Database Users

[Q] Wifi Keeps turning back on

I have a very strange problem that I need help with. Whenever I turn WiFi off it immediately turns itself back on. This started happening after I got a new Straight-talk Sim card (I needed a new one for porting a phone number purposes). If I use my old straight-talk I can turn WiFi on and off, if I use an old inactive T-Mobile Sim I can turn it on and off, and if I boot with no Sim I can turn it on and off. I have tried multiple APN settings to try to see if that might be the issue. This issue seems very much to be related to this new Sim card though, as it has repeated itself a good ten reboots. So it sounds crazy but is there really something that Straight-talk could be putting in their Sim cards to keep WiFi on at all times, and if so is there anyway to disable that. I'm going to try to reset everything to confirm it isn't a software issue, but since the issue only exists with this new Sim card and doesn't present itself with two other Sim cards I'm pretty confident that it is not a software issue.
I am rooted so if something in the buildprop could cause this I would be willing to investigate.
Also not sure if it is related but this Sim card that I have willnot work with the standard straight talk APN (att.mvno), instead I have to use a different APN (wap.tracfone) which is apparently a new APN that they are using, and my phone willnot activate on the older one, even though that is the APN that was on the activation card. Not sure if one is related to the other.

by any chance did you install a cell tracking software (like avast)?
Maybe it is think your phone got stolen (new sim) and trying to find your location

You my friend are an absolute genius, it was avast.

I have the same issue, but I do not have Avast installed.... How to find out what software is doing it??
Oh wait - it was Qualcomm batteryguru app for snapdragon processors... sorted

Can't get any t-mobile service

My N4 got here today and put my t-mobile sim card in, but I'm not getting any service at all. Even with the sim card inserted, it still says "Emergency Calls Only." I tried connecting to tmo manually in the mobile networks page, but it just errors without connecting. What's strange is that on the phone status screen, my phone number and IMEI are displayed correctly so I don't think my sim card is the issue.
It shipped with 4.2.2, so I tried reverting back to 4.2.1 since I saw a couple comments about how the 4.2.2 update was causing reception issues, but still nothing. Tried flashing different radios/kernels/roms, but can't seem to get anything to work. I'm not having any other connectivity issues (wifi, bluetooth, etc) either. Could anyone shed some light on this issue? I'm stumped.

dudeimawesome said:
My N4 got here today and put my t-mobile sim card in, but I'm not getting any service at all. Even with the sim card inserted, it still says "Emergency Calls Only." I tried connecting to tmo manually in the mobile networks page, but it just errors without connecting. What's strange is that on the phone status screen, my phone number and IMEI are displayed correctly so I don't think my sim card is the issue.
It shipped with 4.2.2, so I tried reverting back to 4.2.1 since I saw a couple comments about how the 4.2.2 update was causing reception issues, but still nothing. Tried flashing different radios/kernels/roms, but can't seem to get anything to work. I'm not having any other connectivity issues (wifi, bluetooth, etc) either. Could anyone shed some light on this issue? I'm stumped.
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Click to collapse
Did you get the N4 from Google Play or T-Mobile? If not, check that the IMEI is not blacklisted.
http://www.t-mobile.com/verifyIMEI.aspx
Is this a MicroSIM, or a cut down MiniSIM?
Cut SIM's known to have issues.
When you reverted to 4.2.1, did you flash the radio image as well?
http://forum.xda-developers.com/showpost.php?p=36400943&postcount=1
Unless you need LTE, I would re-flash JDQ39 and re-lock the bootloader
https://developers.google.com/android/nexus/images#occam
If T-Mobile shows in a network scan, you should be able to connect. Visit a T-Mobile store to swap SIM's, otherwise you may need to RMA it.

I bought it on ebay. Checked to see if the IMEI is blacklisted but according to T-Mobile the IMEI is clear for use.
I am using the same sim card from my galaxy note, but I had it cut at a t-mobile store. The guy even verified that it was cut properly by putting it in his galaxy s3 and it worked fine.
When I reverted to 4.2.1, I tried using both radios 0.48 and 0.33, but neither did anything.
I'll try your last suggestion and report back.
Thanks

The N4 is super picky about cut Sim cards
Even if it works on another phone , it probably won't work in the Nexus .
Sent from my Nexus 4 using xda app-developers app

Make sure the gold contacts on the back are all getting touched , you should see lightly indented lines on the back from putting it in your slot , if it doesn't work try to get a precut micro sim from T-Mobile
Sent from my Nexus 4

s5: incoming calls no icon??

i have bought a new s5 and haveno incoming calls unless i turn wifi off, then it works fine
sim card has been replaced, samsung have even replaced handset and exactly same occurs
i have turned off 4g so its only on 3g/2g
the network have turned off all call barring etc settings
if i put my sim in my old S3 it works flawless, if i put my wifes sim in my s5 it also works flawless
network or samsung cant work it out, its been factory reset like 6 times now its driving me mad
thanks Kplus

You didn't provide any detailed information about your phone model, firmware or even a step by step description of how you did a factory reset. So we have no way of discerning whether you missed any essential steps or narrow anything down.
Nevertheless you have an odd problem that no one else seems to be reporting. Ergo the most likely explanation is odd settings or corruption on your phone. As a factory reset (clearing user settings) apparently didn't work, the most plausible remaining cause would be a cache problem or some anomaly in your system files.
To that end, try wiping the cache from recovery mode. If that doesn't help, then use Odin to write a full stock firmware to your phone to replace the system files as well. If your problems persist then open a support ticket with your carrier to look into your account configuration. The latter is unlikely though if the SIM works in another phone. So in as much as we can tell given the paucity of details, you should try replacing your system files with Odin. Also check your APN information.
.

my phone s5 world version 4.4.2 32gb

S5 incoming calls delayed
fffft said:
You didn't provide any detailed information about your phone model, firmware or even a step by step description of how you did a factory reset. So we have no way of discerning whether you missed any essential steps or narrow anything down.
Nevertheless you have an odd problem that no one else seems to be reporting. Ergo the most likely explanation is odd settings or corruption on your phone. As a factory reset (clearing user settings) apparently didn't work, the most plausible remaining cause would be a cache problem or some anomaly in your system files.
To that end, try wiping the cache from recovery mode. If that doesn't help, then use Odin to write a full stock firmware to your phone to replace the system files as well. If your problems persist then open a support ticket with your carrier to look into your account configuration. The latter is unlikely though if the SIM works in another phone. So in as much as we can tell given the paucity of details, you should try replacing your system files with Odin. Also check your APN information.
.
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Click to collapse
I'm on AT&T and having the exact same problem. I switched from Verizon as AT&T has a new tower in my rural area for better reception. I have 3 bars in my home and when talking on the phone it goes up to 4 bars. No problem calling out. Purchased the new Samsung Galaxy S5 on 9/15/14.
Incoming calls go directly to VM. Sometimes the phone works as it should and calls and messages came thru in a timely manner.
Mostly the calls go to VM and text messages are delayed. Vm doesn't show up as having a vm for hours.
I have gotten a new sim card, exchanged the phone and the new phone does exactly the same thing, I am now past my 14 days so I am stuck with this phone unless I agree to a warranty replacement phone from AT&T. (Same phone S5)
I have has 4 cases with AT&T and nothing has helped. Last case will be resolved bu Oct 4.
I will try turning off WIFI while at home and see if that helps.
I have reset the new phone, did not help. I don't understand why with 3 bars I can't receive calls.
Calling out is no problem. Incoming doesn't work correctly. Any suggestions are greatly appreciated. Thanks in advance.

kplusonline said:
i have bought a new s5 and haveno incoming calls unless i turn wifi off, then it works fine
sim card has been replaced, samsung have even replaced handset and exactly same occurs
i have turned off 4g so its only on 3g/2g
the network have turned off all call barring etc settings
if i put my sim in my old S3 it works flawless, if i put my wifes sim in my s5 it also works flawless
network or samsung cant work it out, its been factory reset like 6 times now its driving me mad
thanks Kplus
Click to expand...
Click to collapse
Friends of mine were at my house over the weekend and he had a samsung s4 and had the same problem after logging onto my wifi. It is the wifi causing the problem. I had an old modem and netgear router that we hooked up and then we were able to receive calls like you should. We switched out the modem/router combo on Sat to my older setup and my phone is still working normally! I called my dsl provider and told them about the problem as I just bought the modem/router combo from them recently.
They never heard of anything like this. I do find it hard to believe that the home wifi equipment disrutes the cell phone signal. But my phone is now working!!! Anyone ever heard of this or that can explain why this would happen I would love to hear about it.

[solved] No connectivity with cm14.1 (nightly 20161119)

Hi,
After upgrading my Oneplus Two from cm13 to cm14.1 (nighlty 20161116) my SIM worked and I could connect to GSM, LTE, etc. But after a few days it stopped working. I can still search for networks and I find the one I need. APN settings are correct and IMEI is correctly displayed in the settings. But there's no connection (no bars).
I'm out of ideas. Does anyone have a clue how to find out if my phone is the problem or CM14?

Did you make a clean flash?

Yousvel said:
Did you make a clean flash?
Click to expand...
Click to collapse
Yes.
I made it to actually connect to the network again. But it seems that no traffic is going through. Sadly this only lasted for a couple of minutes. Now I can't connect again.

I'm facing a similar issue: data connections only work correctly when I use the primary SIM. Using the secondary SIM, I get slow Edge connections only.

Turns out I accidentally broke the antenna cable when I replaced my battery. I bought a new one and now it works again. So false alarm.

Galaxy S5 won't pass Hands-free activation; antenna problem?

I was using my Galaxy S5 on Ting, then the charging port went bad. A buddy's buddy fixed it. It was factory reset because someone else was going to use it, and they broke the SIM card when they tried to take it out.
They decided not to buy it, so I tried re-activating it on Ting with a new SIM card (from Ting). It wouldn't activate. For what it's worth, there were zero bars of signal, even when I walked outside (and we get perfectly good signal inside our house).
Ting sent me a 2nd SIM; same result.
My questions are:
1) When my "buddy" fixed it, could he have damaged something (antenna?) that is preventing the S5 from communicating with the towers?
2) If so, how easy/difficult would this be to troubleshoot/diagnose/fix? I am an advanced beginner when it comes to electronics repair.
Thanks.