Develop Bugs

Data issues

Seems like my phone is fluctuating on edge and 4G signals ways too much as compared to other phone I had on the network.
Is it me or others are having the same issue as well
Sent from my SGH-T999 using xda app-developers app

vikramdhani said:
Seems like my phone is fluctuating on edge and 4G signals ways too much as compared to other phone I had on the network.
Is it me or others are having the same issue as well
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
I do too. Pisses me off. It does it in full 4g areas too. Also, it drops data connection. Was trying to watch the Olympics earlier and it kept kicking off data. :banghead:
Sent from my SGH-T999

same plus
vikramdhani said:
Seems like my phone is fluctuating on edge and 4G signals​ ways too much as compared to other phone I had on the network.
Is it me or others are having the same issue as well
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
Me too plus crazy force restarts about three a day

vikramdhani said:
Seems like my phone is fluctuating on edge and 4G signals ways too much as compared to other phone I had on the network.
Is it me or others are having the same issue as well
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
Your not the only one
http://forum.xda-developers.com/showthread.php?t=1759785
http://forum.xda-developers.com/showthread.php?t=1756280
If you want to stay just on 4g and eliminate the phone going edge completely, you can dial *#*#4636#*#* or download an app called "phone info", select Device Information", then halfway down there's a dropdown (currently on GSM auto). Select WCDMA only.
There's also a new radio if you don't already have it that is supposed to be better at holding on to 4g longer
http://forum.xda-developers.com/showthread.php?t=1825112

i thought i was the only one. talked to tmobile and got a replacement. it still does it on occasion. One thing i did was to change the APN of the phone to a known T-Mobile alternate. it seems to have fixed the issue. if you change your APN to these settings, no more drops, and no more high ping issues.
Name : T-Mobile US 2
APN : internet2.voicestream.com
Proxy : not set
Port : not set
User name : not set
Password : not set
Server : not set
MMSC : http://mms.msg.eng.t-mobile.com/mms/wapenc
MMS proxy : not set
MMS port : not set
MCC : 310
MNC : 260
Authentication type : not set
APN type : default,mms,supl
APN protocol : IPv4
Enable/disable APN : APN enabled
Bearer : Unspecified
those settings were for my old unlocked iphone. same speeds, lower ping, no more drops.

aznmode said:
Your not the only one
http://forum.xda-developers.com/showthread.php?t=1759785
http://forum.xda-developers.com/showthread.php?t=1756280
If you want to stay just on 4g and eliminate the phone going edge completely, you can dial *#*#4636#*#* or download an app called "phone info", select Device Information", then halfway down there's a dropdown (currently on GSM auto). Select WCDMA only.
There's also a new radio if you don't already have it that is supposed to be better at holding on to 4g longer
http://forum.xda-developers.com/showthread.php?t=1825112
Click to expand...
Click to collapse
Thanks i will try the new radio and i was wondering if there a way i can cancel the all time 4G mode if i dont need it ?

vikramdhani said:
Thanks i will try the new radio and i was wondering if there a way i can cancel the all time 4G mode if i dont need it ?
Click to expand...
Click to collapse
Just change it back to GSM auto(default) or WCDMA preferred.
Sent from my SGH-T999 using Tapatalk 2

Disable lte and force HSDPA on aosp

Hello i am enduring the hurricane and I lost power, peco statement says it could be out for days. I really need to disable lte so I can get data without killing my battery. I already burned a good amount of my battery searching on how to do this but couldn't find anything yet
I'm on aosp so dialing *#2263*# does nothing.
When I try selecting my old HSDPA APN (att) it won't connect to anything. And I when I switch my network mode in data settings it just won't let me select wcdma.
Seriously I need a miracle. I don't have much juice left.. if I don't make it.... send help
Jk I'm not flooded or anything lol i just need internet.

Dial *#*#4636#*#* and choose wcdma preferred.

This doesn't work for me. It just pops right back to lte. I'm on tasks aokp.
Sent from my SGH-I747 using xda app-developers app

Settings>Wireless 7 Networks (More...)>MobileNetworks>Network Type> Choose the one without HSPA one without LTE. Should say something like GSM/HSPA. If this doesn't work then you will need to try something else...

Under those settings I have lte/gsm/wcdma and gsm/wcdma.
I can't switch off the lte one. It just goes back. There is another setting "use 2g networks only" and this also does not work. I am using tasks latest aokp ROM and toonz latest kernel. Maybe i should try another radio?
Using uclh9 radio.
Sent from my SGH-I747 using xda app-developers app

Bump. Does anybody know how I can disable LTE? Tried both methods in this post and i can't disable it.

To do this you also have to set the phone and mms APN. I rememebr a few times on my Note getting it to switch and stay after switching APNs to phone then choosing wCDMA otherwise it just goes back to LTE. PTA will lock you to LTE. Also it may lock to LTE in the radio load.

shansmi said:
To do this you also have to set the phone and mms APN. I rememebr a few times on my Note getting it to switch and stay after switching APNs to phone then choosing wCDMA otherwise it just goes back to LTE. PTA will lock you to LTE. Also it may lock to LTE in the radio load.
Click to expand...
Click to collapse
Where can I set the MMS APN?
Changing my APN to wap.cingular won't connect to anything. I'm not 100% sure but I could of sworn I used to be able to just select the wap.cingular and it would connect to hspa. Not sure what happened mabey at&t cracking down

jefferson9 said:
Where can I set the MMS APN?
Changing my APN to wap.cingular won't connect to anything. I'm not 100% sure but I could of sworn I used to be able to just select the wap.cingular and it would connect to hspa. Not sure what happened mabey at&t cracking down
Click to expand...
Click to collapse
To change the APN you go to settings > under network click "more" > click Mobile Networks > Access Point Names
But you need to know the APN Settings. Idk what they are for no LTE.
And I have same issue, select wap.cingular and I get no data

geoldr said:
To change the APN you go to settings > under network click "more" > click Mobile Networks > Access Point Names
But you need to know the APN Settings. Idk what they are for no LTE.
And I have same issue, select wap.cingular and I get no data
Click to expand...
Click to collapse
Wap Cingular is the no lte apn, but like you've found out its not working anymore for some people. Works for me, but my hsdpa is one quarter its normal speed.
Sent from my SGH-I747 using Tapatalk 2

jefferson9 said:
Hello i am enduring the hurricane and I lost power, peco statement says it could be out for days. I really need to disable lte so I can get data without killing my battery. I already burned a good amount of my battery searching on how to do this but couldn't find anything yet
I'm on aosp so dialing *#2263*# does nothing.
When I try selecting my old HSDPA APN (att) it won't connect to anything. And I when I switch my network mode in data settings it just won't let me select wcdma.
Seriously I need a miracle. I don't have much juice left.. if I don't make it.... send help
Jk I'm not flooded or anything lol i just need internet.
Click to expand...
Click to collapse
How do I turn lte back on after dialing that? Redialing it does nothing.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

xavierpunkreno said:
How do I turn lte back on after dialing that? Redialing it does nothing.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Hey guys, if you would like the correct HSPA+ APN to switch to on AT&T, please see my signature and use the APN in the OP of my thread.

[Q] LTE Lost

Hello all, I'll be as brief as possible.
Bought Bell ZL C6506 bootloader cannot be unlocked, Unlocked carrier, used with Fido.
Everything worked perfectly, hated Bell Bloatware, tried to root with Binary nothing happened.
Flashed generic us firmware using flashtools > no LTE and loss reception here and there
Updated multiple times with PC companion/update service, fixed reception a little, still no LTE. 3G works though.
Any suggestions? It's obviously the generic us firmware that messed it up but it was for the c6506..
PS. Awesome phone, crappy screen > even my xperia S looks better but I'm happy overall

Are you using the correct APN for LTE?

papped said:
Are you using the correct APN for LTE?
Click to expand...
Click to collapse
Yes, I've confirmed with fido. Tried 2 different APN's.

moeali77 said:
Yes, I've confirmed with fido. Tried 2 different APN's.
Click to expand...
Click to collapse
So if you are with Fido, you do use ltemobile.apn as the APN setting (its the same as Rogers).
And if so, have you checked the "Phone Information" by typing *#*#4636#*#*
You should be able to select the band. Try using LTE only to see if it picks it up. Maybe yours is defaulted with "WCDMA preferred".
I'm with Rogers and it is by default at LTE/GSM auto (PRL). This is on FW. 244 if it makes a difference.
Did it ever work in the past, was a different baseband flashed on it in the past for whatever reason?
If you had an xperia S in the past and had data, you were using 3G and H+. The Xperia S didn't support LTE. Did you get the SIM card compatible with LTE?

Crash338 said:
So if you are with Fido, you do use ltemobile.apn as the APN setting (its the same as Rogers).
And if so, have you checked the "Phone Information" by typing *#*#4636#*#*
You should be able to select the band. Try using LTE only to see if it picks it up. Maybe yours is defaulted with "WCDMA preferred".
I'm with Rogers and it is by default at LTE/GSM auto (PRL). This is on FW. 244 if it makes a difference.
Did it ever work in the past, was a different baseband flashed on it in the past for whatever reason?
If you had an xperia S in the past and had data, you were using 3G and H+. The Xperia S didn't support LTE. Did you get the SIM card compatible with LTE?
Click to expand...
Click to collapse
The apn setting is exactly that; ltemobile.apn
My sim card is LTE ready.
I have already tried going to "testing menu", but will try again as I'm typing.
Last time LTE only would just lose reception entirely (no bars, red x)
I switched LTE/GSM auto (PRL) to LTE only.
This time, it went to zero bars. I turned on Mobile Data and LTE showed up on the status bar. I tested this on a couple of websites and they loaded up quickly. Now If turn off mobile data, reception would return to 4/5 bars.
Maybe the baseband was changed..
I don't why the reception is 0/1 bar(s). Anyways LTE now works so that's an improvment, Thanks.

Flashed darthstalker and now I can't get LTE signal.

This seems to be the only issue. Do I need to change some settings somewhere after flashing or should I just try to reflash the whole thing.

ramethorne said:
This seems to be the only issue. Do I need to change some settings somewhere after flashing or should I just try to reflash the whole thing.
Click to expand...
Click to collapse
Look in your APN settings.

Settings, more, mobile networks, access point names, make sure apn is fast.t-mobile.com
Sent from my SM-N900T using Tapatalk 4

AdmiralCF420 said:
Look in your APN settings.
Click to expand...
Click to collapse
T-mobile lte is selected and the settings are filled out. What could have caused the lte to stop working? It doesn't seem to matter what I do.

When I flashed it, network mode was set to 4G. Changed it back to LTE and got back my LTE.
Settings>More>Mobile Networks>Network Mode
Sent from my SM-N900T using Tapatalk now Free

Ok I am back on the stock rom and I am still stuck on the edge network and my apn settings are greyed out but look ok. The network mode is on lte/wcdma/gsm and the status bar says 4g but I have no signal bars and extremely slow spped unless I am on wifi. I can get calls and texts though. Anything else important to solve this?

Sorry for double post but my imei number is 15 digits long if that matters.

LTE GONE
Bump... Having the same problem! Tried everything with respect to network mode, APNs, *#2263# and flashing different roms.
Although it worked at first, LTE disappeared on me out of the blue. Any ideas?

[Q] ATT signal troubles on H815 US

I purchased my phone (h815 US model) online from swappa and I love the feel and look of the phone, Love the camera, BUT my phone wants to stay on hspa all the time. Where i had 3 or 4 bars on my s5 active I get HSPA unless I go in to settings and sellect ATT:LTE from network operators which only last until my phone goes to sleep then im back on hspa. Anyone else experiencing this? Or anything i should try? Thanks in advance for any help!

Bumpers just in case someone who knows didn't see it. Sorry won't bump it again!

Craleb said:
Bumpers just in case someone who knows didn't see it. Sorry won't bump it again!
Click to expand...
Click to collapse
Maybe with hidden menu access via dialer,you can permanently enabled it...I don't know the actual code that might work for your device..but you can find it through here..In general threads maybe

I had to set the proper APNs on my H815, additionally I had to tell it to use GSM/WCDMA/LTE Auto under Network Mode in the Mobile Networks settings.
AT&T APN settings
www.att.com/esupport/article.jsp?sid=KB424489&cv=820
Pic of Mobile Networks
http://imgur.com/UtrfVUZ
After that, it's been using LTE where available.

Daptonic said:
I had to set the proper APNs on my H815, additionally I had to tell it to use GSM/WCDMA/LTE Auto under Network Mode in the Mobile Networks settings.
AT&T APN settings
www.att.com/esupport/article.jsp?sid=KB424489&cv=820
Pic of Mobile Networks
http://imgur.com/UtrfVUZ
After that, it's been using LTE where available.
Click to expand...
Click to collapse
Thank you @Daptonic . I was attempting to use the "ATT nxtgenphone" APN because it works better on ATT devices but I guess the ATT Phone APN is needed for non ATT devices. Rebooted phone and it went straight to 4g. Thanks for responding.
Edit: dammit, it went back to hspa again......