Develop Bugs

Network Connection Issue - No 3g/4g

OK, I have been dealing with this since I bought my GSII and cannot find any information about it.
Firstly I want to say that I am completely stock and unrooted.
My phone does not like to keep a stable data connection. About 50% of the time, when I try to do anything that requires a data connection (facebook, browser, gmail, etc.) the 2 arrows under the 2g/3g/4g icon will stick being grey and my phone just sits there "loading". I tried a factory reset, didn't install any apps, and also got a new sim card and the issue remains. It happens everywhere so it is not just a bad network connection.
I decided to post the question here because yesterday I was playing with my brother's GSII, and his did the same thing.. So it made me think that maybe it wasn't just me. Has anyone else experienced this? Or does anyone know what might be the cause?
Edit: I set my phone to use 2g only, and the problem vanished.. So it doesn't like to connect to 3g/4g.
Sent from my SGH-T989 using xda premium

Try going to your mobile network connection settings, choose access point names, hit your menu button and click "restore defaults".. It may fix it, I had data issues and it did the job. Hope it works for you!
Sent from my SGH-T989 using Tapatalk

Do what the gut above me said. Also call Tmobile and tell them, they will refresh your data connection on their end. That will clear up three problems your having.
But if it's also happening to your brothers phone, it's a network error. Call Tmobile.
Sent from my SGH-T989 using XDA App

munzik said:
Do what the gut above me said. Also call Tmobile and tell them, they will refresh your data connection on their end. That will clear up three problems your having.
But if it's also happening to your brothers phone, it's a network error. Call Tmobile.
Sent from my SGH-T989 using XDA App
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I restored the apn settings and had Tmobile refresh my data connection, and it still happens. I noticed today that it's not just data, I'm also unable to call or text when it happens.. Tmobile just said everything tested normal so there is nothing they can do.. And I really don't think it's the phone so I don't want to exchange for a refurbished unless I have to.
Sent from my SGH-T989 using xda premiu

Its happened to me before. For about a week, the data connection just dropped. It would come back for a bit and later vanish. I called t-mobile and they guided me through routine steps (i.e. taking the battery out, rebooting, resetting) but nothing seemed to work. They really couldn't figure it out and later told me to replace the SIM. I can't remember if they shipped me one or had to go to the store but either way that relieved the problem. This was on an HTC HD2.
That might not be the case with you though. At one point in time all the phones under my name lost data connectivity just as you explain. This really had no solution but to wait it out.

Towle said:
I restored the apn settings and had Tmobile refresh my data connection, and it still happens. I noticed today that it's not just data, I'm also unable to call or text when it happens.. Tmobile just said everything tested normal so there is nothing they can do.. And I really don't think it's the phone so I don't want to exchange for a refurbished unless I have to.
Sent from my SGH-T989 using xda premiu
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Are you paying for teathering?

sgip2000 said:
Are you paying for teathering?
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Click to collapse
No I don't use tethering, my download speeds are too slow where I live.
Sent from my SGH-T989 using xda premium

you mentioned your brother's is doing the same thing, its probably not the phone, but rather the cell tower your connected to is fuggin up. Try going 5 miles from where you currently are and see if its still happening.

Network error
Sent from my SGH-T989 using XDA App

Just in case it's not a cell tower or network problem . . . My SGS2, purchased in October, had the same symptoms as the OP. After trying everything the OP did, and more, I came to the conclusion that the firmware on the phone was corrupt. I used Odin to flash the factory stock ROM & Kernel images (2.3.5 at the time). There was a definite improvement in the faltering/hesitant/fail connectivity problem at that point, but it was still very subpar. So I then also flashed, again using Odin, the baseband ("modem") image - I did it twice for good measure. The problem was finally immediately solved at that point and I had very prompt loading of webpages, etc. Still working fine months later (and even better with a custom ROM). See the thread entitled "[Q]Is there a "true" factory restore for T-Mobile Galaxy S II?" for help about the seemingly same symptoms/problem you (and your brother) are experiencing. If your underlying problem is in fact the same as mine (and the poster of the thread I cited) then it's apparently either a bad factory flash or a post-factory corruption occurrence that is causing your problem . . . the coincidence of your brother also having the same problem aside. Good luck!
Sent from my SGH-T989 (now on GingerSnap v1.21) using XDA App

[Q] Phone Doesn't Ring When Receiving A Call

Hey Everyone! So I'm having this problem where my phone will NOT ring or show that someone is even calling. The only way I found out that someone called me is when they text me asking why I didn't answer them. Well, my simple answer (that people are starting to not believe) is that my phone didn't even show that someone was calling... This wasn't so much an issue before because they could always text me if they needed to get a hold of me. But now after to applying to many places for a job, I kinda need it to ring. I also have another issue and that is that texts will not receive either. The only way I can get them is through Google Voice. This wasn't such a big deal to me but I would like to know if that can be fixed too. I have never had this issue until after I tried CM9. Since then I have tried many other ROMs to see if i still had this issue. I did.
The other ROMs I tried are:
MIUI v4
AOKP
Clean GB
Marcusant v3
MIUI Gingerbread
CM7
Legendary
What my current setup is:
ROM: AOKP
Android version: 4.0.3
Baseband Version: S700.0.5S.EI22
Kernel Version: [email protected] #6
Build Number: IML74K
Mod Version: aokp_epicmtd_build-28
Theme: NONE
PLEASE!!! ANY HELP IS APPRECIATED!

Odin back to stock EL30. Follow the procedure in the How to restore a semi-bricked Epic thread. Test it there. If it works root and flash, do not restore data.
Sent from my SPH-D700 using xda premium

kennyglass123 said:
Odin back to stock EL30. Follow the procedure in the How to restore a semi-bricked Epic thread. Test it there. If it works root and flash, do not restore data.
Sent from my SPH-D700 using xda premium
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Click to collapse
I did this and (sorry for taking so long to get back to you but i wanted to make sure that it was happening often and not just once in a while) it worked for the phone ringing but the messaging, although im receiving them, they come late. sometimes VERY late like a whole day later. This is not cool and would really like to find a solution because i dont want to have to be stuck on stock :'( Oh yeah btw the ROM i flashed this time was AOKP. Thank you for the help!!

I believe late texts are a symptom of carrier network issues. It should clear up when the maintenance is finished.
Sent from my PantechP4100 using xda premium

I am having the same issue with the phone calls either coming in late or not at all. I test this by calling my number from a land line. It takes 4 - 5 rings before the phone will start ringing, if it rings at all. Most of the time, Google Voice answers for voicemail.
I remember back in the days when I had my Windows phone, there was something that we could do to have the phone poll the towers more often to make the phone ring faster. I know that this faster response to phone calls came at the expense of more battery usage. I wonder if some of the battery saving tweaks done by the ROM developers has had a negative effect on the phone calls coming in.
I have tried updating my PRL and whatever through EL30, then reflashing with out restoring any data. Still having the issue.
Thanks.

this same thing is happening to me and everyone else in my neighborhood that has sprint. Its one specific tower that's causing the issues. I know this because once I connect to a different tower the issue goes away. I contacted sprint about it and they said they would fix it when they do the network vision upgrades, which could be a ways away.
Sent from my cm_tenderloin using Tapatalk 2 Beta-5

kennyglass123 said:
I believe late texts are a symptom of carrier network issues. It should clear up when the maintenance is finished.
Sent from my PantechP4100 using xda premium
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Click to collapse
I kinda thought it was a problem with the network and so i called them and last time they sent me a airave and it didnt solve the problem. I still think its a problem with sprint overall and am planning on calling them.

I have the same exact problem. I have even had the phone replaced and it still does it. I only know when it happens because google voice logs the missed call. I have had it happen with a completely stock phone as well as rooted.
It is very frustrating because like you said, people don't believe you when you say that your phone did not ring.
They are actually going to switch my phone again. I know this is not going to fix the problem, but I will play the game!

Can receive calls but not make them

I apologize in advance if this is a thread somewhere I couldn't find it.
I was recently using CM9 alpha3 on my E4GT, and last night suddenly I wasn't able to make calls. It says "we're sorry but we can't complete your call right now" or it just instantly hangs up. I thought it may have been an issue with the rom or modem, so I went back to Calkulin's GB EL29 ROM. Same issue, even after resetting PRL and profile multiple times with phone restarts. I can send and receive texts, and I can receive calls, but I can't make calls. Another thing to note is I use an Airrave in this house, I tried resetting that as well, and dialing *99 which is supposed to also refresh or reset it. None of these tactics have worked and I was wondering what else I could try. Thanks again in advance!

Robots88 said:
I apologize in advance if this is a thread somewhere I couldn't find it.
I was recently using CM9 alpha3 on my E4GT, and last night suddenly I wasn't able to make calls. It says "we're sorry but we can't complete your call right now" or it just instantly hangs up. I thought it may have been an issue with the rom or modem, so I went back to Calkulin's GB EL29 ROM. Same issue, even after resetting PRL and profile multiple times with phone restarts. I can send and receive texts, and I can receive calls, but I can't make calls. Another thing to note is I use an Airrave in this house, I tried resetting that as well, and dialing *99 which is supposed to also refresh or reset it. None of these tactics have worked and I was wondering what else I could try. Thanks again in advance!
Click to expand...
Click to collapse
Maybe you might be hotlined from Sprint. Sounds silly but is you bill paid?
Sent from my SPH-D710 using xda premium

possibly Blacklisted
expanding on the previous post..
Did you get the phone direct from SPRINT. or via ebay or at a pub?
Bills paid?
are you the only registered owner of the handset?
people will sell you a phone, then after a little bit of time passes. they register the phone as LOST/STOLEN/DAMAGED the network Blacklists it and provides the fraudster with a shiny new handset.
you end up out of pocket without a working phone.
its an increasingly popular fraud technique I'm afraid.

Silly question but it needs to be asked, are you sure it wasn't something with the number you were calling? Did you try calling several number?

Airrave services are having issues. Power it off for a day.
Sent from my SPH-D710 using Tapatalk 2

The bill is current, I have called multiple numbers, both on the sprint network and others neither has worked. I have other family members in the household on the same plan using the airrave and they are able to make calls. I bought the phone directly from sprint brand new from the store with my 2 year contract.

Why don't you use sfhub's one-click EL29, get yourself back to simple stock rooted and see if it clears up the issue. It's always my fall back whenever something goes awry.
http://forum.xda-developers.com/showthread.php?t=1433101

Esoteric68 said:
Why don't you use sfhub's one-click EL29, get yourself back to simple stock rooted and see if it clears up the issue. It's always my fall back whenever something goes awry.
http://forum.xda-developers.com/showthread.php?t=1433101
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I did actually use that right before I flashed Calk's E4GT rom and I had no luck with it either Probably should've mentioned that.

Robots88 said:
I did actually use that right before I flashed Calk's E4GT rom and I had no luck with it either Probably should've mentioned that.
Click to expand...
Click to collapse
Don't reflash Calkulin's ROM until you've been able to recover your voice calling services. Both CM9 and Calkulin's ROM are custom, so maybe that's where the problem is coming from. You need to get back as close to stock as possible then see if the problem persists.
Go back to EL29 (plain stock or stock-rooted), see if everything is working then you'll know if maybe it's something in the flashing process that is knocking out the voice calling.

I'm also having the exact same issue with my airave. If I unplug it I'm able to make calls without a problem. So as someone else posted I believe the airaves are having issues today. But I am on the stock FD26 ICS if anyone else is having the problem and thinks it has anything to do with the leak.

Compusmurf said:
Airrave services are having issues. Power it off for a day.
Sent from my SPH-D710 using Tapatalk 2
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Click to collapse
This must be the issue then, thanks!
priceaw1 said:
I'm also having the exact same issue with my airave. If I unplug it I'm able to make calls without a problem. So as someone else posted I believe the airaves are having issues today. But I am on the stock FD26 ICS if anyone else is having the problem and thinks it has anything to do with the leak.
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Click to collapse
Yeah I unplugged the airave and I walked far outside to get a bar and was able to make a call. Didn't think it was the culprit because other family members can make calls with it, they have different phones though.
Thanks for the help guys

Having the same issue as well today. Tried powering down, chatted w sprint, still having issues. Don't think it has to do with build or rom as I have been on just about everything since I had mine.
Sent from my SPH-D710 using XDA

dante32278 said:
Having the same issue as well today. Tried powering down, chatted w sprint, still having issues. Don't think it has to do with build or rom as I have been on just about everything since I had mine.
Sent from my SPH-D710 using XDA
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+1 having same issues. It was driving me crazy.
Sent from my SPH-D710 using xda premium

Exact same issue here too. Started yesterday morning. Have not had a chance to test it out today. Sister's iPhone works fine with the airave. Seems only my phone is affected for some reason. Spirit said they would get back to me in 72 hours. Hope the issue is resolved soon. Using Grooveip to make calls in the meantime.
Sent from my SPH-D710 using xda premium

Four people in the house on my plan and no-one has mentioned any issues with the airave other than the spamming txt issue sometimes.

Update: mine just started working again. Last night I reset the box by pressing the reset button for 15 seconds, still having issues after it reset through this morning. Sometime in the last hour it has become fully functional again. Weird.
Sent from my SPH-D710 using XDA

dante32278 said:
Update: mine just started working again. Last night I reset the box by pressing the reset button for 15 seconds, still having issues after it reset through this morning. Sometime in the last hour it has become fully functional again. Weird.
Sent from my SPH-D710 using XDA
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Click to collapse
Will try when I get home.
Sent from my SPH-D710 using xda premium

Can't recive calls when WIFI calling enabled on SG2

WIFI calling enabled on SG2 won't receive calls
I've been flashing Roms for about three years now. I travel over seas quiet a bit and wifi calling is have been very helpful. But lately I've been having problems when I'm on any ICS roms. I don't know if it's just me, because looks like nobody else is having same issue, but I can't receive phone calls when wifi calling is enabled. It goes strait to voice messaging. I can make phone calls, but can't receive them. I have no problems with WIFI calling when running Gingerbread roms. Please help!

Might wanna take it up to tmobile if you confident you are following the ROM installing procedure.
How about go back to GB and see if you still have the issue
Sent from my SGH-T989 using xda premium

shankar10 said:
Might wanna take it up to tmobile if you confident you are following the ROM installing procedure.
How about go back to GB and see if you still have the issue
Sent from my SGH-T989 using xda premium
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Click to collapse
Thanks for the reply!
That's the thing, WIFI-calling is working just fine on ANY of GB ROMs (I'm running Darkside Digital Warfare v2.7 now). It's when I'm on ICS ROMs and WIFI-Calling is active incoming calls not going through, they are going to voice mail without one ring from the caller (it's like phone is off). But I can make phone calls no problem. And trust me I've tried all the new ICS ROMs that came out lately. And I do follow installing instructions very carefully.

Do you have the beats audio mod installed? I figured out with a few other people that it does cause an incoming call issue. And i know that wi fi calling is hit or miss on ICS

oh man. i just realized im having the same problem. i just didnt think anyone was calling me.

I called T-Mobile about this today, because none of my phones (S2, Blaze, Double play) would receive calls over WiFi. Ever since I called it's been working. Maybe it was a system update on the T-Mobile end?
Sent from my SGH-T989 using xda app-developers app

MassiveAttack said:
I called T-Mobile about this today, because none of my phones (S2, Blaze, Double play) would receive calls over WiFi. Ever since I called it's been working. Maybe it was a system update on the T-Mobile end?
Sent from my SGH-T989 using xda app-developers app
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Click to collapse
But I can receive calls (wifi active) on all the GB ROMs I've tried. It's the ICS ROMs I'm having problem with... But thanks for the advice, I'll try calling T-mobile tomorrow.

SMS Issues since Lollipop update

Has anyone been having delayed text messages being sent and received since the update? My wife has been having this issue with her M8. It's been intermittent but it happens almost every day to her.
Sent from my Nexus 6 using XDA Free mobile app

jaggrey said:
Has anyone been having delayed text messages being sent and received since the update? My wife has been having this issue with her M8. It's been intermittent but it happens almost every day to her.
Click to expand...
Click to collapse
I have also been having this issue. Sometimes a text message takes an hour or more for me to receive it or my recipient to receive it, other times I'll receive up to 4 of the same message in quick succession. It mostly happens when I have Wi-Fi calling enabled, as text messages don't seem to play well with it. For some reason, it completely disables the cellular radio instead of working in conjunction with it. Drives me crazy.

My wife's phone has wifi calling enabled but had cellular as the preferred connection method, so it would only switch to wifi calling if there was absolutely no signal. So I don't think in her case wifi calling was the issue. I completely turned it off just in case tho. I'm having her try another messaging app just to see (Google Messenger vs. HTC stock), but I don't think that's the problem.
Sent from my Nexus 6 using XDA Free mobile app

jaggrey said:
My wife's phone has wifi calling enabled but had cellular as the preferred connection method, so it would only switch to wifi calling if there was absolutely no signal. So I don't think in her case wifi calling was the issue. I completely turned it off just in case tho. I'm having her try another messaging app just to see (Google Messenger vs. HTC stock), but I don't think that's the problem.
Sent from my Nexus 6 using XDA Free mobile app
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Click to collapse
Also remember that the only app that can send mms messages over wifi calling is the delivered one that comes with the phone. Any 3rd party apps (like handcent, chompsms, etc) will not be able to send mms messages over wifi calling.

Hi, I had the same problem plus mms would be sent nor downloaded. I was using the messenger google app though, switched back to stock message app and it resolved the issue

Remix22 said:
Hi, I had the same problem plus mms would be sent nor downloaded. I was using the messenger google app though, switched back to stock message app and it resolved the issue
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I called T-Mobile and they had me clear the cache from the Messaging app, and then reset the APNs back to default. So far so good... Everything started working.
Sent from my Nexus 6 using XDA Free mobile app

I spoke too soon. She's still having the same problem. Reboots always fix it, but it's getting annoying. Guess next step is a factory reset. :what:
Sent from my Nexus 6 using XDA Free mobile app

jaggrey said:
I spoke too soon. She's still having the same problem. Reboots always fix it, but it's getting annoying. Guess next step is a factory reset. :what:
Sent from my Nexus 6 using XDA Free mobile app
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while related but unrelated, I had to do a factory reset after the lollipop update b/c my wifi was having issues that seemed random.
-brad

bradley_e_smith said:
while related but unrelated, I had to do a factory reset after the lollipop update b/c my wifi was having issues that seemed random.
-brad
Click to expand...
Click to collapse
I don't think she's had any issues with wifi but i'm not really sure. I know yesterday I was trying to back up her phone preparing to wipe it and I saw the wifi would go out then come back on. I was about 10 feet from the router and everything else on wifi was holding steady except for the phone. Is that similar to the issues you were having?

jaggrey said:
I don't think she's had any issues with wifi but i'm not really sure. I know yesterday I was trying to back up her phone preparing to wipe it and I saw the wifi would go out then come back on. I was about 10 feet from the router and everything else on wifi was holding steady except for the phone. Is that similar to the issues you were having?
Click to expand...
Click to collapse
My issue was that the wifi would connect and then drop then connect. Also some wifi AP, it would work great. To me it was just inconsistent, so I figured in for a penny in for a pound and just wiped the phone. That worked for me, but it if didn't I was planning on re-installing TWRP and some custom ROM as my bootloader was unlocked (but I was still s-on).
-brad

Any further solutions to this problem of intermittent delayed text messages? I now have 5.1.1, and use Hangouts. I also sometimes don't get calls either, it's like the cell antenna just turns off.

From what I remember a hard reset fixed the problem for my wife's phone.