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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10
votes
2answers
696 views

What does the “Aggressive Wi-Fi to Cellular handover” option in Developer Settings do?

In Android Lollipop 5.0, I noticed that "Developer Options" features a checkbox for "Aggressive Wi-Fi to Cellular handover" that is unchecked by default. Does anybody know what this setting does and ...
8
votes
2answers
19k views

How can phone companies detect tethering (incl. Wifi hotspot)

Mobile network operators (also: telephone companies, telcos, providers) sometimes offer low cost data packages that are usable only on the phone. Or so, they say. How can they distinguish between a ...
8
votes
1answer
150k views

What is the difference between GSM and WCDMA when switching to manual Network Mode?

I was reading this answer and I need to comprehend this better: What is the technical difference between "selecting GSM" and "selecting WCDMA" in Network Mode settings menu? To save battery life, I'm ...
6
votes
1answer
905 views

Network Connectivity in GSM/WCDMA mode

I am using a Samsung Galaxy S Duos S7562 with Android 4.0. Whenever I disconnect a call, the network vanishes for a few seconds when the phone is in GSM/CDMA auto mode. The network is fine in GSM only ...
6
votes
1answer
9k views

Unable to enable Mobile Network settings (options greyed out). Is there any way to restore lost mobile connectivity data?

I have a HTC Desire HD that up until recently has been running well with a custom ROM. For some reason, the phone started to "misbehave" in a number of ways after about 10 months of painless ...
6
votes
1answer
8k views

Samsung Galaxy S3 keeps losing network connection and need to restart phone to reconnect

I've had my S3 for around 6 months and never had a problem. But in the last couple of days it seems to be randomly losing connection to network (T-Mobile): I have to restart my phone to reconnect. ...
5
votes
3answers
254 views

how can android keep a TCP connection alive when changing network provider?

i'm curious about how android can keep a TCP connection alive while i'm switching from 3G ( mobile data ) to WiFi and viceversa. i'm asking this after i seen that i had an uninterrupted radio stream ...
5
votes
1answer
13k views

Android 4.3 - No internet access, unable to connect to the proxy server error

My Lg nexus 4, received the android 4.3 update last night. I didn't do much on it, opting to sleep peacefully knowing that I had the latest and greatest in android software, but this morning I noticed ...
5
votes
2answers
8k views

Why doesn't my SIM card does allow a connection to this network?

In Android 2.2 from a HTC Desire Z I am frequently finding my phone disconnected from my mobile provider. When I select my provider from the Settings -> Wireless & networks -> Mobile networks -> ...
4
votes
3answers
5k views

Some app keeps turning on mobile data

There is some app that turns on mobile data. I turn it off but on sleep or power up it is back on. It is very annoying and potentially costly since I do not have a data plan. (this seems like an ...
3
votes
1answer
223 views

is AT&T network possible on the Droid a855?

Is it possible to use AT&Ts network on the Droid a855? At all possible? Tough to find a direct answer on the web for some reason. Thanks!
3
votes
1answer
535 views

How can applications be installed on SIM and how do I view and disable them?

I've got a new sim card. After it found the network, soon I've got an sms (supposedly from my operator) saying: Dear client! We are installing applications on your sim card for free. Please enable ...
3
votes
1answer
1k views

Configure Android for ONLY IPv6 on T-Mobile

I figured out how to configure a dual-stack IPv4/IPv6 "Access Point" for T-Mobile connectivity on my Samsung Galaxy Nexus, with stock Android 4.2.2. For some reason, when I visit ...
3
votes
3answers
2k views

data packet automatically activated on gingerbread 2.3.6

I just upgraded my samsung galaxy SL to gingerbread 2.3.6 After that, everytime my data packet is automatically activated all the time. I switch off my mobile network data and lock my phone, and then ...
3
votes
1answer
461 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
339 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
2k views

What are the technical differences between 1X and 3G on Verizon's network?

My Android device (on Verizon) will sometimes display 3G in the status area, and sometimes display 1X. What do these indicate, and what is the difference?
2
votes
1answer
2k views

How to display current location on the home screen?

In my old phone I had a setting called "Area Info - cell information". When enabled it would show the location information next to the mobile network name, like: Vodafone Foobar Street I can't ...
2
votes
1answer
375 views

What is the mobile provisioning website supposed to do?

When I go to Settings → More... → Mobile plan it gives me a message "{mobile operator} has no known provisioning website". Digging into Android source code for WirelessSettings.java I found how URL ...
2
votes
1answer
5k views

Does installing CyanogenMod lock device's network?

today after almost one year using the stock Android version on my Xperia Mini (ST15i, I was on Gingerbread) I decided to flash an official CyanogenMod ROM (CM7). So I first unlocked the bootloader of ...
2
votes
0answers
334 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
520 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
35 views

Battery percentage going down while charging! [duplicate]

(device: Samsung Galaxy S 3) I've just witnessed something rather strange: while tethering to my laptop, with the phone being plugged in a power source (the charger I got with the device) - the ...
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
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 ...
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 ...
2
votes
3answers
2k views

My phone not registering to 2G (GSM only) network

I am using a Sony Xperia Neo L (MT25i). After updating the OS, my phone not registering to 2G (GSM only mode) network. It works perfectly with 3G (WCDMA only or WCDMA proffered mode) network. While ...
1
vote
1answer
666 views

Will the HTC Thunderbolt be able to use AT&T's network?

I'm speaking from a hardware perspective. It supports the 850 and 1900 network bands that AT&T uses, but will it work? The phone is amazing, absolutely destroys the Inspire 4G (which is a complete ...
1
vote
2answers
66 views

Checking mail on mobile data

i use roaming which is very expensive and I search some kind of script or way of solving my problem: there is a possibility to turn off checking e-mail when the android is connected via mobile data ? ...
1
vote
1answer
738 views

Can't connect to phone network, banned?

I need a sanity check here. I was sitting on the train listening to music over 3G, and we went in to a tunnel. Lost the signal, tried to reconnect and couldn't. Now I can't connect to my phone service ...
1
vote
1answer
182 views

How to stop an application using the mobile network

The kindle app on my android phone does not allow me to disable download over mobile (i.e. set it to only download over wifi). Is there any way I can do this externally? i.e. via another app or ...
1
vote
1answer
486 views

How to know my base station?

I am an android user and I would like to know what are the available base stations and what is the base station that I'm getting signals from. How can I know that? Is there a way? Thanks in advance..! ...
1
vote
2answers
7k views

Enable Location Services via Remote Control

I always disable (Google) Location Services on my phone because they are always drain a lot battery (probably because my mobile Internet is very slow). But in case I lose my phone I can't use any ...
1
vote
1answer
374 views

How to block my mobile provider from showing their ads?

Whenever I use apps that have banner ads (I guess that thing is called AdMob?), I get ads from my mobile service provider. This happens only when I connect using the mobile data. I don't have ...
1
vote
1answer
44 views

Limit download rate in android? [duplicate]

I have an irritating friend of mine who has evil eye on my unlimited data plan. I have a few time asked him to do his own recharge but he tends not to. It's so irritating when he asks to tether. Can ...
1
vote
1answer
197 views

How to stop a notification saying “Registering to Network” every few seconds?

On Samsung Galaxy S2 HD LTE SHV-E120K Android v4.1.2 without a SIM I get "Registering to Network" notification repeatedly. How to stop? Thanks.
1
vote
1answer
41 views

Will disabling LTE extend my battery life even if I'm not using it?

I was just wondering, if disabling LTE will improve my battery life even if I'm never using it (there's no LTE in my country).
1
vote
2answers
1k views

Is it possible to set DNS for mobile network

I live in Canada and use an unblocking service to access US Netflix content, Pandora and Hulu. I would like to be able to use this service while not on my WiFi is there a way to set the DNS server to ...
1
vote
3answers
2k views

Mobile Network goes off often in my Galaxy s2

I am using Galaxy s2 since 5 months. I have started facing Network problems recently. The mobile network goes off often and it resumes most times by itself.. but sometimes I need to restart my phone ...
1
vote
2answers
10k views

Phone won't connect to mobile network

As of yesterday my phone was okay as I know I had a missed call and checked it on voicemail, but today I noticed that it is showing no signal when there should be one. The last thing I know I did was ...
1
vote
0answers
71 views

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

I'm currently 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 network ...
1
vote
0answers
47 views

Listen to Address Resolution Protocol (ARP) packet

Can an Android application generate or listen to ARP packet without root privilege ? Thank!
1
vote
1answer
102 views

How do I change DNS settings for 3G? [duplicate]

So I can use Twitter. It is okay when I use WiFi. But in 3G I cannot change DNS.
1
vote
0answers
1k 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
1answer
6k views

No mobile signal after installing CyanogenMod

I have a Samsung Galaxy S 2 (GT-I9100) and baseband version I9100XXMS3. As far as I understand from this page it's a UK modem, which is where I am. When using the latest stock Android I was still able ...
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
2answers
9k views

Losing network operator on Samsung Galaxy SIII mini

For some time now (I think it's from the latest Android update) I have this problem, that time to time (on daily basis) people can not reach me, like I would lose connection to the Network. I get an ...
1
vote
0answers
186 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
351 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 ...