Develop Bugs

4g lte not working

I am running the latest cm10 nightly and I haven't been able to connect to 4g lte for the last week or two. Is anyone else having this problem? Has anyone found a solution?
Sent from my SPH-L710 using xda premium

Which market are you in? There's a chance that the tower was only on for testing and has since been turned off. There's also a chance that another tower closer to you is currently being upgraded, so the phone is trying to connect to that tower's LTE, getting rejected, and falling back to 3G. That's what's happening to me, and it's frustrating because I had a steady 4G signal for a week and a half, then one day, it refused to stay connected to 4G for longer than a minute. Now, I just have to wait for them to finish the new tower.
The reason could be just about anything depending on your market.

I am in the Atlanta market which has been officially announced. Friends that live nearby have not been having this problem on stock ux software. I was wondering if cm10 has a big or something?
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HappyDuck13 said:
I am in the Atlanta market which has been officially announced. Friends that live nearby have not been having this problem on stock ux software. I was wondering if cm10 has a big or something?
Sent from my SPH-L710 using xda premium
Click to expand...
Click to collapse
Actually, it has a couple LTE bugs. CM10 doesn't currently handle 3G/4G handoffs properly, so that could be part of the issue, but it holds a 4G connection fine if the signal is strong enough, at least from my experience. Another bug is that it will just stop making connections, and you have to wipe data to fix it. Have you tried toggling airplane mode? If that doesn't work, make a nandroid and try a clean install of CM10. I had to do that recently because it completely stopped connecting to 4G and barely connected to 3G. As soon as I booted up, 4G was back (didn't last long, but I explained that in my other post). If wiping data doesn't work, flash to TW and see if the problem persists. If it still doesn't connect, then you may have a hardware issue, but I think that's unlikely since it was working for you before. You never know, though.
Keep in mind, even though Atlanta's been officially launched, it's only about one third complete, so lots of towers are still being upgraded. It's possible you're facing the second issue in my first post, like I am. If so, then just concentrate on how much better it'll be when the new tower is finished.

EndlessDissent said:
Another bug is that it will just stop making connections, and you have to wipe data to fix it. Have you tried toggling airplane mode? If that doesn't work, make a nandroid and try a clean install of CM10. I had to do that recently because it completely stopped connecting to 4G and barely connected to 3G. As soon as I booted up, 4G was back (didn't last long, but I explained that in my other post).
Click to expand...
Click to collapse
Happened to me several times. The best thing you can do is make a nandroid once you get your favorite AOSP rom set up to your liking, and restore to it once LTE stops working. I tried to get myself to go to TW but its just so slow

What is TW?
Sent from my SPH-L710 using xda premium

TouchWiz

I have a similar issue. If i go into settings, about phone, and status I pick up LTE:13, but I get no connection or IP address so I have to change over to 3g. Is this a known issue, and if so is it being addressed? I am currently running nightly 10-14-2012 if it helps. Thanks
Edit: I've tried TW and it works just fine there. 14 down and 6 up.

Its likely to do with cm10. And the handoff issue like it was explained a few posts back. I love cm10 but data would work if u was lucky for 2 hours out of the whole day. So I'm on the leaked lih build. Just gotta wait patiently for the great devs to figure it out.
Sent from my SPH-L710 using Tapatalk 2

Is there an issue with broken Lte after rooting like with wimax and evo?
Even if you are running the stock rom?
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No, not that I've heard about. You should be safe.

What about Google wallet breaking? Thanks
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eyecon82 said:
What about Google wallet breaking? Thanks
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Click to expand...
Click to collapse
Never heard of that happening, either.

[Q] Is this blocked IMEI on my Note 2? im confused :(

Im a little confused and im wondering if someone can help me out or if someone is going through the same thing i am.... :crying::crying::crying:
So i just got a Galaxy Note 2 from my fathers friend at work and i am wondering is this considered when they say being a blocked IMEI cause its a little confusing...
So I have T-Mobile and i received the Note 2 it is not rooted or anything and the IMEI matches the same in the "About Device" and in the back behind the battery so anyways i go and pop my micro sim card in and notice right away it gets no service it just has a circle with a horizontal line accross like seen on the pics and the lock screen just says "Searching".. i go into mobile networks and try to manually select the T-mobile network and it just gets stuck on "Registering to T-Mobile" then i get an error in my notifications that says "No Service Selected Network (T-Mobile) not available" so right away im assuming that the IMEI must be bad so i call T-Mobile give them the IMEI and they tell me its NOT blocked so now it gets confusing.
while i was still messing with it i decided to turn ON wi-fi and all of a sudden the wi-fi calling feature turns on and viola! the circle with the horizontal line changes to empty service bars and in the notifications dropdown it now says T-Mobile so i go on and make a call IT WORKS! send a text IT WORKS receive calls and texts ALSO WORK! now isnt that wierd?
what do you guys think might be wrong with the phone is the IMEI really blocked but if it is will i be able to make calls and send and receive texts i dont understand please some one help me any advice will be appreciated.. :fingers-crossed:
Thanks (here are pics of screen shots)

Try switching the phone to 2g only ! *#*#4636#*#*.
MIGHT BE signal problem in your area
Sent from my iPad using Tapatalk HD

I actually tried that and it dont work..... but now something wierd happened... it start working good In certain areas and then it cuts off
Sent from my SGH-T889 using xda premium

Try calling tmobile with a differnt phone.
Sent from my SGH-T889 using xda app-developers app

Generally, when your IMEI is blocked, you'll have bars and even data. Your phone just won't work. So I doubt it's that. The fact that WiFi calling works tells me that the SIM reader works. Do you know if the phone was taken apart? Maybe the antenna is messed up. Id just try going somewhere else to use your phone and try.
Possibly root and flash different modem?
Sent from my SGH-T889 using xda app-developers app

You_got_owned123 said:
Generally, when your IMEI is blocked, you'll have bars and even data. Your phone just won't work. So I doubt it's that. The fact that WiFi calling works tells me that the SIM reader works. Do you know if the phone was taken apart? Maybe the antenna is messed up. Id just try going somewhere else to use your phone and try.
Possibly root and flash different modem?
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
The sim card reader does work cause sometimes out of the blues the phone will register on the network and im able to use it fully as it should and then it goes back to having the little circle with a line accross it.... today it behaved preety good it gave me a good amount of time of usage but it would still randomly cut off and come back on..... as far as being opened im starting to think it maybe was opened or something cause it doesnt have the "VOID" sticker on the screw in the back like it should..... and maybe what u said about flashing a different modem how can I check what modem I have now?? Cause the phone was rooted and had a custom rom but I restored it back to stock with Odin not sure if doing that will restore the stock modem or not.
Thanks for all your help :thumbup:
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DROID_ROCKS_IFONE said:
The sim card reader does work cause sometimes out of the blues the phone will register on the network and im able to use it fully as it should and then it goes back to having the little circle with a line accross it.... today it behaved preety good it gave me a good amount of time of usage but it would still randomly cut off and come back on..... as far as being opened im starting to think it maybe was opened or something cause it doesnt have the "VOID" sticker on the screw in the back like it should..... and maybe what u said about flashing a different modem how can I check what modem I have now?? Cause the phone was rooted and had a custom rom but I restored it back to stock with Odin not sure if doing that will restore the stock modem or not.
Thanks for all your help :thumbup:
Sent from my SGH-T889 using xda premium
Click to expand...
Click to collapse
I don't think there actually is a void sticker.. When I opened mine up, I didn't find one . I could have just over looked it possibly. Just try flashing JediM14. Comes with everything you need much better than stock. I'm thinking maybe tmobile is working on your area so you have intermittent service. Could be anything. I'll try to help you look into it. The sticky for the modem, ,facotry img and such is in android development. I think the sticky thread is in top three. It's obvious
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When you odin flashed back to stock did you then run all available ota's?
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moto211 said:
When you odin flashed back to stock did you then run all available ota's?
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Click to collapse
Yea I tried that and it said there was no available updates.... im currently running build JZO54K.T889UVBMB4 is that the latest one??
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You_got_owned123 said:
Just try flashing JediM14. Comes with everything you need much better than stock. I'm thinking maybe tmobile is working on your area so you have intermittent service. Could be anything. I'll try to help you look into it. The sticky for the modem, ,facotry img and such is in android development.
Click to expand...
Click to collapse
Does that rom JediM14 flash a different modem when I flash it..... and ive heard about the canadian T889v modem will that work on my phone? Excuse the noob question im not that experienced in this so dont wanna brick my phone or anything
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DROID_ROCKS_IFONE said:
Does that rom JediM14 flash a different modem when I flash it..... and ive heard about the canadian T889v modem will that work on my phone? Excuse the noob question im not that experienced in this so dont wanna brick my phone or anything
Sent from my SGH-T889 using xda premium
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Click to collapse
im having same issue but i can actually make calls and get text, the data side isnt working , sometimes it kicks in but its more on no data than on
im calling for a replacement tomorrow this was a replacement from a bad usb port phone i sent 2 days ago , tried everything and i know its not network cuz everyone in my house has t mobile . hope you figure it out as i gave up

JediM14 comes with the new MD1 firmware. Everything is for Tmobile. During installation, I think aroma gives you options for modem..not completely sure . but if you have tmobile, I'd stick with tmobile modem. Does anyone else have tmobile at your house you can compare signal to?
Sent from my SGH-T889 using xda app-developers app

JediM14 comes with the new MD1 firmware. Everything is for Tmobile. During installation, I think aroma gives you options for modem..not completely sure . but if you have tmobile, I'd stick with tmobile modem. Does anyone else have tmobile at your house you can compare signal to?
Sent from my SGH-T889 using xda app-developers app
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Click to collapse
I actually just updated to the OTA MD1 update and still the same and my wife has T-Mobile aswell she has an iphone 5 and she never looses service here, not too mention we get LTE already in our area but she always has full or almost full bars, as for me as im typing this now this is what mines looks like but yet yesterday in the night I was getting service and 4g LTE
Im starting to think maybe its a hardware problem with my cellular antenna cause my wi-fi antenna works just perfect or what else might it be?
Sent from my SGH-T889 using xda premium

As long as you're stock and unrooted, you might be able to get a warranty replacement. I know you're not the original owner but it really depends on the rep that you get on the phone. If you get the right rep they'll warranty it based on the fact that no matter who originally purchased the phone, there's no way it could be more than a year old. Or, if you have the premium handset protection, you should be able to get it covered under the extended warranty that it offers.
Sent from my SGH-T889 using xda premium

Call Tmobile and tell them your situation. They'll reset your connection to the towers and it might help. They've done that for me. Just ask for like a connection reset. Even better if you just told them what's happening.
Sent from my SGH-T889 using xda app-developers app

Could be antena problem. Had that happen to me with my skyrocket. The one end was not connecting to the right place. Somebody accidentally cut it off when I had the speaker fixed.

droidbabyxda said:
Could be antena problem. Had that happen to me with my skyrocket. The one end was not connecting to the right place. Somebody accidentally cut it off when I had the speaker fixed.
Click to expand...
Click to collapse
Could be this. I bought a replacement loudspeaker that was apparently for the T889 (which it wasn't)..[Most loudspeaker modules that say they are for the T889 are missing the third contact.] It was a missing a antenna contact which totally killed my reception. Try to take it apart and look at the loudspeaker. There should be three white tab looking things on the module itself. If there's only two, then that's most likely the problem.

HELP, no connection after flight from NC to TX

Hey all,
I could really use some advice. I live in North Carolina, my phone has worked just fine for over a year. Monday I went on a business trip to Dallas Texas and my phone won't connect to Voice or Data services at all. What can I do?
I tried turning airplane mode on and off, removing the battery, chatted with Sprint online, called the Support number. Sprint is NO help at all. They didn't outright tell me that my phone was broken, but practically did. I guess it just magically broke on the plane to Dallas??
Even in areas with good coverage, like my bars show good connection, I can't connect. I can hook to wifi just fine, but that is it. Sprint support told me that they can't even see where my phone has connected at all since I arrived in Texas.
Should I try flashing one of those PRLs from another thread? I'm not sure what to do. I assume that as is my phone will start working again when I get back to North Carolina though. I tried reflashing a "stock" rom and some of those "#" number calls, but none of them work since my phone isn't connected to any towers. Help!

Did u by chance try ##72786#? That's the hands free activation. Will turn ur phone off and should boot back up after a few seconds
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bigpappags3 said:
Did u by chance try ##72786#? That's the hands free activation. Will turn ur phone off and should boot back up after a few seconds
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
That is what is so strange, I can dial that number, even from a stock rom, and my phone doesn't do anything, it just sits on "dialing" then makes the hang up noise after 15 or so seconds.

That's definitely weird! I'm from this area so I know it's not the water...lol. Have u taken to an actual sprint store?
Sent from my SPH-L710 using xda app-developers app

bigpappags3 said:
That's definitely weird! I'm from this area so I know it's not the water...lol. Have u taken to an actual sprint store?
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
Not yet, since I'm here on business I don't have much time to do that, but honestly I don't think they would be able to do much more than the support person over the phone did. I'd have to unroot it and all of that before bringing it in, the folks in the store would try those ## type calls, wipe my phone and reset it, then probably tell me my phone is broken and try to sell me another phone, especially since I am eligible for an upgrade.
I don't want to actually buy a new phone until I get back to NC since I still think my phone will start working once I am back there, which would be just as confusing.
This is the same phone I brought here to Texas last October and it worked fine, so I don't know what exactly the issue could be.

Check ur messages
Sent from my SPH-L710 using xda app-developers app

If you are still having this issue I would suggest you try an app called Network Signal Refresher. It basicly updates your prl and profile by connecting you to the nearest tower
Sent from my SPH-L710 using XDA Premium 4 mobile app

Or try flashing another radio
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Spider_Pig27 said:
If you are still having this issue I would suggest you try an app called Network Signal Refresher. It basicly updates your prl and profile by connecting you to the nearest tower
Sent from my SPH-L710 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Thanks, I gave this a try, but it doesn't look like it worked. Part of the issueI think even for PRL updates is that my phone won't connect to the towers. Like with a Stock Rom in the Sprint Zone you can get to that section where you can do a Profile update and all of that, it always fails with a connection error. I gave that error message to Sprint support but they couldn't do anything with it. I will keep trying it though now and then.

IDontKnowMang said:
Or try flashing another radio
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
Is there a good updated guide for doing that? I did that on my EVO 4G, but never on the S3. I haven't looked yet but I will check into it this evening for sure.

They could be working on the towers in the area. When they did in my area, it showed I had bars but could not text or call. I would try flashing the 2 PRL, as it helped me get my phone working until they fixed it or in your case until you get Home. I can upload it if you need it.
------------------------
Sprint Galaxy S3
Stock - Whiplashh Rom - MIUI - Wicked Sensations
Hit that "Thanks" Button if I helped you!

official cyanogen 11 nightlies now available!

CM 11 nightlies (kitkat) are now available for download for the Sprint LG G2 LS980 from the cyanogen website.
Don't know how stable they are yet but gotta love having another rom to download and test!
http://download.cyanogenmod.org/?device=ls980
Known issues:
LTE/CDMA handoff
NFC ( can send files to another phone but can't read tags )
Google Hangouts video from front camera is flipped
Link to change log:
http://changelog.bbqdroid.org/#/ls980/next

In general g2 discussion a couple of people tried the first nightly and couldn't get it to boot
Sent from my LG-LS980 using xda app-developers app

Wowie! Official support? I'm quite surprised.

Yeah I can't even get that to flash and a lot of other people can't
Sent from my LG-LS980 using XDA Premium 4 mobile app

Up and running with philz custom cwm. http://forum.xda-developers.com/showthread.php?t=2554053

That's weird that's what I'm using
[edit] just saw there was an update to Philz, I'll try that
Sent from my LG-LS980 using XDA Premium 4 mobile app

kc3 said:
That's weird that's what I'm using
[edit] just saw there was an update to Philz, I'll try that
Sent from my LG-LS980 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I'm using the Dec 4th version I think. Also I turned off loki support since we don't need it.

jsteelm said:
Up and running with philz custom cwm. http://forum.xda-developers.com/showthread.php?t=2554053
Click to expand...
Click to collapse
you get phone/3g data? I can only get LTE on it.

riggsandroid said:
you get phone/3g data? I can only get LTE on it.
Click to expand...
Click to collapse
Oh to have your problem haha. Yes I have 3g on it. Sprint hasn't finished updating the Raleigh area, so I get spotty LTE. In fact, due to their handoff bug, I only get lte for a few seconds before it switches back to 3g (on previous roms)

jsteelm said:
Oh to have your problem haha. Yes I have 3g on it. Sprint hasn't finished updating the Raleigh area, so I get spotty LTE. In fact, due to their handoff bug, I only get lte for a few seconds before it switches back to 3g (on previous roms)
Click to expand...
Click to collapse
interesting. i can't get calls or sms to work.
makes it pretty much useless to me.
i wonder what the deal is...
UPDATE
used the pa gapps mini modular package and i was good to go. got sms and 3g, etc.
after about 15 mins of using, i lose it.
weird...

riggsandroid said:
interesting. i can't get calls or sms to work.
makes it pretty much useless to me.
i wonder what the deal is...
Click to expand...
Click to collapse
Which baseband you got? I doubt we have different ones, since the phone I think only has 2 modems out.
Edit: After looking at the post here http://forum.xda-developers.com/showthread.php?t=2451426 I don't know how to distinguish v7 and v8. Regardless, I highly doubt that's the issue.
Have you tried changing your Preferred network type? Mine is set to "Global" On occasion, I've seen Data enabled turned off seemingly spontaneously on other devices, sooo check that too
Here's mine (attachment):

They fixed the twrp script on the 12/11 nightly...should work now

jsteelm said:
Which baseband you got? I doubt we have different ones, since the phone I think only has 2 modems out.
Edit: After looking at the post here http://forum.xda-developers.com/showthread.php?t=2451426 I don't know how to distinguish v7 and v8. Regardless, I highly doubt that's the issue.
Have you tried changing your Preferred network type? Mine is set to "Global" On occasion, I've seen Data enabled turned off seemingly spontaneously on other devices, sooo check that too
Here's mine (attachment):
Click to expand...
Click to collapse
actually when i reflashed with new gapps I had Global/3g/2g/LTE as my network options. after it goes out, all I have is LTE/3g/2g and anything but LTE kills radio.
I wonder whats going on. Maybe google is restoring some type of data?
i know the guy who flashed yesterday and had it working, lost data after some time, and I wonder if he ran into same issue I had.

riggsandroid said:
actually when i reflashed with new gapps I had Global/3g/2g/LTE as my network options. after it goes out, all I have is LTE/3g/2g and anything but LTE kills radio.
I wonder whats going on. Maybe google is restoring some type of data?
i know the guy who flashed yesterday and had it working, lost data after some time, and I wonder if he ran into same issue I had.
Click to expand...
Click to collapse
It sounds like the ROM doesn't know how/when to fall back onto 3g to answer phone calls. Did you try 3G or 1x only to test calls?
Sent from my LG-LS980

Ascertion said:
It sounds like the ROM doesn't know how/when to fall back onto 3g to answer phone calls. Did you try 3G or 1x only to test calls?
Sent from my LG-LS980
Click to expand...
Click to collapse
it switched fine initially. showed 3g in status bar, sent SMS. started a call.
once the preferred network changes, anything but LTE kills the radio. "Emergency Calls Only" is what the status is in the quicktiles. With a blank radio signal indicator.

riggsandroid said:
it switched fine initially. showed 3g in status bar, sent SMS. started a call.
once the preferred network changes, anything but LTE kills the radio. "Emergency Calls Only" is what the status is in the quicktiles. With a blank radio signal indicator.
Click to expand...
Click to collapse
so i can go into the *#*#4636#*#* menu via the dialer and change the radio mode to EvDO only and get 3g and can make calls and send SMS. If I choose CDMA/LTE it transitions to the LTE network then ****s the bed and won't send SMS or make phone calls. It does send MMS and have fully functioning data on LTE. However, then its just a tablet.
I'm going to wipe and reflash again, as I did mess with a whole bunch of crap now and see if I can get anything figured out.
Any ideas?

Guys with data issues try the apn backup and restore method. Some one needs to get the stock .xml out of a stock rom
Sent from my LG-LS980 using XDA Premium 4 mobile app

xblackvalorx said:
Guys with data issues try the apn backup and restore method. Some one needs to get the stock .xml out of a stock rom
Sent from my LG-LS980 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Its not apn
Sent from my LG-LS980 using XDA Premium 4 mobile app

jsteelm said:
Which baseband you got? I doubt we have different ones, since the phone I think only has 2 modems out.
Edit: After looking at the post here http://forum.xda-developers.com/showthread.php?t=2451426 I don't know how to distinguish v7 and v8. Regardless, I highly doubt that's the issue.
Have you tried changing your Preferred network type? Mine is set to "Global" On occasion, I've seen Data enabled turned off seemingly spontaneously on other devices, sooo check that too
Here's mine (attachment):
Click to expand...
Click to collapse
Baseband display number is the same from ZV7 to ZV8, hoping LG gives us an actual name for the next one.

What version of gapps are you guys using for this?

Signal dropping constantly

So my mom has this phone, and me and my sister have HTC ones. Our phones work fine at home, and we just got Lte coverage a few days ago, so that's been nice. However, my mom's phone recently has been dropping basically every call no matter where she is or how much service it says she has. The signal bars show a red x, and usually given time the service will come back, but sometimes it takes a restart. I've tried updating profile and prl, and the best the people at the sprint store could do was tell me that there is supposed to be a software update coming to fix it. The phone is completely stock. It doesn't seem like the network cause the other phones work fine. Has anyone else had this issue? Any ideas on what we could try?

TriBeard said:
So my mom has this phone, and me and my sister have HTC ones. Our phones work fine at home, and we just got Lte coverage a few days ago, so that's been nice. However, my mom's phone recently has been dropping basically every call no matter where she is or how much service it says she has. The signal bars show a red x, and usually given time the service will come back, but sometimes it takes a restart. I've tried updating profile and prl, and the best the people at the sprint store could do was tell me that there is supposed to be a software update coming to fix it. The phone is completely stock. It doesn't seem like the network cause the other phones work fine. Has anyone else had this issue? Any ideas on what we could try?
Click to expand...
Click to collapse
You must have weak LTE signal. Go to Settings>More>Mobile Networks and tick it to CDMA. If she wants LTE she'll have to do this manually.
Sorry but it's just the way this phone is.
Sent from my LG-LS970 using XDA Premium 4 mobile app

engine95 said:
You must have weak LTE signal. Go to Settings>More>Mobile Networks and tick it to CDMA. If she wants LTE she'll have to do this manually.
Sorry but it's just the way this phone is.
Sent from my LG-LS970 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I'll give that a try and see how it works. Why does this phone have an issue with it and the others don't seem to?

TriBeard said:
I'll give that a try and see how it works. Why does this phone have an issue with it and the others don't seem to?
Click to expand...
Click to collapse
It's just the way some phones are. My wife has the HTC One also, and she has to change hers too.
Sent from my LG-LS970 using XDA Premium 4 mobile app

Well, I changed the mode to CDMA only, but no dice. It doesn't make a difference. Any other suggestions?

TriBeard said:
Well, I changed the mode to CDMA only, but no dice. It doesn't make a difference. Any other suggestions?
Click to expand...
Click to collapse
You can try to flash the ZVC radio from here. http://forum.xda-developers.com/showthread.php?t=2230106 but you'd have to root/unlock.
Other option is to LGNPST in the same thread under "Additional info". That's about all I got.
Sent from my LG-LS970 using XDA Premium 4 mobile app