Database Develop

App Blocking 3g Access

I currently have something on the phone not allowing 3g access. I can't seem to figure out what it is, but I believe I narrowed it down to an App. I did a wipe and clean rom install and 3g was working fine. I did a titanium backup restore of all apps with data and now 3g isn't working again. Anyone know of an easy way to pinpoint what is blocking my 3g? I tried ending all tasks in advanced task manager, but I'm guessing the phone would need a reboot to bring back 3g?

Have you check you settings-wireless & networks-mobile networks-use only 2g networks?

ya I tried using only 2g network, I even tried researching the network and it finds tmobile in the settings. I even went as far as getting a fresh sim card prior to wiping the phone. Somehow after an app/data restore from titanium back up, tmobile internet no longer works still. It's why I wiped in the first place.

1) Double check your APN settings in settings > networks > mobile networks
2) In dialer, dial *#*#4636#*#* > choose phone info > scroll down > verify that 'set preferred network type' reads WCDMA preferred.
3) Also in settings, make sure you didnt set 'use 2g only'. Same location as #2 above

Thanks for your help. I actually just did a nandrestore from an image I had that was a week old and internet came back, so it has to of been something I done within a weeks time. I just hope I don't end up hitting the app that stopped it, if I think it was one, because thats the only thing that makes sense to me.

I have your same problem could you be so kind as to attach the img you put so I try too? thanks

victor.barba said:
I have your same problem could you be so kind as to attach the img you put so I try too? thanks
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Then you will have his phone.

you mean....?

i Think i have a similar problem... I turn 3g on and after half an hour i cannot access the internet anymore... The sign in the notification area shows the "sent arrow" blinking but the receive arrow does nothing... I have apndroid to control my 3g usage... I unistalled it, did a reboot but again the problem persists... Do you have anything in mind???
I forgot to mention that the exact same thing happens with 2g network as well

victor.barba said:
you mean....?
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When someone does a nandroid backup, it backs up all the data on the phone. All of it, if you restore it to your phone, you will be logged into google as him, you will have all his contacts, messages, settings etc. If one of you downloads something, it may download on both machines. The only way to fix it would be to wipe both of them.

i have the same problem. two days ago its working fine. i just turn on turn off the wifi and it just works again.

Can also try turning the airplane mode on/off. This problem occurs if you use APNdroid or similar, or toggle mobile connection on the Desire ROM.

tired of trying and try to wipe, reset, several rom, so I decided to send it to HTC in England ... and the problem is which has the bootloader unlock my ...

3g/H packet data problem - N7000

Hi there! would like to seek your help regarding my galaxy note, I encounter packet data on/ff and cannot connect to mobile data (internet) but my sim card is working (can send sms and call). i just put my phone yesterday to flight mode and after that it cannot able to connect to internet. I did factory reset and some wipe of cache.. is there any advice? my phone is rooted already with franco kernel (stock ICS rom only). Please help Sir.

Please do not "FACTORY RESET" , You could potentially brick your phone.
1. Try to see if you have your "DATA" on. With DATA off 3g/h/h+ will not work only wifi would.
2. Worst case scenario, take out your SIMCARD and put it back again.

hackerboi said:
Please do not "FACTORY RESET" , You could potentially brick your phone.
1. Try to see if you have your "DATA" on. With DATA off 3g/h/h+ will not work only wifi would.
2. Worst case scenario, take out your SIMCARD and put it back again.
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Hi, Thanks for the reply,
I already did some of the basic steps, It just so happen that the history of this problem was because after I put my phone to "flight mode for about 5 hours" and the the packet data icon "3g/H" were no "DOWN arrow" color orange where as I know is a sign of good connection. but the icon only lit the "UP arrow" please help

May also be a issue with having incorrect APN information (Some carriers do not Automatically push out the right details)
Under settings> Wireless And Networks > Mobile Networks > Access Point Names
Check the listings are correct for your network.

Ranger58 said:
May also be a issue with having incorrect APN information (Some carriers do not Automatically push out the right details)
Under settings> Wireless And Networks > Mobile Networks > Access Point Names
Check the listings are correct for your network.
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Hi, Actually my phone's packet data was working well before I put it in "flight mode" meaning my APN settings is OK. for reference here are some of my screen shots which I edit to see the ICONS status,,thanks for the help!.

Don't know what still seems like a apn issue. Only because I would expect atleast one reply from the network during the connection discussions.
The fact that the orange arrow never lights up to me indicates that the network never gets the sent packets.
Have you tried anything like the apn on/off alps from the the playstore.
Otherwise I cannot see why having airplane mode on for a while would permanently ruin your data connection
Sent from my GT-N7000 using Tapatalk 2

Ranger58 said:
Don't know what still seems like a apn issue. Only because I would expect atleast one reply from the network during the connection discussions.
The fact that the orange arrow never lights up to me indicates that the network never gets the sent packets.
Have you tried anything like the apn on/off alps from the the playstore.
Otherwise I cannot see why having airplane mode on for a while would permanently ruin your data connection
Sent from my GT-N7000 using Tapatalk 2
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Hi, yup but as you know some apn tweatering app is no longer feasible with ICS,
Yes, I am also not convince about after flight mode / airplane mode activation that causes my phone not to connect to the internet. I guess this is related to root bug, this was my 1st time to enable flight mode under rooted condition so I wonder that this might be the root caused. Can anyone suggest to unroot? Please advice, Thanks and Mabuhay!

Bump
Sorry to be bumping this old thready but was the OP able to ressolve the problem? I have been having exactly the same issue but only intermitantly, if I reset my phone everything is fine for a while and then all of a sudden I loose the orange arrow and will only see green.
I am unable to recieve calls or make them, no internet etc. I am on Tmobile UK now EE, have gone through the standard error checking with tmobile but no luck, first they said it was the network being down and no they say it's my phone but I don't see how it's been fine for ages and all of a sudden I have this problem.
It's totally random, I have decent reception so I have say 3g or h+ with 2 or 3 bars but no orange arrow
Any ideas?

[Q] CM10 and no connection to internet

Hello all,
I flashed CM10.0 a few weeks ago and everything was working fine up until 2 days ago, now my I9000 won't connect to the internet at all. I was using Easy Battery Saver which cancels the data signal everytime the phone is idle, but this stopped turning the connection on. I uninstalled it hoping the phone would revert back to normal but can't get connected. I restored the app hoping it would pick up the settings again but still no joy.
I have wiped everything including user data and the caches, done a factory reset and reflashed the rom. The signal did return for about 30 minutes after the flash but the connection has since died again. I've tried switching on the roaming and national roaming, also no luck.
Does anyone have any idea what might be causing this or even how to fix it?
Thanks in advance

Boogaloo27 said:
Hello all,
I flashed CM10.0 a few weeks ago and everything was working fine up until 2 days ago, now my I9000 won't connect to the internet at all. I was using Easy Battery Saver which cancels the data signal everytime the phone is idle, but this stopped turning the connection on. I uninstalled it hoping the phone would revert back to normal but can't get connected. I restored the app hoping it would pick up the settings again but still no joy.
I have wiped everything including user data and the caches, done a factory reset and reflashed the rom. The signal did return for about 30 minutes after the flash but the connection has since died again. I've tried switching on the roaming and national roaming, also no luck.
Does anyone have any idea what might be causing this or even how to fix it?
Thanks in advance
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I am just guessing, but as from what I understand you uninstalled the application when you were not having the internet connection working. Right? The correct settings have possibly remained overwritten (some applications block the outgoing data traffic by changing the connection settings). Give APNDroid a try and if unsuccessful try going to your phone operator webpages and find the correct connection settings.
I am using CM10 with APNDroid which works fine. However sometimes I cannot connect to 3G as well. Switching the APNDroid on/off couple of times or rebooting solves the issue.

nameh said:
I am just guessing, but as from what I understand you uninstalled the application when you were not having the internet connection working. Right? The correct settings have possibly remained overwritten (some applications block the outgoing data traffic by changing the connection settings). Give APNDroid a try and if unsuccessful try going to your phone operator webpages and find the correct connection settings.
I am using CM10 with APNDroid which works fine. However sometimes I cannot connect to 3G as well. Switching the APNDroid on/off couple of times or rebooting solves the issue.
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Click to collapse
Thanks for the response mate. You guessed right, APNDroid hasn't fixed it and I haven't been able to find APN settings other than the one that is already in my phone. Might reverting to stock solve the issue? My contract is up at the end of the month so I could handle living with GB until then .

Hi again, reverting back will definitely not solve the issue. From what you had said I understand that the internet settings are somewhat messed up.
These settings are bound to your SIM card. By up/downgrading ROM these remain.
Could you check if your APN settings are correct (I assume you need to check with your provider).
Good luck and keep us informed.
Sent from my GT-I9000 using xda app-developers app

Just found the APN settings online. Reset my APN and it looks to be working. I'll keep an eye on it just in case but I think either the ROM or the App messed up the user/password on the APN.
Hopefully it's all fixed. Thanks for all the help.

first try apn tweaker from market then if no luck what worked for me
1 flash darkyrom 10.2 re
2 alliancerom jw4
3 then jw8
working well for past week

[Q] Losing data connection after losing and regaining signal

I have found that whenever my phone loses signal and then regains it, I have no data connection until I restart the phone. Even toggling airplane mode or manual signal search does not restore data. I have tried disabling 4G but that doesn't make any difference. I also don't have WiFi on as I never use it.
Does anyone else have this same problem and know a solution? It is extremely frustrating having to restart my phone up to 5 times a day and not receive emails etc.

I had more or less the same. What helped in my case was adding the apn of my provider manually instead of letting the network and phone handle it.

Info
cantthinkofone said:
I have found that whenever my phone loses signal and then regains it, I have no data connection until I restart the phone. Even toggling airplane mode or manual signal search does not restore data. I have tried disabling 4G but that doesn't make any difference. I also don't have WiFi on as I never use it.
Does anyone else have this same problem and know a solution? It is extremely frustrating having to restart my phone up to 5 times a day and not receive emails etc.
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Click to collapse
this can cause by network or firmware bug
you can manually add APN if system delete it then repair Firmware by PC Companion
:good:

I have the same issue.
Have you managed to resolve it yet?

adamryd said:
I have the same issue.
Have you managed to resolve it yet?
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Not yet. I have tried deleting the apn end adding it again myself but it's the same.

adamryd said:
I have the same issue.
Have you managed to resolve it yet?
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Click to collapse
my problem may be slightly different in that I could not connect to Internet when out of wifi range unless I did a restart.Resolved by switching off stamina modes.

You coult try this: http://forums.androidcentral.com/so...ia-z3-losing-data-connection.html#post4235021
It works for me. Next week the Z3C will be updated to Lollipop. Let's hope it will solve this bug.

Cellular Connected but No Internet (17.0240.2007.27)

Version : WW-17.0240.2007.27, non-root
Hey everyone, I have been using the latest firmware of the ROG Phone 2 as they release from the Asus website, the latest firmware has been fine although suddenly the cellular data has stopped working, (besides some apps I.e Spotify recognises a data connection and can stream any cached songs). The icon shows the 4G+ but with the X for No Internet. Phonecalls and MMS work fine.
Update 6/8/20 (temporary-solution found!)
From some playing around I found a solution that seemed to fix it for me.
1. Turn the phone off
2. Remove the SIM card tray
3. Turn the phone on (Without the sim card tray inserted)
4. Re-insert the sim card tray after the phone is all properly loaded
Update: 9/8/2020
Cellular stopped working again

Did you check the APN setting?

airjoe said:
Did you check the APN setting?
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Yeah everything was configured correctly

Did you set private DNS? I experienced I set private DNS to block some of ads, and the DNS server suddenly down which cause no internet but the signal still show 4G+.

Same problem as you.
Hey there,
I am having the same problem as you as well. After i had updated to the latest, my internet has stop working. It shows 4g,but with an x below. However, i am able to use sms, and phonecalls. I tried toggling the mobile data, it worked for a while. But after a few mins, it went back to the same. Any way to go back to the previous update, please help.
regards
Magan

airjoe said:
Did you set private DNS? I experienced I set private DNS to block some of ads, and the DNS server suddenly down which cause no internet but the signal still show 4G+.
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Click to collapse
No, I haven't setup my DNS with the private DNS feature but the Wifi menu, and I'm not sure if that even applies to cellular data anyway.

goomagan said:
Hey there,
I am having the same problem as you as well. After i had updated to the latest, my internet has stop working. It shows 4g,but with an x below. However, i am able to use sms, and phonecalls. I tried toggling the mobile data, it worked for a while. But after a few mins, it went back to the same. Any way to go back to the previous update, please help.
regards
Magan
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Click to collapse
Hi Megan. I have found a solution that worked for me, check the bottom of the post for my solution, best of luck

dalebaxter01 said:
Hi Megan. I have found a solution that worked for me, check the bottom of the post for my solution, best of luck
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Hi. I have a Note 10 plus 5g and I have the same problem after going from stock to Dr Ketan Rom. I try to find your solution but I don't see it. can you tell it to me? maybe will work. thank you