(Mobile) Internet is not working - Android Q&A, Help & Troubleshooting

Good day y'all,
I have a problem with the mobile connection on my phone, which is a Samsung Galaxy S4 (i9505) with CM10.1.
The mobile connection only works for a couple of minutes when i reboot the phone. After that time, it says "Offline" or "No network connection". I can still do phone calls though, so the connection to the celltower is still established.
APN settings are correct.
Data enabled is ticked
Data roaming is ticked (I need this, because my provider is using the mobile network of another provider)
Turning aeroplane mode on/off will not solve it.
Re-enabling data/-roaming will not solve it.
Switching to 2G mode will not solve it.
Searching for network again will not solve again.
Only reboot solves it.
Any idea what is going here? It's quite annoying.
Thanks.

Just reflash your rom.

Doesnot help. I am flashing the ROM almost daily plus i erase all caches.

*bump*
Now i tried the following:
Using the SIM card of my wife (different provider) -> no problem
My SIM card in my wife's phone -> no problem
My SIM card in my phone -> only working for two minutes.
I tried to modify the spn-conf.xml file by adding
<spnOverride numeric=”23212? fake_home_on=”23201?/>
so that the network is not seen as roaming network.
Still not working.
Now i changed the MCC/MNC to 23201.
Also not working.
Any idea what else i can modify?

Related

[Q] mobile network state disconnected

ive been using the phone for a few weeks now and it was fine until today, i cant connect to the internet via edge . ive tweaked with all the settings but nothing seems to work. everything else is fine . ie i can make calls and send text's but i cant connect to the internet. i checked under the status and it shows the mobile network state is disconnected. i have no clue as to wat this is since im new to android.
pls help!
Have you turned MOBILE DATA off via the power on/off menu .
jje
ive checked that too.
Go to Settings- Wireless and Network- Mobile Networks- Access Point Names and see if the APN is ticked or not or the correct APN is ticked.
everything is back to normal again,it connected to the internet, by itself . must be a random bug in the os
problem solved. peace
I have experienced the same thing with my phone, except that it shows "activated". After a while it just started working again.
I've had the phone for a couple of months now and everything has worked fine till now, a little bugs here and there but no issues. A few weeks back (on android 2.3.3) I was unable to make or receive calls, but surprisingly was able to make text messages. I tried everything, turning flight mode on/off; the phone on/off; etc. I was on the verge of contacting Samsung but then suddenly the thing started working once I came back home from the office.
There has been no problems till then but today suddenly (now on android 2.3.6) the outgoing calls no longer work, same for outgoing text message; but I still get incoming calls and messages.
Just to be sure that this wasn't a SIM or service issue, I tried changing SIM's (different SIM did not work on the phone) and used my SIM on different phone (where it worked).
Also 3G doesn't work as well, but connection here is spotty so I wouldn't trust that. The only message I see different on the 'About Phone' tab is 'Mobile State-Disconnected'. I have full signal strength and all that.
My thoughts are that it was, or rather is a phone specific issue and would appreciate someone else's thoughts on the matter. As to my problem I assume it will sort itself out in a little while.
FYI: Samsung Galaxy S2; Android 2.3.6; NOT rooted; Indian version; On Airtel Mobile Network.
Mobile network state disconnected.
Hi guys, I have the same problem with my network connection also my 3g does not work anymore, I`m play with some secret codes like a ##72786# on my epic 4g touch sprint phone flashed to metro pcs and now I have no 3G service. In the setting menu under network status say Sprint. How can I get my 3g back?. The mobile net. 3G is on and the wifi is off. I need to change the network to metro pcs in the status setting and how can do that? Thanks for your help and sorry for my bad English.

[Q] Unable to connect to mobile network

So I used my phone this morning and all was fine and dandy, a couple of hours later and the phone could not connect to the mobile network. I triedsaving my network's APN settings that iI got from their website, but it would not save, I tried to save the settings using this trick where I rebootthen save the settings or sth like that to no avail. I tried dialling *#*#4636#*#* and changing the network type to cdma , but the setting would change for a split sec then return to unknown. After scouring on the threads for some time I thought i'd flash Cyanogenmod, still no network. Somebody please help me here I have tried everything I have seen on the threads. I was using vanilla root box 4.2 when this happened, along with the stock kernel. Wi-Fi works fine BTW. I also tried resetting APN settings to default, but I end up with the same empty screen with no APN settings whatsoever. I never touched these settings before this unfortunate event. Maybe if I flash a modem or radio(I hear one of those is responsible for connecting to the mobile network).
Modem and radio are the same thing, flashing the right one for your country won't help the apn issue. Flashing a stock 4.1.2 rom and factory reset to test if it's hardware or software problem. First check with your network that data is working in your area.

[HELP] No Network Suddenly

Hey guys
my SGS3 GTi9300 suddenly does not detect any mobile network. I cannot make or recieve any calls :crying::crying:
I have tried using a different sim card and same issue. No Service.
My sim card in a different phone works properly.
Manual searching of the network does not work.
reboot, airplane etc does not work.
My IMEI and everything is proper I havent made any changes in the phone. A very Spontaneous problem.
everything else works fine. wifi bluetooth etc.
I am from India on LiquidSmooth v3.2 rom. Android 4.4.4.
Network provider Reliance.
Please help
Try a different modem.
The one you WAS using will work but do you know what one it was or have a back up of it? I'm from the UK so I don't know what modem you would use. Also check apns as this happens with that to. All this fails go back to stock and test. If that is still a fail it time to check if imei is blocked by provider . I belive India networks now block imei that have been reported.
Solution
Surprisingly changing the network mode from 3g to 2g worked. Now I have network.
My service provider sent me the settings again maybe they got deleted or something.

Not connecting to Network Operators?

Alright, so here's the problem:
I've had my Samsung Galaxy S6 Edge for around 4months now, having no problems with it what-so-ever.
The other day (Tuesday) having waking up, my mobile wasn't able to send or receive phone calls or SMS messages, but it was still connected to my providers internet.
I can still browse the web using my provider, giffgaff, under 4G internet but when I try to send a text or phone anyone it says: "Not registered on Network".
I've contacted my network provider and they are adamant it's nothing to do with my network, also tried my sim in another phone and it works.
Now, I checked my IMEI and it was unblocked.
Tried rooting, factory resetting my phone and putting different roms on, nothing seems to be working. My internet still works on my phone, just my network is unable to connect.
When I manually search for network I find: Vodaphone, O2, EE, 3 Network. Having tried to load it up on O2 (Giffgaff uses O2 and my network provider asked me to do so) it says it's unable to connect.
I'm just wondering, is there anyway to resolve this?
Also, my signal bar is full, and the local reception for my Network is "excellent".
Hello, i've been having the same problem and couldn't resolve this with my network provider aswell i can get connected to the network but soon as it registers to 3g it kicks me of my network operator the only temp fix i could find was go to settings, mobile networks, network mode, gsm only, then register to network to receive and send calls and texts, i've tryed everything and it's the only thing i can suggest as a temp fix .:good:
stringy94 said:
Hello, i've been having the same problem and couldn't resolve this with my network provider aswell i can get connected to the network but soon as it registers to 3g it kicks me of my network operator the only temp fix i could find was go to settings, mobile networks, network mode, gsm only, then register to network to receive and send calls and texts, i've tryed everything and it's the only thing i can suggest as a temp fix .:good:
Click to expand...
Click to collapse
My APN internet works on the setting you're saying but I'm still unable to connect to my Network Operator?

Faulty network mode auto select

Hi,
I've faced this problem every since April. When I select 4g/3g/2g auto and am in a 4g area, almost always my phone shows the 4g icon but I'm unable to use the internet. Then if I change to 2g/3g mode I switch back to 3g/2g network and can use my internet but of course not at 4g speeds. This is driving me crazy. I've paid so much money for a great phone and network and I can't use it!
"Solutions" suggested by my network provider which didn't work:
1. Reset APN settings
2. Cleared browser cache
3. SIM card changed
4. Factory reset
5. Tried my SIM in another phone- it seemed to work alright in the other phone.
I'm about to send this phone off for diagnostics but it's such a hassle. Any suggestions?
Hello.
I have the same probleme.
The phone is bloc in 4g but i not data ....
I have not find the solution..
Please help !

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