOs are throttled to ~5Mbps down, ~2Mbps up. Only Verizon Prepaid proper and Verizon Postpaid are unthrottled.

Hi there, your guide helped me get on LTE. Thank you!
United States band option is located in the 3 dots in the upper right hand corner.

So why in the world is it that these MVNOs recognize this phone straight away using the verizon network, but through VZW I can only get 3G? This is infuriating! I set up several of these for friends on prepaid networks and they all worked straight away with 4G. Finally added our son to our VZW plan so he could use his phone as an actual phone and it's stuck in 3G hell.

I'm on an MNVO using Verizon's network and it defaulted to 3G. I had to do this to get on 4G. I've lost the ability to make phone calls though, so I'm using hangouts for that function.
I can confirm that regular calling does not function on 4G LTE so like the OP, I am having to switch back and forth on Automatic and United States which is aggrivating.

I hope this helps someone:
I have LineageOS 14 nightly installed on this phone. I was going to return it because I was tired of dealing with the switch to make calls.
I figured out that my baseband wasn't the latest, so I figured one final nuclear option of flashing the stock back on to the device would potentially help this.
After a long bout with a soft bricked phone, I managed to get the phone to flash back to stock Amazon adz and then take an OTA. My baseband changed from x45R to x62R.
I then reflashed TWRP and LineageOS 14. It still didn't work but I played around with the settings and managed to get it working. You have to set the Radio Band to Automatic and then you'll get LTE data and CDMA voice. Preferred network type in Mobile network settings is LTE / CDMA. FYI The settings may reset after a reboot.