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
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1answer
2k 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 ...
0
votes
1answer
2k views

Is there a way I can use a Galaxy Note on Virgin Mobile?

I want to know if it is possible to use a Samsung Galaxy Note on Virgin Mobile's network. If so how would I go about setting it up? Virgin doesn't currently offer the Note, so I can't just buy it ...
0
votes
1answer
30 views

Power Efficiency: Network mode 4G LTE vs 3G GSM/WCDMA?

Firstly I think this is the right place to post this, sorry if it isn't - and please let me know! Which network mode is more power efficient: LTE 4G or GSM 3G? I assume using a 4G network uses more ...
1
vote
2answers
12k 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 ...
2
votes
1answer
3k 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 ...
2
votes
1answer
4k 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
4k 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
65 views

What's the complete map from letter to mobile network type?

I was wondering about what all letters mean. Specifically the "R" that I'm currently on. I found this summary by some provider, but it doesn't contain the R-symbol that I'm on right now. These are ...
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 ...
4
votes
1answer
3k views

Android lollipop Nexus5 mobile network exclamation mark

I am using nexus5 and I have never had problems using mobile data network. Some days ago I updated to 5.0.1 and problems started occuring, exclamation mark on mobile network icon, internet stopped ...
2
votes
4answers
35k views

Can't download apps from Google Play store via mobile network

I have a Sony Xperia sola in Egypt. I bought it with Gingerbread, then I upgraded to ICS 4.0.4. After the upgrade, I became unable to download any apps from Google Play using my mobile network, and ...
0
votes
1answer
1k views

Mobile network settings - Not enabled for modifications (Greyed)

I bought a zte v7275 tablet Device information model number - ZTE V7275 android version - 4.0.4 kernel version- 3.0.21-perf-gc8726c4f Flash ROM which is likely to be locked to a single ...
17
votes
3answers
9k views

How to disable captive portal detection? How to remove exclamation mark on Wi-Fi or signal icon in lollipop?

When connected to the Internet, the system checks if it's in a walled garden, which is simply trying to connect to google. If it fails, in Android 5, there'll be an exclamation mark on the wifi icon ...
3
votes
1answer
1k views

DNS blocking on mobile networks?

I'm using my HTC One phone on Sprint's network in NYC, and noticed that my phone cannot access Imgur. On Chrome, when using mobile data (3G/4G): http://i.imgur.com/TDvhBMA.jpg Fails to resolve ...
1
vote
1answer
7k 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 ...
0
votes
0answers
71 views

Micromax A106-Network Issue after System update

Mobile Model- Micromax A106 I am facing some problem when I try to connect Internet after System update. When I switchon the Data Connection, the internet Symbol "E" is not appeared at the top and the ...
4
votes
1answer
382 views

How to change “Preferred Network Mode” using adb without reboot?

I'm trying to change my phone's (CM 12, Stock 4.2, both rooted) preferred network mode from "GSM/WCDMA" (0) to "WCDMA only" (2) and vice versa (there can be other modes too), using command-line only. ...
4
votes
6answers
11k 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 ...
1
vote
2answers
7k views

Signal problem with Samsung Galaxy Y GT-S5630 mobile

I am using Samsung Galaxy Y GT-S5630 phone with IDEA network provider. I am having signal loss problems many times a times. When I try to make a call, it says "Network unavailable". I though this ...
2
votes
0answers
99 views

Why does my phone say I am roaming when connected to my “home” network?

I recently got a new phone, the Elephone P7000 and it runs stock android 5.0. Everything seems to work perfectly apart from the fact that most of the time the top status bar says I am roaming. When I ...
0
votes
1answer
3k views

No option for “mobile network” on Dell Venue 8

My friend has bought new "Dell Venue 8 3830" tablet with Android JellyBean 4.3. Now we want to connect a 3g dongle (D-Link) via a micro-usb cable which came with it. When i connect the dongle to the ...
2
votes
3answers
3k 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 ...
0
votes
2answers
2k views

Micromax Unite 2 A106 updated to Lollipop version and no network or sim detected

Using Micromax Unite 2 A106, updated to latest version of lollipop, after finalization and restarting my phone is not able to detect any SIM/network. Also no display of selection of Mobile network is ...
0
votes
1answer
74 views

Make phone running Android 2.3.3 re-download configuration settings from ISP

When I first inserted my SIM into my phone, it prompted to download configuration settings for things such as Data, MMS etc... It worked fine for about a year but I have started having problems such ...
0
votes
1answer
519 views

Moto G2 internet connection switch from 3G to 2G network

I am using Moto G2 with Lollipop 5.0.2. And I am having this trouble that whenever I am using 3G service, it automatically switches to 2G and in between it gets back to 3G. This keeps on going and ...
1
vote
0answers
194 views

Change mobile network DNS on Lollipop and up

Ok, this is a constantly asked question, how to change mobile network DNS. But in different Android version, you will get different method. So this is the reason I ask this. I have already known a ...
0
votes
1answer
506 views

network problem after update in lollypop of Micromax unite 2

I updated my unite 2 4gb from service Center in Lollypop. After then its problem create no network some time . Then its fixe when I on flight mode and off it or restarting phone. But after some time ...
14
votes
2answers
21k 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 ...
1
vote
0answers
1k views

Lollipop update on MotoG causing no service for sim card

I was using Moto G(1st gen) phone for the past 1 year. I was using 2 sims and I didnt face any problem for 1 year. After getting lollipop update, I frequently get 'no service' for one of my sim. ...
0
votes
2answers
6k views

Unable to use Network: “Not Registered On Network”

I am using Samsung Galaxy Chat B5330 (officially upgraded from 4.0.4 to 4.1.2). It used to work fine, but since a few days I am not able to call or send sms or use any network related services. It ...
0
votes
0answers
30 views

Traffic logs on android

Very noob question here, but I was wondering if there is a simple way to look at how much traffic I've sent or received on android (not rooted, no specialist apps installed for it). I burned through ...
0
votes
1answer
54 views

How can I record mobile network traffic?

I need to record edge/3g mobile traffic in pcap file. I can't find any working app for this. How can I do this? Samsung Galaxy s3, root, cyanogenmod11.
1
vote
1answer
101 views

What range of tcp buffer size do you suggest for slow and fast networks?

If you search the net, you come across with ranges like these that claim would enhance your net throughput: net.tcp.buffersize.default=4096,87380,256960,4096, 16384,256960 ...
0
votes
0answers
85 views

Moto G 2nd Gen can't connect to the Internet when switching from 3G to 2G

I got a new Moto g2.When using the device with 3G, it works great. But when I switch to a 2G network, the internet connect stops working after a few seconds. Why is this happening?
0
votes
0answers
324 views

How to reset network settings on android?

I recently reset my phone to factory settings and now i am having network issues,I can't make or receive calls even when signal of my sim are full,only occasionally i can do it.Its not a problem of ...
1
vote
2answers
176 views

Can Telegram notifications be disabled?

Can you disable Telegram notifications somehow? I am seeing a huge battery consumption since last few weeks and after upgrading to Android 5.0.2. After one day of use battery app is reporting that ...
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, until I recently switched from the Samsung default UI TouchWiz to CyanogenMod on my Galaxy Note. The Task ...
19
votes
2answers
34k 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 ...
1
vote
0answers
160 views

How to lock network operator or to never go on roaming, or get out of roaming as soon as possible

I work really close to a country border, and I do NOT want my phone to connect to other operators than mine. Sometimes the operator from my home country will be unavailable for a brief period of ...
0
votes
0answers
5k 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 ...
1
vote
0answers
33 views

How does Android perform Data-Wifi Switch

I am trying to learn from Android source on Data-Wifi automatic switch. The closest I can get is DataCommand and WifiCommand, they seem to switch network preference (through ConnectivityManager), by ...
0
votes
1answer
45 views

How to lock android sim network?

I want to manually lock the android sim card network is that possible and how to do it?
0
votes
1answer
60 views

Network App Restriction

I recently bought a japanese cellphone (Fujitsu F-06e NX). It came with some really cool apps but most of them have limited functionality due to network work restrictions (Phone must be on docomo ntt ...
0
votes
0answers
2k 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
20 views

Can I connect Wi fi and 4G at the same time for different things [duplicate]

Is it posible to receive via WiFi data( only receive not send) to transmit later via 4G to internet Is not like hot spot(though maybe this is the name ) I just want to conect a wifi card or any ...
1
vote
0answers
71 views

How can I keep my mobile data connection up when establishing a non-internet capable WiFi connection?

I'm using a Raspberry Pi to stream music wirelessly inside my car. The Pi has a wireless network without real a exit to the outside world. I want to connect to that 'internet-less' network and still ...
0
votes
0answers
112 views

How to diagnose network connection issues?

My phone never connects to the 4G network, despite me being on a 4G plan (it at most connects to H+) and very frequently it'll lose the connection - can't use mobile data, receive SMSs or make phone ...
0
votes
0answers
104 views

ZTE Blade G lux - no network

I have a problem with my brand new ZTE Blade G lux. I bought it from Mexico (from authorized distributor, so that shouldn't be the problem) and it worked well with my mexican sim. When I got back home ...
1
vote
2answers
21k 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 ...
0
votes
0answers
37 views

How to use mobile data just for one application when connected to a specific WiFi network?

My company offer a open wifi, but its proxy blocks one of my application data (Whatsapp). I'd like to use wifi to all apps with only one exception (Whatsapp). My phone is not rooted (Galaxy Note 4). ...