A cellular network or mobile network is a radio network distributed over land areas called cells, each served by at least one fixed-location transceiver, known as a cell site or base station. In a cellular network, each cell uses a different set of frequencies from neighboring cells, to avoid ...

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3
votes
1answer
396 views

DNS blocking on mobile networks?

(I apologize ahead of time if this question might be misplaced; let me know if there's a better place to ask it.) I'm using my HTC One phone on Sprint's network in NYC, and noticed that my phone ...
3
votes
1answer
319 views

New android user; switching between wifi and mobile data

When I leave the office my S4 doesn't seem to want to connect to mobile data. So, I end up with no connection at all. Turning mobile data off and on does nothing at all, I seem unable to establish a ...
2
votes
1answer
3k views

No Service on Galaxy SL GT I9003

I have a Samsung Galaxy SL running Android 2.3.6. I bought a new battery and it was working perfectly until I put on recharge. Immidiately after I put it for recharge, it started showing "No ...
2
votes
1answer
1k views

Samsung Galaxy Nexus 4.1.2 Unable to connect to mobile network

I recently purchased the handset from the US and currently using it in Vodafone (India) . I upgraded the firmware to 4.1.2 it was working fine and then all of a sudden I am not able to connect to any ...
2
votes
1answer
3k views

Mobile network turns on by itself after Android 4.0.3. update

I'm having HTC Sensation and I use wi-fi on a regular basis instead of mobile network (bad data plan). For the old Android version there was no problem, I just switched of background syncing and set ...
1
vote
1answer
97 views

How do I change DNS settings for 3G?

So I can use Twitter. It is okay when I use WiFi. But in 3G I cannot change DNS.
1
vote
1answer
6k views

Which modem firmware for Samsung Galaxy S (GT-I9000) works best with the mobile networks in Russia?

Trying to use a Samsung Galaxy S device coming from China or Korea in Russia lead to the observation that the quality of the connection to the mobile network is much worse than on Samsung Galaxy S we ...
1
vote
1answer
590 views

Problems connecting to IMAP email account on 3G/4G

Ever since I got the JRO03O OTA from Verizon on my Galaxy Nexus, I've been having problems retrieving email over a 3G/4G connection. After the sync times out (I assume it times out, because it takes ...
0
votes
1answer
50 views

Some applications on my xperia z1 mobile won't be able to use internet over Mobile data where the other apps use it normally

Some applications on my xperia z1 mobile won't be able to use internet over Mobile data where the other apps use it normally. For example I can't use "Facebook" neither "Gmail " where I can use ...
0
votes
1answer
22 views

Use 2G instead of 3G on Samsung Galaxy SL I9003

I have a Samsung Galaxy SL I9003 mobile phone. I prefer to use 2G data connection instead of 3G but I am unable to turn off the 3G service in my phone. How can I turn off the 3G service and use 2G ...
0
votes
1answer
35 views

How to Switch from 4G to 3G Galaxy Epic 4G SPH-D710?

I have received Galaxy S2 Epic 4G SPH-D710 unfortunately, 4G connection is not available where I live Just only 3G is available. When I turn on 4G hopefully It maybe switch to 3G automatically I get ...
0
votes
1answer
502 views

Can't have G,E,3G,H+ in the network bar (thus no internet connection unless on wifi)

I have a new Samsung Galaxy Note 3 Neo, I have a question. Since I bought it 2 days ago, the internet connection is fine (with or without wifi) and it shows either G/E/3G/H+ symbol. But, I once get ...
0
votes
1answer
52 views

Nexus 5 not getting net data even though its having hspa+ range

I tried rebooting my phone, reset to default on APN , safe mode but nothing seems to work.I still dont get internet on my phone.I'm from India and connection is docomo. Any help would be greatly ...
2
votes
0answers
196 views

3g network connection Problem while using data

For last two months or so, the situation in my two years old international HTC One X is that the data is not connecting when it is on 3g network but it is working absolutely fine with 2g network. when ...
2
votes
0answers
499 views

“Data roaming” unchecked but connected to foreign network for data anyway

I am using a Galaxy Nexus LTE running Jelly Bean 4.2.2 with service from Verizon Wireless in the U.S. In Settings > Wireless & Networks > Mobile networks, I have: Data enabled: on Data roaming: ...
2
votes
0answers
2k views

My Google Nexus S won't connect to network

I have a problem with my Google Nexus S. Yesterday I was out in the city and my battery meanwhile died and the phone shutdown. The next day when I charged the phone, I noticed that it is showing no ...
1
vote
0answers
38 views

How can I change preferred network type through a script (or terminal command)

I'm currently having attempting to create a workaround for a problem that is plaguing a ROM that I'm using. While my phone and ROM are capable of using LTE, and use it perfectly fine, the "preferred ...
1
vote
0answers
41 views

Listen to Address Resolution Protocol (ARP) packet

Can an Android application generate or listen to ARP packet without root privilege ? Thank!
1
vote
0answers
910 views

Tasker (switch off mobile data automatically) causing trouble under CyanogenMod

I used to use this tasker profile for nearly a year now already and it used to work fine, untill I recently switcht from the Samsung default UI TouchWiz to CyanogenMod on my Galaxy Note (1). The ...
1
vote
0answers
185 views

my samsung galaxy w doesn't register on 2g network

I've tried factory reset and manual search but no solution for the problem it works on i have flashed this rom: I8150JPLM7_I8150OJPLM4_I8150XXLMB, and no solution.
1
vote
0answers
347 views

Losing network connections when using GPS

I'm having the same kind of problem as described in these threads, using a rooted HTC One S with Dark Jelly S rom: Thread on XDA-Developers Thead on CyanogenMod Forum When activating GPS while using ...
1
vote
0answers
1k views

Samsung Galaxy S3 “Not registered on network”

It had stock 4.0.4 -> could call. I've flashed FoxHound ROM -> after a while, when I try calling, it says "Not registered on network" . Tried GalaxSim, but everything looks ok. Restored back to ...
1
vote
0answers
665 views

Android 4.0 - cannot set preferred network type

I want to change the preferred network type from the current setting of 'unknown'. I go into the tablet using the *#....access and it lets me see all the various info sections. When i go into Tablet ...
1
vote
0answers
783 views

Galaxy S Advance Network Issues

I recently bought a Galaxy S Advance GT-I9070. Its not even a week since I've bought the phone. When this phone goes into an area with low or no network coverage it loses coverage and never regains ...
0
votes
0answers
9 views

Why is there Infinite UDP broadcast traffic on tethering my android phone to computer?

I have a android samsung galaxy chat b5330. When I connect it to my Ubuntu Linux computer using usb tethering, an infinite sequence of similar UDP traffic is noted by Wireshark. The summary of the ...
0
votes
0answers
21 views

not registered on network and seems the imei is changed

I have an international version of galaxy s3 gt i9300 it had android 4.0.4 working fine when i bought it(second hand) then i upgraded it to 4.3. Since then it performs as a normal device would but can ...
0
votes
0answers
21 views

networking problem in huawei and phone often disconnect

my maxis network/bars often disconnect. anything wrong with the phone? I have tried to format but still the same.
0
votes
0answers
16 views

Force Galaxy Nexus to always login to one network

My (Polish, Play) carrier has signed internal agreements with probably all of top carriers in my country. This allows their SIM cards to login and us both mother network and all other networks ...
0
votes
0answers
75 views

Samsung Galaxy disconnected from network

My GTS5300 Samsung galaxy shows mobile network disconnected. How do I connect? What are the settings?
0
votes
0answers
43 views

What could explain duplicate network operators being listed on Nexus 5 with Kitkat 4.4.4?

I have recently purchased a Nexus 5 phone using Videotron as my service provider (Quebec/Canada). Videotron has recently launched its LTE network, and ever since I have switched my SIM so that I could ...
0
votes
0answers
121 views

4G mobile data being used even when mobile data setting is off?

I have a Motorola Moto G, the 4G version, with the original ROM upgraded to the latest version (4.4.4 official from Motorola). The first thing I did when I got it was the same I have done when I got ...
0
votes
0answers
62 views

Limited mobile network connectivity with cyanogenmod 11 on HTC

I am facing network connectivity problems on a HTC Desire phone running cyanogenmod 11. While not connected to any WLAN I do receive mails via IMAP, can send mails via smtp but cannot connect to any ...
0
votes
0answers
15 views

how to reset the PGW connection

My mobile phone on T-Mobile US seems to stay on a given PGW for days on end, having the same external IPv4 address. Very often, their PGWs get stuck after a while, or, they reboot all of them, and I ...
0
votes
0answers
42 views

Does unlocking the bootloader pose any carrier/network related risk?

I'm on Motorola's website, reading over risks and warnings related to unlocking the bootloader, two of which peaked my concern: You may lose some key functions like telephone, radio, and audio ...
0
votes
0answers
73 views

Sudden surge in network usage by unknown processes

Phone Details: Model: Nexus 4 (mako) Current ROM: Paranoid Android 4.3-BETA2 Xposed Present? Yes I flashed the new Paranoid Android 4.4- BETA1 today and noticed my phone downloading something. I ...
0
votes
0answers
827 views

Galaxy S3: I747UCUEMJB upgrade - baseband unknown

Last night I updated my Galaxy S3 from Cyanogenmod 9 to CM 11. One of the steps was to upgrade the bootloader. Everything went fine, and I'm now on CM 11-2014-06-02-d2lte. The problem: can't connect ...
0
votes
0answers
22 views

Apps are not running in the background in certain networks

When hangouts, Gmail or other apps that receive messages are not active, they are staying suspended. For instance, in hangouts I will only receive pending chat when opening the respective chat window. ...
0
votes
0answers
50 views

mobile data reset ask not again prompt

it seems I have accidently ticked the ask not again checkbox when I have activated mobile dara. How can I reset this option so Android asks me again before activating mobile data?
0
votes
0answers
102 views

Device Performing slowly on poor network strength

Hii Everyone I am Using Samsung Galaxy Grand duos (GT-i9082) upgraded to jelly bean 4.2.2 and it's working good , but whenever SIM loses signal strength then device's performance is poor and it's ...
0
votes
0answers
98 views

I can't connect to server via PAW server app? Why not?

I have installed PAW server, and it says to open the provided IP address in a web browser and port number to configure the server (from device itself). I try it, and the page loads for a minute or so ...
0
votes
0answers
126 views

Mobile browser and google apps in mobile internet fails to connect, but everything else can use connection

My android phone cannot browse any internet page and use google apps on 2G/3G network. However I can freely ping anything from terminal emulator. I can use at as AP point (I am doing it now). Wifi ...
0
votes
0answers
183 views

Use HTTP Proxy with Applications

My college network requires use of proxy settings when connecting to wifi. This restricts internet usage to the browser as it is a http proxy. I have been looking to divert the internet for app ...
0
votes
0answers
128 views

an not find the t-mobile network, but it shows always: AT&T, Sprint and 311-660

I replaced my Nexus 5's display. Now my device can not find the t-mobile network. (it sporadically works) But it shows always: AT&T, Sprint and 311-660. T-mobile reception on other devices is ...
0
votes
0answers
1k views

Why isn't my SIM card working after factory reset?

After doing a factory reset on my Micromax Ninja A89(dual sim), I am unable to register on my service provider. Though my sim was working fine on the same device before the reset, but it is not ...
0
votes
0answers
194 views

network problem

I'm having a network problem with my Samsung Galaxy grand device. Sometimes while trying to make a call, the device displays a message like "Not registered on network" and the call doesn't get ...
0
votes
0answers
516 views

Samsung Galaxy S3 Mini (GT-I8190) not getting 2G Network but 3G (WCDMA) is working fine

Kindly Plz help to resolve my issue. I had bought New Samsung S3 Mini (GT-I8190) from Dubai & Taken to India. but my Mobile is not detecting 2G Network neither registering Network properly. But ...
0
votes
0answers
179 views

I can't connect to a device that is connected with GPRS

My android 2.3 phone is connecting to the internet using the GPRS network and I get a new IP everytime I reconnect. So now I try to connect to my phone which is connected to the internet - the ...
0
votes
0answers
7k views

SIM card not detected

I own a GIONEE P2 mobile phone with MTK6572 processor and android 4.2.2. I successfully rooted the phone and it was working fine until my internet stopped one morning and upon restarting the phone, it ...
0
votes
0answers
3k views

My internet doesn't work on my phone any more

The internet doesn't work on my phone. It worked with my orange sim card and it previously worked with this sim card, the problem seems to have arisen after my number was ported from the orange sim to ...
0
votes
0answers
223 views

SGS2 I9100 Suddenly relocked itself (network)

I was just using my phone, when the network dropped out completely. I rebooted, but it just wouldn't connect. When I toggled airplane mode, it asked me for my network unlock pin (my device is ...