Database Users

[Q] Data stopped working on my S4

I have unlimited data and a stock ROM. My phone is unrooted. I've had it for about a week now. Everything works fine on WiFi, but I get no connection via 3G/4G of any kind. I don't even get Edge network data. I've checked to make sure there wasn't an APN that I was missing, I used the *#*# number to check stuff, but nothing. I can't ping google from there, either. I've pulled the battery, I've stopped disabled and reenabled my data. I'm not really sure what's going on here.
Suggestions/help before I got to ATT?

Schwooby said:
I have unlimited data and a stock ROM. My phone is unrooted. I've had it for about a week now. Everything works fine on WiFi, but I get no connection via 3G/4G of any kind. I don't even get Edge network data. I've checked to make sure there wasn't an APN that I was missing, I used the *#*# number to check stuff, but nothing. I can't ping google from there, either. I've pulled the battery, I've stopped disabled and reenabled my data. I'm not really sure what's going on here.
Suggestions/help before I got to ATT?
Click to expand...
Click to collapse
Happened to me when someone reported my phone stolen. I would try factory reset, then ATT.

thacounty said:
Happened to me when someone reported my phone stolen. I would try factory reset, then ATT.
Click to expand...
Click to collapse
Thanks.
Idk why anyone would do that to me. I'll try the factory reset and see if that works. Hoped it would come to that

After factory reset, still doesn't work.

Is ATT working on your network there locally? I remember right before they turned LTE on here in Anchorage my phone lost all data for about two hours.

rbj13 said:
Is ATT working on your network there locally? I remember right before they turned LTE on here in Anchorage my phone lost all data for about two hours.
Click to expand...
Click to collapse
Turns out it was a bad SIM.

[Q] WiFi Troubles?

Ok before I begin with this thread I'd like to say although I'm a new user, I have been on XDA for quite some time. My old account information has been lost.
Basically, my WiFi on my SGS4 I9505 is working when I'm at home, but I can't connect to the one at work. It used to work flawlessly, connected without me clicking the buttons, but now it says "Connecting" then straight back to "Saved"
What have I tried?
- New roms, different Android releases
- Searching forums
- Completely re-flashing the stock firmware via Odin
- Multiple modems via Odin
No matter what I do, I can connect at my home modem but not my work one, all of my work colleges are connected, I've had my friend try connect it (he was the man who introduced me to flashing ect) and he hasn't a clue.
Any advice would be appreciated & the reason I'm creating an entirely new thread is due to the fact my WiFi works at home so it's not just a bug there. Thanks.

irscotty said:
Ok before I begin with this thread I'd like to say although I'm a new user, I have been on XDA for quite some time. My old account information has been lost.
Basically, my WiFi on my SGS4 I9505 is working when I'm at home, but I can't connect to the one at work. It used to work flawlessly, connected without me clicking the buttons, but now it says "Connecting" then straight back to "Saved"
What have I tried?
- New roms, different Android releases
- Searching forums
- Completely re-flashing the stock firmware via Odin
- Multiple modems via Odin
No matter what I do, I can connect at my home modem but not my work one, all of my work colleges are connected, I've had my friend try connect it (he was the man who introduced me to flashing ect) and he hasn't a clue.
Any advice would be appreciated & the reason I'm creating an entirely new thread is due to the fact my WiFi works at home so it's not just a bug there. Thanks.
Click to expand...
Click to collapse
Same exact thing happening to my S4 SPH-L720 (Sprint). Using NegaliteROM 4.4
Tried:
-Re-flashing ROM
-Updating PRL & Profile
-"Forget Network" and re-typed password (confirmed with IT dept password hasn't changed)
- Cleared google account ("Backup and reset" portion) then re-synced after failed login.
And as irscotty stated, wifi works EVERYWHERE else and it just goes straight to "Saved Secured"
Is there a way to reflash the Wifi card to an older Firmware? I don't recall updating it manually, and I believe that is the only way to update it (correct me if i'm wrong). If so, is this even advisable....
Thanks

The only other thing I can think is perhaps the contract provider has cut down the WiFi limitations?
Not sure if that's even possible but every other modem I connect to is just a few feet away, the one at work is perhaps 5-8 metres. But was working 100% prior to this, and the signal strength is saying "Strong" just wont connect

irscotty said:
The only other thing I can think is perhaps the contract provider has cut down the WiFi limitations?
Not sure if that's even possible but every other modem I connect to is just a few feet away, the one at work is perhaps 5-8 metres. But was working 100% prior to this, and the signal strength is saying "Strong" just wont connect
Click to expand...
Click to collapse
Yeah I'm literally 1 yard away from the router. What do you mean by cutting down on limitations? Blocking the amount of mac id's from the router homepage ?

No it has been known in the past for your data providers to cut down your WiFi range to force you into using their data, as opposed to WiFi.
Although to my knowledge, this can only be done through an OTA update on the original software (not custom)

My current solution to this is by changing my Mac address and have successfully logged back in. Seems like was I indeed being blocked. But have no confirmation yet. I use a program called MacChanger (requires root) and hard change my ID when I'm at work. Has been working for a few days now.
Good luck
irscotty said:
No it has been known in the past for your data providers to cut down your WiFi range to force you into using their data, as opposed to WiFi.
Although to my knowledge, this can only be done through an OTA update on the original software (not custom)
Click to expand...
Click to collapse

dis666 said:
My current solution to this is by changing my Mac address and have successfully logged back in. Seems like was I indeed being blocked. But have no confirmation yet. I use a program called MacChanger (requires root) and hard change my ID when I'm at work. Has been working for a few days now.
Good luck
Click to expand...
Click to collapse
Going to try this when I'm at work next, will let you know. Thanks

Data problems - only 4g, no 3g/1X

I've noticed for a while that my phone's data is unusable any time I have a solid 3g or 1x connection. However, data works fine on 4g. Running NC4 with MJE radio, stock rooted. My wife's Note 2 works fine at the same locations, so I know it's something up with the phone or configuration.
Any ideas?
Thanks in advance.

crowbarman said:
I've noticed for a while that my phone's data is unusable any time I have a solid 3g or 1x connection. However, data works fine on 4g. Running NC4 with MJE radio, stock rooted. My wife's Note 2 works fine at the same locations, so I know it's something up with the phone or configuration.
Any ideas?
Thanks in advance.
Click to expand...
Click to collapse
Have you tried any other radios to test the 3g? Other than that you could check out this thread.

kinstre11 said:
Have you tried any other radios to test the 3g? Other than that you could check out this thread.
Click to expand...
Click to collapse
Thanks for the reply. Yeah, I tried NC2/NC4 radios, and no dice. I'll keep playing with it..perhaps I'll switch to Alliance or something and see if some ROM setting has gotten screwed up somewhere.

crowbarman said:
Thanks for the reply. Yeah, I tried NC2/NC4 radios, and no dice. I'll keep playing with it..perhaps I'll switch to Alliance or something and see if some ROM setting has gotten screwed up somewhere.
Click to expand...
Click to collapse
If you are willing to take the time you could try this. I've done it once and it fixed some residual settings left over from multiple roms.

Finally had a resolution to this issue -
After everything else not working, I took a SIM from a family member and put it in my phone. Data worked fine. So, I requested a replacement SIM from the Verizon store, and the issue is fixed. Not sure what happened with the old SIM, but it was a carryover from an older 4G phone.
It was ackward explaining to the rep what "Safe Strap" was...I mumbled something about installing a few tools to troubleshoot this issue from the Play Store.

Wifi, time and root

Hi there,
I'm using CM 12.1, 20150817 version. It's working well, apart from one really annoying thing:
My wifi will not reconnect to networks. Or at least most of the time.
If I set up a new network, it all goes very well, but as soon as I'm out of reach and come back in reach, something goes wrong. My phone sees the wifi network, but doesn't connect. It's in the list of available networks, but just doesn't connect at all. If I manually tell it to connect, nothing happens. The only way to get wifi data again is to tell my phone to forget the network and hook up to it again.
It's not just my home network. It also happens with the work network.
I told it to not avoid bad connections, so that can't be it, besides, the connection is typically very good. Other devices hook up without problems.
Any clues as to what could be going wrong here and how to fix it? My mobile data is going through the roof because of this.
Another thing, less annoying, but probably quite important to the developers is this odd phenomenon:
I traveled to China recently (from Holland) and after I arrived, I set the timezone manually to Chinese time zone. After doing that, time is in sync with local time.
After I did a reset, the phone's clock had shifted on hour back. The local time was off by one hour, and so was the time my phone showed for my home timezone.
I had to manually set the time to the right time, for things to be normal again.
Same happened on the way back, but the other way around. After a reset, the phone's clock was suddenly an hour ahead.
One other thing; somewhere in the last update I managed to loose root privileges. How do I get it back? I would like to give some apps root access.
Cheers,
Menno

Mainow said:
One other thing; somewhere in the last update I managed to loose root privileges. How do I get it back? I would like to give some apps root access.
Cheers,
Menno
Click to expand...
Click to collapse
Hey, Im not too sure about the Time changing problem, but I've found on CM12 that Root Access is disabled by default.
You need to open Developer Settings, Root Access; then change the setting accordingly.
Hope that helps

Mainow said:
Hi there,
I'm using CM 12.1, 20150817 version. It's working well, apart from one really annoying thing:
My wifi will not reconnect to networks. Or at least most of the time.
If I set up a new network, it all goes very well, but as soon as I'm out of reach and come back in reach, something goes wrong. My phone sees the wifi network, but doesn't connect. It's in the list of available networks, but just doesn't connect at all. If I manually tell it to connect, nothing happens. The only way to get wifi data again is to tell my phone to forget the network and hook up to it again.
It's not just my home network. It also happens with the work network.
I told it to not avoid bad connections, so that can't be it, besides, the connection is typically very good. Other devices hook up without problems.
Any clues as to what could be going wrong here and how to fix it? My mobile data is going through the roof because of this.
Another thing, less annoying, but probably quite important to the developers is this odd phenomenon:
I traveled to China recently (from Holland) and after I arrived, I set the timezone manually to Chinese time zone. After doing that, time is in sync with local time.
After I did a reset, the phone's clock had shifted on hour back. The local time was off by one hour, and so was the time my phone showed for my home timezone.
I had to manually set the time to the right time, for things to be normal again.
Same happened on the way back, but the other way around. After a reset, the phone's clock was suddenly an hour ahead.
One other thing; somewhere in the last update I managed to loose root privileges. How do I get it back? I would like to give some apps root access.
Cheers,
Menno
Click to expand...
Click to collapse
Are you running a Lollipop modem? If not, flash a Lollipop modem.

LogicalJunkie549 said:
Hey, Im not too sure about the Time changing problem, but I've found on CM12 that Root Access is disabled by default.
You need to open Developer Settings, Root Access; then change the setting accordingly.
Hope that helps
Click to expand...
Click to collapse
Thanks, but how do I find "Developer Settings"?
I went through the system settings and couldn't find it.
Cheers,
Menno

Lennyz1988 said:
Are you running a Lollipop modem? If not, flash a Lollipop modem.
Click to expand...
Click to collapse
Hi Lenny,
OK, thanks, but how do I find out if I'm running the right modem?
Or where does one find the right modem? I just flashed the files from this thread: http://forum.xda-developers.com/gal...lop/exclusive-antaresone-alucard24-s-t3066696 , using TWRP. I came from the previous version 12.0, but my OTA update had failed, so I did a clean install.
I'm assuming the correct modem would be in the zips?
If not, where can I find it?
Menno

Mainow said:
Thanks, but how do I find "Developer Settings"?
I went through the system settings and couldn't find it.
Cheers,
Menno
Click to expand...
Click to collapse
Oh, go into About Phone, then find Build Number.
You have to tap at this button 7 times in quick succession and it should enable the Developer Settings back in the settings menu.
Be careful messing around in Developer Settings though, some options in here are harmless, but others can really screw with your Android

Phone shows network but no data connection or calls possible

I have purchased a used Note 4. It was already rooted so i went ahead and installed Nameless ROM and the appropriate bootloader_modem.
Now, i have no data connection and can't make any calls. Even if the bars show that there is coverage. WiFi works fine.
My first idea was to revert it to stock so i downloaded the N910GDTU1COJ3_N910GXSA1COJ3_XSA stock rom and flashed it in Odin. Full wipe and cahce clean after the flash.
I am still facing the same problem that the phone doesn't have data or voice service. Any ideas what else to try or what could be the problem?
TIA

Anyone?

for me...i always lost signal... i dont know why...910f

Same issue
Went back to stock ROM a few months ago, but this has just started with me. 4 days and not able to connect to any data service.
Tried new Sim and manual network selection, just refuses.

dosada said:
I have purchased a used Note 4. It was already rooted so i went ahead and installed Nameless ROM and the appropriate bootloader_modem.
Now, i have no data connection and can't make any calls. Even if the bars show that there is coverage. WiFi works fine.
My first idea was to revert it to stock so i downloaded the N910GDTU1COJ3_N910GXSA1COJ3_XSA stock rom and flashed it in Odin. Full wipe and cahce clean after the flash.
I am still facing the same problem that the phone doesn't have data or voice service. Any ideas what else to try or what could be the problem?
TIA
Click to expand...
Click to collapse
Hi @dosada, i guess I.have the same problem as you, I can't connect to any 3G or 4G anymore. Now, I only can use 2G and Wi-Fi. so try to put network mode to 2G only, because if you put network mode in 4g or 3g or 4g/3g/2g automatic or 3g/2g automatic you will always end with Emergency calls only or no service. I already asked help for that but no one can solve it. I already tried everything I know but no way, no one can solve it. So just courage and let us know if you get solution somewhere.
I think that it is the last time that I use or buy a Samsung phone, they really suck recently. it's better to spend our money to buy other phone than Samsung, they lost the trust of their customers. They were number one but now...puffff...
Sent from my SM-N910S using XDA Free mobile app